Merging murder

Fixed Crash on Rift Removal

build.gradle

@@ -13,14 +13,15 @@ buildscript {
 
 apply plugin: 'forge'
 
-
-
-version = "2.2.3-" + System.getenv("BUILD_NUMBER")
-group= "com.stevenrs11.dimdoors" // http://maven.apache.org/guides/mini/guide-naming-conventions.html
+version = "2.2.4-" + System.getenv("BUILD_NUMBER")
+group = "com.stevenrs11.dimdoors" // http://maven.apache.org/guides/mini/guide-naming-conventions.html
 archivesBaseName = "DimensionalDoors"
 
 minecraft {
 	version = "1.6.4-9.11.1.964"
+	
+	replaceIn "mod_pocketDim.java"
+	replace "@VERSION@", project.version
 }
 
 targetCompatibility = '1.6'
@@ -28,15 +29,15 @@ sourceCompatibility = '1.6'
 
 processResources
 {
-    // replace stuff in mcmod.info, nothing else
+    // Replace stuff $version and $mcversion in mcmod.info
     from(sourceSets.main.resources.srcDirs) {
         include 'mcmod.info'
         
-        // replace version and mcversion
+        // Replace version and mcversion
         expand 'version':project.version, 'mcversion':project.minecraft.version
     }
         
-    // copy everything else, thats not the mcmod.info
+    // Copy everything else
     from(sourceSets.main.resources.srcDirs) {
         exclude 'mcmod.info'
     }

src/main/java/StevenDimDoors/experimental/DirectedGraph.java

@@ -165,8 +165,8 @@ public class DirectedGraph<U, V>
 	{
 		Edge<U, V> innerEdge = (Edge<U, V>) edge;
 
-		// Check that this edge actually belongs to this graph instance.
-		// Accepting foreign edges could corrupt the graph's internal state.
+		// Check that this node actually belongs to this graph instance.
+		// Accepting foreign nodes could corrupt the graph's internal state.
 		if (innerEdge.graphEntry.owner() != edges)
 		{
 			throw new IllegalArgumentException("The specified edge does not belong to this graph.");

src/main/java/StevenDimDoors/experimental/LinkPlan.java

@@ -1,120 +0,0 @@
-package StevenDimDoors.experimental;
-
-import StevenDimDoors.mod_pocketDim.Point3D;
-
-public class LinkPlan
-{
-	private RoomData source;
-	private RoomData destination;
-	private Point3D sourcePoint;
-	private Point3D destinationPoint;
-	private final boolean entrance;
-	private final boolean internal;
-	
-	private LinkPlan(RoomData source, boolean entrance, boolean internal)
-	{
-		if (source == null)
-		{
-			throw new IllegalArgumentException("source cannot be null.");
-		}
-		this.source = source;
-		this.destination = null;
-		this.sourcePoint = null;
-		this.destinationPoint = null;
-		this.entrance = entrance;
-		this.internal = internal;
-	}
-	
-	public static LinkPlan createInternalLink(RoomData source)
-	{
-		LinkPlan plan = new LinkPlan(source, false, true);
-		source.getOutboundLinks().add(plan);
-		return plan;
-	}
-	
-	public static LinkPlan createEntranceLink(RoomData source)
-	{
-		LinkPlan plan = new LinkPlan(source, true, false);
-		source.getOutboundLinks().add(plan);
-		return plan;
-	}
-	
-	public static LinkPlan createDungeonLink(RoomData source)
-	{
-		LinkPlan plan = new LinkPlan(source, false, false);
-		source.getOutboundLinks().add(plan);
-		return plan;
-	}
-	
-	public RoomData source()
-	{
-		return this.source;
-	}
-	
-	public RoomData destination()
-	{
-		return this.destination;
-	}
-	
-	public boolean isEntrance()
-	{
-		return entrance;
-	}
-	
-	public boolean isInternal()
-	{
-		return internal;
-	}
-	
-	public void remove()
-	{
-		if (source != null)
-		{
-			source.getOutboundLinks().remove(this);
-			source = null;
-		}
-		if (destination != null)
-		{
-			destination.getInboundLinks().remove(this);
-			destination = null;
-		}
-	}
-
-	public void setDestination(RoomData destination)
-	{
-		if (!internal)
-		{
-			throw new IllegalStateException("LinkPlan.setDestination() is only applicable to internal links.");
-		}
-		if (this.destination != null)
-		{
-			throw new IllegalStateException("destination can only be set once.");
-		}
-		if (destination == null)
-		{
-			throw new IllegalArgumentException("destination cannot be null.");
-		}
-		this.destination = destination;
-		destination.getInboundLinks().add(this);
-	}
-	
-	public Point3D sourcePoint()
-	{
-		return this.sourcePoint;
-	}
-	
-	public Point3D destinationPoint()
-	{
-		return this.destinationPoint;
-	}
-	
-	public void setSourcePoint(Point3D value)
-	{
-		this.sourcePoint = value;
-	}
-	
-	public void setDestinationPoint(Point3D value)
-	{
-		this.destinationPoint = value;
-	}
-}

src/main/java/StevenDimDoors/experimental/MazeBuilder.java

@@ -1,215 +1,63 @@
 package StevenDimDoors.experimental;
 
-import java.util.ArrayList;
 import java.util.Random;
-import java.util.Stack;
 
 import net.minecraft.block.Block;
 import net.minecraft.world.World;
 import net.minecraft.world.chunk.Chunk;
 import net.minecraft.world.chunk.storage.ExtendedBlockStorage;
-import StevenDimDoors.experimental.decorators.BaseDecorator;
-import StevenDimDoors.experimental.decorators.DecoratorFinder;
 import StevenDimDoors.mod_pocketDim.Point3D;
-import StevenDimDoors.mod_pocketDim.config.DDProperties;
-import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
-import StevenDimDoors.mod_pocketDim.core.NewDimData;
-import StevenDimDoors.mod_pocketDim.core.PocketManager;
 
 public class MazeBuilder
 {
-	private static final int POCKET_WALL_GAP = 4;
-	private static final int DECORATION_CHANCE = 1;
-	private static final int MAX_DECORATION_CHANCE = 3;
-	
 	private MazeBuilder() { }
 	
-	public static void generate(World world, int x, int y, int z, Random random, DDProperties properties)
+	public static void generate(World world, int x, int y, int z, Random random)
 	{
-		// ISSUE FOR LATER: The room needs to be shifted so as to be centered on its entrance
-		
 		MazeDesign design = MazeDesigner.generate(random);
 		Point3D offset = new Point3D(x - design.width() / 2, y - design.height() - 1, z - design.length() / 2);
 		SphereDecayOperation decay = new SphereDecayOperation(random, 0, 0, Block.stoneBrick.blockID, 2);
 		
-		buildRooms(design.getLayout(), world, offset);
-		carveDoorways(design.getLayout(), world, offset, decay, random);
+		buildRooms(design.getRoomGraph(), world, offset);
+		carveDoorways(design.getRoomGraph(), world, offset, decay, random);
+		
+		//placeDoors(design, world, offset);
+		
 		applyRandomDestruction(design, world, offset, decay, random);
-		decorateRooms(design.getLayout(), world, offset, random, properties);
-		buildPocketWalls(design, world, offset, properties);
 	}
 	
 	private static void applyRandomDestruction(MazeDesign design, World world,
 			Point3D offset, SphereDecayOperation decay, Random random)
 	{
-		final int DECAY_BOX_SIZE = 7;
-		final int DECAY_OPERATIONS = 5 + random.nextInt(5);
-		final int DECAY_ATTEMPTS = 20;
-		
-		int x, y, z;
-		int successes = 0;
-		int attempts = 0;
-		PartitionNode root = design.getRootPartition();
-		
-		for (; successes < DECAY_OPERATIONS && attempts < DECAY_ATTEMPTS; attempts++)
-		{
-			// Select the coordinates at which to apply the decay operation
-			x = random.nextInt(design.width()) - DECAY_BOX_SIZE / 2;
-			y = random.nextInt(design.height()) - DECAY_BOX_SIZE / 2;
-			z = random.nextInt(design.length()) - DECAY_BOX_SIZE / 2;
-			
-			// Check that the decay operation would not impact any protected areas
-			// and mark the affected areas as decayed
-			if (markDecayArea(x, y, z, DECAY_BOX_SIZE, root))
-			{
-				// Apply decay
-				decay.apply(world, offset.getX() + x, offset.getY() + y, offset.getZ() + z,
-						DECAY_BOX_SIZE, DECAY_BOX_SIZE, DECAY_BOX_SIZE);
-				successes++;
-			}
-		}
+		//final int DECAY_BOX_SIZE = 8  
 	}
 
-	private static boolean markDecayArea(int x, int y, int z, int DECAY_BOX_SIZE, PartitionNode<RoomData> root)
+	private static void buildRooms(DirectedGraph<PartitionNode, DoorwayData> roomGraph, World world, Point3D offset)
 	{
-		// Check if a given PartitionNode intersects the decay area. If it's a leaf, then check
-		// if it's protected or not. Otherwise, check its children. The specific area is valid
-		// if and only if there are no protected rooms and at least one (unprotected) room in it.
-		// Also list the unprotected rooms to mark them if the decay operation will proceed.
-		
-		RoomData room;
-		PartitionNode<RoomData> partition;
-		ArrayList<RoomData> targets = new ArrayList<RoomData>();
-		Stack<PartitionNode<RoomData>> nodes = new Stack<PartitionNode<RoomData>>();
-		BoundingBox decayBounds = new BoundingBox(x, y, z, DECAY_BOX_SIZE, DECAY_BOX_SIZE, DECAY_BOX_SIZE);
-		
-		// Use depth-first search to explore all intersecting partitions
-		nodes.push(root);
-		while (!nodes.isEmpty())
+		for (IGraphNode<PartitionNode, DoorwayData> node : roomGraph.nodes())
 		{
-			partition = nodes.pop();
-			if (decayBounds.intersects(partition))
-			{
-				if (partition.isLeaf())
-				{
-					room = partition.getData();
-					if (room.isProtected())
-						return false;
-					targets.add(room);
-				}
-				else
-				{
-					if (partition.leftChild() != null)
-						nodes.push(partition.leftChild());
-					if (partition.rightChild() != null)
-						nodes.push(partition.rightChild());
-				}
-			}
-		}
-		// If execution has reached this point, then there were no protected rooms.
-		// Mark all intersecting rooms as decayed.
-		for (RoomData target : targets)
-		{
-			target.setDecayed(true);
-		}
-		return !targets.isEmpty();
-	}
-
-	private static void buildRooms(DirectedGraph<RoomData, DoorwayData> layout, World world, Point3D offset)
-	{
-		for (IGraphNode<RoomData, DoorwayData> node : layout.nodes())
-		{
-			PartitionNode room = node.data().getPartitionNode();
+			PartitionNode room = node.data();
 			buildBox(world, offset, room.minCorner(), room.maxCorner(), Block.stoneBrick.blockID, 0);
 		}
 	}
 	
-	private static void decorateRooms(DirectedGraph<RoomData, DoorwayData> layout,
-			World world, Point3D offset, Random random, DDProperties properties)
-	{
-		RoomData room;
-		BaseDecorator decorator;
-		PartitionNode<RoomData> partition;
-		ArrayList<LinkPlan> links = new ArrayList<LinkPlan>();
-		
-		// Iterate over all rooms and apply decorators
-		for (IGraphNode<RoomData, DoorwayData> node : layout.nodes())
-		{
-			room = node.data();
-			partition = room.getPartitionNode();
-			links.addAll(room.getOutboundLinks());
-			// Protected rooms must be decorated because they have links.
-			// Otherwise, choose randomly whether to decorate.
-			if (room.isProtected() || random.nextInt(MAX_DECORATION_CHANCE) < DECORATION_CHANCE)
-			{
-				decorator = DecoratorFinder.find(room, random);
-				if (decorator != null)
-				{
-					decorator.decorate(room, world, offset, random, properties);
-				}
-			}
-		}
-		
-		// Iterate over all link plans and place links in the world
-		NewDimData dimension = PocketManager.getDimensionData(world);
-		for (LinkPlan plan : links)
-		{
-			createLinkFromPlan(plan, dimension, world);
-		}
-	}
-	
-	private static void createLinkFromPlan(LinkPlan plan, NewDimData dimension, World world)
-	{
-		// TODO: Support entrances! Right now we'll treat them as dungeon doors for testing
-		
-		DimLink link;
-		Point3D source;
-		Point3D destination;
-		int orientation;
-		
-		source = plan.sourcePoint();
-		orientation = world.getBlockMetadata(source.getX(), source.getY(), source.getZ()) & 3;
-		
-		// Check the link type and set the destination accordingly
-		if (plan.isInternal())
-		{
-			// Create a link between sections
-			destination = plan.destinationPoint();
-			link = dimension.createLink(source.getX(), source.getY(), source.getZ(), LinkTypes.DUNGEON, orientation);
-			dimension.setDestination(link, destination.getX(), destination.getY(), destination.getZ());
-		}
-		else
-		{
-			// Create a dungeon link
-			dimension.createLink(source.getX(), source.getY(), source.getZ(), LinkTypes.DUNGEON, orientation);
-		}
-	}
-	
-	private static void carveDoorways(DirectedGraph<RoomData, DoorwayData> layout, World world,
+	private static void carveDoorways(DirectedGraph<PartitionNode, DoorwayData> roomGraph, World world,
 			Point3D offset, SphereDecayOperation decay, Random random)
 	{	
 		char axis;
 		Point3D lower;
 		DoorwayData doorway;
 		
-		for (IGraphNode<RoomData, DoorwayData> node : layout.nodes())
+		for (IGraphNode<PartitionNode, DoorwayData> node : roomGraph.nodes())
 		{
-			for (IEdge<RoomData, DoorwayData> passage : node.outbound())
+			for (IEdge<PartitionNode, DoorwayData> passage : node.outbound())
 			{
-				// Carve out the passage
 				doorway = passage.data();
 				axis = doorway.axis();
 				lower = doorway.minCorner();
 				carveDoorway(world, axis, offset.getX() + lower.getX(), offset.getY() + lower.getY(),
 						offset.getZ() + lower.getZ(), doorway.width(), doorway.height(), doorway.length(),
 						decay, random);
-				
-				// If this is a vertical passage, then mark the upper room as decayed
-				if (axis == DoorwayData.Y_AXIS)
-				{
-					passage.tail().data().setDecayed(true);
-				}
 			}
 		}
 	}
@@ -220,8 +68,6 @@ public class MazeBuilder
 		final int MIN_DOUBLE_DOOR_SPAN = 10;
 		
 		int gap;
-		int rx;
-		int rz;
 		switch (axis)
 		{
 			case DoorwayData.X_AXIS:
@@ -286,10 +132,9 @@ public class MazeBuilder
 					{
 						gap = 6;
 					}
-					rx = x + random.nextInt(width - gap - 1) + 1;
-					rz = z + random.nextInt(length - gap - 1) + 1;
-					carveHole(world, rx + gap / 2, y, rz + gap / 2);
-					decay.apply(world, rx, y - 1, rz, gap, 4, gap);
+					decay.apply(world,
+							x + random.nextInt(width - gap - 1) + 1, y - 1,
+							z + random.nextInt(length - gap - 1) + 1, gap, 4, gap);
 				}
 				else
 				{
@@ -321,18 +166,6 @@ public class MazeBuilder
 		setBlockDirectly(world, x, y + 1, z, 0, 0);
 	}
 
-	private static void buildPocketWalls(MazeDesign design, World world, Point3D offset, DDProperties properties)
-	{
-		// Build the inner Fabric of Reality box
-		Point3D minCorner = new Point3D(-POCKET_WALL_GAP - 1, -POCKET_WALL_GAP - 1, -POCKET_WALL_GAP - 1);
-		Point3D maxCorner = new Point3D(design.width() + POCKET_WALL_GAP, design.height() + POCKET_WALL_GAP, design.length() + POCKET_WALL_GAP);
-		buildBox(world, offset, minCorner, maxCorner, properties.FabricBlockID, 0);
-		
-		// Build the outer Eternal Fabric box
-		minCorner.add(-1, -1, -1);
-		maxCorner.add(1, 1, 1);
-		buildBox(world, offset, minCorner, maxCorner, properties.PermaFabricBlockID, 0);
-	}
 	
 	private static void buildBox(World world, Point3D offset, Point3D minCorner, Point3D maxCorner, int blockID, int metadata)
 	{
@@ -356,15 +189,15 @@ public class MazeBuilder
 		}
 		for (x = minX; x <= maxX; x++)
 		{
-			for (y = minY + 1; y < maxY; y++)
+			for (y = minY; y <= maxY; y++)
 			{
 				setBlockDirectly(world, x, y, minZ, blockID, metadata);
 				setBlockDirectly(world, x, y, maxZ, blockID, metadata);
 			}
 		}
-		for (z = minZ + 1; z < maxZ; z++)
+		for (z = minZ; z <= maxZ; z++)
 		{
-			for (y = minY + 1; y < maxY; y++)
+			for (y = minY; y <= maxY; y++)
 			{
 				setBlockDirectly(world, minX, y, z, blockID, metadata);
 				setBlockDirectly(world, maxX, y, z, blockID, metadata);

src/main/java/StevenDimDoors/experimental/MazeDesign.java

@@ -4,23 +4,37 @@ import java.util.ArrayList;
 
 public class MazeDesign
 {
-	private PartitionNode<RoomData> root;
-	private DirectedGraph<RoomData, DoorwayData> layout;
+	private PartitionNode root;
+	private DirectedGraph<PartitionNode, DoorwayData> rooms;
+	private ArrayList<IGraphNode<PartitionNode, DoorwayData>> cores;
+	private ArrayList<BoundingBox> protectedAreas;
 	
-	public MazeDesign(PartitionNode<RoomData> root, DirectedGraph<RoomData, DoorwayData> layout)
+	public MazeDesign(PartitionNode root, DirectedGraph<PartitionNode, DoorwayData> rooms,
+			ArrayList<IGraphNode<PartitionNode, DoorwayData>> cores)
 	{
 		this.root = root;
-		this.layout = layout;
+		this.rooms = rooms;
+		this.cores = cores;
 	}
 
-	public PartitionNode<RoomData> getRootPartition()
+	public PartitionNode getRootPartition()
 	{
 		return root;
 	}
 
-	public DirectedGraph<RoomData, DoorwayData> getLayout()
+	public DirectedGraph<PartitionNode, DoorwayData> getRoomGraph()
 	{
-		return layout;
+		return rooms;
+	}
+
+	public ArrayList<IGraphNode<PartitionNode, DoorwayData>> getCoreNodes()
+	{
+		return cores;
+	}
+	
+	public ArrayList<BoundingBox> getProtectedAreas()
+	{
+		return protectedAreas;
 	}
 	
 	public int width()

src/main/java/StevenDimDoors/experimental/MazeDesigner.java

@@ -1,9 +1,8 @@
 package StevenDimDoors.experimental;
 
-import java.lang.reflect.Array;
 import java.util.ArrayList;
 import java.util.Collections;
-import java.util.HashSet;
+import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.Queue;
 import java.util.Random;
@@ -26,46 +25,54 @@ public class MazeDesigner
 	public static MazeDesign generate(Random random)
 	{
 		// Construct a random binary space partitioning of our maze volume
-		PartitionNode<RoomData> root = partitionRooms(MAZE_WIDTH, MAZE_HEIGHT, MAZE_LENGTH, SPLIT_COUNT, random);
+		PartitionNode root = partitionRooms(MAZE_WIDTH, MAZE_HEIGHT, MAZE_LENGTH, SPLIT_COUNT, random);
 
-		// Attach rooms to all the leaf nodes of the partition tree
-		ArrayList<RoomData> rooms = new ArrayList<RoomData>(1 << SPLIT_COUNT);
-		attachRooms(root, rooms);
-		
-		// Shuffle the list of rooms so that they're not listed in any ordered way in the room graph
-		// This is the only convenient way of randomizing the maze sections generated later
-		Collections.shuffle(rooms, random);
+		// List all the leaf nodes of the partition tree, which denote individual rooms
+		ArrayList<PartitionNode> partitions = new ArrayList<PartitionNode>(1 << SPLIT_COUNT);
+		listRoomPartitions(root, partitions);
 		
 		// Construct an adjacency graph of the rooms we've carved out. Two rooms are
 		// considered adjacent if and only if a doorway could connect them. Their
 		// common boundary must be large enough for a doorway.
-		DirectedGraph<RoomData, DoorwayData> layout = createRoomGraph(root, rooms, random);
+		DirectedGraph<PartitionNode, DoorwayData> rooms = createRoomGraph(root, partitions, random);
 		
 		// Cut out random subgraphs from the adjacency graph
-		ArrayList<RoomData> cores = createMazeSections(layout, random);
+		ArrayList<IGraphNode<PartitionNode, DoorwayData>> cores = createMazeSections(rooms, random);
 		
 		// Remove unnecessary passages through floors/ceilings and some from the walls
-		for (RoomData core : cores)
+		for (IGraphNode<PartitionNode, DoorwayData> core : cores)
 		{
-			pruneDoorways(core.getLayoutNode(), layout, random);
+			pruneDoorways(core, rooms, random);
 		}
 		
-		// Set up the placement of dimensional doors within the maze
-		createMazeLinks(layout, cores, random);
-		
-		return new MazeDesign(root, layout);
+		return new MazeDesign(root, rooms, cores);
 	}
 
-	private static void attachRooms(PartitionNode<RoomData> node, ArrayList<RoomData> partitions)
+	private static void listRoomPartitions(PartitionNode node, ArrayList<PartitionNode> partitions)
 	{
 		if (node.isLeaf())
 		{
-			partitions.add(new RoomData(node));
+			partitions.add(node);
 		}
 		else
 		{
-			attachRooms(node.leftChild(), partitions);
-			attachRooms(node.rightChild(), partitions);
+			listRoomPartitions(node.leftChild(), partitions);
+			listRoomPartitions(node.rightChild(), partitions);
+		}
+	}
+	
+	private static void removeRoomPartitions(PartitionNode node)
+	{
+		// Remove a node and any of its ancestors that become leaf nodes
+		PartitionNode parent;
+		PartitionNode current;
+		
+		current = node;
+		while (current != null && current.isLeaf())
+		{
+			parent = current.parent();
+			current.remove();
+			current = parent;
 		}
 	}
 	
@@ -133,25 +140,35 @@ public class MazeDesigner
 		}
 	}
 	
-	private static DirectedGraph<RoomData, DoorwayData> createRoomGraph(PartitionNode<RoomData> root, ArrayList<RoomData> rooms, Random random)
+	private static DirectedGraph<PartitionNode, DoorwayData> createRoomGraph(PartitionNode root, ArrayList<PartitionNode> partitions, Random random)
 	{
-		DirectedGraph<RoomData, DoorwayData> layout = new DirectedGraph<RoomData, DoorwayData>();
+		DirectedGraph<PartitionNode, DoorwayData> roomGraph = new DirectedGraph<PartitionNode, DoorwayData>();
+		HashMap<PartitionNode, IGraphNode<PartitionNode, DoorwayData>> roomsToGraph = new HashMap<PartitionNode, IGraphNode<PartitionNode, DoorwayData>>(2 * partitions.size());
+		
+		// Shuffle the list of rooms so that they're not listed in any ordered way in the room graph
+		// This is the only convenient way of randomizing the maze sections generated later
+		Collections.shuffle(partitions, random);
 		
 		// Add all rooms to a graph
-		for (RoomData room : rooms)
+		// Also add them to a map so we can associate rooms with their graph nodes
+		// The map is needed for linking graph nodes based on adjacent partitions
+		for (PartitionNode partition : partitions)
 		{
-			room.addToLayout(layout);
-		}
-		// Add edges for each room
-		for (IGraphNode<RoomData, DoorwayData> node : layout.nodes())
-		{
-			findDoorways(node.data(), root, layout);
-		}
-		return layout;
+			roomsToGraph.put(partition, roomGraph.addNode(partition));
 		}
 		
-	private static void findDoorways(RoomData room, PartitionNode<RoomData> root,
-			DirectedGraph<RoomData, DoorwayData> layout)
+		// Add edges for each room
+		for (IGraphNode<PartitionNode, DoorwayData> node : roomGraph.nodes())
+		{
+			findDoorways(node, root, roomsToGraph, roomGraph);
+		}
+		
+		return roomGraph;
+	}
+	
+	private static void findDoorways(IGraphNode<PartitionNode, DoorwayData> roomNode, PartitionNode root,
+			HashMap<PartitionNode, IGraphNode<PartitionNode, DoorwayData>> roomsToGraph,
+			DirectedGraph<PartitionNode, DoorwayData> roomGraph)
 	{
 		// This function finds rooms adjacent to a specified room that could be connected
 		// to it through a doorway. Edges are added to the room graph to denote rooms that
@@ -169,7 +186,7 @@ public class MazeDesigner
 		// there will always be a way to walk from any room to any other room.
 		
 		boolean[][] detected;
-		PartitionNode<RoomData> adjacent;
+		PartitionNode adjacent;
 		
 		int a, b, c;
 		int p, q, r;
@@ -178,10 +195,11 @@ public class MazeDesigner
 		Point3D otherMin;
 		Point3D otherMax;
 		DoorwayData doorway;
+		IGraphNode<PartitionNode, DoorwayData> adjacentNode;
 		
-		PartitionNode partition = room.getPartitionNode();
-		Point3D minCorner = partition.minCorner();
-		Point3D maxCorner = partition.maxCorner();
+		PartitionNode room = roomNode.data();
+		Point3D minCorner = room.minCorner();
+		Point3D maxCorner = room.maxCorner();
 		
 		int minX = minCorner.getX();
 		int minY = minCorner.getY();
@@ -191,9 +209,9 @@ public class MazeDesigner
 		int maxY = maxCorner.getY();
 		int maxZ = maxCorner.getZ();
 		
-		int width = partition.width();
-		int height = partition.height();
-		int length = partition.length();
+		int width = room.width();
+		int height = room.height();
+		int length = room.length();
 		
 		if (maxZ < root.maxCorner().getZ())
 		{
@@ -229,7 +247,8 @@ public class MazeDesigner
 								otherMin = new Point3D(minXI, minYI, maxZ);
 								otherMax = new Point3D(maxXI, maxYI, maxZ + 1);
 								doorway = new DoorwayData(otherMin, otherMax, DoorwayData.Z_AXIS);
-								layout.addEdge(room.getLayoutNode(), adjacent.getData().getLayoutNode(), doorway);
+								adjacentNode = roomsToGraph.get(adjacent);
+								roomGraph.addEdge(roomNode, adjacentNode, doorway);
 							}
 						}
 						else
@@ -276,7 +295,8 @@ public class MazeDesigner
 								otherMin = new Point3D(maxX, minYI, minZI);
 								otherMax = new Point3D(maxX + 1, maxYI, maxZI);
 								doorway = new DoorwayData(otherMin, otherMax, DoorwayData.X_AXIS);
-								layout.addEdge(room.getLayoutNode(), adjacent.getData().getLayoutNode(), doorway);
+								adjacentNode = roomsToGraph.get(adjacent);
+								roomGraph.addEdge(roomNode, adjacentNode, doorway);
 							}
 						}
 						else
@@ -323,7 +343,8 @@ public class MazeDesigner
 								otherMin = new Point3D(minXI, maxY, minZI);
 								otherMax = new Point3D(maxXI, maxY + 1, maxZI);
 								doorway = new DoorwayData(otherMin, otherMax, DoorwayData.Y_AXIS);
-								layout.addEdge(room.getLayoutNode(), adjacent.getData().getLayoutNode(), doorway);
+								adjacentNode = roomsToGraph.get(adjacent);
+								roomGraph.addEdge(roomNode, adjacentNode, doorway);
 							}
 						}
 						else
@@ -338,130 +359,108 @@ public class MazeDesigner
 		//Done!
 	}
 	
-	private static ArrayList<RoomData> createMazeSections(DirectedGraph<RoomData, DoorwayData> layout, Random random)
+	private static ArrayList<IGraphNode<PartitionNode, DoorwayData>> createMazeSections(DirectedGraph<PartitionNode, DoorwayData> roomGraph, Random random)
 	{
 		// The randomness of the sections generated here hinges on
 		// the nodes in the graph being in a random order. We assume
 		// that was handled in a previous step!
 		
-		// We split the maze into sections by choosing core rooms and removing
-		// rooms that are a certain number of doorways away. However, for a section
-		// to be valid, it must also have enough space for at least two doors in
-		// rooms without floor holes. If a section can't fit two doors, more
-		// neighboring rooms are added until the necessary space is found or the
-		// search space is exhausted.
-		
-		final int MAX_DISTANCE = 2 + random.nextInt(2);
+		final int MAX_DISTANCE = 2;
 		final int MIN_SECTION_ROOMS = 5;
-		final int MIN_SECTION_CAPACITY = 2;
 		
 		int distance;
-		int capacity;
-		RoomData room;
-		RoomData neighbor;
-		boolean hasHoles;
-		IGraphNode<RoomData, DoorwayData> roomNode;
+		IGraphNode<PartitionNode, DoorwayData> current;
+		IGraphNode<PartitionNode, DoorwayData> neighbor;
 		
-		ArrayList<RoomData> cores = new ArrayList<RoomData>();
-		ArrayList<RoomData> section = new ArrayList<RoomData>();
-		ArrayList<IGraphNode<RoomData, DoorwayData>> nodes = new ArrayList<IGraphNode<RoomData, DoorwayData>>(layout.nodeCount());
+		ArrayList<IGraphNode<PartitionNode, DoorwayData>> cores = new ArrayList<IGraphNode<PartitionNode, DoorwayData>>();
+		ArrayList<IGraphNode<PartitionNode, DoorwayData>> removals = new ArrayList<IGraphNode<PartitionNode, DoorwayData>>();
+		ArrayList<IGraphNode<PartitionNode, DoorwayData>> section = new ArrayList<IGraphNode<PartitionNode, DoorwayData>>();
 		
-		Queue<RoomData> ordering = new LinkedList<RoomData>();
-		
-		// List all graph nodes so that we can iterate over this list instead
-		// of using the graph's iterator. That avoids the risk of breaking
-		// the graph's iterator during removals.
-		for (IGraphNode<RoomData, DoorwayData> node : layout.nodes())
-		{
-			nodes.add(node);
-		}
+		Queue<IGraphNode<PartitionNode, DoorwayData>> ordering = new LinkedList<IGraphNode<PartitionNode, DoorwayData>>();
+		HashMap<IGraphNode<PartitionNode, DoorwayData>, Integer> distances = new HashMap<IGraphNode<PartitionNode, DoorwayData>, Integer>();
 		
 		// Repeatedly generate sections until all nodes have been visited
-		for (IGraphNode<RoomData, DoorwayData> node : nodes)
+		for (IGraphNode<PartitionNode, DoorwayData> node : roomGraph.nodes())
 		{
-			// If this room hasn't been visited (distance = -1), then use it as the core of a new section
-			// Otherwise, ignore it, since it was already processed. Also make sure to check that room
-			// isn't null, which happens if the room was removed previously.
-			room = node.data();
-			if (room != null && room.getDistance() < 0)
+			// If this node hasn't been visited, then use it as the core of a new section
+			// Otherwise, ignore it, since it was already processed
+			if (!distances.containsKey(node))
 			{
 				// Perform a breadth-first search to tag surrounding nodes with distances
-				ordering.add(room);
-				room.setDistance(0);
+				distances.put(node, 0);
+				ordering.add(node);
 				section.clear();
-				capacity = 0;
 				
-				while (room != null && (room.getDistance() <= MAX_DISTANCE || capacity < 2))
-				{
-					ordering.remove();
-					section.add(room);
-					roomNode = room.getLayoutNode();
-					distance = room.getDistance() + 1;
-					hasHoles = false;
-					
-					// Visit neighboring rooms and assign them distances,
-					// if they don't have a proper distance assigned already.
-					// Also check for floor holes.
-					for (IEdge<RoomData, DoorwayData> edge : roomNode.inbound())
-					{
-						neighbor = edge.head().data();
-						if (neighbor.getDistance() < 0)
-						{
-							neighbor.setDistance(distance);
-							ordering.add(neighbor);
-						}
-						if (edge.data().axis() == DoorwayData.Y_AXIS)
-						{
-							hasHoles = true;
-						}
-					}
-					for (IEdge<RoomData, DoorwayData> edge : roomNode.outbound())
-					{
-						neighbor = edge.tail().data();
-						if (neighbor.getDistance() < 0)
-						{
-							neighbor.setDistance(distance);
-							ordering.add(neighbor);
-						}
-					}
-					
-					// Count this room's door capacity if it has no floor holes
-					if (!hasHoles)
-					{
-						capacity += room.estimateDoorCapacity();
-					}
-					
-					room = ordering.peek();
-				}
-				
-				// The remaining rooms in the ordering are those that are at the
-				// frontier of structure. They must be removed to create a gap
-				// between this section and other sections.
 				while (!ordering.isEmpty())
 				{
-					ordering.remove().remove();
-				}
+					current = ordering.remove();
+					distance = distances.get(current) + 1;
 					
-				// Check if this section contains enough rooms and capacity for doors
-				if (section.size() >= MIN_SECTION_ROOMS && capacity >= MIN_SECTION_CAPACITY)
+					if (distance <= MAX_DISTANCE + 1)
 					{
-					cores.add(node.data());
+						section.add(current);
+						
+						// Visit neighboring nodes and assign them distances, if they don't
+						// have a distance assigned already
+						for (IEdge<PartitionNode, DoorwayData> edge : current.inbound())
+						{
+							neighbor = edge.head();
+							if (!distances.containsKey(neighbor))
+							{
+								distances.put(neighbor, distance);
+								ordering.add(neighbor);
+							}
+						}
+						for (IEdge<PartitionNode, DoorwayData> edge : current.outbound())
+						{
+							neighbor = edge.tail();
+							if (!distances.containsKey(neighbor))
+							{
+								distances.put(neighbor, distance);
+								ordering.add(neighbor);
+							}
+						}
 					}
 					else
 					{
-					// Discard the whole section
-					for (RoomData target : section)
+						removals.add(current);
+						break;
+					}
+				}
+				
+				// List nodes that have a distance of exactly MAX_DISTANCE + 1
+				// Those are precisely the nodes that remain in the queue
+				// We can't remove them immediately because that could break
+				// the iterator for the graph.
+				while (!ordering.isEmpty())
 				{
-						target.remove();
+					removals.add(ordering.remove());
+				}
+				
+				// Check if this section contains enough rooms
+				if (section.size() >= MIN_SECTION_ROOMS)
+				{
+					cores.add(node);
+				}
+				else
+				{
+					removals.addAll(section);
 				}
 			}
 		}
+		
+		// Remove all the nodes that were listed for removal
+		// Also remove unused partitions from the partition tree
+		for (IGraphNode<PartitionNode, DoorwayData> node : removals)
+		{
+			removeRoomPartitions(node.data());
+			roomGraph.removeNode(node);
 		}
 		return cores;
 	}
 	
-	private static void pruneDoorways(IGraphNode<RoomData, DoorwayData> core,
-			DirectedGraph<RoomData, DoorwayData> layout, Random random)
+	private static void pruneDoorways(IGraphNode<PartitionNode, DoorwayData> core,
+			DirectedGraph<PartitionNode, DoorwayData> rooms, Random random)
 	{
 		// We receive a node for one of the rooms in a section of the maze
 		// and we need to remove as many floor doorways as possible while
@@ -479,12 +478,12 @@ public class MazeDesigner
 		// idea applies for the other doorways, plus some randomness.
 		
 		// First, list all nodes in the subgraph
-		IGraphNode<RoomData, DoorwayData> current;
-		IGraphNode<RoomData, DoorwayData> neighbor;
+		IGraphNode<PartitionNode, DoorwayData> current;
+		IGraphNode<PartitionNode, DoorwayData> neighbor;
 		
-		Stack<IGraphNode<RoomData, DoorwayData>> ordering = new Stack<IGraphNode<RoomData, DoorwayData>>();
-		ArrayList<IGraphNode<RoomData, DoorwayData>> subgraph = new ArrayList<IGraphNode<RoomData, DoorwayData>>(64);
-		DisjointSet<IGraphNode<RoomData, DoorwayData>> components = new DisjointSet<IGraphNode<RoomData, DoorwayData>>(128);
+		Stack<IGraphNode<PartitionNode, DoorwayData>> ordering = new Stack<IGraphNode<PartitionNode, DoorwayData>>();
+		ArrayList<IGraphNode<PartitionNode, DoorwayData>> subgraph = new ArrayList<IGraphNode<PartitionNode, DoorwayData>>(64);
+		DisjointSet<IGraphNode<PartitionNode, DoorwayData>> components = new DisjointSet<IGraphNode<PartitionNode, DoorwayData>>(128);
 		
 		ordering.add(core);
 		components.makeSet(core);
@@ -493,7 +492,7 @@ public class MazeDesigner
 			current = ordering.pop();
 			subgraph.add(current);
 			
-			for (IEdge<RoomData, DoorwayData> edge : current.inbound())
+			for (IEdge<PartitionNode, DoorwayData> edge : current.inbound())
 			{
 				neighbor = edge.head();
 				if (components.makeSet(neighbor))
@@ -501,7 +500,7 @@ public class MazeDesigner
 					ordering.add(neighbor);
 				}
 			}
-			for (IEdge<RoomData, DoorwayData> edge : current.outbound())
+			for (IEdge<PartitionNode, DoorwayData> edge : current.outbound())
 			{
 				neighbor = edge.tail();
 				if (components.makeSet(neighbor))
@@ -511,17 +510,15 @@ public class MazeDesigner
 			}
 		}
 		
-		// Now iterate over the list of nodes and merge their sets based on
-		// being connected by X_AXIS or Z_AXIS doorways. We only have to look
-		// at outbound edges since inbound edges mirror them. List any Y_AXIS
-		// doorways we come across to consider removing them later, depending
-		// on their impact on connectedness.
-		ArrayList<IEdge<RoomData, DoorwayData>> targets =
-				new ArrayList<IEdge<RoomData, DoorwayData>>();
+		// Now iterate over the list of nodes and merge their sets
+		// We only have to look at outbound edges since inbound edges mirror them
+		// Also list any Y_AXIS doorways we come across
+		ArrayList<IEdge<PartitionNode, DoorwayData>> targets =
+				new ArrayList<IEdge<PartitionNode, DoorwayData>>();
 		
-		for (IGraphNode<RoomData, DoorwayData> room : subgraph)
+		for (IGraphNode<PartitionNode, DoorwayData> room : subgraph)
 		{
-			for (IEdge<RoomData, DoorwayData> passage : room.outbound())
+			for (IEdge<PartitionNode, DoorwayData> passage : room.outbound())
 			{
 				if (passage.data().axis() != DoorwayData.Y_AXIS)
 				{
@@ -538,12 +535,11 @@ public class MazeDesigner
 		Collections.shuffle(targets, random);
 		
 		// Merge sets together and remove unnecessary doorways
-		for (IEdge<RoomData, DoorwayData> passage : targets)
+		for (IEdge<PartitionNode, DoorwayData> passage : targets)
 		{
 			if (!components.mergeSets(passage.head(), passage.tail()))
 			{
-				layout.removeEdge(passage);
-				
+				rooms.removeEdge(passage);
 			}
 		}
 		
@@ -552,13 +548,13 @@ public class MazeDesigner
 		components.clear();
 		targets.clear();
 		
-		for (IGraphNode<RoomData, DoorwayData> room : subgraph)
+		for (IGraphNode<PartitionNode, DoorwayData> room : subgraph)
 		{
 			components.makeSet(room);
 		}
-		for (IGraphNode<RoomData, DoorwayData> room : subgraph)
+		for (IGraphNode<PartitionNode, DoorwayData> room : subgraph)
 		{
-			for (IEdge<RoomData, DoorwayData> passage : room.outbound())
+			for (IEdge<PartitionNode, DoorwayData> passage : room.outbound())
 			{
 				if (passage.data().axis() == DoorwayData.Y_AXIS)
 				{
@@ -571,198 +567,13 @@ public class MazeDesigner
 			}
 		}
 		Collections.shuffle(targets, random);
-		for (IEdge<RoomData, DoorwayData> passage : targets)
+		for (IEdge<PartitionNode, DoorwayData> passage : targets)
 		{
 			if (!components.mergeSets(passage.head(), passage.tail()) && random.nextBoolean())
 			{
-				layout.removeEdge(passage);
+				rooms.removeEdge(passage);
 			}
 		}
 	}
 	
-	private static void createMazeLinks(DirectedGraph<RoomData, DoorwayData> layout,
-			ArrayList<RoomData> cores, Random random)
-	{
-		// We have 4 objectives here...
-		// 1. Place the entrance to the maze
-		// 2. Place links to other dungeons
-		// 3. Place internal links connecting the different sections of the maze
-		// 4. Place more internal links to confuse people
-		
-		// We need to start by building up data for each section, such as their
-		// door capacities and the rooms available for placing doors.
-		int index;
-		int count;
-		SectionData selection;
-		SectionData destination;
-		ArrayList<SectionData> allSections;
-		ArrayList<SectionData> usableSections;
-
-		// Check if there is only one section. Our concerns differ depending
-		// on whether there is one or more than one.
-		if (cores.size() > 1)
-		{	
-			// More than 1 section
-			allSections = new ArrayList<SectionData>(cores.size());
-			for (RoomData core : cores)
-			{
-				allSections.add( SectionData.createFromCore(core.getLayoutNode()) );
-			}
-			usableSections = (ArrayList<SectionData>) allSections.clone();
-			
-			// Select the room in which to place the entrance.
-			// We can safely consider all sections because createMazeSections()
-			// guarantees that each one has at least the capacity for 2 doors.
-			// Remove the selected section if it falls below a capacity of 2
-			// since we need to leave at least 1 capacity for section linking.
-			index = random.nextInt(usableSections.size());
-			selection = usableSections.get(index);
-			selection.createEntranceLink(random);
-			if (selection.capacity() <= 1)
-			{
-				usableSections.remove(index);
-			}
-			
-			// Place 3 to 4 dungeon doors in random sections
-			// Remove any sections that fall under a capacity of 2.
-			count = 3 + random.nextInt(2);
-			for (; count > 0 && !usableSections.isEmpty(); count--)
-			{
-				index = random.nextInt(usableSections.size());
-				selection = usableSections.get(index);
-				selection.createDungeonLink(random);
-				if (selection.capacity() <= 1)
-				{
-					usableSections.remove(index);
-				}
-			}
-			
-			// The next task is to place internal links. These links must connect
-			// the different maze sections to create a strongly connected graph.
-			linkMazeSections(allSections, random);
-			
-			// Add 1 to 3 extra internal links to confuse people
-			usableSections.clear();
-			for (SectionData section : allSections)
-			{
-				if (section.capacity() > 0)
-				{
-					usableSections.add(section);
-				}
-			}
-			count = 1 + random.nextInt(3);
-			for (; count > 0 && !usableSections.isEmpty(); count--)
-			{
-				index = random.nextInt(usableSections.size());
-				selection = usableSections.get(index);
-				destination = allSections.get( random.nextInt(allSections.size()) );
-				selection.reserveSectionLink(destination, random);
-				if (selection.capacity() == 0)
-				{
-					usableSections.remove(index);
-				}
-			}
-			
-			// Finally, make sure to process all reservations for section links.
-			for (SectionData section : allSections)
-			{
-				section.processReservedLinks(random);
-			}
-		}
-		else
-		{
-			// Only 1 section
-			selection = SectionData.createFromCore(cores.get(0).getLayoutNode());
-			// Place entrance door in a random room
-			selection.createEntranceLink(random);
-			// Place 3 to 4 dungeon doors or fewer, based on capacity
-			count = Math.min(3 + random.nextInt(2), selection.capacity());
-			for (; count > 0; count--)
-			{
-				selection.createDungeonLink(random);
-			}
-		}
-	}
-	
-	private static void linkMazeSections(ArrayList<SectionData> sections, Random random)
-	{
-		// This algorithm constructs links sections together using Dimensional Doors
-		// to create a random strongly connected graph. It takes into account capacity
-		// constraints as well. We assume that all sections have at least 1 door capacity.
-		final int EXTENSION_CHANCE = 2;
-		final int MAX_EXTENSION_CHANCE = 3;
-		
-		int index;
-		SectionData start;
-		SectionData current;
-		SectionData next;
-		
-		// Total spare capacity of the sections not in "remaining"
-		int capacity;
-		// Sections not in the graph
-		ArrayList<SectionData> remaining = (ArrayList<SectionData>) sections.clone();
-		// Sections that are part of an incomplete cycle
-		ArrayList<SectionData> attached = new ArrayList<SectionData>(sections.size());
-		// Sections that are part of a cycle and thus strongly connected
-		ArrayList<SectionData> connected = new ArrayList<SectionData>(sections.size());
-		// Sections that are part of a cycle and have spare capacity - used to start new cycles
-		ArrayList<SectionData> starters = new ArrayList<SectionData>(sections.size());
-		
-		// Shuffle remaining to achieve randomness
-		Collections.shuffle(remaining, random);
-		// Remove the starting node to serve as the base of our strongly connected graph
-		start = remaining.remove(remaining.size() - 1);
-		starters.add(start);
-		connected.add(start);
-		capacity = start.capacity();
-		
-		// Repeat until all sections are connected
-		while (!remaining.isEmpty())
-		{
-			// Select a section from which to start a new cycle
-			index = random.nextInt(starters.size());
-			start = starters.get(index);
-			// Select the first new section in the cycle and link to it
-			current = remaining.remove(remaining.size() - 1);
-			attached.add(current);
-			start.reserveSectionLink(current, random);
-			// Add the current section's capacity to the total, but subtract two to account
-			// for the link just created and for the future link from this section to another
-			capacity += current.capacity() - 2;
-			// Remove the starting section from starters if it has exhausted its capacity
-			if (start.capacity() == 0)
-			{
-				starters.remove(index);
-			}
-			
-			// Continue attaching sections to the partial cycle while there are are still sections
-			// left to be added and we have no spare capacity. Or we could randomly decide to
-			// continue even with spare capacity. Spare capacity means we could start a new cycle
-			// safely and still achieve strong connectivity. Randomness here influences the kinds
-			// of graphs we can get.
-			while (!remaining.isEmpty() && (capacity == 0 ||
-					random.nextInt(MAX_EXTENSION_CHANCE) < EXTENSION_CHANCE))
-			{
-				next = remaining.remove(remaining.size() - 1);
-				attached.add(next);
-				current.reserveSectionLink(next, random);
-				// Account for this section's capacity, but subtract one for
-				// the future link that will connect this section to another
-				capacity += next.capacity() - 1;
-				current = next;
-			}
-			next = connected.get(random.nextInt(connected.size()));
-			current.reserveSectionLink(next, random);
-			for (SectionData section : attached)
-			{
-				connected.add(section);
-				if (section.capacity() > 0)
-				{
-					starters.add(section);
-				}
-			}
-		}
-		
-		// Done! At this point, all sections are connected.
-	}
 }

src/main/java/StevenDimDoors/experimental/PartitionNode.java

@@ -2,12 +2,11 @@ package StevenDimDoors.experimental;
 
 import StevenDimDoors.mod_pocketDim.Point3D;
 
-public class PartitionNode<T> extends BoundingBox
+public class PartitionNode extends BoundingBox
 {
 	private PartitionNode parent;
 	private PartitionNode leftChild = null;
 	private PartitionNode rightChild = null;
-	private T data = null;
 	
 	public PartitionNode(int width, int height, int length)
 	{
@@ -123,14 +122,4 @@ public class PartitionNode<T> extends BoundingBox
 			return this;
 		}
 	}
-	
-	public void setData(T value)
-	{
-		this.data = value;
-	}
-	
-	public T getData()
-	{
-		return data;
-	}
 }

src/main/java/StevenDimDoors/experimental/RoomData.java

@@ -1,133 +0,0 @@
-package StevenDimDoors.experimental;
-
-import java.util.ArrayList;
-
-public class RoomData
-{
-	/* Implementation Note:
-	 * Plans for links between rooms are stored in lists rather than a graph,
-	 * even though they duplicate some graph functionality, because there are
-	 * relatively few of them compared to the number of rooms. Moreover, some
-	 * links don't even have destinations because they're intended to lead to
-	 * other dungeons.
-	 */
-	
-	private int capacity;
-	private int distance;
-	private boolean decayed;
-	private PartitionNode partitionNode;
-	private ArrayList<LinkPlan> inboundLinks;
-	private ArrayList<LinkPlan> outboundLinks;
-	private DirectedGraph<RoomData, DoorwayData> layout;
-	private IGraphNode<RoomData, DoorwayData> layoutNode;
-	
-	public RoomData(PartitionNode partitionNode)
-	{
-		this.partitionNode = partitionNode;
-		this.inboundLinks = new ArrayList<LinkPlan>();
-		this.outboundLinks = new ArrayList<LinkPlan>();
-		this.layoutNode = null;
-		this.layout = null;
-		this.distance = -1;
-		this.capacity = -1;
-		this.decayed = false;
-		partitionNode.setData(this);
-	}
-	
-	public PartitionNode getPartitionNode()
-	{
-		return this.partitionNode;
-	}
-	
-	public IGraphNode<RoomData, DoorwayData> getLayoutNode()
-	{
-		return this.layoutNode;
-	}
-	
-	public void addToLayout(DirectedGraph<RoomData, DoorwayData> layout)
-	{
-		this.layout = layout;
-		this.layoutNode = layout.addNode(this);
-	}
-	
-	public boolean isDecayed()
-	{
-		return decayed;
-	}
-	
-	public void setDecayed(boolean value)
-	{
-		this.decayed = value;
-	}
-	
-	public ArrayList<LinkPlan> getInboundLinks()
-	{
-		return this.inboundLinks;
-	}
-	
-	public ArrayList<LinkPlan> getOutboundLinks()
-	{
-		return this.outboundLinks;
-	}
-	
-	public int getDistance()
-	{
-		return distance;
-	}
-	
-	public void setDistance(int value)
-	{
-		distance = value;
-	}
-	
-	public void remove()
-	{
-		// Remove the room from the partition tree and from the layout graph.
-		// Also remove any ancestors that become leaf nodes.
-		PartitionNode parent;
-		PartitionNode current = partitionNode;
-		while (current != null && current.isLeaf())
-		{
-			parent = current.parent();
-			current.remove();
-			current = parent;
-		}
-		
-		// Remove the room from the layout graph
-		layout.removeNode(layoutNode);
-		
-		// Remove any links
-		while (!inboundLinks.isEmpty())
-			inboundLinks.get(inboundLinks.size() - 1).remove();
-
-		while (!outboundLinks.isEmpty())
-			outboundLinks.get(outboundLinks.size() - 1).remove();
-		
-		// Wipe the room's data, as a precaution
-		layout = null;
-		partitionNode = null;
-		inboundLinks = null;
-		outboundLinks = null;
-	}
-
-	public int estimateDoorCapacity()
-	{
-		if (capacity >= 0)
-			return capacity;
-		
-		int cellsX = (partitionNode.width() - 3) / 2;
-		int cellsZ = (partitionNode.length() - 3) / 2;
-		capacity = Math.min(cellsX * cellsZ, 3);
-		return capacity;
-	}
-	
-	public int getRemainingDoorCapacity()
-	{
-		return (estimateDoorCapacity() - outboundLinks.size());
-	}
-	
-	public boolean isProtected()
-	{
-		return !inboundLinks.isEmpty() || !outboundLinks.isEmpty();
-	}
-}

src/main/java/StevenDimDoors/experimental/SectionData.java

@@ -1,192 +0,0 @@
-package StevenDimDoors.experimental;
-
-import java.util.ArrayList;
-import java.util.HashSet;
-import java.util.Random;
-import java.util.Stack;
-
-public class SectionData
-{
-	// Specifies the chance of selecting a destination from protectedRooms
-	// rather than from destinationRooms (which will then become protected)
-	private static final int PROTECTED_DESTINATION_CHANCE = 4;
-	private static final int MAX_PROTECTED_DESTINATION_CHANCE = 5;
-	
-	private int capacity;
-	private ArrayList<RoomData> sourceRooms;
-	private ArrayList<RoomData> protectedRooms;
-	private ArrayList<RoomData> destinationRooms;
-	private ArrayList<LinkPlan> reservations; 
-	
-	private SectionData(ArrayList<RoomData> sourceRooms, ArrayList<RoomData> destinationRooms, int capacity)
-	{
-		this.capacity = capacity;
-		this.sourceRooms = sourceRooms;
-		this.destinationRooms = destinationRooms;
-		this.protectedRooms = new ArrayList<RoomData>();
-		this.reservations = new ArrayList<LinkPlan>();
-	}
-	
-	public static SectionData createFromCore(IGraphNode<RoomData, DoorwayData> core)
-	{
-		int capacity = 0;
-		ArrayList<RoomData> sourceRooms = new ArrayList<RoomData>();
-		ArrayList<RoomData> destinationRooms = new ArrayList<RoomData>();
-		
-		boolean hasHoles;
-		RoomData currentRoom;
-		IGraphNode<RoomData, DoorwayData> current;
-		IGraphNode<RoomData, DoorwayData> neighbor;
-		Stack<IGraphNode<RoomData, DoorwayData>> ordering = new Stack<IGraphNode<RoomData, DoorwayData>>();
-		HashSet<IGraphNode<RoomData, DoorwayData>> visited = new HashSet<IGraphNode<RoomData, DoorwayData>>();
-		
-		visited.add(core);
-		ordering.add(core);
-		while (!ordering.isEmpty())
-		{
-			current = ordering.pop();
-			hasHoles = false;
-			
-			for (IEdge<RoomData, DoorwayData> edge : current.outbound())
-			{
-				neighbor = edge.tail();
-				if (visited.add(neighbor))
-				{
-					ordering.add(neighbor);
-				}
-			}
-			for (IEdge<RoomData, DoorwayData> edge : current.inbound())
-			{
-				neighbor = edge.head();
-				if (visited.add(neighbor))
-				{
-					ordering.add(neighbor);
-				}
-				if (edge.data().axis() == DoorwayData.Y_AXIS)
-				{
-					hasHoles = true;
-				}
-			}
-			
-			if (!hasHoles)
-			{
-				currentRoom = current.data();
-				destinationRooms.add(currentRoom);
-				if (currentRoom.estimateDoorCapacity() > 0)
-				{
-					capacity += currentRoom.estimateDoorCapacity();
-					sourceRooms.add(currentRoom);
-				}
-			}
-		}
-		return new SectionData(sourceRooms, destinationRooms, capacity);
-	}
-	
-	public int capacity()
-	{
-		return capacity;
-	}
-	
-	public void createEntranceLink(Random random)
-	{
-		int index = random.nextInt(sourceRooms.size());
-		RoomData room = sourceRooms.get(index);
-		LinkPlan.createEntranceLink(room);
-		if (room.getRemainingDoorCapacity() == 0)
-		{
-			sourceRooms.remove(index);
-		}
-		// It's okay to check containment in this list because
-		// the number of protected rooms is expected to be small
-		if (!protectedRooms.contains(room))
-		{
-			protectedRooms.add(room);
-		}
-		capacity--;
-	}
-
-	public void createDungeonLink(Random random)
-	{
-		int index = random.nextInt(sourceRooms.size());
-		RoomData room = sourceRooms.get(index);
-		LinkPlan.createDungeonLink(room);
-		if (room.getRemainingDoorCapacity() == 0)
-		{
-			sourceRooms.remove(index);
-		}
-		// It's okay to check containment in this list because
-		// the number of protected rooms is expected to be small
-		if (!protectedRooms.contains(room))
-		{
-			protectedRooms.add(room);
-		}
-		capacity--;
-	}
-
-	public void reserveSectionLink(SectionData destination, Random random)
-	{
-		// This method "reserves" a link by decrementing the capacity of this
-		// section and assigning a source room to the link. However, assigning
-		// its destination in a particular section is deferred. Why?
-		
-		// We favor using source rooms as destinations to cut down the number
-		// of rooms that have to be marked as protected against decay effects.
-		// We defer assigning a destination until after all source rooms are
-		// known so that we have that information available. Otherwise,
-		// destination selection would be biased toward non-source rooms and
-		// rooms with dungeon doors, which are placed before section links.
-		
-		int index = random.nextInt(sourceRooms.size());
-		RoomData room = sourceRooms.get(index);
-		destination.reserveDestination(LinkPlan.createInternalLink(room));
-		if (room.getRemainingDoorCapacity() == 0)
-		{
-			sourceRooms.remove(index);
-		}
-		// It's okay to check containment in this list because
-		// the number of protected rooms is expected to be small
-		if (!protectedRooms.contains(room))
-		{
-			protectedRooms.add(room);
-		}
-		capacity--;
-	}
-
-	public void processReservedLinks(Random random)
-	{
-		for (LinkPlan link : reservations)
-		{
-			link.setDestination( getLinkDestination(random) );
-		}
-		reservations.clear();
-	}
-	
-	private void reserveDestination(LinkPlan link)
-	{
-		reservations.add(link);
-	}
-	
-	private RoomData getLinkDestination(Random random)
-	{
-		RoomData destination;
-		
-		// Choose whether to select a room that is already protected or select
-		// from all possible destination rooms. Note that some destination rooms
-		// may also be protected rooms already.
-		if (random.nextInt(MAX_PROTECTED_DESTINATION_CHANCE) < PROTECTED_DESTINATION_CHANCE)
-		{
-			destination = protectedRooms.get( random.nextInt(protectedRooms.size()) );
-		}
-		else
-		{
-			destination = destinationRooms.get( random.nextInt(destinationRooms.size()) );
-			// It's okay to check containment in this list because
-			// the number of protected rooms is expected to be small
-			if (!protectedRooms.contains(destination))
-			{
-				protectedRooms.add(destination);
-			}
-		}
-		return destination;
-	}
-}

src/main/java/StevenDimDoors/experimental/decorators/BaseDecorator.java

@@ -1,17 +0,0 @@
-package StevenDimDoors.experimental.decorators;
-
-import java.util.Random;
-
-import net.minecraft.world.World;
-import StevenDimDoors.experimental.RoomData;
-import StevenDimDoors.mod_pocketDim.Point3D;
-import StevenDimDoors.mod_pocketDim.config.DDProperties;
-
-public abstract class BaseDecorator
-{
-	public BaseDecorator() { }
-	
-	public abstract boolean canDecorate(RoomData room);
-	
-	public abstract void decorate(RoomData room, World world, Point3D offset, Random random, DDProperties properties);
-}

src/main/java/StevenDimDoors/experimental/decorators/DecoratorFinder.java

@@ -1,51 +0,0 @@
-package StevenDimDoors.experimental.decorators;
-
-import java.util.ArrayList;
-import java.util.Random;
-
-import StevenDimDoors.experimental.RoomData;
-
-public class DecoratorFinder
-{
-	private static ArrayList<BaseDecorator> decorators = null;
-	
-	private DecoratorFinder() { }
-	
-	public static BaseDecorator find(RoomData room, Random random)
-	{
-		if (decorators == null)
-		{
-			load();
-		}
-		
-		// Since there are only a few decorators right now, we just iterate
-		// over the list and check them all. If we add a lot, we'll need to
-		// switch to a more efficient approach.
-		ArrayList<BaseDecorator> matches = new ArrayList<BaseDecorator>();
-		for (BaseDecorator decorator : decorators)
-		{
-			if (decorator.canDecorate(room))
-			{
-				matches.add(decorator);
-			}
-		}
-		
-		if (matches.isEmpty())
-		{
-			return null;
-		}
-		else
-		{
-			return matches.get( random.nextInt(matches.size()) );
-		}
-	}
-	
-	private static void load()
-	{
-		// List all the decorators we have
-		decorators = new ArrayList<BaseDecorator>();
-		decorators.add(new LinkDestinationDecorator());
-		decorators.add(new DefaultDoorDecorator());
-		decorators.add(new TorchDecorator());
-	}
-}

src/main/java/StevenDimDoors/experimental/decorators/DefaultDoorDecorator.java

@@ -1,49 +0,0 @@
-package StevenDimDoors.experimental.decorators;
-
-import java.util.Random;
-
-import net.minecraft.item.ItemDoor;
-import net.minecraft.world.World;
-import StevenDimDoors.experimental.LinkPlan;
-import StevenDimDoors.experimental.RoomData;
-import StevenDimDoors.mod_pocketDim.Point3D;
-import StevenDimDoors.mod_pocketDim.mod_pocketDim;
-import StevenDimDoors.mod_pocketDim.config.DDProperties;
-
-public class DefaultDoorDecorator extends BaseDecorator
-{	
-	@Override
-	public boolean canDecorate(RoomData room)
-	{
-		return !room.getOutboundLinks().isEmpty();
-	}
-
-	@Override
-	public void decorate(RoomData room, World world, Point3D offset, Random random, DDProperties properties)
-	{
-		// TODO: This is just an improvised implementation for testing
-		Point3D corner = room.getPartitionNode().minCorner().clone();
-		corner.add(offset);
-		
-		int count = 0;
-		Point3D source = null;
-		for (LinkPlan plan : room.getOutboundLinks())
-		{
-			source = new Point3D(corner.getX() + 2, corner.getY() + 2, corner.getZ() + count + 1);
-			ItemDoor.placeDoorBlock(world, source.getX(), source.getY() - 1, source.getZ(), 0, mod_pocketDim.dimensionalDoor);
-			plan.setSourcePoint(source);
-			count++;
-		}
-		
-		if (source == null)
-		{
-			throw new IllegalStateException("This should never happen because this decorator only applies if outbound links exist!");
-		}
-		for (LinkPlan plan : room.getInboundLinks())
-		{
-			plan.setDestinationPoint(source);
-		}
-		
-	}
-
-}

src/main/java/StevenDimDoors/experimental/decorators/LinkDestinationDecorator.java

@@ -1,37 +0,0 @@
-package StevenDimDoors.experimental.decorators;
-
-import java.util.Random;
-
-import net.minecraft.world.World;
-
-import StevenDimDoors.experimental.LinkPlan;
-import StevenDimDoors.experimental.PartitionNode;
-import StevenDimDoors.experimental.RoomData;
-import StevenDimDoors.mod_pocketDim.Point3D;
-import StevenDimDoors.mod_pocketDim.config.DDProperties;
-
-public class LinkDestinationDecorator extends BaseDecorator
-{
-	@Override
-	public boolean canDecorate(RoomData room)
-	{
-		return room.getOutboundLinks().isEmpty() && !room.getInboundLinks().isEmpty();
-	}
-
-	@Override
-	public void decorate(RoomData room, World world, Point3D offset, Random random, DDProperties properties)
-	{
-		// Set the center of the room as the destination for all inbound links
-		PartitionNode<RoomData> partition = room.getPartitionNode();
-		Point3D destination = partition.minCorner().clone();
-		destination.add(
-				offset.getX() + partition.width() / 2,
-				offset.getY() + 2,
-				offset.getZ() + partition.length() / 2);
-		
-		for (LinkPlan plan : room.getInboundLinks())
-		{
-			plan.setDestinationPoint(destination);
-		}
-	}
-}

src/main/java/StevenDimDoors/experimental/decorators/TorchDecorator.java

@@ -1,86 +0,0 @@
-package StevenDimDoors.experimental.decorators;
-
-import java.util.Random;
-
-import net.minecraft.block.Block;
-import net.minecraft.util.MathHelper;
-import net.minecraft.world.World;
-
-import StevenDimDoors.experimental.PartitionNode;
-import StevenDimDoors.experimental.RoomData;
-import StevenDimDoors.mod_pocketDim.Point3D;
-import StevenDimDoors.mod_pocketDim.config.DDProperties;
-
-public class TorchDecorator extends BaseDecorator
-{
-	@Override
-	public boolean canDecorate(RoomData room)
-	{
-		return !room.isProtected();
-	}
-
-	@Override
-	public void decorate(RoomData room, World world, Point3D offset, Random random, DDProperties properties)
-	{
-		// SenseiKiwi: Place a single random torch along the walls.
-		// We could do more complex arrangements but I feel that a single
-		// torches here and there will be a little unsettling.
-		// The walls might be broken by passages or decay, so this will
-		// require trial and error.
-		
-		final int MAX_ATTEMPTS = 5;
-		
-		int x;
-		int z;
-		int attempts = 0;
-		PartitionNode<RoomData> partition = room.getPartitionNode();
-		int minX = partition.minCorner().getX() + offset.getX();
-		int minZ = partition.minCorner().getZ() + offset.getZ();
-		int maxX = partition.maxCorner().getX() + offset.getX();
-		int maxZ = partition.maxCorner().getZ() + offset.getZ();
-		int torchLevel = partition.minCorner().getY() + offset.getY() + 2;
-		
-		for (; attempts < MAX_ATTEMPTS; attempts++)
-		{
-			// Choose a random side of the room to place the torch. The sides are numbered arbitrarily here.
-			// Then choose a random position along the wall and check if there is a block there to place the
-			// torch against. We assume that all blocks are bricks and thus valid.
-			switch (random.nextInt(4))
-			{
-				case 0: // Positive X side
-					z = MathHelper.getRandomIntegerInRange(random, minZ + 1, maxZ - 1);
-					if (!world.isAirBlock(maxX, torchLevel, z))
-					{
-						world.setBlock(maxX - 1, torchLevel, z, Block.torchWood.blockID, 2, 0);
-						return;
-					}
-					break;
-				case 1: // Negative X side
-					z = MathHelper.getRandomIntegerInRange(random, minZ + 1, maxZ - 1);
-					if (!world.isAirBlock(minX, torchLevel, z))
-					{
-						world.setBlock(minX + 1, torchLevel, z, Block.torchWood.blockID, 1, 0);
-						return;
-					}
-					break;
-				case 2: // Positive Z side
-					x = MathHelper.getRandomIntegerInRange(random, minX + 1, maxX - 1);
-					if (!world.isAirBlock(x, torchLevel, maxZ))
-					{
-						world.setBlock(x, torchLevel, maxZ - 1, Block.torchWood.blockID, 4, 0);
-						return;
-					}
-					break;
-				case 3: // Negative Z side
-					x = MathHelper.getRandomIntegerInRange(random, minX + 1, maxX - 1);
-					if (!world.isAirBlock(x, torchLevel, minZ))
-					{
-						world.setBlock(x, torchLevel, minZ + 1, Block.torchWood.blockID, 3, 0);
-						return;
-					}
-					break;
-			}
-		}
-	}
-
-}

src/main/java/StevenDimDoors/mod_pocketDim/CommonProxy.java

@@ -1,11 +1,14 @@
 package StevenDimDoors.mod_pocketDim;
 import java.io.File;
 import java.io.FileOutputStream;
+import StevenDimDoors.mod_pocketDim.blocks.BaseDimDoor;
+import StevenDimDoors.mod_pocketDim.tileentities.TileEntityDimDoor;
 
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.nbt.CompressedStreamTools;
 import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.tileentity.TileEntity;
 import net.minecraft.world.World;
 import cpw.mods.fml.common.FMLCommonHandler;
 import cpw.mods.fml.common.network.IGuiHandler;
@@ -130,6 +133,20 @@ public class CommonProxy implements IGuiHandler
     {
     	
     }
+	public void updateDoorTE(BaseDimDoor door, World world, int x, int y, int z)
+	{
+		TileEntity tile = world.getBlockTileEntity(x, y, z);
+		if (tile instanceof TileEntityDimDoor)
+		{
+			int metadata = world.getBlockMetadata(x, y, z);
+			TileEntityDimDoor dimTile = (TileEntityDimDoor) tile;
+			dimTile.openOrClosed = door.isDoorOnRift(world, x, y, z)&&door.isUpperDoorBlock(metadata);
+			dimTile.orientation = door.getFullMetadata(world, x, y, z) & 7;
+			dimTile.lockStatus = door.getLockStatus(world, x, y, z);
+		}
+	}
+    
+    
    
     
 }

src/main/java/StevenDimDoors/mod_pocketDim/ConnectionHandler.java

@@ -1,17 +1,11 @@
 package StevenDimDoors.mod_pocketDim;
 
-import java.io.ByteArrayOutputStream;
-import java.io.DataOutputStream;
-import java.io.IOException;
-
-import net.minecraft.entity.player.EntityPlayerMP;
 import net.minecraft.network.INetworkManager;
 import net.minecraft.network.NetLoginHandler;
 import net.minecraft.network.packet.NetHandler;
 import net.minecraft.network.packet.Packet1Login;
 import net.minecraft.network.packet.Packet250CustomPayload;
 import net.minecraft.server.MinecraftServer;
-import net.minecraft.server.integrated.IntegratedServer;
 import net.minecraftforge.common.DimensionManager;
 import net.minecraftforge.common.network.ForgePacket;
 import net.minecraftforge.common.network.packet.DimensionRegisterPacket;
@@ -65,7 +59,8 @@ public class ConnectionHandler implements IConnectionHandler
 	@Override
 	public void playerLoggedIn(Player player, NetHandler netHandler, INetworkManager manager)
 	{
-		PocketManager.getDimwatcher().onCreated(new ClientDimData(PocketManager.getDimensionData(0)));
+		// Hax... please don't do this! >_< 
+		PocketManager.getDimwatcher().onCreated(new ClientDimData(PocketManager.createDimensionDataDangerously(0)));
 		
 	}
 }

src/main/java/StevenDimDoors/mod_pocketDim/CraftingManager.java

@@ -1,15 +1,23 @@
 package StevenDimDoors.mod_pocketDim;
 
-import StevenDimDoors.mod_pocketDim.config.DDProperties;
+
 import net.minecraft.block.Block;
+import net.minecraft.block.BlockDispenser;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.inventory.IInventory;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
+import net.minecraftforge.oredict.ShapedOreRecipe;
+import StevenDimDoors.mod_pocketDim.config.DDProperties;
+import StevenDimDoors.mod_pocketDim.core.DDLock;
+import StevenDimDoors.mod_pocketDim.items.ItemDDKey;
+import StevenDimDoors.mod_pocketDim.items.behaviors.DispenserBehaviorStabilizedRS;
+import cpw.mods.fml.common.ICraftingHandler;
 import cpw.mods.fml.common.registry.GameRegistry;
-import static StevenDimDoors.mod_pocketDim.mod_pocketDim.*;
 
-public class CraftingManager
+public class CraftingManager implements ICraftingHandler
 {
-	private CraftingManager() { }
+	CraftingManager() { }
 	
 	public static void registerRecipes(DDProperties properties)
 	{
@@ -18,19 +26,19 @@ public class CraftingManager
 			switch (properties.WorldThreadRequirementLevel)
 			{
 				case 1:
-					GameRegistry.addShapelessRecipe(new ItemStack(itemStableFabric, 1),
+					GameRegistry.addShapelessRecipe(new ItemStack(mod_pocketDim.itemStableFabric, 1),
 						Item.enderPearl, mod_pocketDim.itemWorldThread);
 					break;
 				case 2:
-					GameRegistry.addRecipe(new ItemStack(itemStableFabric, 1),
+					GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemStableFabric, 1),
 						"yxy", 'x', Item.enderPearl, 'y', mod_pocketDim.itemWorldThread);
 					break;
 				case 3:
-					GameRegistry.addRecipe(new ItemStack(itemStableFabric, 1),
+					GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemStableFabric, 1),
 						" y ", "yxy", " y ", 'x', Item.enderPearl, 'y', mod_pocketDim.itemWorldThread);
 					break;
 				default:
-					GameRegistry.addRecipe(new ItemStack(itemStableFabric, 1),
+					GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemStableFabric, 1),
 						"yyy", "yxy", "yyy", 'x', Item.enderPearl, 'y', mod_pocketDim.itemWorldThread);
 					break;
 			}
@@ -38,54 +46,125 @@ public class CraftingManager
 		
 		if (properties.CraftingDimensionalDoorAllowed)
 		{
-			GameRegistry.addRecipe(new ItemStack(itemDimensionalDoor, 1),
+			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemDimensionalDoor, 1),
 				"yxy", 'x', mod_pocketDim.itemStableFabric, 'y', Item.doorIron);
 		}
 		if (properties.CraftingUnstableDoorAllowed)
 		{
-			GameRegistry.addRecipe(new ItemStack(itemUnstableDoor, 1),
+			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemUnstableDoor, 1),
 				"yxy", 'x', Item.eyeOfEnder, 'y', mod_pocketDim.itemDimensionalDoor);
 		}
 		if (properties.CraftingWarpDoorAllowed)
 		{
-			GameRegistry.addRecipe(new ItemStack(itemWarpDoor, 1),
-				"yxy", 'x', mod_pocketDim.itemStableFabric, 'y', Item.doorWood);
+
+			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemWarpDoor, 1),
+				"yxy", 'x', Item.enderPearl, 'y', Item.doorWood);
 		}
 		if (properties.CraftingTransTrapdoorAllowed)
 		{
-			GameRegistry.addRecipe(new ItemStack(transTrapdoor, 1),
-				"y", "x", "y", 'x', mod_pocketDim.itemStableFabric, 'y', Block.trapdoor);
+
+			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.transTrapdoor, 1),
+				"y", "x", "y", 'x', Item.enderPearl, 'y', Block.trapdoor);
 		}
 		if (properties.CraftingRiftSignatureAllowed)
 		{
-			GameRegistry.addRecipe(new ItemStack(itemRiftSignature, 1),
-				" y ", "yxy", " y ", 'x', mod_pocketDim.itemStableFabric, 'y', Item.ingotIron);
+
+			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemRiftSignature, 1),
+				" y ", "yxy", " y ", 'x', Item.enderPearl, 'y', Item.ingotIron);
 		}
 		if (properties.CraftingRiftRemoverAllowed)
 		{
-			GameRegistry.addRecipe(new ItemStack(itemRiftRemover, 1),
-				"yyy", "yxy", "yyy", 'x', mod_pocketDim.itemStableFabric, 'y', Item.ingotGold);
+
+			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemRiftRemover, 1),
+				"yyy", "yxy", "yyy", 'x', Item.enderPearl, 'y', Item.ingotGold);
 		}
 		if (properties.CraftingRiftBladeAllowed)
 		{
-			GameRegistry.addRecipe(new ItemStack(itemRiftBlade, 1),
+			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemRiftBlade, 1),
 				"x", "x", "y", 'x', mod_pocketDim.itemStableFabric, 'y', Item.blazeRod);
 		}
 		if (properties.CraftingStabilizedRiftSignatureAllowed)
 		{
-			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemStabilizedLinkSignature,1),
-				" y ", "yxy", " y ", 'x', mod_pocketDim.itemRiftSignature, 'y', mod_pocketDim.itemStableFabric);
+
+			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemStabilizedRiftSignature, 1),
+				" y ", "yxy", " y ", 'x', mod_pocketDim.itemStableFabric, 'y', Item.ingotIron);
 		}
 		if (properties.CraftingGoldenDimensionalDoorAllowed)
 		{
-			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemGoldenDimensionalDoor,1),
-				"yxy", 'x', mod_pocketDim.itemGoldenDoor, 'y', mod_pocketDim.itemStableFabric);
+			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemGoldenDimensionalDoor, 1),
+				"yxy", 'x', mod_pocketDim.itemStableFabric, 'y', mod_pocketDim.itemGoldenDoor);
 		}
 		if (properties.CraftingGoldenDoorAllowed)
 		{
 			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemGoldenDoor, 1),
 				"yy", "yy", "yy", 'y', Item.ingotGold);
 		}
+		if (properties.CraftingPersonalDimDoorAllowed)
+		{
+			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemPersonalDoor,1),
+				"yxy", 'y', mod_pocketDim.itemGoldenDoor, 'x', mod_pocketDim.itemStableFabric);
+		}
+		if (properties.CraftingQuartzDoorAllowed)
+		{
+			GameRegistry.addRecipe(new ShapedOreRecipe(mod_pocketDim.itemQuartzDoor, new Object[]{
+				"yy", "yy", "yy", Character.valueOf('y'), "oreQuartz"}));
+			
+			
+		}
+		if (properties.CraftingDDKeysAllowed)
+		{
+			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemDDKey, 1),
+				"  z", " y ", "y  ", 'y', Item.ingotGold, 'z', Item.enderPearl);
+			GameRegistry.addRecipe(new ItemStack(mod_pocketDim.itemDDKey, 1),
+					"z", "z", 'z', mod_pocketDim.itemDDKey);
 		}
 		
+	}
+
+	@Override
+	public void onCrafting(EntityPlayer player, ItemStack item, IInventory craftMatrix)
+	{
+		if(item.getItem() instanceof ItemDDKey)
+		{
+			ItemDDKey keyItem = (ItemDDKey) item.getItem();
+			ItemStack topKey = null;
+			ItemStack bottomKey = null;
+			int topKeySlot = 0;
+			
+			for(int i = 0; i<craftMatrix.getSizeInventory();i++)
+			{
+				ItemStack slot = craftMatrix.getStackInSlot(i);
+				if(slot!=null)
+				{
+					if(topKey==null)
+					{
+						topKey = slot;
+						topKeySlot = i;
+					}
+					else 
+					{
+						bottomKey = slot;
+						break;
+					}
+				}
+			}
+			DDLock.addKeys(bottomKey, DDLock.getKeys(topKey));
+			item.setTagCompound(bottomKey.getTagCompound());
+			player.inventory.addItemStackToInventory(topKey);
+		}
+		
+	}
+
+	@Override
+	public void onSmelting(EntityPlayer player, ItemStack item)
+	{
+		// TODO Auto-generated method stub
+		
+	}
+	
+	public static void registerDispenserBehaviors()
+	{
+		// Register the dispenser behaviors for certain DD items
+		BlockDispenser.dispenseBehaviorRegistry.putObject(mod_pocketDim.itemStabilizedRiftSignature, new DispenserBehaviorStabilizedRS());
+	}
 }

src/main/java/StevenDimDoors/mod_pocketDim/EventHookContainer.java

@@ -1,15 +1,14 @@
 package StevenDimDoors.mod_pocketDim;
 
-import net.minecraft.block.Block;
 import net.minecraft.client.audio.SoundManager;
 import net.minecraft.client.audio.SoundPoolEntry;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.item.Item;
-import net.minecraft.item.ItemDoor;
 import net.minecraft.item.ItemStack;
-import net.minecraft.util.ChunkCoordinates;
+import net.minecraft.util.DamageSource;
 import net.minecraft.world.World;
+import net.minecraft.world.WorldProvider;
+import net.minecraft.world.chunk.Chunk;
 import net.minecraftforge.client.event.sound.PlayBackgroundMusicEvent;
 import net.minecraftforge.client.event.sound.SoundLoadEvent;
 import net.minecraftforge.event.EventPriority;
@@ -19,12 +18,18 @@ import net.minecraftforge.event.entity.living.LivingFallEvent;
 import net.minecraftforge.event.entity.player.PlayerInteractEvent;
 import net.minecraftforge.event.entity.player.PlayerInteractEvent.Action;
 import net.minecraftforge.event.terraingen.InitMapGenEvent;
+import net.minecraftforge.event.world.ChunkEvent;
 import net.minecraftforge.event.world.WorldEvent;
-import StevenDimDoors.mod_pocketDim.blocks.BaseDimDoor;
 import StevenDimDoors.mod_pocketDim.config.DDProperties;
+import StevenDimDoors.mod_pocketDim.config.DDWorldProperties;
 import StevenDimDoors.mod_pocketDim.core.DDTeleporter;
+import StevenDimDoors.mod_pocketDim.core.DimLink;
+import StevenDimDoors.mod_pocketDim.core.DimensionType;
+import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 import StevenDimDoors.mod_pocketDim.items.BaseItemDoor;
+import StevenDimDoors.mod_pocketDim.items.ItemWarpDoor;
+import StevenDimDoors.mod_pocketDim.ticking.RiftRegenerator;
 import StevenDimDoors.mod_pocketDim.util.Point4D;
 import StevenDimDoors.mod_pocketDim.world.LimboProvider;
 import StevenDimDoors.mod_pocketDim.world.PocketProvider;
@@ -34,13 +39,26 @@ import cpw.mods.fml.relauncher.SideOnly;
 
 public class EventHookContainer
 {
+	private static final int MAX_FOOD_LEVEL = 20;
+	
 	private final DDProperties properties;
+	private DDWorldProperties worldProperties;
+	private RiftRegenerator regenerator;
 
 	public EventHookContainer(DDProperties properties)
 	{
 		this.properties = properties;
 	}
 	
+	public void setSessionFields(DDWorldProperties worldProperties, RiftRegenerator regenerator)
+	{
+		// SenseiKiwi:
+		// Why have a setter rather than accessing mod_pocketDim directly?
+		// I want to make this dependency explicit in our code.
+		this.worldProperties = worldProperties;
+		this.regenerator = regenerator;
+	}
+
 	@ForgeSubscribe(priority = EventPriority.LOW)
 	public void onInitMapGen(InitMapGenEvent event)
 	{
@@ -59,6 +77,10 @@ public class EventHookContainer
 	@ForgeSubscribe
 	public void onSoundLoad(SoundLoadEvent event)
 	{
+		event.manager.addSound(mod_pocketDim.modid + ":doorLockRemoved.ogg");
+		event.manager.addSound(mod_pocketDim.modid + ":doorLocked.ogg");
+		event.manager.addSound(mod_pocketDim.modid + ":keyLock.ogg");
+		event.manager.addSound(mod_pocketDim.modid + ":keyUnlock.ogg");
 		event.manager.addSound(mod_pocketDim.modid + ":monk.ogg");
 		event.manager.addSound(mod_pocketDim.modid + ":crack.ogg");
 		event.manager.addSound(mod_pocketDim.modid + ":tearing.ogg");
@@ -75,7 +97,6 @@ public class EventHookContainer
 	public void onSoundEffectResult(PlayBackgroundMusicEvent event)
 	{
 		if (FMLClientHandler.instance().getClient().thePlayer.worldObj.provider.dimensionId == mod_pocketDim.properties.LimboDimensionID)
-			;
 		{
 			this.playMusicForDim(FMLClientHandler.instance().getClient().thePlayer.worldObj);
 		}
@@ -85,21 +106,33 @@ public class EventHookContainer
 	public void onPlayerEvent(PlayerInteractEvent event)
 	{
 		// Handle all door placement here
-		if(event.action == Action.LEFT_CLICK_BLOCK)
+		if (event.action == Action.LEFT_CLICK_BLOCK)
 		{
 			return;
 		}
 		World world = event.entity.worldObj;
 		ItemStack stack = event.entityPlayer.inventory.getCurrentItem();
-		if (stack != null && stack.getItem() instanceof ItemDoor)
+		if (stack != null)
 		{
-			if (mod_pocketDim.itemDimensionalDoor.tryToPlaceDoor(stack, event.entityPlayer, world,
+			if(stack.getItem() instanceof ItemWarpDoor)
+			{
+				NewDimData data = PocketManager.getDimensionData(world);
+				
+				if(data.type() == DimensionType.PERSONAL)
+				{
+					mod_pocketDim.sendChat(event.entityPlayer,("Something prevents the Warp Door from tunneling out here"));
+					event.setCanceled(true);
+					return;
+				}
+			}
+			if (BaseItemDoor.tryToPlaceDoor(stack, event.entityPlayer, world,
 					event.x, event.y, event.z, event.face))
 			{
 				// Cancel the event so that we don't get two doors from vanilla doors
 				event.setCanceled(true);
 			}
 		}
+		
 	}
 
 	@ForgeSubscribe
@@ -137,7 +170,9 @@ public class EventHookContainer
 		Entity entity = event.entity;
 
 		if (properties.LimboEnabled && properties.LimboReturnsInventoryEnabled &&
-				entity instanceof EntityPlayer && entity.worldObj.provider instanceof PocketProvider)
+				entity instanceof EntityPlayer && isValidSourceForLimbo(entity.worldObj.provider))
+		{
+			if(entity.worldObj.provider instanceof PocketProvider)
 			{
 				EntityPlayer player = (EntityPlayer) entity;
 				mod_pocketDim.deathTracker.addUsername(player.username);
@@ -145,6 +180,15 @@ public class EventHookContainer
 				event.setCanceled(true);
 				return false;
 			}
+			else if(entity.worldObj.provider instanceof LimboProvider && event.source == DamageSource.outOfWorld)
+			{
+				EntityPlayer player = (EntityPlayer) entity;
+				revivePlayerInLimbo(player);
+				mod_pocketDim.sendChat(player, "Search for the dark red pools which accumulate in the lower reaches of Limbo");
+				event.setCanceled(true);
+				return false;
+			}
+		}
 		return true;
 	}
 
@@ -159,7 +203,7 @@ public class EventHookContainer
 
 		Entity entity = event.entity;
 
-		if (entity instanceof EntityPlayer && entity.worldObj.provider instanceof PocketProvider)
+		if (entity instanceof EntityPlayer && isValidSourceForLimbo(entity.worldObj.provider))
 		{
 			EntityPlayer player = (EntityPlayer) entity;
 			mod_pocketDim.deathTracker.addUsername(player.username);
@@ -175,11 +219,23 @@ public class EventHookContainer
 		return true;
 	}
 	
+	private boolean isValidSourceForLimbo(WorldProvider provider)
+	{
+		// Returns whether a given world is a valid place for sending a player
+		// to Limbo. We can send someone to Limbo from a certain dimension if
+		// Universal Limbo is enabled and the source dimension is not Limbo, or
+		// if the source dimension is a pocket dimension.
+		
+		return (worldProperties.UniversalLimboEnabled && provider.dimensionId != properties.LimboDimensionID) ||
+				(provider instanceof PocketProvider);
+	}
+
 	private void revivePlayerInLimbo(EntityPlayer player)
 	{
 		player.extinguish();
 		player.clearActivePotions();
 		player.setHealth(player.getMaxHealth());
+		player.getFoodStats().addStats(MAX_FOOD_LEVEL, 0);
 		Point4D destination = LimboProvider.getLimboSkySpawn(player, properties);
 		DDTeleporter.teleportEntity(player, destination, false);
 	}
@@ -198,6 +254,25 @@ public class EventHookContainer
 		}
 	}
 	
+	@ForgeSubscribe
+	public void onChunkLoad(ChunkEvent.Load event)
+	{
+		// Schedule rift regeneration for any links located in this chunk.
+		// This event runs on both the client and server. Allow server only.
+		// Also, check that PocketManager is loaded, because onChunkLoad() can
+		// fire while chunks are being initialized in a new world, before
+		// onWorldLoad() fires.
+		Chunk chunk = event.getChunk();
+		if (!chunk.worldObj.isRemote && PocketManager.isLoaded())
+		{
+			NewDimData dimension = PocketManager.createDimensionData(chunk.worldObj);
+			for (DimLink link : dimension.getChunkLinks(chunk.xPosition, chunk.zPosition))
+			{
+				regenerator.scheduleSlowRegeneration(link);
+			}
+		}
+	}
+
 	public void playMusicForDim(World world)
 	{
 		if (world.isRemote)

src/main/java/StevenDimDoors/mod_pocketDim/IChunkLoader.java

@@ -4,5 +4,6 @@ import net.minecraftforge.common.ForgeChunkManager.Ticket;
 
 public interface IChunkLoader 
 {
-	public void forceChunkLoading(Ticket ticket,int x, int z);
+	public boolean isInitialized();
+	public void initialize(Ticket ticket);
 }

src/main/java/StevenDimDoors/mod_pocketDim/PacketConstants.java

@@ -12,5 +12,6 @@ public class PacketConstants
 	public static final byte CREATE_LINK_PACKET_ID = 4;
 	public static final byte DELETE_LINK_PACKET_ID = 5;
 	public static final byte CLIENT_LOGIN_DIM_REGISTER = 6;
+	public static final byte UPDATE_LINK_PACKET_ID = 7;
 
 }

src/main/java/StevenDimDoors/mod_pocketDim/Point3D.java

@@ -56,20 +56,6 @@ public class Point3D implements Serializable {
 		return this.z = z;
 	}
 	
-	public void add(int x, int y, int z)
-	{
-		this.x += x;
-		this.y += y;
-		this.z += z;
-	}
-
-	public void add(Point3D other)
-	{
-		this.x += other.x;
-		this.y += other.y;
-		this.z += other.z;
-	}
-	
 	@Override
 	public Point3D clone()
 	{

src/main/java/StevenDimDoors/mod_pocketDim/ServerPacketHandler.java

@@ -39,6 +39,13 @@ public class ServerPacketHandler implements IPacketHandler
 		{
 			sendDimPacket(PacketConstants.DELETE_DIM_PACKET_ID, message);
 		}
+
+		@Override
+		public void update(ClientDimData message)
+		{
+			// TODO Auto-generated method stub
+			
+		}	
 	}
 	
 	private static class LinkWatcher implements IUpdateWatcher<ClientLinkData>
@@ -54,6 +61,12 @@ public class ServerPacketHandler implements IPacketHandler
 		{
 			sendLinkPacket(PacketConstants.DELETE_LINK_PACKET_ID, message);
 		}
+
+		@Override
+		public void update(ClientLinkData message)
+		{
+			sendLinkPacket(PacketConstants.UPDATE_LINK_PACKET_ID, message);
+		}
 	}
 	
 	public static Packet250CustomPayload createLinkPacket(ClientLinkData data)

src/main/java/StevenDimDoors/mod_pocketDim/blocks/BaseDimDoor.java

@@ -1,7 +1,6 @@
 package StevenDimDoors.mod_pocketDim.blocks;
 
 import java.util.Random;
-
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockDoor;
 import net.minecraft.block.ITileEntityProvider;
@@ -11,7 +10,8 @@ import net.minecraft.client.renderer.texture.IconRegister;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.EntityLivingBase;
 import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.item.Item;
+import net.minecraft.item.ItemDoor;
+import net.minecraft.item.ItemStack;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.Icon;
 import net.minecraft.util.MathHelper;
@@ -22,7 +22,7 @@ import StevenDimDoors.mod_pocketDim.config.DDProperties;
 import StevenDimDoors.mod_pocketDim.core.DDTeleporter;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
-import StevenDimDoors.mod_pocketDim.schematic.BlockRotator;
+import StevenDimDoors.mod_pocketDim.items.ItemDDKey;
 import StevenDimDoors.mod_pocketDim.tileentities.TileEntityDimDoor;
 import cpw.mods.fml.relauncher.Side;
 import cpw.mods.fml.relauncher.SideOnly;
@@ -32,9 +32,9 @@ public abstract class BaseDimDoor extends BlockDoor implements IDimDoor, ITileEn
     protected final DDProperties properties;
 	
 	@SideOnly(Side.CLIENT)
-    private Icon[] upperTextures;
+    protected Icon[] upperTextures;
     @SideOnly(Side.CLIENT)
-    private Icon[] lowerTextures;
+    protected Icon[] lowerTextures;
 	
 	public BaseDimDoor(int blockID, Material material, DDProperties properties) 
 	{
@@ -74,6 +74,18 @@ public abstract class BaseDimDoor extends BlockDoor implements IDimDoor, ITileEn
 	@Override
 	public boolean onBlockActivated(World world, int x, int y, int z, EntityPlayer player, int side, float hitX, float hitY, float hitZ)
 	{
+		
+		ItemStack stack = player.inventory.getCurrentItem();
+		if (stack != null && stack.getItem() instanceof ItemDDKey)
+		{
+			return false;
+		}
+
+		if(!checkCanOpen(world, x, y, z, player))
+		{
+			return false;
+		}
+
 		final int MAGIC_CONSTANT = 1003;
 		
 		int metadata = this.getFullMetadata(world, x, y, z);
@@ -92,6 +104,7 @@ public abstract class BaseDimDoor extends BlockDoor implements IDimDoor, ITileEn
 		}
 
 		world.playAuxSFXAtEntity(player, MAGIC_CONSTANT, x, y, z, 0);
+	
 		return true;
 	}
 
@@ -159,28 +172,26 @@ public abstract class BaseDimDoor extends BlockDoor implements IDimDoor, ITileEn
                     reversed = !reversed;
                 }
             }
-
             if (isUpperDoorBlock(fullMetadata))
+            {
             	return this.upperTextures[reversed ? 1 : 0];
-            else
+            }
             return this.lowerTextures[reversed ? 1 : 0];
         }
-        else
-        {
         return this.lowerTextures[0];
     }
-    }
 
 	//Called to update the render information on the tile entity. Could probably implement a data watcher,
 	//but this works fine and is more versatile I think. 
 	public BaseDimDoor updateAttachedTile(World world, int x, int y, int z)
 	{
+		mod_pocketDim.proxy.updateDoorTE(this, world, x, y, z);
 		TileEntity tile = world.getBlockTileEntity(x, y, z);
 		if (tile instanceof TileEntityDimDoor)
 		{
 			int metadata = world.getBlockMetadata(x, y, z);
 			TileEntityDimDoor dimTile = (TileEntityDimDoor) tile;
-			dimTile.openOrClosed = this.isDoorOnRift(world, x, y, z)&&this.isUpperDoorBlock(metadata);
+			dimTile.openOrClosed = isDoorOnRift(world, x, y, z) && isUpperDoorBlock(metadata);
 			dimTile.orientation = this.getFullMetadata(world, x, y, z) & 7;
 		}
 		return this;
@@ -188,21 +199,34 @@ public abstract class BaseDimDoor extends BlockDoor implements IDimDoor, ITileEn
 	
 	public boolean isDoorOnRift(World world, int x, int y, int z)
 	{
-		if(this.isUpperDoorBlock( world.getBlockMetadata(x, y, z)))
+		return this.getLink(world, x, y, z) != null;
+	}
+	
+	public DimLink getLink(World world, int x, int y, int z)
 	{
-			if(PocketManager.getLink(x, y, z, world.provider.dimensionId) != null||PocketManager.getLink(x, y-1, z, world.provider.dimensionId) != null)
+		DimLink link= PocketManager.getLink(x, y, z, world.provider.dimensionId);
+		if(link!=null)
 		{
-				return true;
+			return link;
+		}
+		
+		if(isUpperDoorBlock( world.getBlockMetadata(x, y, z)))
+		{
+			link = PocketManager.getLink(x, y-1, z, world.provider.dimensionId);
+			if(link!=null)
+			{
+				return link;
 			}
 		}
 		else
 		{
-			if(PocketManager.getLink(x, y, z, world.provider.dimensionId) != null||PocketManager.getLink(x, y+1, z, world.provider.dimensionId) != null)
+			link = PocketManager.getLink(x, y+1, z, world.provider.dimensionId);
+			if(link != null)
 			{
-				return true;
+				return link;
 			}
 		}
-		return false;
+		return null;
 	}
 
 	/**
@@ -312,14 +336,14 @@ public abstract class BaseDimDoor extends BlockDoor implements IDimDoor, ITileEn
 	@Override
 	public void onNeighborBlockChange(World world, int x, int y, int z, int neighborID)
 	{
+		
 		int metadata = world.getBlockMetadata(x, y, z);
 		if (isUpperDoorBlock(metadata))
 		{
 			if (world.getBlockId(x, y - 1, z) != this.blockID)
 			{
-				world.setBlock(x, y, z, 0);
+				world.setBlockToAir(x, y, z);
 			}
-			
 			if (neighborID > 0 && neighborID != this.blockID)
 			{
 				this.onNeighborBlockChange(world, x, y - 1, z, neighborID);
@@ -329,13 +353,13 @@ public abstract class BaseDimDoor extends BlockDoor implements IDimDoor, ITileEn
 		{
 			if (world.getBlockId(x, y + 1, z) != this.blockID)
 			{
-				world.setBlock(x, y, z, 0);
+				world.setBlockToAir(x, y, z);
 				if (!world.isRemote)
 				{
 					this.dropBlockAsItem(world, x, y, z, metadata, 0);
 				}
 			}
-			else
+			else if(this.getLockStatus(world, x, y, z)<=1)
 			{
 				boolean powered = world.isBlockIndirectlyGettingPowered(x, y, z) || world.isBlockIndirectlyGettingPowered(x, y + 1, z);
 				if ((powered || neighborID > 0 && Block.blocksList[neighborID].canProvidePower()) && neighborID != this.blockID)
@@ -351,31 +375,20 @@ public abstract class BaseDimDoor extends BlockDoor implements IDimDoor, ITileEn
 	 */
 	@Override
 	@SideOnly(Side.CLIENT)
-	public int idPicked(World par1World, int par2, int par3, int par4)
+	public int idPicked(World world, int x, int y, int z)
 	{
-		return this.getDrops();
+		return this.getDoorItem();
 	}
 
     /**
      * Returns the ID of the items to drop on destruction.
      */
+    @Override
 	public int idDropped(int metadata, Random random, int fortune)
     {
         return isUpperDoorBlock(metadata) ? 0 : this.getDrops();
     }
 
-	/**
-	 * Called when the block is attempted to be harvested
-	 */
-	@Override
-	public void onBlockHarvested(World par1World, int par2, int par3, int par4, int par5, EntityPlayer par6EntityPlayer)
-	{
-		if (par6EntityPlayer.capabilities.isCreativeMode && (par5 & 8) != 0 && par1World.getBlockId(par2, par3 - 1, par4) == this.blockID)
-		{
-			par1World.setBlock(par2, par3 - 1, par4, 0);
-		}
-	}
-
 	@Override
 	public TileEntity createNewTileEntity(World world)
 	{
@@ -429,16 +442,77 @@ public abstract class BaseDimDoor extends BlockDoor implements IDimDoor, ITileEn
 		}
 	}
 	
-	public static boolean isUpperDoorBlock(int metadata)
+	public boolean isUpperDoorBlock(int metadata)
 	{
 		return (metadata & 8) != 0;
 	}
 	
-	public static boolean isDoorOpen(int metadata)
+	public boolean isDoorOpen(int metadata)
 	{
 		return (metadata & 4) != 0;
 	}
 	
+	/**
+	 * 0 if link is no lock;
+	 * 1 if there is a lock;
+	 * 2 if the lock is locked.
+	 * @param world
+	 * @param x
+	 * @param y
+	 * @param z
+	 * @return
+	 */
+	public byte getLockStatus(World world, int x, int y, int z)
+	{
+		byte status = 0;
+		DimLink link = getLink(world, x, y, z);
+		if(link!=null&&link.hasLock())
+		{
+			status++;
+			if(link.getLockState())
+			{
+				status++;
+			}
+		}
+		return status;
+	}
+	
+	
+	public boolean checkCanOpen(World world, int x, int y, int z)
+	{
+		return this.checkCanOpen(world, x, y, z, null);
+	}
+	
+	public boolean checkCanOpen(World world, int x, int y, int z, EntityPlayer player)
+	{
+		DimLink link = getLink(world, x, y, z);
+		if(link==null||player==null)
+		{
+			return link==null;
+		}
+		if(!link.getLockState())
+		{
+			return true;
+		}
+		
+		for(ItemStack item : player.inventory.mainInventory)
+		{
+			if(item != null)
+			{
+				if(item.getItem() instanceof ItemDDKey)
+				{
+					if(link.tryToOpen(item))
+					{
+						return true;
+					}
+				}
+			}
+		}
+		player.playSound(mod_pocketDim.modid + ":doorLocked",  1F, 1F);
+		return false;
+	}
+
+	    
 	protected static boolean isEntityFacingDoor(int metadata, EntityLivingBase entity)
 	{
 		// Although any entity has the proper fields for this check,
@@ -455,4 +529,18 @@ public abstract class BaseDimDoor extends BlockDoor implements IDimDoor, ITileEn
 		world.setBlockTileEntity(x, y, z, te);
 		return te;
 	}
+	
+	@Override
+	public void breakBlock(World world, int x, int y, int z, int oldBlockID, int oldMeta)
+    {
+		// This function runs on the server side after a block is replaced
+		// We MUST call super.breakBlock() since it involves removing tile entities
+        super.breakBlock(world, x, y, z, oldBlockID, oldMeta);
+        
+        // Schedule rift regeneration for this block if it was replaced
+        if (world.getBlockId(x, y, z) != oldBlockID)
+        {
+        	mod_pocketDim.riftRegenerator.scheduleFastRegeneration(x, y, z, world);
+        }
+    }
 }

src/main/java/StevenDimDoors/mod_pocketDim/blocks/BlockDimWall.java

@@ -14,8 +14,10 @@ import net.minecraft.item.Item;
 import net.minecraft.item.ItemBlock;
 import net.minecraft.item.ItemStack;
 import net.minecraft.util.Icon;
+import net.minecraft.world.IBlockAccess;
 import net.minecraft.world.World;
 import StevenDimDoors.mod_pocketDim.mod_pocketDim;
+import StevenDimDoors.mod_pocketDimClient.PrivatePocketRender;
 import cpw.mods.fml.relauncher.Side;
 import cpw.mods.fml.relauncher.SideOnly;
 
@@ -23,7 +25,7 @@ public class BlockDimWall extends Block
 {
 	private static final float SUPER_HIGH_HARDNESS = 10000000000000F;
 	private static final float SUPER_EXPLOSION_RESISTANCE = 18000000F;
-	private Icon[] blockIcon = new Icon[2];
+	private Icon[] blockIcon = new Icon[3];
 	
 	public BlockDimWall(int blockID, int j, Material par2Material) 
 	{
@@ -34,7 +36,7 @@ public class BlockDimWall extends Block
 	@Override
 	public float getBlockHardness(World world, int x, int y, int z)
 	{
-		if (world.getBlockMetadata(x, y, z) == 0)
+		if (world.getBlockMetadata(x, y, z) != 1)
 		{
 			return this.blockHardness;
 		}
@@ -47,7 +49,7 @@ public class BlockDimWall extends Block
 	@Override
     public float getExplosionResistance(Entity entity, World world, int x, int y, int z, double explosionX, double explosionY, double explosionZ)
     {
-		if (world.getBlockMetadata(x, y, z) == 0)
+		if (world.getBlockMetadata(x, y, z) != 1)
 		{
 			return super.getExplosionResistance(entity, world, x, y, z, explosionX, explosionY, explosionZ);
 		}
@@ -57,25 +59,41 @@ public class BlockDimWall extends Block
 		}
     }
 	
+	public int getRenderType()
+    {
+        return PrivatePocketRender.renderID;
+    }
+	
 	@Override
 	public void registerIcons(IconRegister par1IconRegister)
     {
         this.blockIcon[0] = par1IconRegister.registerIcon(mod_pocketDim.modid + ":" + this.getUnlocalizedName());
         this.blockIcon[1] = par1IconRegister.registerIcon(mod_pocketDim.modid + ":" + this.getUnlocalizedName() + "Perm");
+        this.blockIcon[2] = par1IconRegister.registerIcon(mod_pocketDim.modid + ":" + this.getUnlocalizedName() + "Personal");
     }
 	
 	@SideOnly(Side.CLIENT)
 	@Override
 	public Icon getIcon(int par1, int par2)
 	{
-		return (par2 != 1) ? blockIcon[0] : blockIcon[1];
+		switch(par2)
+		{
+			case 0:
+				return blockIcon[0];
+			case 1:
+				return blockIcon[1];
+			case 2:
+				return blockIcon[2];
+			default:
+			return blockIcon[0];
+		}
 	}
 	
 	@Override
 	public int damageDropped(int metadata) 
 	{
 		//Return 0 to avoid dropping Ancient Fabric even if the player somehow manages to break it
-		return 0;
+		return metadata == 1 ? 0 : metadata;
 	}
 	
 	@Override
@@ -83,11 +101,12 @@ public class BlockDimWall extends Block
 	@SideOnly(Side.CLIENT)
 	public void getSubBlocks(int unknown, CreativeTabs tab, List subItems) 
 	{
-		for (int ix = 0; ix < 2; ix++) 
+		for (int ix = 0; ix < 3; ix++) 
 		{
 			subItems.add(new ItemStack(this, 1, ix));
 		}
 	}
+	
     @Override
 	public void onBlockDestroyedByPlayer(World par1World, int par2, int par3, int par4, int par5) {}
     
@@ -110,7 +129,7 @@ public class BlockDimWall extends Block
 	public boolean onBlockActivated(World world, int x, int y, int z, EntityPlayer entityPlayer, int par6, float par7, float par8, float par9)
     {
     	//Check if the metadata value is 0 -- we don't want the user to replace Ancient Fabric
-        if (entityPlayer.getCurrentEquippedItem() != null && world.getBlockMetadata(x, y, z) == 0)
+        if (entityPlayer.getCurrentEquippedItem() != null && world.getBlockMetadata(x, y, z) != 1)
         {
         	Item playerEquip = entityPlayer.getCurrentEquippedItem().getItem();
         	

src/main/java/StevenDimDoors/mod_pocketDim/blocks/BlockDoorGold.java

@@ -2,123 +2,34 @@ package StevenDimDoors.mod_pocketDim.blocks;
 
 import java.util.Random;
 
-import cpw.mods.fml.relauncher.Side;
-import cpw.mods.fml.relauncher.SideOnly;
-import StevenDimDoors.mod_pocketDim.mod_pocketDim;
-import StevenDimDoors.mod_pocketDim.config.DDProperties;
 import net.minecraft.block.BlockDoor;
 import net.minecraft.block.material.Material;
 import net.minecraft.client.renderer.IconFlipped;
 import net.minecraft.client.renderer.texture.IconRegister;
-import net.minecraft.item.Item;
 import net.minecraft.util.Icon;
 import net.minecraft.world.IBlockAccess;
+import net.minecraft.world.World;
+import StevenDimDoors.mod_pocketDim.mod_pocketDim;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 
 public class BlockDoorGold extends BlockDoor
 {
-	@SideOnly(Side.CLIENT)
-    private Icon[] upperTextures;
-    @SideOnly(Side.CLIENT)
-    private Icon[] lowerTextures;
-
 	public BlockDoorGold(int par1, Material par2Material)
 	{
 		super(par1, par2Material);
 	}
 
-	@Override
     @SideOnly(Side.CLIENT)
-	public void registerIcons(IconRegister iconRegister)
+    protected String getTextureName()
     {
-		upperTextures = new Icon[2];
-        lowerTextures = new Icon[2];
-        upperTextures[0] = iconRegister.registerIcon(mod_pocketDim.modid + ":" + this.getUnlocalizedName() + "_upper");
-        lowerTextures[0] = iconRegister.registerIcon(mod_pocketDim.modid + ":" + this.getUnlocalizedName() + "_lower");
-        upperTextures[1] = new IconFlipped(upperTextures[0], true, false);
-        lowerTextures[1] = new IconFlipped(lowerTextures[0], true, false);
+        return mod_pocketDim.modid + ":" + this.getUnlocalizedName();
     }
 	
+	
 	@Override
 	public int idDropped(int par1, Random par2Random, int par3)
     {
         return (par1 & 8) != 0 ? 0 : mod_pocketDim.itemGoldenDoor.itemID;
     }
-	  
-    /**
-     * From the specified side and block metadata retrieves the blocks texture. Args: side, metadata
-     */
-	@Override
-	@SideOnly(Side.CLIENT)
-	public Icon getIcon(int side, int metadata)
-    {
-        return this.upperTextures[0];
-    }
-	
-	/**
-     * Retrieves the block texture to use based on the display side. Args: iBlockAccess, x, y, z, side
-     */
-	@Override
-    @SideOnly(Side.CLIENT)
-    public Icon getBlockTexture(IBlockAccess blockAccess, int x, int y, int z, int side)
-    {
-        if (side != 1 && side != 0)
-        {
-            int fullMetadata = this.getFullMetadata(blockAccess, x, y, z);
-            int orientation = fullMetadata & 3;
-            boolean reversed = false;
-
-            if (BaseDimDoor.isDoorOpen(fullMetadata))
-            {
-                if (orientation == 0 && side == 2)
-                {
-                    reversed = !reversed;
-                }
-                else if (orientation == 1 && side == 5)
-                {
-                    reversed = !reversed;
-                }
-                else if (orientation == 2 && side == 3)
-                {
-                    reversed = !reversed;
-                }
-                else if (orientation == 3 && side == 4)
-                {
-                    reversed = !reversed;
-                }
-            }
-            else
-            {
-                if (orientation == 0 && side == 5)
-                {
-                    reversed = !reversed;
-                }
-                else if (orientation == 1 && side == 3)
-                {
-                    reversed = !reversed;
-                }
-                else if (orientation == 2 && side == 4)
-                {
-                    reversed = !reversed;
-                }
-                else if (orientation == 3 && side == 2)
-                {
-                    reversed = !reversed;
-                }
-
-                if ((fullMetadata & 16) != 0)
-                {
-                    reversed = !reversed;
-                }
-            }
-
-            if (BaseDimDoor.isUpperDoorBlock(fullMetadata))
-            	return this.upperTextures[reversed ? 1 : 0];
-            else
-            	return this.lowerTextures[reversed ? 1 : 0];
-        }
-        else
-        {
-            return this.lowerTextures[0];
-        }
-    }
 }

src/main/java/StevenDimDoors/mod_pocketDim/blocks/BlockDoorQuartz.java

@@ -0,0 +1,28 @@
+package StevenDimDoors.mod_pocketDim.blocks;
+
+import java.util.Random;
+import StevenDimDoors.mod_pocketDim.mod_pocketDim;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+import net.minecraft.block.BlockDoor;
+import net.minecraft.block.material.Material;
+
+public class BlockDoorQuartz extends BlockDoor
+{
+	public BlockDoorQuartz(int par1, Material par2Material)
+	{
+		super(par1, par2Material);
+	}
+	
+	@SideOnly(Side.CLIENT)
+    protected String getTextureName()
+    {
+        return mod_pocketDim.modid + ":" + this.getUnlocalizedName();
+    }
+	
+	@Override
+	public int idDropped(int par1, Random par2Random, int par3)
+    {
+        return (par1 & 8) != 0 ? 0 : mod_pocketDim.itemGoldenDoor.itemID;
+    }
+}

src/main/java/StevenDimDoors/mod_pocketDim/blocks/BlockGoldDimDoor.java

@@ -3,7 +3,7 @@ package StevenDimDoors.mod_pocketDim.blocks;
 import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.config.DDProperties;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 import StevenDimDoors.mod_pocketDim.tileentities.TileEntityDimDoorGold;
@@ -25,15 +25,21 @@ public class BlockGoldDimDoor extends BaseDimDoor
 	{
 		if (!world.isRemote && world.getBlockId(x, y - 1, z) == this.blockID)
 		{
-			NewDimData dimension = PocketManager.getDimensionData(world);
+			NewDimData dimension = PocketManager.createDimensionData(world);
 			DimLink link = dimension.getLink(x, y, z);
 			if (link == null)
 			{
-				dimension.createLink(x, y, z, LinkTypes.POCKET,world.getBlockMetadata(x, y - 1, z));
+				dimension.createLink(x, y, z, LinkType.POCKET,world.getBlockMetadata(x, y - 1, z));
 			}
 		}
 	}
 	
+	@Override
+	public int getDoorItem()
+	{
+		return mod_pocketDim.itemGoldenDimensionalDoor.itemID;
+	}
+	
 	@Override
 	public int getDrops()
 	{

src/main/java/StevenDimDoors/mod_pocketDim/blocks/BlockLimbo.java

@@ -9,7 +9,7 @@ import net.minecraft.util.Icon;
 import net.minecraft.world.IBlockAccess;
 import net.minecraft.world.World;
 import StevenDimDoors.mod_pocketDim.mod_pocketDim;
-import StevenDimDoors.mod_pocketDim.ticking.LimboDecay;
+import StevenDimDoors.mod_pocketDim.world.LimboDecay;
 import cpw.mods.fml.relauncher.Side;
 import cpw.mods.fml.relauncher.SideOnly;
 

src/main/java/StevenDimDoors/mod_pocketDim/blocks/BlockRift.java

@@ -47,14 +47,28 @@ public class BlockRift extends Block implements ITileEntityProvider
 	public static final int MAX_WORLD_THREAD_DROP_CHANCE = 1000;
 	
 	private final DDProperties properties;
-	private final ArrayList<Integer> blocksImmuneToRift;
+	private final ArrayList<Integer> blocksImmuneToRift;	// List of Vanilla blocks immune to rifts
+	private final ArrayList<Integer> modBlocksImmuneToRift; // List of DD blocks immune to rifts
 	
 	public BlockRift(int i, int j, Material par2Material, DDProperties properties) 
 	{
 		super(i, par2Material);
 		this.setTickRandomly(true);
 		this.properties = properties;
+		this.modBlocksImmuneToRift = new ArrayList<Integer>();
+		this.modBlocksImmuneToRift.add(properties.FabricBlockID);
+		this.modBlocksImmuneToRift.add(properties.PermaFabricBlockID);
+		this.modBlocksImmuneToRift.add(properties.DimensionalDoorID);
+		this.modBlocksImmuneToRift.add(properties.WarpDoorID);
+		this.modBlocksImmuneToRift.add(properties.TransTrapdoorID);
+		this.modBlocksImmuneToRift.add(properties.UnstableDoorID);
+		this.modBlocksImmuneToRift.add(properties.RiftBlockID);
+		this.modBlocksImmuneToRift.add(properties.TransientDoorID);
+		this.modBlocksImmuneToRift.add(properties.GoldenDimensionalDoorID);
+		this.modBlocksImmuneToRift.add(properties.GoldenDoorID);
+		
 		this.blocksImmuneToRift = new ArrayList<Integer>();
+		
 		this.blocksImmuneToRift.add(properties.FabricBlockID);
 		this.blocksImmuneToRift.add(properties.PermaFabricBlockID);
 		this.blocksImmuneToRift.add(properties.DimensionalDoorID);
@@ -65,7 +79,7 @@ public class BlockRift extends Block implements ITileEntityProvider
 		this.blocksImmuneToRift.add(properties.TransientDoorID);
 		this.blocksImmuneToRift.add(properties.GoldenDimensionalDoorID);
 		this.blocksImmuneToRift.add(properties.GoldenDoorID);
-
+		this.blocksImmuneToRift.add(properties.PersonalDimDoorID);
 		this.blocksImmuneToRift.add(Block.blockLapis.blockID);
 		this.blocksImmuneToRift.add(Block.blockIron.blockID);
 		this.blocksImmuneToRift.add(Block.blockGold.blockID);
@@ -85,9 +99,6 @@ public class BlockRift extends Block implements ITileEntityProvider
 		return false;
 	}
 
-	@Override
-	public void onBlockDestroyedByPlayer(World par1World, int par2, int par3, int par4, int par5) {}
-
 	@Override
 	public boolean isOpaqueCube()
 	{
@@ -113,10 +124,10 @@ public class BlockRift extends Block implements ITileEntityProvider
 		return true;
 	}
 	
-	//this doesnt do anything yet.
 	@Override
 	public int getRenderType()
 	{
+		// This doesn't do anything yet
 		if (mod_pocketDim.isPlayerWearingGoogles)
 		{
 			return 0;
@@ -220,7 +231,7 @@ public class BlockRift extends Block implements ITileEntityProvider
 		return targets;
 	}
 		
-	private void dropWorldThread(int blockID, World world, int x, int y, int z, Random random)
+	public void dropWorldThread(int blockID, World world, int x, int y, int z, Random random)
 	{
 		if (blockID != 0 && (random.nextInt(MAX_WORLD_THREAD_DROP_CHANCE) < properties.WorldThreadDropChance)
 				&& !(Block.blocksList[blockID] instanceof BlockFlowing ||
@@ -232,7 +243,7 @@ public class BlockRift extends Block implements ITileEntityProvider
 		}
 	}
 	
-	private void addAdjacentBlocks(int x, int y, int z, int distance, HashMap<Point3D, Integer> pointDistances, Queue<Point3D> points)
+	private static void addAdjacentBlocks(int x, int y, int z, int distance, HashMap<Point3D, Integer> pointDistances, Queue<Point3D> points)
 	{
 		Point3D[] neighbors = new Point3D[] {
 				new Point3D(x - 1, y, z),
@@ -252,16 +263,6 @@ public class BlockRift extends Block implements ITileEntityProvider
 		}
 	}
 	
-	public void regenerateRift(World world, int x, int y, int z, Random random)
-	{
-		if (!this.isBlockImmune(world, x, y, z) && world.getChunkProvider().chunkExists(x >> 4, z >> 4))
-		{
-			int blockID = world.getBlockId(x, y, z);
-			if (world.setBlock(x, y, z, properties.RiftBlockID))
-				dropWorldThread(blockID, world, x, y, z, random);
-		}
-	}
-	
 	public boolean spreadRift(NewDimData dimension, DimLink parent, World world, Random random)
 	{
 		int x, y, z, blockID;
@@ -413,6 +414,15 @@ public class BlockRift extends Block implements ITileEntityProvider
 		}
 	}
 	
+	public boolean tryPlacingRift(World world, int x, int y, int z)
+	{
+		if (world != null && !isBlockImmune(world, x, y, z))
+		{
+			return world.setBlock(x, y, z, mod_pocketDim.blockRift.blockID);
+		}
+		return false;
+	}
+
 	public boolean isBlockImmune(World world, int x, int y, int z)
 	{
 		Block block = Block.blocksList[world.getBlockId(x, y, z)];
@@ -424,7 +434,21 @@ public class BlockRift extends Block implements ITileEntityProvider
 			// is designed to receive an entity, the source of the blast. We have no entity so
 			// I've set this to access blockResistance directly. Might need changing later.
 			
-			return (block.blockResistance >= MIN_IMMUNE_RESISTANCE || blocksImmuneToRift.contains(block.blockID));
+			return (block.blockResistance >= MIN_IMMUNE_RESISTANCE ||
+					modBlocksImmuneToRift.contains(block.blockID) ||
+					blocksImmuneToRift.contains(block.blockID));
+		}
+		return false;
+	}
+	
+	public boolean isModBlockImmune(World world, int x, int y, int z)
+	{
+		// Check whether the block at the specified location is one of the
+		// rift-resistant blocks from DD.
+		Block block = Block.blocksList[world.getBlockId(x, y, z)];
+		if (block != null)
+		{
+			return modBlocksImmuneToRift.contains(block.blockID);
 		}
 		return false;
 	}
@@ -446,4 +470,18 @@ public class BlockRift extends Block implements ITileEntityProvider
 	{
 		return new TileEntityRift();
 	}
+	
+	@Override
+	public void breakBlock(World world, int x, int y, int z, int oldBlockID, int oldMeta)
+    {
+		// This function runs on the server side after a block is replaced
+		// We MUST call super.breakBlock() since it involves removing tile entities
+        super.breakBlock(world, x, y, z, oldBlockID, oldMeta);
+        
+        // Schedule rift regeneration for this block if it was changed
+        if (world.getBlockId(x, y, z) != oldBlockID)
+        {
+        	mod_pocketDim.riftRegenerator.scheduleSlowRegeneration(x, y, z, world);
+        }
+    }
 }

src/main/java/StevenDimDoors/mod_pocketDim/blocks/DimensionalDoor.java

@@ -3,16 +3,15 @@ package StevenDimDoors.mod_pocketDim.blocks;
 import net.minecraft.block.material.Material;
 import net.minecraft.item.Item;
 import net.minecraft.world.World;
+import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.config.DDProperties;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 
-@SuppressWarnings("deprecation")
 public class DimensionalDoor extends BaseDimDoor
 {
-
 	public DimensionalDoor(int blockID, Material material, DDProperties properties) 
 	{
 		super(blockID, material, properties);
@@ -23,14 +22,21 @@ public class DimensionalDoor extends BaseDimDoor
 	{
 		if (!world.isRemote && world.getBlockId(x, y - 1, z) == this.blockID)
 		{
-			NewDimData dimension = PocketManager.getDimensionData(world);
+			NewDimData dimension = PocketManager.createDimensionData(world);
 			DimLink link = dimension.getLink(x, y, z);
 			if (link == null)
 			{
-				dimension.createLink(x, y, z, LinkTypes.POCKET,world.getBlockMetadata(x, y - 1, z));
+				dimension.createLink(x, y, z, LinkType.POCKET,world.getBlockMetadata(x, y - 1, z));
 			}
 		}
 	}
+	
+	@Override
+	public int getDoorItem()
+	{
+		return mod_pocketDim.itemDimensionalDoor.itemID;
+	}
+	
 	@Override
 	public int getDrops()
 	{

src/main/java/StevenDimDoors/mod_pocketDim/blocks/IDimDoor.java

@@ -6,11 +6,39 @@ import net.minecraft.world.World;
 
 public interface IDimDoor
 {
+	/**
+	 * A function to enter a dim door and traverse its link, called when a player collides with an open door
+	 * @param world
+	 * @param x
+	 * @param y
+	 * @param z
+	 * @param entity
+	 */
 	public void enterDimDoor(World world, int x, int y, int z, Entity entity);
 	
+	/**
+	 * called when a door is placed to determine how it will place a link
+	 * @param world
+	 * @param x
+	 * @param y
+	 * @param z
+	 */
 	public void placeLink(World world, int x, int y, int z);
 	
 	public int getDrops();
 	
+	public int getDoorItem();
+	
 	public TileEntity initDoorTE(World world, int x, int y, int z);
+	
+	/**
+	 * checks if any of this doors blocks are overlapping with a rift
+	 * @param world
+	 * @param x
+	 * @param y
+	 * @param z
+	 * @return
+	 */
+	public boolean isDoorOnRift(World world, int x, int y, int z);
+	
 }

src/main/java/StevenDimDoors/mod_pocketDim/blocks/PersonalDimDoor.java

@@ -0,0 +1,47 @@
+package StevenDimDoors.mod_pocketDim.blocks;
+
+import net.minecraft.block.material.Material;
+import net.minecraft.world.World;
+import StevenDimDoors.mod_pocketDim.mod_pocketDim;
+import StevenDimDoors.mod_pocketDim.config.DDProperties;
+import StevenDimDoors.mod_pocketDim.core.DimLink;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
+import StevenDimDoors.mod_pocketDim.core.NewDimData;
+import StevenDimDoors.mod_pocketDim.core.PocketManager;
+
+public class PersonalDimDoor extends BaseDimDoor
+{
+
+	public PersonalDimDoor(int blockID, Material material, DDProperties properties)
+	{
+		super(blockID, material, properties);
+		// TODO Auto-generated constructor stub
+	}
+
+	@Override
+	public void placeLink(World world, int x, int y, int z)
+	{
+		if (!world.isRemote && world.getBlockId(x, y - 1, z) == this.blockID)
+		{
+			NewDimData dimension = PocketManager.getDimensionData(world);
+			DimLink link = dimension.getLink(x, y, z);
+			if (link == null)
+			{
+				dimension.createLink(x, y, z, LinkType.PERSONAL, world.getBlockMetadata(x, y - 1, z));
+			}
+		}
+	}
+
+	@Override
+	public int getDrops()
+	{
+		return mod_pocketDim.itemQuartzDoor.itemID;
+	}
+
+	@Override
+	public int getDoorItem()
+	{
+		return mod_pocketDim.itemPersonalDoor.itemID;
+	}
+
+}

src/main/java/StevenDimDoors/mod_pocketDim/blocks/TransTrapdoor.java

@@ -2,23 +2,28 @@ package StevenDimDoors.mod_pocketDim.blocks;
 
 import java.util.Random;
 
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockTrapDoor;
 import net.minecraft.block.ITileEntityProvider;
 import net.minecraft.block.material.Material;
 import net.minecraft.client.renderer.texture.IconRegister;
 import net.minecraft.entity.Entity;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemStack;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.world.World;
 import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.core.DDTeleporter;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
+import StevenDimDoors.mod_pocketDim.items.ItemDDKey;
 import StevenDimDoors.mod_pocketDim.tileentities.TileEntityTransTrapdoor;
 
-@SuppressWarnings("deprecation")
 public class TransTrapdoor extends BlockTrapDoor implements IDimDoor, ITileEntityProvider
 {
 
@@ -41,18 +46,66 @@ public class TransTrapdoor extends BlockTrapDoor implements IDimDoor, ITileEntit
 		enterDimDoor(world, x, y, z, entity);
 	}
 
+	public boolean checkCanOpen(World world, int x, int y, int z)
+	{
+		return this.checkCanOpen(world, x, y, z, null);
+	}
+	
+	public boolean checkCanOpen(World world, int x, int y, int z, EntityPlayer player)
+	{
+		DimLink link = PocketManager.getLink( x, y, z, world);
+		if(link==null||player==null)
+		{
+			return link==null;
+		}
+		if(!link.getLockState())
+		{
+			return true;
+		}
+		
+		for(ItemStack item : player.inventory.mainInventory)
+		{
+			if(item != null)
+			{
+				if(item.getItem() instanceof ItemDDKey)
+				{
+					if(link.tryToOpen(item))
+					{
+						return true;
+					}
+				}
+			}
+		}
+		return false;
+	}
+	
+	public boolean onBlockActivated(World par1World, int par2, int par3, int par4, EntityPlayer par5EntityPlayer, int par6, float par7, float par8, float par9)
+    {
+		if(this.checkCanOpen(par1World, par2, par3, par4, par5EntityPlayer))
+		{
+			return super.onBlockActivated(par1World, par2, par3, par4, par5EntityPlayer, par6, par7, par8, par9);
+		}
+		return false;
+    }
+
+    public void onPoweredBlockChange(World par1World, int par2, int par3, int par4, boolean par5)
+    {
+    	if(this.checkCanOpen(par1World, par2, par3, par4))
+    	{
+    		super.onPoweredBlockChange(par1World, par2, par3, par4, par5);
+    	}
+    }
 	@Override
 	public void enterDimDoor(World world, int x, int y, int z, Entity entity) 
 	{
 		if (!world.isRemote && isTrapdoorOpen(world.getBlockMetadata(x, y, z)))
 		{
-			this.onPoweredBlockChange(world, x, y, z, false);
-			
 			DimLink link = PocketManager.getLink(x, y, z, world);
 			if (link != null)
 			{
 				DDTeleporter.traverseDimDoor(world, link, entity,this);
 			}
+			super.onPoweredBlockChange(world, x, y, z, false);
 		}
 	}	
 
@@ -61,14 +114,6 @@ public class TransTrapdoor extends BlockTrapDoor implements IDimDoor, ITileEntit
 	{
 		this.placeLink(world, x, y, z);
 		world.setBlockTileEntity(x, y, z, this.createNewTileEntity(world));
-		this.updateAttachedTile(world, x, y, z);
-	}
-	
-	@Override
-	public void updateTick(World world, int x, int y, int z, Random random) 
-	{
-		TileEntityTransTrapdoor tile = (TileEntityTransTrapdoor) world.getBlockTileEntity(x, y, z);
-		tile.hasRift = PocketManager.getLink(x, y, z, world) != null;
 	}
 	
 	@Override
@@ -77,35 +122,37 @@ public class TransTrapdoor extends BlockTrapDoor implements IDimDoor, ITileEntit
 		return new TileEntityTransTrapdoor();
 	}
 	
-	public void updateAttachedTile(World world, int x, int y, int z)
-	{
-		TileEntity tile = world.getBlockTileEntity(x, y, z);
-		if (tile instanceof TileEntityTransTrapdoor)
-		{
-			TileEntityTransTrapdoor trapdoorTile = (TileEntityTransTrapdoor) tile;
-			trapdoorTile.hasRift = (PocketManager.getLink(x, y, z, world) != null);
-		}
-	}
-	
 	@Override
 	public void placeLink(World world, int x, int y, int z) 
 	{
 		if (!world.isRemote)
 		{
-			NewDimData dimension = PocketManager.getDimensionData(world);
+			NewDimData dimension = PocketManager.createDimensionData(world);
 			DimLink link = dimension.getLink(x, y, z);
 			if (link == null && dimension.isPocketDimension())
 			{
-				dimension.createLink(x, y, z, LinkTypes.UNSAFE_EXIT,0);
+				dimension.createLink(x, y, z, LinkType.UNSAFE_EXIT,0);
 			}
 		}
 	}
 	
+	@Override
+	@SideOnly(Side.CLIENT)
+	public int idPicked(World world, int x, int y, int z)
+	{
+		return this.getDoorItem();
+	}
 	
 	@Override
 	public int idDropped(int metadata, Random random, int fortuneLevel)
     {
-        return getDrops();
+        return this.getDrops();
+    }
+	
+	@Override
+	public int getDoorItem()
+	{
+		return mod_pocketDim.transTrapdoor.blockID;
 	}
 
 	@Override
@@ -126,4 +173,24 @@ public class TransTrapdoor extends BlockTrapDoor implements IDimDoor, ITileEntit
 		world.setBlockTileEntity(x, y, z, te);
 		return te;
 	}
+
+	@Override
+	public boolean isDoorOnRift(World world, int x, int y, int z)
+	{
+		return PocketManager.getLink(x, y, z, world)!=null;
+	}
+	
+	@Override
+	public void breakBlock(World world, int x, int y, int z, int oldBlockID, int oldMeta)
+    {
+		// This function runs on the server side after a block is replaced
+		// We MUST call super.breakBlock() since it involves removing tile entities
+        super.breakBlock(world, x, y, z, oldBlockID, oldMeta);
+        
+        // Schedule rift regeneration for this block if it was replaced
+        if (world.getBlockId(x, y, z) != oldBlockID)
+        {
+        	mod_pocketDim.riftRegenerator.scheduleFastRegeneration(x, y, z, world);
+        }
+    }
 }

src/main/java/StevenDimDoors/mod_pocketDim/blocks/TransientDoor.java

@@ -9,7 +9,7 @@ import net.minecraft.world.World;
 import StevenDimDoors.mod_pocketDim.config.DDProperties;
 import StevenDimDoors.mod_pocketDim.core.DDTeleporter;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 
@@ -64,15 +64,21 @@ public class TransientDoor extends BaseDimDoor
 	{
 		if (!world.isRemote && world.getBlockId(x, y - 1, z) == this.blockID)
 		{
-			NewDimData dimension = PocketManager.getDimensionData(world);
+			NewDimData dimension = PocketManager.createDimensionData(world);
 			DimLink link = dimension.getLink(x, y, z);
 			if (link == null && dimension.isPocketDimension())
 			{
-				dimension.createLink(x, y, z, LinkTypes.SAFE_EXIT,world.getBlockMetadata(x, y - 1, z));
+				dimension.createLink(x, y, z, LinkType.SAFE_EXIT,world.getBlockMetadata(x, y - 1, z));
 			}
 		}
 	}
 	
+	@Override
+	public int getDoorItem()
+	{
+		return 0;
+	}
+
 	@Override
 	public int getDrops()
 	{

src/main/java/StevenDimDoors/mod_pocketDim/blocks/UnstableDoor.java

@@ -3,8 +3,9 @@ package StevenDimDoors.mod_pocketDim.blocks;
 import net.minecraft.block.material.Material;
 import net.minecraft.item.Item;
 import net.minecraft.world.World;
+import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.config.DDProperties;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 
@@ -21,9 +22,16 @@ public class UnstableDoor extends BaseDimDoor
 		if (!world.isRemote && world.getBlockId(x, y - 1, z) == this.blockID)
 		{
 			NewDimData dimension = PocketManager.getDimensionData(world);
-			dimension.createLink(x, y, z, LinkTypes.RANDOM,world.getBlockMetadata(x, y - 1, z));
+			dimension.createLink(x, y, z, LinkType.RANDOM,world.getBlockMetadata(x, y - 1, z));
 		}
 	}
+	
+	@Override
+	public int getDoorItem()
+	{
+		return mod_pocketDim.itemUnstableDoor.itemID;
+	}
+	
 	@Override
 	public int getDrops()
 	{

src/main/java/StevenDimDoors/mod_pocketDim/blocks/WarpDoor.java

@@ -3,13 +3,13 @@ package StevenDimDoors.mod_pocketDim.blocks;
 import net.minecraft.block.material.Material;
 import net.minecraft.item.Item;
 import net.minecraft.world.World;
+import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.config.DDProperties;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 
-@SuppressWarnings("deprecation")
 public class WarpDoor extends BaseDimDoor
 {
 	public WarpDoor(int blockID, Material material, DDProperties properties) 
@@ -22,15 +22,21 @@ public class WarpDoor extends BaseDimDoor
 	{
 		if (!world.isRemote && world.getBlockId(x, y - 1, z) == this.blockID)
 		{
-			NewDimData dimension = PocketManager.getDimensionData(world);
+			NewDimData dimension = PocketManager.createDimensionData(world);
 			DimLink link = dimension.getLink(x, y, z);
 			if (link == null && dimension.isPocketDimension())
 			{
-				dimension.createLink(x, y, z, LinkTypes.SAFE_EXIT,world.getBlockMetadata(x, y - 1, z));
+				dimension.createLink(x, y, z, LinkType.SAFE_EXIT,world.getBlockMetadata(x, y - 1, z));
 			}
 		}
 	}
 	
+	@Override
+	public int getDoorItem()
+	{
+		return mod_pocketDim.itemWarpDoor.itemID;
+	}
+	
 	@Override
 	public int getDrops()
 	{

src/main/java/StevenDimDoors/mod_pocketDim/commands/CommandCreateDungeonRift.java

@@ -1,20 +1,18 @@
 package StevenDimDoors.mod_pocketDim.commands;
 
+import java.util.Collection;
+
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.util.MathHelper;
 import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 import StevenDimDoors.mod_pocketDim.dungeon.DungeonData;
 import StevenDimDoors.mod_pocketDim.helpers.DungeonHelper;
 import StevenDimDoors.mod_pocketDim.world.PocketBuilder;
 
-import java.util.Collection;
-
-import net.minecraft.command.ICommandSender;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.util.MathHelper;
-
 public class CommandCreateDungeonRift extends DDCommandBase
 {
 	private static CommandCreateDungeonRift instance = null;
@@ -38,10 +36,6 @@ public class CommandCreateDungeonRift extends DDCommandBase
 		NewDimData dimension;
 		DungeonHelper dungeonHelper = DungeonHelper.instance();
 
-		if (sender.worldObj.isRemote)
-		{
-			return DDCommandResult.SUCCESS;
-		}
 		if (command.length == 0)
 		{
 			return DDCommandResult.TOO_FEW_ARGUMENTS;
@@ -68,7 +62,8 @@ public class CommandCreateDungeonRift extends DDCommandBase
 		if (result != null)
 		{
 			dimension = PocketManager.getDimensionData(sender.worldObj);
-			link = dimension.createLink(x, y + 1, z, LinkTypes.DUNGEON, orientation);
+			link = dimension.createLink(x, y + 1, z, LinkType.DUNGEON, orientation);
+
 			if (PocketBuilder.generateSelectedDungeonPocket(link, mod_pocketDim.properties, result))
 			{
 				// Create a rift to our selected dungeon and notify the player

src/main/java/StevenDimDoors/mod_pocketDim/commands/CommandCreatePocket.java

@@ -1,6 +1,5 @@
 package StevenDimDoors.mod_pocketDim.commands;
 
-import net.minecraft.command.ICommandSender;
 import net.minecraft.entity.player.EntityPlayer;
 import StevenDimDoors.mod_pocketDim.helpers.DungeonHelper;
 
@@ -23,11 +22,6 @@ public class CommandCreatePocket extends DDCommandBase
 
 	@Override
 	protected DDCommandResult processCommand(EntityPlayer sender, String[] command)
-	{
-		//TODO: Some commands have isRemote checks, some do not. Why? Can commands even run locally anyway?
-		//What does it mean when you run a command locally? ~SenseiKiwi
-		
-		if (!sender.worldObj.isRemote)
 	{
 		if (command.length > 0)
 		{
@@ -42,8 +36,8 @@ public class CommandCreatePocket extends DDCommandBase
 		DungeonHelper.instance().createCustomDungeonDoor(sender.worldObj, x, y, z);
 		
 		//Notify the player
-			sendChat(sender,("Created a door to a pocket dimension. Please build your dungeon there."));
-		}
+		sendChat(sender, "Created a door to a pocket dimension. Please build your dungeon there.");
+		
 		return DDCommandResult.SUCCESS;
 	}
 }

src/main/java/StevenDimDoors/mod_pocketDim/commands/CommandCreateRandomRift.java

@@ -8,7 +8,7 @@ import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.util.MathHelper;
 import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 import StevenDimDoors.mod_pocketDim.dungeon.DungeonData;
@@ -39,10 +39,6 @@ public class CommandCreateRandomRift extends DDCommandBase
 		NewDimData dimension;
 		DungeonHelper dungeonHelper = DungeonHelper.instance();
 		
-		if (sender.worldObj.isRemote)
-		{
-			return DDCommandResult.SUCCESS;
-		}
 		if (command.length > 1)
 		{
 			return DDCommandResult.TOO_MANY_ARGUMENTS;
@@ -58,7 +54,8 @@ public class CommandCreateRandomRift extends DDCommandBase
 		if (command.length == 0)
 		{
 			dimension = PocketManager.getDimensionData(sender.worldObj);
-			link = dimension.createLink(x, y + 1, z, LinkTypes.DUNGEON, orientation);
+			link = dimension.createLink(x, y + 1, z, LinkType.DUNGEON, orientation);
+
 			sender.worldObj.setBlock(x, y + 1, z,mod_pocketDim.blockRift.blockID, 0, 3);
 			sendChat(sender, "Created a rift to a random dungeon.");
 		}
@@ -74,7 +71,8 @@ public class CommandCreateRandomRift extends DDCommandBase
 			if (result != null)
 			{
 				dimension = PocketManager.getDimensionData(sender.worldObj);
-				link = dimension.createLink(x, y + 1, z, LinkTypes.DUNGEON, orientation);
+				link = dimension.createLink(x, y + 1, z, LinkType.DUNGEON, orientation);
+
 				if (PocketBuilder.generateSelectedDungeonPocket(link, mod_pocketDim.properties, result))
 				{
 					// Create a rift to our selected dungeon and notify the player
@@ -118,9 +116,6 @@ public class CommandCreateRandomRift extends DDCommandBase
 		{
 			return null;
 		}
-		else
-		{
 		return matches.get( random.nextInt(matches.size()) );
 	}
-	}
 }

src/main/java/StevenDimDoors/mod_pocketDim/commands/CommandDeleteAllLinks.java

@@ -1,69 +0,0 @@
-package StevenDimDoors.mod_pocketDim.commands;
-
-import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.NewDimData;
-import StevenDimDoors.mod_pocketDim.core.PocketManager;
-
-import java.util.ArrayList;
-
-import net.minecraft.command.ICommandSender;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraft.world.World;
-
-@SuppressWarnings("deprecation")
-public class CommandDeleteAllLinks extends DDCommandBase
-{
-	private static CommandDeleteAllLinks instance = null;
-
-	private CommandDeleteAllLinks()
-	{
-		super("dd-deletelinks", "???");
-	}
-
-	public static CommandDeleteAllLinks instance()
-	{
-		if (instance == null)
-			instance = new CommandDeleteAllLinks();
-
-		return instance;
-	}
-
-	@Override
-	protected DDCommandResult processCommand(EntityPlayer sender, String[] command)
-	{
-		int linksRemoved=0;
-		int targetDim;
-		boolean shouldGo= true;
-
-		if(command.length==1)
-		{
-			targetDim = parseInt(sender, command[0]);
-		}
-		else
-		{
-			targetDim=0;
-			shouldGo=false;
-			sendChat(sender, ("Error-Invalid argument, delete_all_links <targetDimID>"));
-		}
-
-		if(shouldGo)
-		{
-			
-				NewDimData dim = PocketManager.getDimensionData(targetDim);
-				ArrayList<DimLink> linksInDim = dim.getAllLinks();
-
-				for (DimLink link : linksInDim)
-				{
-					World targetWorld = PocketManager.loadDimension(targetDim);
-					targetWorld.setBlock(link.source().getX(), link.source().getY(), link.source().getZ(), 0);
-					dim.deleteLink(link);
-					//TODO Probably should check what the block is, but thats annoying so Ill do it later.
-
-					linksRemoved++;
-				}
-				sendChat(sender,("Removed " + linksRemoved + " links."));
-			
-		}
-		return DDCommandResult.SUCCESS; //TEMPORARY HACK
-	}
-}

src/main/java/StevenDimDoors/mod_pocketDim/commands/CommandDeleteRifts.java

@@ -2,22 +2,21 @@ package StevenDimDoors.mod_pocketDim.commands;
 
 import java.util.ArrayList;
 
-import net.minecraft.command.ICommandSender;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.world.World;
 import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
+import StevenDimDoors.mod_pocketDim.util.Point4D;
 
-@SuppressWarnings("deprecation")
 public class CommandDeleteRifts extends DDCommandBase
 {
 	private static CommandDeleteRifts instance = null;
 
 	private CommandDeleteRifts()
 	{
-		super("dd-???", "???");
+		super("dd-deleterifts", "[dimension number]");
 	}
 
 	public static CommandDeleteRifts instance()
@@ -31,47 +30,64 @@ public class CommandDeleteRifts extends DDCommandBase
 	@Override
 	protected DDCommandResult processCommand(EntityPlayer sender, String[] command)
 	{
-		int linksRemoved=0;
-		int targetDim;
-		boolean shouldGo= true;
+		int linksRemoved = 0;
+		int targetDimension;
 
-		if(command.length==1)
+		if (command.length > 1)
 		{
-			targetDim = parseInt(sender, command[0]);
+			return DDCommandResult.TOO_MANY_ARGUMENTS;
+		}
+		if (command.length == 0)
+		{
+			targetDimension = sender.worldObj.provider.dimensionId;
 		}
 		else
 		{
-			targetDim=0;
-			shouldGo=false;
-			sendChat(sender,("Error-Invalid argument, delete_all_links <targetDimID>"));
+			try
+			{
+				targetDimension = Integer.parseInt(command[0]);
+			}
+			catch (NumberFormatException e) 
+			{
+				return DDCommandResult.INVALID_DIMENSION_ID;
+			}
 		}
 
-		if(shouldGo)
+		World world = PocketManager.loadDimension(targetDimension);
+		if (world == null)
 		{
+			return DDCommandResult.UNREGISTERED_DIMENSION;
+		}
 		
-				NewDimData dim = PocketManager.getDimensionData(targetDim);
-				ArrayList<DimLink> linksInDim = dim.getAllLinks();
-
-				for (DimLink link : linksInDim)
+		int x;
+		int y;
+		int z;
+		Point4D location;
+		NewDimData dimension = PocketManager.createDimensionData(world);
+		ArrayList<DimLink> links = dimension.getAllLinks();
+		for (DimLink link : links)
 		{
-					World targetWorld = PocketManager.loadDimension(targetDim);
-					
-					if(!mod_pocketDim.blockRift.isBlockImmune(sender.worldObj,link.source().getX(), link.source().getY(), link.source().getZ())||
-							(targetWorld.getBlockId(link.source().getX(), link.source().getY(), link.source().getZ())==mod_pocketDim.blockRift.blockID))
+			location = link.source();
+			x = location.getX();
+			y = location.getY();
+			z = location.getZ();
+			if (world.getBlockId(x, y, z) == mod_pocketDim.blockRift.blockID)
 			{
+				// Remove the rift and its link
+				world.setBlockToAir(x, y, z);
+				dimension.deleteLink(link);
 				linksRemoved++;
-						targetWorld.setBlock(link.source().getX(), link.source().getY(), link.source().getZ(), 0);
-						dim.deleteLink(link);
-					
-						
 			}
-					//TODO Probably should check what the block is, but thats annoying so Ill do it later.
-
-				
+			else if (!mod_pocketDim.blockRift.isBlockImmune(world, x, y, z))
+			{
+				// If a block is not immune, then it must not be a DD block.
+				// The link would regenerate into a rift eventually.
+				// We only need to remove the link.
+				dimension.deleteLink(link);
+				linksRemoved++;
 			}
-				sendChat(sender,("Removed " + linksRemoved + " links."));
-			
 		}
-		return DDCommandResult.SUCCESS; //TEMPORARY HACK
+		sendChat(sender, "Removed " + linksRemoved + " links.");
+		return DDCommandResult.SUCCESS;
 	}
 }

src/main/java/StevenDimDoors/mod_pocketDim/commands/CommandExportDungeon.java

@@ -2,7 +2,6 @@ package StevenDimDoors.mod_pocketDim.commands;
 
 import java.io.File;
 
-import net.minecraft.command.ICommandSender;
 import net.minecraft.entity.player.EntityPlayer;
 import StevenDimDoors.mod_pocketDim.config.DDProperties;
 import StevenDimDoors.mod_pocketDim.helpers.DungeonHelper;
@@ -60,25 +59,15 @@ public class CommandExportDungeon extends DDCommandBase
 					//Export the schematic
 					return exportDungeon(sender, command[0]);
 				}
-				else
-				{
 				//The schematic name contains illegal characters. Inform the user.
 				return new DDCommandResult("Error: Invalid schematic name. Please use only letters, numbers, dashes, and underscores.");
 			}
-			}
-			else
-			{
 			//The command is malformed in some way. Assume that the user meant to use
 			//the 3-argument version and report an error.
 			return DDCommandResult.TOO_FEW_ARGUMENTS;
 		}
-		}
 		
 		//The user must have used the 3-argument version of this command
-		//TODO: Why do we check remoteness here but not before? And why not for the other export case?
-		//Something feels wrong... ~SenseiKiwi
-		if (!sender.worldObj.isRemote)
-		{
 		//TODO: This validation should be in DungeonHelper or in another class. We should move it
 		//during the save file format rewrite. ~SenseiKiwi
 			
@@ -100,8 +89,7 @@ public class CommandExportDungeon extends DDCommandBase
 		{
 			return exportDungeon(sender, join(command, "_", 0, 3));
 		}
-			else
-			{
+		
 		//Validate the weight argument
 		try
 		{
@@ -112,16 +100,12 @@ public class CommandExportDungeon extends DDCommandBase
 			}
 		}
 		catch (Exception e) { }
-			}
 		
 		//If we've reached this point, then we must have an invalid weight.
 		return new DDCommandResult("Invalid dungeon weight. Please specify a weight between "
 				+ DungeonHelper.MIN_DUNGEON_WEIGHT + " and " + DungeonHelper.MAX_DUNGEON_WEIGHT + ", inclusive.");
 	}
 	
-		return DDCommandResult.SUCCESS;
-	}
-	
 	private static DDCommandResult exportDungeon(EntityPlayer player, String name)
 	{
 		DDProperties properties = DDProperties.instance();
@@ -137,11 +121,8 @@ public class CommandExportDungeon extends DDCommandBase
 			dungeonHelper.registerDungeon(exportPath, dungeonHelper.getDungeonPack("ruins"), false, true);
 			return DDCommandResult.SUCCESS;
 		}
-		else
-		{
 		return new DDCommandResult("Error: Failed to save dungeon schematic!");
 	}
-	}
 	
 	private static String join(String[] source, String delimiter, int start, int end)
 	{

src/main/java/StevenDimDoors/mod_pocketDim/commands/CommandListDungeons.java

@@ -31,10 +31,6 @@ public class CommandListDungeons extends DDCommandBase
 		int pageCount;
 		ArrayList<String> dungeonNames;
 
-		if (sender.worldObj.isRemote)
-		{
-			return DDCommandResult.SUCCESS;
-		}
 		if (command.length > 1)
 		{
 			return DDCommandResult.TOO_MANY_ARGUMENTS;

src/main/java/StevenDimDoors/mod_pocketDim/commands/CommandResetDungeons.java

@@ -1,16 +1,14 @@
 package StevenDimDoors.mod_pocketDim.commands;
 
 import java.util.ArrayList;
-
-import net.minecraft.command.ICommandSender;
+import java.util.HashSet;
 import net.minecraft.entity.player.EntityPlayer;
-import net.minecraftforge.common.DimensionManager;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.DimensionType;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 
-@SuppressWarnings("deprecation")
 public class CommandResetDungeons extends DDCommandBase
 {	
 	private static CommandResetDungeons instance = null;
@@ -31,61 +29,78 @@ public class CommandResetDungeons extends DDCommandBase
 	@Override
 	protected DDCommandResult processCommand(EntityPlayer sender, String[] command)
 	{
-		if(sender.worldObj.isRemote)
-		{
-			return DDCommandResult.SUCCESS; 
-		}
 		if (command.length > 0)
 		{
-			return DDCommandResult.TOO_FEW_ARGUMENTS;
+			return DDCommandResult.TOO_MANY_ARGUMENTS;
 		}
 
-		int dungeonCount = 0;
+		int id;
 		int resetCount = 0;
-		ArrayList<Integer> dimsToDelete = new ArrayList<Integer>();
-		ArrayList<Integer> dimsToFix = new ArrayList<Integer>();
+		int dungeonCount = 0;
+		HashSet<Integer> deletedDimensions = new HashSet<Integer>();
+		ArrayList<NewDimData> loadedDungeons = new ArrayList<NewDimData>();
 
-		for (NewDimData data : PocketManager.getDimensions())
+		// Copy the list of dimensions to iterate over the copy. Otherwise,
+		// we would trigger an exception by modifying the original list.
+		ArrayList<NewDimData> dimensions = new ArrayList<NewDimData>();
+		for (NewDimData dimension : PocketManager.getDimensions())
 		{
 
-			if(DimensionManager.getWorld(data.id())==null&&data.isDungeon())
+			dimensions.add(dimension);
+		}
+		
+		// Iterate over the list of dimensions. Check which ones are dungeons.
+		// If a dungeon is found, try to delete it. If it can't be deleted,
+		// then it must be loaded and needs to be updated to prevent bugs.
+		for (NewDimData dimension : dimensions)
+		{
+			if (dimension.type() == DimensionType.DUNGEON)
+			{
+				dungeonCount++;
+				id = dimension.id();
+				if (PocketManager.deletePocket(dimension, true))
 				{
 					resetCount++;
-				dungeonCount++;
-				dimsToDelete.add(data.id());
+					deletedDimensions.add(id);
 				}
-			else if(data.isDungeon())
+				else
 				{
-				dimsToFix.add(data.id());
-				dungeonCount++;
-				for(DimLink link : data.links())
-				{
-					if(link.linkType()==LinkTypes.REVERSE)
-					{
-						data.createLink(link.source(), LinkTypes.DUNGEON_EXIT, link.orientation());
+					loadedDungeons.add(dimension);
 				}
-					if(link.linkType()==LinkTypes.DUNGEON)
+			}
+
+		}
+		
+		// Modify the loaded dungeons to prevent bugs
+		for (NewDimData dungeon : loadedDungeons)
 		{
-						data.createLink(link.source(), LinkTypes.DUNGEON, link.orientation());
+			// Find top-most loaded dungeons and update their parents.
+			// They will automatically update their children.
+			// Dungeons with non-dungeon parents don't need to be fixed.
+			if (dungeon.parent() == null)
+			{
+				dungeon.setParentToRoot();
+			}
+			
+			// Links to any deleted dungeons must be replaced
+			for (DimLink link : dungeon.links())
+			{
+				if (link.hasDestination() && deletedDimensions.contains(link.destination().getDimension()))
+				{
+
+					if (link.linkType() == LinkType.DUNGEON)
+					{
+						dungeon.createLink(link.source(), LinkType.DUNGEON, link.orientation(), null);
+					}
+					else if (link.linkType() == LinkType.REVERSE)
+					{
+						dungeon.createLink(link.source(), LinkType.DUNGEON_EXIT, link.orientation(), null);
 					}
 				}
 			}
 		}
 		
-		for(Integer dimID:dimsToDelete)
-		{
-			PocketManager.deletePocket(PocketManager.getDimensionData(dimID), true);
-		}
-		/**
-		 * temporary workaround
-		 */
-		for(Integer dimID: dimsToFix)
-		{
-			PocketManager.getDimensionData(dimID).setParentToRoot();
-		}
-		//TODO- for some reason the parent field of loaded dimenions get reset to null if I call .setParentToRoot() before I delete the pockets. 
-		//TODO implement blackList
-		//Notify the user of the results
+		// Notify the user of the results
 		sendChat(sender,("Reset complete. " + resetCount + " out of " + dungeonCount + " dungeons were reset."));
 		return DDCommandResult.SUCCESS;
 	}

src/main/java/StevenDimDoors/mod_pocketDim/commands/CommandTeleportPlayer.java

@@ -1,23 +1,23 @@
 package StevenDimDoors.mod_pocketDim.commands;
 
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.world.World;
 import StevenDimDoors.mod_pocketDim.core.DDTeleporter;
+import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 import StevenDimDoors.mod_pocketDim.util.Point4D;
 
-import java.util.Arrays;
-import java.util.List;
-
-import net.minecraft.command.ICommandSender;
-import net.minecraft.entity.player.EntityPlayer;
-import net.minecraftforge.common.DimensionManager;
-
 public class CommandTeleportPlayer extends DDCommandBase
 {	
 	private static CommandTeleportPlayer instance = null;
 	
 	private CommandTeleportPlayer()
 	{
-		super("dd-tp", new String[] {"<Player Name> <Dimension ID> <X Coord> <Y Coord> <Z Coord>","<Player Name> <Dimension ID>"} );
+		super("dd-tp", new String[] {
+				"<player name> <dimension number>",
+				"<player name> <x> <y> <z>",
+				"<player name> <dimension number> <x> <y> <z>"} );
 	}
 	
 	public static CommandTeleportPlayer instance()
@@ -28,110 +28,119 @@ public class CommandTeleportPlayer extends DDCommandBase
 		return instance;
 	}
 	
-	/**
-	 * TODO- Change to accept variety of input, like just coords, just dim ID, or two player names. 
-	 */
 	@Override
 	protected DDCommandResult processCommand(EntityPlayer sender, String[] command) 
 	{
-		EntityPlayer targetPlayer = sender;
-		int dimDestinationID = sender.worldObj.provider.dimensionId;
+		int x;
+		int y;
+		int z;
+		World world;
+		int dimensionID;
+		Point4D destination;
+		NewDimData dimension;
+		boolean checkOrientation;
+		EntityPlayer targetPlayer;
 		
-		if(command.length == 5)
+		if (command.length < 2)
 		{
-			for(int i= 1; i <5;i++)
+			return DDCommandResult.TOO_FEW_ARGUMENTS;
+		}
+		if (command.length > 5)
 		{
-				if(!isInteger(command[i]))
+			return DDCommandResult.TOO_MANY_ARGUMENTS;
+		}
+		if (command.length == 3)
+		{
+			return DDCommandResult.INVALID_ARGUMENTS;
+		}
+		// Check that all arguments after the username are integers
+		for (int k = 1; k < command.length; k++)
+		{
+			if (!isInteger(command[k]))
 			{
 				return DDCommandResult.INVALID_ARGUMENTS;
 			}
 		}
-			if(sender.worldObj.getPlayerEntityByName(command[0])!=null) //Gets the targeted player
+		// Check if the target player is logged in
+		targetPlayer = MinecraftServer.getServer().getConfigurationManager().getPlayerForUsername(command[0]);
+		if (targetPlayer == null)
 		{
-				targetPlayer = sender.worldObj.getPlayerEntityByName(command[0]);
+			return DDCommandResult.PLAYER_OFFLINE;
+		}
+		// If a dimension ID was provided, try to load it
+		if (command.length != 4)
+		{
+			dimensionID = Integer.parseInt(command[1]);
+			world = PocketManager.loadDimension(dimensionID);
+			if (world == null)
+			{
+				return DDCommandResult.UNREGISTERED_DIMENSION;
+			}
 		}
 		else
 		{
-				return DDCommandResult.INVALID_ARGUMENTS;
-			}
-			dimDestinationID=Integer.parseInt(command[1]);//gets the target dim ID from the command string
-			
-			if(!DimensionManager.isDimensionRegistered(dimDestinationID))
-			{
-				return DDCommandResult.INVALID_DIMENSION_ID;
+			dimensionID = targetPlayer.worldObj.provider.dimensionId;
+			world = targetPlayer.worldObj;
 		}
 		
-			PocketManager.loadDimension(dimDestinationID);
-			Point4D destination = new Point4D(Integer.parseInt(command[2]),Integer.parseInt(command[3]),Integer.parseInt(command[4]),dimDestinationID);
-			DDTeleporter.teleportEntity(targetPlayer, destination, false);
-		}
-		else if(command.length == 2 && isInteger(command[1]))
+		// If we teleport to a pocket dimension, set checkOrientation to true
+		// so the player is placed correctly relative to the entrance door.
+		checkOrientation = false;
+		
+		// Parse or calculate the destination as necessary
+		// The Y coordinate must be increased by 1 because of the way that
+		// DDTeleporter considers destination points. It assumes that the
+		// point provided is the upper block of a door.
+		if (command.length == 2)
 		{
-			if(sender.worldObj.getPlayerEntityByName(command[0])!=null) //Gets the targeted player
+			// Check if the destination is a pocket dimension
+			dimension = PocketManager.createDimensionData(world);
+			if (dimension.isPocketDimension())
 			{
-				targetPlayer = sender.worldObj.getPlayerEntityByName(command[0]);
+				// The destination is a pocket dimension.
+				// Teleport the player to its original entrance (the origin).
+				destination = dimension.origin();
+				checkOrientation = true;
 			}
 			else
 			{
-				return DDCommandResult.INVALID_ARGUMENTS;
+				// The destination is not a pocket dimension, which means we
+				// don't automatically know a safe location where we can send
+				// the player. Send the player to (0, Y, 0), where Y is chosen
+				// by searching. Add 2 to place the player ABOVE the top block.
+				y = world.getTopSolidOrLiquidBlock(0, 0) + 2;
+				destination = new Point4D(0, y, 0, dimensionID);
 			}
-			dimDestinationID=Integer.parseInt(command[1]);//gets the target dim ID from the command string
-			
-			if(!DimensionManager.isDimensionRegistered(dimDestinationID))
+		}
+		else if (command.length == 4)
 		{
-				return DDCommandResult.INVALID_DIMENSION_ID;
-			}
-	
-		
-			Point4D destination = PocketManager.getDimensionData(dimDestinationID).origin();
-			if(!PocketManager.getDimensionData(dimDestinationID).isPocketDimension())
-			{
-				destination = new Point4D(destination.getX(),PocketManager.loadDimension(dimDestinationID).getTopSolidOrLiquidBlock(
-						destination.getX(), destination.getZ()),
-						destination.getZ(),destination.getDimension());
-			}
-			DDTeleporter.teleportEntity(targetPlayer, destination, false);
-		}
-		else if(command.length == 1 && isInteger(command[0]))
-		{
-			
-			targetPlayer = sender;
-			
-			dimDestinationID=Integer.parseInt(command[0]);//gets the target dim ID from the command string
-			
-			if(!DimensionManager.isDimensionRegistered(dimDestinationID))
-			{
-				return DDCommandResult.INVALID_DIMENSION_ID;
-			}
-	
-			
-			Point4D destination = PocketManager.getDimensionData(dimDestinationID).origin();
-			if(!PocketManager.getDimensionData(dimDestinationID).isPocketDimension())
-			{
-				destination = new Point4D(destination.getX(),PocketManager.loadDimension(dimDestinationID).getTopSolidOrLiquidBlock(
-						destination.getX(), destination.getZ()),
-						destination.getZ(),destination.getDimension());
-			}
-			DDTeleporter.teleportEntity(targetPlayer, destination, false);
+			x = Integer.parseInt(command[1]);
+			y = Integer.parseInt(command[2]) + 1; // Correct the Y value
+			z = Integer.parseInt(command[3]);
+			destination = new Point4D(x, y, z, dimensionID);
 		}
 		else
 		{
-			return DDCommandResult.INVALID_ARGUMENTS;
+			x = Integer.parseInt(command[2]);
+			y = Integer.parseInt(command[3]) + 1; // Correct the Y value
+			z = Integer.parseInt(command[4]);
+			destination = new Point4D(x, y, z, dimensionID);
 		}
+		// Teleport!
+		DDTeleporter.teleportEntity(targetPlayer, destination, checkOrientation);
 		return DDCommandResult.SUCCESS;
 	}
 	
-    public boolean isInteger( String input )  
+	private static boolean isInteger(String input)
 	{
 		try  
 		{  
-          Integer.parseInt( input );  
+			Integer.parseInt(input);  
 			return true;  
 		}  
-       catch(Exception e )  
+		catch(Exception e)
 		{  
 			return false;  
 		}  
 	}
-	
 }

src/main/java/StevenDimDoors/mod_pocketDim/commands/DDCommandBase.java

@@ -5,7 +5,6 @@ import net.minecraft.command.ICommand;
 import net.minecraft.command.ICommandSender;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.util.ChatMessageComponent;
-import cpw.mods.fml.common.event.FMLServerStartingEvent;
 
 /*
  * An abstract base class for our Dimensional Doors commands. This cleans up the code a little and provides
@@ -96,13 +95,15 @@ public abstract class DDCommandBase extends CommandBase
      * that Dryware and Technic Jenkins don't have those functions defined. How in the world?
      * I have no idea. But it's breaking our builds. -_-  ~SenseiKiwi
      */
-    public int compareTo(ICommand par1ICommand)
+    @Override
+	public int compareTo(ICommand command)
     {
-        return this.getCommandName().compareTo(par1ICommand.getCommandName());
+        return this.getCommandName().compareTo(command.getCommandName());
     }
 
-    public int compareTo(Object par1Obj)
+    @Override
+	public int compareTo(Object other)
     {
-        return this.compareTo((ICommand)par1Obj);
+        return this.compareTo((ICommand) other);
     }
 }

src/main/java/StevenDimDoors/mod_pocketDim/commands/DDCommandResult.java

@@ -8,7 +8,8 @@ public class DDCommandResult {
 	public static final DDCommandResult TOO_MANY_ARGUMENTS = new DDCommandResult(2, "Error: Too many arguments passed to the command", true);
 	public static final DDCommandResult INVALID_DIMENSION_ID = new DDCommandResult(3, "Error: Invalid dimension ID", true);
 	public static final DDCommandResult UNREGISTERED_DIMENSION = new DDCommandResult(4, "Error: Dimension is not registered", false);
-	public static final DDCommandResult INVALID_ARGUMENTS = new DDCommandResult(5, "Error: Invalid arguments passed to the command.", true);
+	public static final DDCommandResult INVALID_ARGUMENTS = new DDCommandResult(5, "Error: Invalid arguments passed to the command", true);
+	public static final DDCommandResult PLAYER_OFFLINE = new DDCommandResult(6, "Error: Player is not online", false);
 	
 	public static final int CUSTOM_ERROR_CODE = -1;
 	

src/main/java/StevenDimDoors/mod_pocketDim/config/DDProperties.java

@@ -23,6 +23,9 @@ public class DDProperties
 	public final int TransientDoorID;
 	public final int FabricBlockID;
 	public final int RiftBlockID;
+	public final int QuartzDoorID;
+	public final int PersonalDimDoorID;
+
 
 	/**
 	 * World Generation Block IDs
@@ -46,7 +49,9 @@ public class DDProperties
 	public final int UnstableDoorItemID;
 	public final int WarpDoorItemID;
 	public final int WorldThreadItemID;
-
+	public final int DDKeyItemID;
+	public final int ItemQuartzDoorID;
+	public final int ItemPersonalDimDoorID;
 
 	/**
 	 * Other IDs
@@ -57,6 +62,7 @@ public class DDProperties
 	public final int LimboDimensionID;
 	public final int LimboProviderID;
 	public final int PocketProviderID;
+	public final int PersonalPocketProviderID;
 	public final int DoorRenderEntityID;
 	public final int MonolithEntityID;
 
@@ -75,6 +81,9 @@ public class DDProperties
 	public final boolean CraftingStableFabricAllowed;
 	public final boolean CraftingGoldenDimensionalDoorAllowed;
 	public final boolean CraftingGoldenDoorAllowed;
+	public final boolean CraftingDDKeysAllowed;
+	public final boolean CraftingQuartzDoorAllowed;
+	public final boolean CraftingPersonalDimDoorAllowed;
 	
 	/**
 	 * Loot Flags
@@ -147,6 +156,9 @@ public class DDProperties
 		CraftingStableFabricAllowed = config.get(CATEGORY_CRAFTING, "Allow Crafting Stable Fabric", true).getBoolean(true);
 		CraftingGoldenDoorAllowed = config.get(CATEGORY_CRAFTING, "Allow Crafting Golden Door", true).getBoolean(true);
 		CraftingGoldenDimensionalDoorAllowed = config.get(CATEGORY_CRAFTING, "Allow Crafting Golden Dimensional Door", true).getBoolean(true);
+		CraftingDDKeysAllowed = config.get(CATEGORY_CRAFTING, "Allow Crafting Rift Keys", true).getBoolean(true);
+		CraftingQuartzDoorAllowed = config.get(CATEGORY_CRAFTING, "Allow Crafting Quartz Doors", true).getBoolean(true);
+		CraftingPersonalDimDoorAllowed = config.get(CATEGORY_CRAFTING, "Allow Crafting Personal Dim Doors", true).getBoolean(true);
 
 		WorldThreadRequirementLevel = config.get(CATEGORY_CRAFTING, "World Thread Requirement Level", 4,
 				"Controls the amount of World Thread needed to craft Stable Fabric. The number must be an " +
@@ -192,6 +204,8 @@ public class DDProperties
 		TransientDoorID = config.getBlock("Transient Door Block ID", 1979).getInt();
 		GoldenDoorID = config.getBlock("Gold Door Block ID", 1980).getInt();
 		GoldenDimensionalDoorID = config.getBlock("Gold Dim Door Block ID", 1981).getInt();
+		QuartzDoorID = config.getBlock("Quartz Door Block ID", 1982).getInt();
+		PersonalDimDoorID = config.getBlock("Personal Dim Door ID", 1983).getInt();
 		
 		WarpDoorItemID = config.getItem("Warp Door Item ID", 5670).getInt();
 		RiftRemoverItemID = config.getItem("Rift Remover Item ID", 5671).getInt();
@@ -204,6 +218,9 @@ public class DDProperties
 		GoldenDoorItemID = config.getItem("Gold Door Item ID", 5678).getInt();
 		GoldenDimensionalDoorItemID = config.getItem("Gold Dim Door Item ID", 5679).getInt();
 		WorldThreadItemID = config.getItem("World Thread Item ID", 5680).getInt();
+		DDKeyItemID = config.getItem("Rift Key Item ID", 5681).getInt();
+		ItemQuartzDoorID = config.getItem("Quartz Door Item ID", 5681).getInt();
+		ItemPersonalDimDoorID = config.getItem("Personal Dim Door ID", 5681).getInt();
 
 		LimboBlockID = config.getTerrainBlock("World Generation Block IDs - must be less than 256", "Limbo Block ID", 217,
 				"Blocks used for the terrain in Limbo").getInt();
@@ -213,6 +230,7 @@ public class DDProperties
 		LimboDimensionID = config.get(CATEGORY_DIMENSION, "Limbo Dimension ID", -23).getInt();
 		PocketProviderID = config.get(CATEGORY_PROVIDER, "Pocket Provider ID", 124).getInt();
 		LimboProviderID = config.get(CATEGORY_PROVIDER, "Limbo Provider ID", 113).getInt();
+		PersonalPocketProviderID = config.get(CATEGORY_PROVIDER, "Personal Pocket Provider ID", 125).getInt();
 		
 		MonolithTeleportationEnabled = config.get(Configuration.CATEGORY_GENERAL, "Enable Monolith Teleportation", true,
 				"Sets whether Monoliths can teleport players").getBoolean(true);

src/main/java/StevenDimDoors/mod_pocketDim/config/DDWorldProperties.java

@@ -9,7 +9,6 @@ public class DDWorldProperties
 	/**
 	 * World Generation Settings
 	 */
-
 	public final DimensionFilter RiftClusterDimensions;
 	public final DimensionFilter RiftGatewayDimensions;
 	
@@ -17,7 +16,7 @@ public class DDWorldProperties
 	 * General Flags
 	 */
 	public final boolean LimboEscapeEnabled;
-	
+	public final boolean UniversalLimboEnabled;
 	
 	//Names of categories
 	private static final String CATEGORY_WORLD_GENERATION = "world generation";
@@ -44,6 +43,12 @@ public class DDWorldProperties
 				"generates near the bottom of the dimension. If disabled, players could still leave through " +
 				"dungeons in Limbo or by dying (if Hardcore Limbo is disabled). The default value is true.").getBoolean(true);
 		
+		UniversalLimboEnabled = config.get(Configuration.CATEGORY_GENERAL, "Enable Universal Limbo", false,
+				"Sets whether players are teleported to Limbo when they die in any dimension (except Limbo). " +
+				"Normally, players only go to Limbo if they die in a pocket dimension. This setting will not " + 
+				"affect deaths in Limbo, which can be set with the Hardcore Limbo option. " +
+				"The default value is false.").getBoolean(false);
+		
 		config.save();
 	}
 	

src/main/java/StevenDimDoors/mod_pocketDim/core/DDLock.java

@@ -0,0 +1,169 @@
+package StevenDimDoors.mod_pocketDim.core;
+
+import java.io.IOException;
+import com.google.gson.stream.JsonReader;
+import StevenDimDoors.mod_pocketDim.items.ItemDDKey;
+import StevenDimDoors.mod_pocketDim.saving.IPackable;
+import StevenDimDoors.mod_pocketDim.saving.PackedDimData;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.nbt.NBTTagIntArray;
+import net.minecraft.nbt.NBTTagList;
+
+public class DDLock
+{
+	private boolean lockState;
+	private final int lockKey;
+	
+	
+	public DDLock(boolean isLocked, int lockKey)
+	{
+		this.lockState = isLocked;
+		this.lockKey = lockKey;
+	}
+	
+	public int getLockKey()
+	{
+		return this.lockKey;
+	}
+	/**
+	 * See if the lock is currently locked. False if there is no lock.
+	 * @return
+	 */
+	public boolean getLockState()
+	{
+		return this.lockState;
+	}
+	
+	/**
+	 * set the state of the lock. Returns false if there is no lock to set, 
+	 * otherwise returns true
+	 * @param flag
+	 */
+	protected void setLockState(boolean flag)
+	{
+		this.lockState = flag;
+	}
+	
+	
+	/**
+	 * see if we could unlock this door if it where locked.
+	 * @param link
+	 * @param itemStack
+	 * @return
+	 */
+	public boolean doesKeyUnlock(ItemStack itemStack)
+	{
+		for(int key :getKeys(itemStack))
+		{
+			if(this.lockKey == key)
+			{
+				return true;
+			}
+		}
+		return false;
+	}
+	
+	/**
+	 * Tries to open this lock
+	 * @param item
+	 * @return
+	 */
+	public boolean tryToOpen(ItemStack itemStack)
+	{
+		return (!this.lockState)||this.doesKeyUnlock(itemStack);
+	}
+	
+	/**
+	 * sets the key/s to the given key/s
+	 * @return 
+	 * @return
+	 */
+	
+	/**
+	 * gets all the keys stored on a single key item
+	 * @return
+	 */
+	public static int[] getKeys(ItemStack itemStack)
+	{
+		if (!itemStack.hasTagCompound())
+		{
+			initNBTTags(itemStack);
+		}
+		return itemStack.getTagCompound().getIntArray("DDKeys");
+	}
+	
+	/**
+	 * adds the key/s to the given key
+	 * @return 
+	 * @return
+	 */
+	public static void addKeys(ItemStack itemStack, int[] keysToAdd)
+	{
+		int[] oldKeys = DDLock.getKeys(itemStack);
+		int[] newKeys = new int[keysToAdd.length+oldKeys.length];
+		System.arraycopy(oldKeys, 0, newKeys, 0, oldKeys.length);
+		System.arraycopy(keysToAdd, 0, newKeys, oldKeys.length, keysToAdd.length);
+		setKeys(itemStack,newKeys);
+	}
+	
+	
+	/**
+	 * sets the key/s to the given key/s
+	 * @return 
+	 * @return
+	 */
+	public static void setKeys(ItemStack itemStack, int[] keys)
+	{
+		if (!itemStack.hasTagCompound())
+		{
+			initNBTTags(itemStack);
+		}
+		NBTTagCompound tag = itemStack.getTagCompound();
+		tag.setIntArray("DDKeys", keys);
+		itemStack.setTagCompound(tag);
+	}
+	
+	/**
+	 * Gives the key a new NBTTag
+	 * @param itemStack
+	 */
+	public static void initNBTTags(ItemStack itemStack)
+	{
+		itemStack.setTagCompound(new NBTTagCompound());
+		NBTTagCompound tag = itemStack.getTagCompound();
+		tag.setIntArray("DDKeys", new int[0]);
+		tag.setBoolean("HasCreatedLock", false);
+		itemStack.setTagCompound(tag);
+	}
+	
+	public static boolean hasCreatedLock(ItemStack key)
+	{
+		if(isItemKey(key))
+		{
+			if(key.hasTagCompound())
+			{
+				return key.getTagCompound().getBoolean("HasCreatedLock");
+			}
+			initNBTTags(key);
+		}
+		return false;
+	}
+	
+	public static boolean isItemKey(ItemStack key)
+	{
+		return key.getItem() instanceof ItemDDKey;
+	}
+	
+	
+
+	protected static DDLock generateLockKeyPair(ItemStack itemStack, int lockKey2)
+	{
+		itemStack.getTagCompound().setBoolean("HasCreatedLock", true);
+		DDLock.setKeys(itemStack, new int[]{lockKey2});
+		return new DDLock(true, lockKey2);
+		
+
+	}
+	
+}

src/main/java/StevenDimDoors/mod_pocketDim/core/DDTeleporter.java

@@ -2,7 +2,6 @@ package StevenDimDoors.mod_pocketDim.core;
 
 import java.util.ArrayList;
 import java.util.Random;
-
 import net.minecraft.block.Block;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.EntityList;
@@ -23,9 +22,9 @@ import net.minecraftforge.common.DimensionManager;
 import StevenDimDoors.mod_pocketDim.Point3D;
 import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.blocks.BaseDimDoor;
+import StevenDimDoors.mod_pocketDim.blocks.IDimDoor;
 import StevenDimDoors.mod_pocketDim.config.DDProperties;
 import StevenDimDoors.mod_pocketDim.helpers.yCoordHelper;
-import StevenDimDoors.mod_pocketDim.items.ItemDimensionalDoor;
 import StevenDimDoors.mod_pocketDim.schematic.BlockRotator;
 import StevenDimDoors.mod_pocketDim.tileentities.TileEntityDimDoor;
 import StevenDimDoors.mod_pocketDim.util.Point4D;
@@ -52,59 +51,49 @@ public class DDTeleporter
 	
 	private DDTeleporter() { }
 	
-	/**Checks if the destination supplied is valid, ie, filled by any non-replaceable block. 
-	 * 
-	 * @param entity
-	 * @param world
-	 * @param destination
-	 * @param properties
-	 * @return
+	/**
+	 * Checks if the destination supplied is safe (i.e. filled by any replaceable or non-opaque blocks)
 	 */
-	private static boolean checkDestination(Entity entity, WorldServer world, Point4D destination,DDProperties properties)
+	private static boolean checkDestination(WorldServer world, Point4D destination, int orientation)
 	{
 		int x = destination.getX();
 		int y = destination.getY();
 		int z = destination.getZ();
 		int blockIDTop;
 		int blockIDBottom;		
-		
 		Point3D point;
 		
-		int orientation;
-		
-		orientation = getDestinationOrientation(destination, properties);
-		entity.rotationYaw = (orientation * 90) + 90;
 		switch (orientation)
 		{
 			case 0:
-				point = new Point3D(MathHelper.floor_double(x - 0.5), y - 1, MathHelper.floor_double(z + 0.5));
+				point = new Point3D(x - 1, y - 1, z);
 				break;
 			case 1:
-				point = new Point3D(MathHelper.floor_double(x + 0.5), y - 1, MathHelper.floor_double(z - 0.5));
+				point = new Point3D(x, y - 1, z - 1);
 				break;
 			case 2:
-				point =  new Point3D(MathHelper.floor_double(x + 1.5), y - 1, MathHelper.floor_double(z + 0.5));
+				point =  new Point3D(x + 1, y - 1, z);
 				break;
 			case 3:
-				point =  new Point3D(MathHelper.floor_double(x + 0.5), y - 1, MathHelper.floor_double(z + 1.5));
+				point =  new Point3D(x, y - 1, z + 1);
 				break;
 			default:
 				point =  new Point3D(x, y - 1, z);
 				break;
 		}
 		blockIDBottom = world.getBlockId(point.getX(), point.getY(), point.getZ());
-		blockIDTop = world.getBlockId(point.getX(), point.getY()+1, point.getZ());
+		blockIDTop = world.getBlockId(point.getX(), point.getY() + 1, point.getZ());
 		
 		if (Block.blocksList[blockIDBottom] != null)
 		{
-			if(!Block.blocksList[blockIDBottom].isBlockReplaceable(world, point.getX(), point.getY(), point.getZ())&&world.isBlockOpaqueCube(point.getX(), point.getY(), point.getZ()))
+			if (!Block.blocksList[blockIDBottom].isBlockReplaceable(world, point.getX(), point.getY(), point.getZ()) && world.isBlockOpaqueCube(point.getX(), point.getY(), point.getZ()))
 			{
 				return false;
 			}
 		}
 		if (Block.blocksList[blockIDTop] != null)
 		{
-			if (!Block.blocksList[blockIDTop].isBlockReplaceable(world, point.getX(), point.getY()+1, point.getZ()))
+			if (!Block.blocksList[blockIDTop].isBlockReplaceable(world, point.getX(), point.getY() + 1, point.getZ()))
 			{
 				return false;
 			}
@@ -126,39 +115,15 @@ public class DDTeleporter
 		}
 		else
 		{
-			//Teleport the entity to the precise destination point
+			// Teleport the entity to the precise destination point
 			orientation = -1;
 		}
 		
-		if (!checkDestination(entity, world, destination, properties))
-		{
-            if (entity instanceof EntityPlayerMP)
+		if (entity instanceof EntityPlayer)
 		{
 			EntityPlayer player = (EntityPlayer) entity;
-            	player.rotationYaw = (orientation * 90) + 90;
-            	switch (orientation)
+			if (checkDestination(world, destination, orientation))
 			{
-    				case 0:
-    					player.setPositionAndUpdate(x + 0.5, y - 1, z + 0.5);
-    					break;
-    				case 1:
-    					player.setPositionAndUpdate(x + 0.5, y - 1, z + 0.5);
-    					break;
-    				case 2:
-    					player.setPositionAndUpdate(x + 0.5, y - 1, z + 0.5);
-    					break;
-    				case 3:
-    					player.setPositionAndUpdate(x + 0.5, y - 1, z + 0.5);
-    					break;
-    				default:
-    					player.setPositionAndUpdate(x, y - 1, z);	
-    					break;
-    			}
-            }
-		}
-		else if (entity instanceof EntityPlayer)
-		{
-			EntityPlayer player = (EntityPlayer) entity;
 				switch (orientation)
 				{
 					case 0:
@@ -178,6 +143,11 @@ public class DDTeleporter
 						break;
 				}
 			}
+			else
+			{
+				player.setPositionAndUpdate(x + 0.5, y - 1, z + 0.5);
+			}
+		}
 		else if (entity instanceof EntityMinecart)
 		{
 			entity.motionX = 0;
@@ -201,7 +171,7 @@ public class DDTeleporter
 					entity.worldObj.updateEntityWithOptionalForce(entity, false);
 					break;
 				case 3:
-					DDTeleporter.setEntityPosition(entity, x + 0.5, y, z + 1.5 );
+					DDTeleporter.setEntityPosition(entity, x + 0.5, y, z + 1.5);
 					entity.motionZ = 0.39;
 					entity.worldObj.updateEntityWithOptionalForce(entity, false);
 					break;
@@ -251,15 +221,14 @@ public class DDTeleporter
 		}
 		
 		//Check if the block below that point is actually a door
-		int blockID = world.getBlockId(door.getX(), door.getY() - 1, door.getZ());
-		if (blockID != properties.DimensionalDoorID && blockID != properties.WarpDoorID &&
-			blockID != properties.TransientDoorID && blockID != properties.UnstableDoorID
-			&& blockID != properties.GoldenDimensionalDoorID)
+		Block block = Block.blocksList[world.getBlockId(door.getX(), door.getY() - 1, door.getZ())];
+		if (block==null || !(block instanceof IDimDoor))
 		{
 			//Return the pocket's orientation instead
-			return PocketManager.getDimensionData(door.getDimension()).orientation();
+			return PocketManager.createDimensionData(world).orientation();
 		}
 		
+		
 		//Return the orientation portion of its metadata
 		return world.getBlockMetadata(door.getX(), door.getY() - 1, door.getZ()) & 3;
 	}
@@ -324,7 +293,7 @@ public class DDTeleporter
 				// to prevent us from doing bad things. Moreover, no dimension is being created, so if we ever
 				// tie code to that, it could cause confusing bugs.
 				// No hacky for you! ~SenseiKiwi
-				PocketManager.getDimwatcher().onCreated(new ClientDimData(PocketManager.getDimensionData(destination.getDimension())));
+				PocketManager.getDimwatcher().onCreated(new ClientDimData(PocketManager.createDimensionData(newWorld)));
 				  
 				// Set the new dimension and inform the client that it's moving to a new world.
 				player.dimension = destination.getDimension();
@@ -458,11 +427,11 @@ public class DDTeleporter
 			return;
 		}
 
-		if (!initializeDestination(link, DDProperties.instance(),door))
+		if (!initializeDestination(link, DDProperties.instance(),entity,door))
 		{
 			return;
 		}
-		if (link.linkType() == LinkTypes.RANDOM)
+		if (link.linkType() == LinkType.RANDOM)
 		{
 			Point4D randomDestination = getRandomDestination();
 			if (randomDestination != null)
@@ -474,18 +443,43 @@ public class DDTeleporter
 		else 
 		{
 			buildExitDoor(door, link, DDProperties.instance());
-			entity = teleportEntity(entity, link.destination(), link.linkType() != LinkTypes.UNSAFE_EXIT);
+			entity = teleportEntity(entity, link.destination(), link.linkType() != LinkType.UNSAFE_EXIT);
 			entity.worldObj.playSoundEffect(entity.posX, entity.posY, entity.posZ, "mob.endermen.portal", 1.0F, 1.0F);
 		}
 	}
 
-	private static boolean initializeDestination(DimLink link, DDProperties properties, Block door)
+	private static boolean initializeDestination(DimLink link, DDProperties properties, Entity entity, Block door)
 	{
-		if (link.hasDestination())
+		if (link.hasDestination()&&link.linkType()!=LinkType.PERSONAL)
 		{
-			if(PocketManager.isBlackListed(link.destination().getDimension()))
+			if (PocketManager.isBlackListed(link.destination().getDimension()))
 			{
-				link=PocketManager.getDimensionData(link.source().getDimension()).createLink(link.link.point,LinkTypes.SAFE_EXIT,link.link.orientation);
+
+				// This link leads to a dimension that has been blacklisted.
+				// That means that it was a pocket and it was deleted.
+				// Depending on the link type, we must overwrite it or cancel
+				// the teleport operation. We don't need to assign 'link' with
+				// a different value. NewDimData will overwrite it in-place.
+				NewDimData start = PocketManager.getDimensionData(link.source().getDimension());
+				if (link.linkType() == LinkType.DUNGEON)
+				{
+					// Ovewrite the link into a dungeon link with no destination
+					start.createLink(link.source(), LinkType.DUNGEON, link.orientation(), null);
+				}
+				else
+				{
+					if (start.isPocketDimension())
+					{
+						// Ovewrite the link into a safe exit link, because
+						// this could be the only way out from a pocket.
+						start.createLink(link.source(), LinkType.SAFE_EXIT, link.orientation(), null);
+					}
+					else
+					{
+						// Cancel the teleport attempt
+						return false;
+					}
+				}
 			}
 			else
 			{
@@ -496,25 +490,50 @@ public class DDTeleporter
 		// Check the destination type and respond accordingly
 		switch (link.linkType())
 		{
-			case LinkTypes.DUNGEON:
+			case DUNGEON:
 				return PocketBuilder.generateNewDungeonPocket(link, properties);
-			case LinkTypes.POCKET:
-				return PocketBuilder.generateNewPocket(link, properties,door);
-			case LinkTypes.SAFE_EXIT:
+			case POCKET:
+				return PocketBuilder.generateNewPocket(link, properties, door, DimensionType.POCKET);
+			case PERSONAL:
+				return setupPersonalLink(link, properties, entity, door);
+			case SAFE_EXIT:
 				return generateSafeExit(link, properties);
-			case LinkTypes.DUNGEON_EXIT:
+			case DUNGEON_EXIT:
 				return generateDungeonExit(link, properties);
-			case LinkTypes.UNSAFE_EXIT:
+			case UNSAFE_EXIT:
 				return generateUnsafeExit(link);
-			case LinkTypes.NORMAL:
-			case LinkTypes.REVERSE:
-			case LinkTypes.RANDOM:
+			case NORMAL:
+			case REVERSE:
+			case RANDOM:
 				return true;
 			default:
 				throw new IllegalArgumentException("link has an unrecognized link type.");
 		}
 	}
 	
+	private static boolean setupPersonalLink(DimLink link, DDProperties properties,Entity player, Block door)
+	{
+		if(!(player instanceof EntityPlayer))
+		{
+			return false;
+		}
+		
+		NewDimData dim = PocketManager.getPersonalDimensionForPlayer(player.getEntityName());
+		if(dim == null)
+		{
+			return PocketBuilder.generateNewPersonalPocket(link, properties, player, door);
+		}
+		
+		DimLink personalHomeLink = dim.getLink(dim.origin());
+		if(personalHomeLink!=null)
+		{
+			PocketManager.getDimensionData(link.source().getDimension()).setLinkDestination(personalHomeLink, link.source().getX(), link.source().getY(), link.source().getZ());
+		}
+		
+		dim.setLinkDestination(link, dim.origin.getX(), dim.origin.getY(), dim.origin.getZ());
+		return true;
+	}
+
 	private static Point4D getRandomDestination()
 	{
 		// Our aim is to return a random link's source point
@@ -532,7 +551,7 @@ public class DDTeleporter
 		{
 			for (DimLink link : dimension.getAllLinks())
 			{
-				if (link.linkType() != LinkTypes.RANDOM)
+				if (link.linkType() != LinkType.RANDOM)
 				{
 					matches.add(link.source());
 				}
@@ -544,11 +563,8 @@ public class DDTeleporter
 		{
 			return matches.get( random.nextInt(matches.size()) );
 		}
-		else
-		{
 		return null;
 	}
-	}
 	
 	private static boolean generateUnsafeExit(DimLink link)
 	{
@@ -561,7 +577,8 @@ public class DDTeleporter
 		// To avoid loops, don't generate a destination if the player is
 		// already in a non-pocket dimension.
 		
-		NewDimData current = PocketManager.getDimensionData(link.link.point.getDimension());
+		NewDimData current = PocketManager.getDimensionData(link.point.getDimension());
+
 		if (current.isPocketDimension())
 		{
 			Point4D source = link.source();
@@ -574,7 +591,7 @@ public class DDTeleporter
 			Point3D destination = yCoordHelper.findDropPoint(world, source.getX(), source.getY() + 1, source.getZ());
 			if (destination != null)
 			{
-				current.root().setDestination(link, destination.getX(), destination.getY(), destination.getZ());
+				current.root().setLinkDestination(link, destination.getX(), destination.getY(), destination.getZ());
 				return true;				
 			}
 		}
@@ -585,7 +602,7 @@ public class DDTeleporter
 	{
 		World startWorld = PocketManager.loadDimension(link.source().getDimension());
 		World destWorld = PocketManager.loadDimension(link.destination().getDimension());
-		TileEntity doorTE = startWorld.getBlockTileEntity(link.source().getX(), link.source().getY(), link.link.point.getZ());
+		TileEntity doorTE = startWorld.getBlockTileEntity(link.source().getX(), link.source().getY(), link.point.getZ());
 		if(doorTE instanceof TileEntityDimDoor)
 		{
 			if((TileEntityDimDoor.class.cast(doorTE).hasGennedPair))
@@ -615,9 +632,10 @@ public class DDTeleporter
 			}
 		}
 	}
+	
 	private static boolean generateSafeExit(DimLink link, DDProperties properties)
 	{
-		NewDimData current = PocketManager.getDimensionData(link.link.point.getDimension());
+		NewDimData current = PocketManager.getDimensionData(link.point.getDimension());
 		return generateSafeExit(current.root(), link, properties);
 	}
 	
@@ -628,7 +646,8 @@ public class DDTeleporter
 		// There is a chance of choosing the Nether first before other root dimensions
 		// to compensate for servers with many Mystcraft ages or other worlds.
 		
-		NewDimData current = PocketManager.getDimensionData(link.link.point.getDimension());
+		NewDimData current = PocketManager.getDimensionData(link.point.getDimension());
+
 		ArrayList<NewDimData> roots = PocketManager.getRootDimensions();
 		int shiftChance = START_ROOT_SHIFT_CHANCE + ROOT_SHIFT_CHANCE_PER_LEVEL * (current.packDepth() - 1);
 
@@ -636,11 +655,11 @@ public class DDTeleporter
 		{
 			if (current.root().id() != OVERWORLD_DIMENSION_ID && random.nextInt(MAX_OVERWORLD_EXIT_CHANCE) < OVERWORLD_EXIT_CHANCE)
 			{
-				return generateSafeExit(PocketManager.getDimensionData(OVERWORLD_DIMENSION_ID), link, properties);
+				return generateSafeExit(PocketManager.createDimensionDataDangerously(OVERWORLD_DIMENSION_ID), link, properties);
 			}
 			if (current.root().id() != NETHER_DIMENSION_ID && random.nextInt(MAX_NETHER_EXIT_CHANCE) < NETHER_EXIT_CHANCE)
 			{
-				return generateSafeExit(PocketManager.getDimensionData(NETHER_DIMENSION_ID), link, properties);
+				return generateSafeExit(PocketManager.createDimensionDataDangerously(NETHER_DIMENSION_ID), link, properties);
 			}
 			for (int attempts = 0; attempts < 10; attempts++)
 			{
@@ -744,16 +763,17 @@ public class DDTeleporter
 			// Create a reverse link for returning
 			int orientation = getDestinationOrientation(source, properties);
 			NewDimData sourceDim = PocketManager.getDimensionData(link.source().getDimension());
-			DimLink reverse = destinationDim.createLink(x, y + 2, z, LinkTypes.REVERSE,orientation);
-			sourceDim.setDestination(reverse, source.getX(), source.getY(), source.getZ());
+			DimLink reverse = destinationDim.createLink(x, y + 2, z, LinkType.REVERSE,orientation);
+
+			sourceDim.setLinkDestination(reverse, source.getX(), source.getY(), source.getZ());
 			
 			// Set up the warp door at the destination
 			orientation = BlockRotator.transformMetadata(orientation, 2, properties.WarpDoorID);
-			ItemDimensionalDoor.placeDoorBlock(world, x, y + 1, z, orientation, mod_pocketDim.warpDoor);
+			ItemDoor.placeDoorBlock(world, x, y + 1, z, orientation, mod_pocketDim.warpDoor);
 			
 			// Complete the link to the destination
 			// This comes last so the destination isn't set unless everything else works first
-			destinationDim.setDestination(link, x, y + 2, z);
+			destinationDim.setLinkDestination(link, x, y + 2, z);
 		}
 		
 		return (destination != null);

src/main/java/StevenDimDoors/mod_pocketDim/core/DimLink.java

@@ -2,73 +2,99 @@ package StevenDimDoors.mod_pocketDim.core;
 
 import java.util.LinkedList;
 import java.util.List;
-
+import net.minecraft.item.ItemStack;
+import net.minecraft.world.ChunkCoordIntPair;
 import StevenDimDoors.mod_pocketDim.util.Point4D;
-import StevenDimDoors.mod_pocketDim.watcher.ClientLinkData;
 
 public abstract class DimLink
 {	
-	protected ClientLinkData link;
+	protected Point4D point;
+	protected int orientation;
+	protected DDLock lock;
 	protected DimLink parent;
 	protected LinkTail tail;
 	protected List<DimLink> children;
 	
-	protected DimLink(ClientLinkData link, DimLink parent)
+	protected DimLink(Point4D point, int orientation, DDLock lock, DimLink parent)
 	{
 		
-		if (parent.link.point.getDimension() != link.point.getDimension())
+		if (parent.point.getDimension() != point.getDimension())
 		{
 			// Ban having children in other dimensions to avoid serialization issues with cross-dimensional tails
 			throw new IllegalArgumentException("source and parent.source must have the same dimension.");
 		}
+		this.lock = lock;
 		this.parent = parent;
-		this.link = link;
+		this.point = point;
 		this.tail = parent.tail;
+		this.orientation = orientation;
 		this.children = new LinkedList<DimLink>();
 		parent.children.add(this);
 	}
 	
-	protected DimLink(ClientLinkData link, int linkType)
+	protected DimLink(Point4D point, int orientation, DDLock lock, LinkType linkType)
 	{
+		/**This really cant happen anymore, I guess.
+		 * 
 		if ((linkType < LinkTypes.ENUM_MIN || linkType > LinkTypes.ENUM_MAX) && linkType != LinkTypes.CLIENT_SIDE)
 		{
 			throw new IllegalArgumentException("The specified link type is invalid.");
 		}
+		**/
 		
+		this.lock = lock;
 		this.parent = null;
-		this.link = link;
+		this.point = point;
+		this.orientation = orientation;
 		this.tail = new LinkTail(linkType, null);
 		this.children = new LinkedList<DimLink>();
 	}
 
 	public Point4D source()
 	{
-		return link.point;
+		return point;
+	}
+
+	public void clear()
+	{
+		//Release children
+		for (DimLink child : children)
+		{
+			 child.parent = null;
+		}
+		children.clear();
+		
+		//Release parent
+		if (parent != null)
+		{
+			parent.children.remove(this);
+		}
+		
+		parent = null;
+		point = null;
+		tail = new LinkTail(LinkType.NORMAL, null);
 	}
 	
 	public int orientation()
 	{
-		return link.orientation;
-	}
-
-	public ClientLinkData link()
-	{
-		return link;
+		return orientation;
 	}
 
 	public Point4D destination()
 	{
 		return tail.getDestination();
 	}
+	
 	public int getDestinationOrientation()
 	{
-		DimLink link = PocketManager.getLink(this.destination().getX(), this.destination().getY(), this.destination().getZ(), this.destination().getDimension());
-		if(link !=null)
+		DimLink destinationLink = PocketManager.getLink(tail.getDestination());
+		if (destinationLink != null)
 		{
-			return link.orientation();
+			return destinationLink.orientation();
 		}
-		return (this.orientation()+2)%4;
+		return (orientation + 2) % 4;
 	}
+	
 	public boolean hasDestination()
 	{
 		return (tail.getDestination() != null);
@@ -89,13 +115,65 @@ public abstract class DimLink
 		return parent;
 	}
 	
-	public int linkType()
+	public LinkType linkType()
 	{
 		return tail.getLinkType();
 	}
 	
+	
+	/**
+	 * Tries to open this lock. Returns true if the lock is open or if the key can open it
+	 * @return
+	 */
+	public boolean tryToOpen(ItemStack item)
+	{
+		return lock.tryToOpen(item);
+	}
+	
+	/**
+	 * Tests if the given key item fits this lock
+	 * @return
+	 */
+	public boolean doesKeyUnlock(ItemStack item)
+	{
+		return lock.doesKeyUnlock(item);
+	}
+
+	/**
+	 * test if there is a lock, regardless if it is locked or not.
+	 * @return
+	 */
+	public boolean hasLock()
+	{
+		return this.lock!=null;
+	}
+	
+	/**
+	 * Tests if the lock is open or not
+	 * 
+	 */
+	public boolean getLockState()
+	{
+		return this.hasLock()&&this.lock.getLockState();
+	}
+
+	/**
+	 * gets the actual lock object
+	 * @return
+	 */
+	public DDLock getLock()
+	{
+		return this.lock;
+	}
+	
+	public ChunkCoordIntPair getChunkCoordinates()
+	{
+		return new ChunkCoordIntPair(point.getX() >> 4, point.getZ() >> 4);
+	}
+
+	@Override
 	public String toString()
 	{
-		return link.point + " -> " + (hasDestination() ? destination() : "");
+		return point + " -> " + (hasDestination() ? destination() : "()");
 	}
 }

src/main/java/StevenDimDoors/mod_pocketDim/core/DimensionType.java

@@ -0,0 +1,41 @@
+package StevenDimDoors.mod_pocketDim.core;
+
+public enum DimensionType
+{
+	// WARNING: Don't modify these values carelessly or you'll risk breaking existing worlds!
+	ROOT(0,false),
+	POCKET(1,true),
+	DUNGEON(2,true),
+	PERSONAL(3,true);
+	
+	DimensionType(int index, boolean isPocket)
+	{
+		this.index = index;
+		this.isPocket = isPocket;
+	}
+	
+	public final int index;
+	public final boolean isPocket;
+	
+	/**
+	 * Get the DimensionType given an index. I feel like there should be a better way to do this. 
+	 * @param index
+	 * @return
+	 */
+	public static DimensionType getTypeFromIndex(int index)
+	{
+		for(DimensionType type : DimensionType.values())
+		{
+			if(type.index == index)
+			{
+				return type;
+			}
+		}
+		return null;
+	}
+	
+	public boolean isPocketDimension()
+	{
+		return this.isPocket;
+	}
+}

src/main/java/StevenDimDoors/mod_pocketDim/core/IDimRegistrationCallback.java

@@ -2,5 +2,5 @@ package StevenDimDoors.mod_pocketDim.core;
 
 public interface IDimRegistrationCallback
 {
-	public NewDimData registerDimension(int dimensionID, int rootID);
+	public NewDimData registerDimension(int dimensionID, int rootID, DimensionType type);
 }

src/main/java/StevenDimDoors/mod_pocketDim/core/LinkTail.java

@@ -5,9 +5,9 @@ import StevenDimDoors.mod_pocketDim.util.Point4D;
 class LinkTail
 {
 	private Point4D destination;
-	private int linkType;
+	private LinkType linkType;
 		
-	public LinkTail(int linkType, Point4D destination)
+	public LinkTail(LinkType linkType, Point4D destination)
 	{
 		this.linkType = linkType;
 		this.destination = destination;
@@ -21,12 +21,11 @@ class LinkTail
 		this.destination = destination;
 	}
 
-	public int getLinkType() {
+	public LinkType getLinkType() {
 		return linkType;
 	}
 
-	public void setLinkType(int linkType) {
+	public void setLinkType(LinkType linkType) {
 		this.linkType = linkType;
 	}
-
 }

src/main/java/StevenDimDoors/mod_pocketDim/core/LinkType.java

@@ -0,0 +1,42 @@
+package StevenDimDoors.mod_pocketDim.core;
+
+import java.util.HashMap;
+
+public enum LinkType
+{
+	// WARNING: Don't modify these values carelessly or you'll risk breaking links in existing worlds!
+	NORMAL(0),
+	POCKET(1),
+	DUNGEON(2),
+	RANDOM(3),
+	DUNGEON_EXIT(4),
+	SAFE_EXIT(5),
+	UNSAFE_EXIT(6),
+	REVERSE(7),
+	PERSONAL(8),
+	CLIENT(-1337);
+	
+	LinkType(int index)
+	{
+		this.index = index;
+	}
+	
+	public final int index;
+	
+	/**
+	 * Get the LinkType given an index. I feel like there should be a better way to do this. 
+	 * @param index
+	 * @return
+	 */
+	public static LinkType getLinkTypeFromIndex(int index)
+	{
+		for(LinkType type : LinkType.values())
+		{
+			if(type.index == index)
+			{
+				return type;
+			}
+		}
+		return null;
+	}
+}

src/main/java/StevenDimDoors/mod_pocketDim/core/LinkTypes.java

@@ -1,21 +0,0 @@
-package StevenDimDoors.mod_pocketDim.core;
-
-public class LinkTypes
-{
-	private LinkTypes() { }
-	
-	public static final int ENUM_MIN = 0;
-	public static final int ENUM_MAX = 7;
-	
-	public static final int CLIENT_SIDE = -1337;
-	
-	// WARNING: Don't modify these values carelessly or you'll risk breaking links in existing worlds!
-	public static final int NORMAL = 0;
-	public static final int POCKET = 1;
-	public static final int DUNGEON = 2;
-	public static final int RANDOM = 3;
-	public static final int DUNGEON_EXIT = 4;
-	public static final int SAFE_EXIT = 5;
-	public static final int UNSAFE_EXIT = 6;
-	public static final int REVERSE = 7;
-}

src/main/java/StevenDimDoors/mod_pocketDim/core/NewDimData.java

@@ -1,32 +1,42 @@
 package StevenDimDoors.mod_pocketDim.core;
 
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Random;
+import java.util.Stack;
 import java.util.TreeMap;
 
 import StevenDimDoors.mod_pocketDim.watcher.ClientLinkData;
+import net.minecraft.item.ItemStack;
+import net.minecraft.world.ChunkCoordIntPair;
 import net.minecraft.world.World;
 import StevenDimDoors.mod_pocketDim.Point3D;
 import StevenDimDoors.mod_pocketDim.config.DDProperties;
 import StevenDimDoors.mod_pocketDim.dungeon.DungeonData;
 import StevenDimDoors.mod_pocketDim.dungeon.pack.DungeonPack;
+import StevenDimDoors.mod_pocketDim.saving.IPackable;
+import StevenDimDoors.mod_pocketDim.saving.PackedDimData;
+import StevenDimDoors.mod_pocketDim.saving.PackedDungeonData;
+import StevenDimDoors.mod_pocketDim.saving.PackedLinkData;
+import StevenDimDoors.mod_pocketDim.saving.PackedLinkTail;
 import StevenDimDoors.mod_pocketDim.util.Point4D;
+import StevenDimDoors.mod_pocketDim.watcher.ClientLinkData;
 import StevenDimDoors.mod_pocketDim.watcher.IUpdateWatcher;
 
-public abstract class NewDimData
+public abstract class NewDimData implements IPackable<PackedDimData>
 {
 	private static class InnerDimLink extends DimLink
 	{
-		public InnerDimLink(Point4D source, DimLink parent, int orientation)
+		public InnerDimLink(Point4D source, DimLink parent, int orientation, DDLock lock)
 		{
-			super(new ClientLinkData(source, orientation), parent);
+			super(source, orientation, lock, parent);
 		}
 		
-		public InnerDimLink(Point4D source, int linkType, int orientation)
+		public InnerDimLink(Point4D source, LinkType linkType, int orientation, DDLock lock)
 		{
-			super(new ClientLinkData(source, orientation), linkType);
+			super(source, orientation, lock, linkType);
 		}
 
 		public void setDestination(int x, int y, int z, NewDimData dimension)
@@ -34,26 +44,6 @@ public abstract class NewDimData
 			tail.setDestination(new Point4D(x, y, z, dimension.id()));
 		}
 		
-		public void clear()
-		{
-			//Release children
-			for (DimLink child : children)
-			{
-				((InnerDimLink) child).parent = null;
-			}
-			children.clear();
-			
-			//Release parent
-			if (parent != null)
-			{
-				parent.children.remove(this);
-			}
-			
-			parent = null;
-			link = null;
-			tail = new LinkTail(0, null);
-		}
-		
 		public boolean overwrite(InnerDimLink nextParent,int orientation)
 		{
 			if (nextParent == null)
@@ -65,7 +55,7 @@ public abstract class NewDimData
 				//Ignore this request silently
 				return false;
 			}
-			if (nextParent.link.point.getDimension() != link.point.getDimension())
+			if (nextParent.point.getDimension() != point.getDimension())
 			{
 				// Ban having children in other dimensions to avoid serialization issues with cross-dimensional tails
 				throw new IllegalArgumentException("source and parent.source must have the same dimension.");
@@ -88,11 +78,11 @@ public abstract class NewDimData
 			parent = nextParent;
 			tail = nextParent.tail;
 			nextParent.children.add(this);
-			this.link.orientation=orientation;
+			this.orientation=orientation;
 			return true;
 		}
 		
-		public void overwrite(int linkType, int orientation)
+		public void overwrite(LinkType linkType, int orientation)
 		{	
 			//Release children
 			for (DimLink child : children)
@@ -111,19 +101,54 @@ public abstract class NewDimData
 			parent = null;
 			tail = new LinkTail(linkType, null);
 			//Set new orientation
-			this.link.orientation=orientation;
+			this.orientation=orientation;
+		}
+		
+		 /**
+		  * only use this on the client to update errything
+		  * @param lock
+		  */
+		public void setLock(DDLock lock)
+		{
+			this.lock = lock;
+		}
+		
+		/**
+		 * create a lock from a key. Returns false if this door already has a lock, or if they has already locked a door
+		 * @param itemStack
+		 * @return
+		 */
+		public boolean createLock(ItemStack itemStack, int lockKey)
+		{
+			if(this.hasLock()||DDLock.hasCreatedLock(itemStack))
+			{
+				return false;
+			}
+			this.lock = DDLock.generateLockKeyPair(itemStack, lockKey);
+			return true;
+		}
+		
+		public void removeLock(ItemStack itemStack, InnerDimLink link)
+		{
+			if(link.doesKeyUnlock(itemStack))
+			{
+				link.lock = null;
 			}
 		}
 		
+	}
+
+	
+	private static int EXPECTED_LINKS_PER_CHUNK = 2;
 	protected static Random random = new Random();
 	
 	protected int id;
 	protected Map<Point4D, InnerDimLink> linkMapping;
 	protected List<InnerDimLink> linkList;
-	protected boolean isDungeon;
 	protected boolean isFilled;
 	protected int depth;
 	protected int packDepth;
+	protected DimensionType type;
 	protected NewDimData parent;
 	protected NewDimData root;
 	protected List<NewDimData> children;
@@ -133,18 +158,16 @@ public abstract class NewDimData
 	protected boolean modified;
 	public IUpdateWatcher<ClientLinkData> linkWatcher;
 	
-	protected NewDimData(int id, NewDimData parent, boolean isPocket, boolean isDungeon,
-		IUpdateWatcher<ClientLinkData> linkWatcher)
+
+	// Don't write this field to a file - it should be recreated on startup
+	private Map<ChunkCoordIntPair, List<InnerDimLink>> chunkMapping;
+	
+	protected NewDimData(int id, NewDimData parent, DimensionType type, IUpdateWatcher<ClientLinkData> linkWatcher)
 	{
-		// The isPocket flag is redundant. It's meant as an integrity safeguard.
-		if (isPocket && (parent == null))
+		if (type != DimensionType.ROOT && (parent == null))
 		{
 			throw new NullPointerException("Dimensions can be pocket dimensions if and only if they have a parent dimension.");
 		}
-		if (isDungeon && !isPocket)
-		{
-			throw new IllegalArgumentException("A dimensional dungeon must also be a pocket dimension.");
-		}
 		
 		this.id = id;
 		this.linkMapping = new TreeMap<Point4D, InnerDimLink>(); //Should be stored in oct tree -- temporary solution
@@ -152,12 +175,13 @@ public abstract class NewDimData
 		this.children = new ArrayList<NewDimData>(); 
 		this.parent = parent;
 		this.packDepth = 0;
-		this.isDungeon = isDungeon;
+		this.type = type;
 		this.isFilled = false;
 		this.orientation = 0;
 		this.origin = null;
 		this.dungeon = null;
 		this.linkWatcher = linkWatcher;
+		this.chunkMapping = new HashMap<ChunkCoordIntPair, List<InnerDimLink>>();
 		this.modified = true;
 		
 		//Register with parent
@@ -176,7 +200,7 @@ public abstract class NewDimData
 		}
 	}
 	
-	protected NewDimData(int id, NewDimData root)
+	protected NewDimData(int id, NewDimData root, DimensionType type)
 	{
 		// This constructor is meant for client-side code only
 		if (root == null)
@@ -190,7 +214,7 @@ public abstract class NewDimData
 		this.children = new ArrayList<NewDimData>(); 
 		this.parent = null;
 		this.packDepth = 0;
-		this.isDungeon = false;
+		this.type = type;
 		this.isFilled = false;
 		this.orientation = 0;
 		this.origin = null;
@@ -198,28 +222,26 @@ public abstract class NewDimData
 		this.linkWatcher = null;
 		this.depth = 0;
 		this.root = root;
+		this.chunkMapping = null;
 	}
 	
 
 	public DimLink findNearestRift(World world, int range, int x, int y, int z)
 	{
-		//TODO: Rewrite this later to use an octtree
-
-		//Sanity check...
+		// Sanity check...
 		if (world.provider.dimensionId != id)
 		{
 			throw new IllegalArgumentException("Attempted to search for links in a World instance for a different dimension!");
 		}
 		
-		//Note: Only detect rifts at a distance > 1, so we ignore the rift
-		//that called this function and any adjacent rifts.
-		
-		DimLink nearest = null;
+		// Note: Only detect rifts at a distance > 0, so we ignore the rift
+		// at the center of the search space.
 		DimLink link;
+		DimLink nearest = null;
 
+		int i, j, k;
 		int distance;
 		int minDistance = Integer.MAX_VALUE;
-		int i, j, k;
 		DDProperties properties = DDProperties.instance();
 
 		for (i = -range; i <= range; i++)
@@ -231,7 +253,7 @@ public abstract class NewDimData
 					distance = getAbsoluteSum(i, j, k);
 					if (distance > 0 && distance < minDistance && world.getBlockId(x + i, y + j, z + k) == properties.RiftBlockID)
 					{
-						link = getLink(x+i, y+j, z+k);
+						link = getLink(x + i, y + j, z + k);
 						if (link != null)
 						{
 							nearest = link;
@@ -247,23 +269,19 @@ public abstract class NewDimData
 	
 	public ArrayList<DimLink> findRiftsInRange(World world, int range, int x, int y, int z)
 	{
-		ArrayList<DimLink> links = new ArrayList<DimLink>();
-		//TODO: Rewrite this later to use an octtree
-
-		//Sanity check...
+		// Sanity check...
 		if (world.provider.dimensionId != id)
 		{
 			throw new IllegalArgumentException("Attempted to search for links in a World instance for a different dimension!");
 		}
 
-		//Note: Only detect rifts at a distance > 1, so we ignore the rift
-		//that called this function and any adjacent rifts.
-		
-		DimLink link;
-		
-		int distance;
+		// Note: Only detect rifts at a distance > 0, so we ignore the rift
+		// at the center of the search space.
 		int i, j, k;
+		int distance;
+		DimLink link;
 		DDProperties properties = DDProperties.instance();
+		ArrayList<DimLink> links = new ArrayList<DimLink>();
 		
 		for (i = -range; i <= range; i++)
 		{
@@ -274,7 +292,7 @@ public abstract class NewDimData
 					distance = getAbsoluteSum(i, j, k);
 					if (distance > 0 && world.getBlockId(x + i, y + j, z + k) == properties.RiftBlockID)
 					{
-						link = getLink(x+i, y+j, z+k);
+						link = getLink(x + i, y + j, z + k);
 						if (link != null)
 						{
 							links.add(link);
@@ -292,20 +310,33 @@ public abstract class NewDimData
 		return Math.abs(i) + Math.abs(j) + Math.abs(k);
 	}
 	
-	public DimLink createLink(int x, int y, int z, int linkType, int orientation)
+	public DimLink createLink(int x, int y, int z, LinkType linkType, int orientation)
 	{
-		return createLink(new Point4D(x, y, z, id), linkType, orientation);
+		return createLink(new Point4D(x, y, z, id), linkType, orientation, null);
 	}
 	
-	public DimLink createLink(Point4D source, int linkType, int orientation)
+	public DimLink createLink(Point4D source, LinkType linkType, int orientation, DDLock locked)
 	{
-		//Return an existing link if there is one to avoid creating multiple links starting at the same point.
+		// Return an existing link if there is one to avoid creating multiple links starting at the same point.
 		InnerDimLink link = linkMapping.get(source);
 		if (link == null)
 		{
-			link = new InnerDimLink(source, linkType, orientation);
+			link = new InnerDimLink(source, linkType, orientation, locked);
 			linkMapping.put(source, link);
 			linkList.add(link);
+			
+			// If this code is running on the server side, add this link to chunkMapping.
+			if (linkType != LinkType.CLIENT)
+			{
+				ChunkCoordIntPair chunk = link.getChunkCoordinates();
+				List<InnerDimLink> chunkLinks = chunkMapping.get(chunk);
+				if (chunkLinks == null)
+				{
+					chunkLinks = new ArrayList<InnerDimLink>(EXPECTED_LINKS_PER_CHUNK);
+					chunkMapping.put(chunk, chunkLinks);
+				}
+				chunkLinks.add(link);
+			}
 		}
 		else
 		{
@@ -314,44 +345,59 @@ public abstract class NewDimData
 		modified = true;
 		
 		//Link created!
-		if (linkType != LinkTypes.CLIENT_SIDE)
+		if (linkType != LinkType.CLIENT)
+
 		{
-			linkWatcher.onCreated(link.link);
+			linkWatcher.onCreated(new ClientLinkData(link));
 		}
 		return link;
 	}
 	
 	public DimLink createChildLink(int x, int y, int z, DimLink parent)
 	{
+		return createChildLink(new Point4D(x, y, z, id), (InnerDimLink) parent, null);
+	}
+	
+	public DimLink createChildLink(Point4D source, DimLink parent, DDLock locked)
+	{
+		// To avoid having multiple links at a single point, if we find an existing link then we overwrite
+		// its destination data instead of creating a new instance.
+		
 		if (parent == null)
 		{
 			throw new IllegalArgumentException("parent cannot be null.");
 		}
-		
-		return createChildLink(new Point4D(x, y, z, id), (InnerDimLink) parent);
-	}
-	
-	private DimLink createChildLink(Point4D source, InnerDimLink parent)
-	{
-		//To avoid having multiple links at a single point, if we find an existing link then we overwrite
-		//its destination data instead of creating a new instance.
-		
 		InnerDimLink link = linkMapping.get(source);
 		if (link == null)
 		{
-			link = new InnerDimLink(source, parent, parent.link.orientation);
+			link = new InnerDimLink(source, parent, parent.orientation, locked);
 			linkMapping.put(source, link);
 			linkList.add(link);
 			
-			//Link created!
-			linkWatcher.onCreated(link.link);
+
+			// If this code is running on the server side, add this link to chunkMapping.
+			// Granted, the client side code should never create child links anyway...
+			if (link.linkType() != LinkType.CLIENT)
+			{
+				ChunkCoordIntPair chunk = link.getChunkCoordinates();
+				List<InnerDimLink> chunkLinks = chunkMapping.get(chunk);
+				if (chunkLinks == null)
+				{
+					chunkLinks = new ArrayList<InnerDimLink>(EXPECTED_LINKS_PER_CHUNK);
+					chunkMapping.put(chunk, chunkLinks);
+				}
+				chunkLinks.add(link);
+			}
+			
+			// Link created!
+			linkWatcher.onCreated(new ClientLinkData(link));
 		}
 		else
 		{
-			if (link.overwrite(parent, parent.link.orientation))
+			if (link.overwrite((InnerDimLink) parent, parent.orientation))
 			{
 				//Link created!
-				linkWatcher.onCreated(link.link);
+				linkWatcher.onCreated(new ClientLinkData(link));
 			}
 		}
 		modified = true;
@@ -368,8 +414,20 @@ public abstract class NewDimData
 		if (target != null)
 		{
 			linkList.remove(target);
-			//Raise deletion event
-			linkWatcher.onDeleted(target.link);
+
+			// If this code is running on the server side, remove this link to chunkMapping.
+			if (link.linkType() != LinkType.CLIENT)
+			{
+				ChunkCoordIntPair chunk = target.getChunkCoordinates();
+				List<InnerDimLink> chunkLinks = chunkMapping.get(chunk);
+				if (chunkLinks != null)
+				{
+					chunkLinks.remove(target);
+				}
+			}
+			
+			// Raise deletion event
+			linkWatcher.onDeleted(new ClientLinkData(link));
 			target.clear();
 			modified = true;
 		}
@@ -378,7 +436,10 @@ public abstract class NewDimData
 
 	public boolean deleteLink(int x, int y, int z)
 	{
-		Point4D location = new Point4D(x, y, z, id);
+		return this.deleteLink(this.getLink(x, y, z));
+	}
+	public boolean deleteLink(Point4D location)
+	{
 		return this.deleteLink(this.getLink(location));
 	}
 
@@ -390,7 +451,7 @@ public abstract class NewDimData
 	
 	public DimLink getLink(Point3D location)
 	{
-		return linkMapping.get(new Point4D(location.getX(),location.getY(),location.getZ(),this.id));
+		return linkMapping.get(new Point4D(location.getX(), location.getY(), location.getZ(), this.id));
 	}
 	
 	public DimLink getLink(Point4D location)
@@ -413,11 +474,10 @@ public abstract class NewDimData
 		return (root != this);
 	}
 	
-	public boolean isDungeon()
+	public DimensionType type()
 	{
-		return isDungeon;
+		return this.type;
 	}
-	
 	public boolean isFilled()
 	{
 		return isFilled;
@@ -491,7 +551,7 @@ public abstract class NewDimData
 	
 	public void initializeDungeon(int originX, int originY, int originZ, int orientation, DimLink incoming, DungeonData dungeon)
 	{
-		if (!isDungeon)
+		if (this.type != DimensionType.DUNGEON)
 		{
 			throw new IllegalStateException("Cannot invoke initializeDungeon() on a non-dungeon dimension.");
 		}
@@ -503,7 +563,7 @@ public abstract class NewDimData
 		{
 			throw new IllegalArgumentException("orientation must be between 0 and 3, inclusive.");
 		}
-		setDestination(incoming, originX, originY, originZ);
+		setLinkDestination(incoming, originX, originY, originZ);
 		this.origin = incoming.destination();
 		this.orientation = orientation;
 		this.dungeon = dungeon;
@@ -516,11 +576,42 @@ public abstract class NewDimData
 	 */
 	public void setParentToRoot()
 	{
+		// Update this dimension's information
+		if (parent != null)
+		{
+			parent.children.remove(this);
+		}
 		this.depth = 1;
 		this.parent = this.root;
 		this.root.children.add(this);
 		this.root.modified = true;
 		this.modified = true;
+		if (this.type == DimensionType.DUNGEON)
+		{
+			this.packDepth = calculatePackDepth(this.parent, this.dungeon);
+		}
+		
+		// Update the depths for child dimensions using a depth-first traversal
+		Stack<NewDimData> ordering = new Stack<NewDimData>();
+		ordering.addAll(this.children);
+		
+		while (!ordering.isEmpty())
+		{
+			NewDimData current = ordering.pop();
+			current.resetDepth();
+			ordering.addAll(current.children);
+		}
+	}
+	
+	private void resetDepth()
+	{
+		// We assume that this is only applied to dimensions with parents
+		this.depth = this.parent.depth + 1;
+		if (this.type == DimensionType.DUNGEON)
+		{
+			this.packDepth = calculatePackDepth(this.parent, this.dungeon);
+		}
+		this.modified = true;
 	}
 	
 	public static int calculatePackDepth(NewDimData parent, DungeonData current)
@@ -549,11 +640,8 @@ public abstract class NewDimData
 		{
 			return parent.packDepth + 1;
 		}
-		else
-		{
 		return 1;
 	}
-	}
 
 	public void initializePocket(int originX, int originY, int originZ, int orientation, DimLink incoming)
 	{
@@ -566,19 +654,47 @@ public abstract class NewDimData
 			throw new IllegalStateException("The dimension has already been initialized.");
 		}
 		
-		setDestination(incoming, originX, originY, originZ);
+		setLinkDestination(incoming, originX, originY, originZ);
 		this.origin = incoming.destination();
 		this.orientation = orientation;
 		this.modified = true;
 	}
 	
-	public void setDestination(DimLink incoming, int x, int y, int z)
+	public void setLinkDestination(DimLink incoming, int x, int y, int z)
 	{
 		InnerDimLink link = (InnerDimLink) incoming;
 		link.setDestination(x, y, z, this);
 		this.modified = true;
 	}
 	
+	public void lock(DimLink link, boolean locked)
+	{
+		InnerDimLink innerLink = (InnerDimLink)link;
+		innerLink.lock.setLockState(locked);
+		modified = true;
+	}
+	
+	public void setLock(DimLink link, DDLock lock)
+	{
+		InnerDimLink innerLink = (InnerDimLink)link;
+		innerLink.setLock(lock);
+		modified = true;
+	}
+	
+	public void createLock(DimLink link, ItemStack item, int lockKey)
+	{
+		InnerDimLink innerLink = (InnerDimLink)link;
+		innerLink.createLock(item, lockKey);
+		modified = true;
+	}
+	
+	public void removeLock(DimLink link, ItemStack item)
+	{
+		InnerDimLink innerLink = (InnerDimLink)link;
+		innerLink.removeLock(item, innerLink);
+		modified = true;
+	}
+
 	public DimLink getRandomLink()
 	{
 		if (linkMapping.isEmpty())
@@ -589,10 +705,17 @@ public abstract class NewDimData
 		{
 			return linkList.get(random.nextInt(linkList.size()));
 		}
-		else
-		{
 		return linkList.get(0);
 	}
+	
+	public Iterable<? extends DimLink> getChunkLinks(int chunkX, int chunkZ)
+	{
+		List<InnerDimLink> chunkLinks = chunkMapping.get(new ChunkCoordIntPair(chunkX, chunkZ));
+		if (chunkLinks != null)
+		{
+			return chunkLinks;
+		}
+		return new ArrayList<InnerDimLink>(0);
 	}
 	
 	public boolean isModified()
@@ -605,6 +728,101 @@ public abstract class NewDimData
 		this.modified = false;
 	}
 	
+	public void clear()
+	{
+		// If this dimension has a parent, remove it from its parent's list of children
+		if (parent != null)
+		{
+			parent.children.remove(this);
+		}
+		// Remove this dimension as the parent of its children
+		for (NewDimData child : children)
+		{
+			child.parent = null;
+		}
+		// Clear all fields
+		id = Integer.MIN_VALUE;
+		linkMapping.clear();
+		linkMapping = null;
+		linkList.clear();
+		linkList = null;
+		children.clear();
+		children = null;
+		type = null;
+		isFilled = false;
+		depth = Integer.MIN_VALUE;
+		packDepth = Integer.MIN_VALUE;
+		origin = null;
+		orientation = Integer.MIN_VALUE;
+		dungeon = null;
+		linkWatcher = null;
+	}
+	
+	public PackedDimData pack()
+	{
+		ArrayList<Integer> ChildIDs = new ArrayList<Integer>();
+		ArrayList<PackedLinkData> Links = new ArrayList<PackedLinkData>();
+		ArrayList<PackedLinkTail> Tails = new ArrayList<PackedLinkTail>();
+		PackedDungeonData packedDungeon=null; 
+		
+		if(this.dungeon!=null)
+		{
+			packedDungeon= new PackedDungeonData(dungeon.weight(), dungeon.isOpen(), dungeon.isInternal(), 
+					dungeon.schematicPath(), dungeon.schematicName(), dungeon.dungeonType().Name, 
+					dungeon.dungeonType().Owner.getName());
+		}
+		//Make a list of children
+		for(NewDimData data : this.children)
+		{
+			ChildIDs.add(data.id);
+		}
+		for(DimLink link:this.links())
+		{
+			ArrayList<Point3D> children = new ArrayList<Point3D>();
+			Point3D parentPoint = new Point3D(-1,-1,-1);
+			if(link.parent!=null)
+			{
+				parentPoint=link.parent.point.toPoint3D();
+			}
+			
+			for(DimLink childLink : link.children)
+			{
+				children.add(childLink.source().toPoint3D());
+			}
+			PackedLinkTail tail = new PackedLinkTail(link.tail.getDestination(),link.tail.getLinkType());
+			Links.add(new PackedLinkData(link.point,parentPoint,tail,link.orientation,children,link.lock));
+			
+			PackedLinkTail tempTail = new PackedLinkTail(link.tail.getDestination(),link.tail.getLinkType());
+			if(Tails.contains(tempTail))
+			{
+				Tails.add(tempTail);
+			}
+			
+			
+		}
+		int parentID=this.id;
+		Point3D originPoint=new Point3D(0,0,0);
+		if(this.parent!=null)
+		{
+			parentID = this.parent.id;
+		}
+		if(this.origin!=null)
+		{
+			originPoint=this.origin.toPoint3D();
+		}
+		return new PackedDimData(this.id, depth, this.packDepth, parentID, this.root().id(), orientation, 
+									type, isFilled,packedDungeon, originPoint, ChildIDs, Links, Tails);
+		// FIXME: IMPLEMENTATION PLZTHX
+		//I tried
+	}
+	
+	@Override
+	public String name()
+	{
+		return String.valueOf(id);
+	}
+
+	@Override
 	public String toString()
 	{
 		return "DimID= " + this.id;

src/main/java/StevenDimDoors/mod_pocketDim/core/PocketManager.java

@@ -7,32 +7,26 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
-
-import cpw.mods.fml.common.FMLCommonHandler;
-import cpw.mods.fml.relauncher.Side;
-import cpw.mods.fml.relauncher.SideOnly;
-
+import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.world.World;
 import net.minecraft.world.WorldServer;
 import net.minecraftforge.common.DimensionManager;
-import StevenDimDoors.mod_pocketDim.Point3D;
 import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.config.DDProperties;
 import StevenDimDoors.mod_pocketDim.helpers.Compactor;
 import StevenDimDoors.mod_pocketDim.helpers.DeleteFolder;
 import StevenDimDoors.mod_pocketDim.saving.DDSaveHandler;
-import StevenDimDoors.mod_pocketDim.saving.IPackable;
 import StevenDimDoors.mod_pocketDim.saving.OldSaveImporter;
 import StevenDimDoors.mod_pocketDim.saving.PackedDimData;
-import StevenDimDoors.mod_pocketDim.saving.PackedDungeonData;
-import StevenDimDoors.mod_pocketDim.saving.PackedLinkData;
-import StevenDimDoors.mod_pocketDim.saving.PackedLinkTail;
 import StevenDimDoors.mod_pocketDim.util.Point4D;
 import StevenDimDoors.mod_pocketDim.watcher.ClientDimData;
 import StevenDimDoors.mod_pocketDim.watcher.ClientLinkData;
 import StevenDimDoors.mod_pocketDim.watcher.IUpdateSource;
 import StevenDimDoors.mod_pocketDim.watcher.IUpdateWatcher;
 import StevenDimDoors.mod_pocketDim.watcher.UpdateWatcherProxy;
+import cpw.mods.fml.common.FMLCommonHandler;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
 
 /**
  * This class regulates all the operations involving the storage and manipulation of dimensions.
@@ -41,120 +35,25 @@ import StevenDimDoors.mod_pocketDim.watcher.UpdateWatcherProxy;
  */
 public class PocketManager
 {
-	private static class InnerDimData extends NewDimData implements IPackable<PackedDimData>
+	private static class InnerDimData extends NewDimData
 	{
 		// This class allows us to instantiate NewDimData indirectly without exposing
 		// a public constructor from NewDimData. It's meant to stop us from constructing
 		// instances of NewDimData going through PocketManager. In turn, that enforces
 		// that any link destinations must be real dimensions controlled by PocketManager.
 
-		public InnerDimData(int id, InnerDimData parent, boolean isPocket, boolean isDungeon,
+		public InnerDimData(int id, InnerDimData parent, DimensionType type,
 			IUpdateWatcher<ClientLinkData> linkWatcher)
 		{
-			super(id, parent, isPocket, isDungeon, linkWatcher);
+			super(id, parent, type, linkWatcher);
 		}
 		
-		public InnerDimData(int id, InnerDimData root)
+		public InnerDimData(int id, NewDimData root, DimensionType type)
 		{
 			// This constructor is meant for client-side code only
-			super(id, root);
+			super(id, root, type);
 		}
 
-		public void clear()
-		{
-			// If this dimension has a parent, remove it from its parent's list of children
-			if (parent != null)
-			{
-				parent.children.remove(this);
-			}
-			// Remove this dimension as the parent of its children
-			for (NewDimData child : children)
-			{
-				child.parent = null;
-			}
-			// Clear all fields
-			id = Integer.MIN_VALUE;
-			linkMapping.clear();
-			linkMapping = null;
-			linkList.clear();
-			linkList = null;
-			children.clear();
-			children = null;
-			isDungeon = false;
-			isFilled = false;
-			depth = Integer.MIN_VALUE;
-			packDepth = Integer.MIN_VALUE;
-			origin = null;
-			orientation = Integer.MIN_VALUE;
-			dungeon = null;
-			linkWatcher = null;
-		}
-
-		@Override
-		public String name()
-		{
-			return String.valueOf(id);
-		}
-
-		@Override
-		public PackedDimData pack()
-		{
-			ArrayList<Integer> ChildIDs = new ArrayList<Integer>();
-			ArrayList<PackedLinkData> Links = new ArrayList<PackedLinkData>();
-			ArrayList<PackedLinkTail> Tails = new ArrayList<PackedLinkTail>();
-			PackedDungeonData packedDungeon=null; 
-			
-			if(this.dungeon!=null)
-			{
-				packedDungeon= new PackedDungeonData(dungeon.weight(), dungeon.isOpen(), dungeon.isInternal(), 
-						dungeon.schematicPath(), dungeon.schematicName(), dungeon.dungeonType().Name, 
-						dungeon.dungeonType().Owner.getName());
-			}
-			//Make a list of children
-			for(NewDimData data : this.children)
-			{
-				ChildIDs.add(data.id);
-			}
-			for(DimLink link:this.links())
-			{
-				ArrayList<Point3D> children = new ArrayList<Point3D>();
-				Point3D parentPoint = new Point3D(-1,-1,-1);
-				if(link.parent!=null)
-				{
-					parentPoint=link.parent.link.point.toPoint3D();
-				}
-				
-				for(DimLink childLink : link.children)
-				{
-					children.add(childLink.source().toPoint3D());
-				}
-				PackedLinkTail tail = new PackedLinkTail(link.tail.getDestination(),link.tail.getLinkType());
-				Links.add(new PackedLinkData(link.link.point,parentPoint,tail,link.link.orientation,children));
-				
-				PackedLinkTail tempTail = new PackedLinkTail(link.tail.getDestination(),link.tail.getLinkType());
-				if(Tails.contains(tempTail))
-				{
-					Tails.add(tempTail);
-
-				}
-				
-				
-			}
-			int parentID=this.id;
-			Point3D originPoint=new Point3D(0,0,0);
-			if(this.parent!=null)
-			{
-				parentID = this.parent.id;
-			}
-			if(this.origin!=null)
-			{
-				originPoint=this.origin.toPoint3D();
-			}
-			return new PackedDimData(this.id, depth, this.packDepth, parentID, this.root().id(), orientation, 
-										isDungeon, isFilled,packedDungeon, originPoint, ChildIDs, Links, Tails);
-			// FIXME: IMPLEMENTATION PLZTHX
-			//I tried
-		}
 	}
 	
 	  private static class ClientLinkWatcher implements IUpdateWatcher<ClientLinkData>
@@ -164,7 +63,7 @@ public class PocketManager
 		  {
 			  Point4D source = link.point;
 			  NewDimData dimension = getDimensionData(source.getDimension());
-			  dimension.createLink(source.getX(), source.getY(), source.getZ(), LinkTypes.CLIENT_SIDE,link.orientation);
+			  dimension.createLink(source, LinkType.CLIENT, 0, link.lock);
 		  }
 
 		  @Override
@@ -174,6 +73,16 @@ public class PocketManager
 			  NewDimData dimension = getDimensionData(source.getDimension());
 			  dimension.deleteLink(source.getX(), source.getY(), source.getZ());
 		  }
+
+		  @Override
+		  public void update(ClientLinkData link)
+		  {
+			  Point4D source = link.point;
+			  NewDimData dimension = getDimensionData(source.getDimension());	
+			  DimLink dLink = dimension.getLink(source);
+			  dLink.lock=link.lock;
+			  
+		  }
       }
 	
 	private static class ClientDimWatcher implements IUpdateWatcher<ClientDimData>
@@ -181,7 +90,7 @@ public class PocketManager
 		@Override
 		public void onCreated(ClientDimData data)
 		{
-			registerClientDimension(data.ID, data.RootID);
+			registerClientDimension(data.ID, data.rootID, data.type);
 		}
 
 		@Override
@@ -189,6 +98,12 @@ public class PocketManager
 		{
 			deletePocket(getDimensionData(data.ID), false);
 		}
+
+		@Override
+		public void update(ClientDimData message)
+		{
+			// TODO Auto-generated method stub
+		}
 	}
 
 	private static class DimRegistrationCallback implements IDimRegistrationCallback
@@ -199,9 +114,9 @@ public class PocketManager
 		// exposing a private constructor ONLY to a very specific trusted class.
 
 		@Override
-		public NewDimData registerDimension(int dimensionID, int rootID)
+		public NewDimData registerDimension(int dimensionID, int rootID, DimensionType type)
 		{
-			return registerClientDimension(dimensionID, rootID);
+			return registerClientDimension(dimensionID, rootID, type);
 		}
 	}
 
@@ -223,6 +138,9 @@ public class PocketManager
 	//ArrayList that stores the dimension IDs of any dimension that has been deleted.
 	private static ArrayList<Integer> dimensionIDBlackList = null;
 
+	//Stores all the personal pocket mappings
+	private static HashMap<String, NewDimData> personalPocketsMapping = null; 
+
 	public static boolean isLoaded()
 	{
 		return isLoaded;
@@ -247,6 +165,8 @@ public class PocketManager
 		dimensionData = new HashMap<Integer, InnerDimData>();
 		rootDimensions = new ArrayList<NewDimData>();
 		dimensionIDBlackList = new ArrayList<Integer>();
+		personalPocketsMapping = new HashMap<String, NewDimData>();
+		
 
 		if(FMLCommonHandler.instance().getEffectiveSide().isClient())
 		{
@@ -258,7 +178,8 @@ public class PocketManager
 		}
 		//Register Limbo
 		DDProperties properties = DDProperties.instance();
-		registerDimension(properties.LimboDimensionID, null, false, false);
+		registerDimension(properties.LimboDimensionID, null, DimensionType.ROOT);
+		
 
 		loadInternal();
 
@@ -271,12 +192,16 @@ public class PocketManager
 
 	public static boolean registerPackedDimData(PackedDimData packedData)
 	{
-		
 		InnerDimData dimData;
+		DimensionType type = DimensionType.getTypeFromIndex(packedData.DimensionType);
+		if(type == null)
+		{
+			throw new IllegalArgumentException("Invalid dimension type");
+		}
 		//register roots
 		if(packedData.ID==packedData.ParentID)
 		{
-			dimData =  new InnerDimData(packedData.ID, null, false, false, linkWatcher);
+			dimData =  new InnerDimData(packedData.ID, null, type, linkWatcher);
 			dimData.root=dimData;
 			dimData.parent=dimData;
 			dimData.depth=packedData.Depth;
@@ -288,10 +213,10 @@ public class PocketManager
 		else //register children
 		{
 			InnerDimData test = PocketManager.dimensionData.get(packedData.ParentID);
-			dimData =  new InnerDimData(packedData.ID, test,true, packedData.IsDungeon, linkWatcher);
+			dimData =  new InnerDimData(packedData.ID, test, type, linkWatcher);
 			dimData.isFilled=packedData.IsFilled;
 			dimData.origin = new Point4D(packedData.Origin.getX(),packedData.Origin.getY(),packedData.Origin.getZ(),packedData.ID);
-			dimData.root=PocketManager.getDimensionData(packedData.RootID);
+			dimData.root = PocketManager.createDimensionData(packedData.RootID);
 
 			if(packedData.DungeonData!=null)
 			{
@@ -315,44 +240,48 @@ public class PocketManager
 		{
 			if (deleteFolder)
 			{
-				deleteDimensionFiles(target);
+				deleteDimensionFiles(dimension);
 			}
+			// Note: We INTENTIONALLY don't unregister the dimensions that we
+			// delete with Forge. Instead, we keep them registered to stop Forge
+			// from reallocating those IDs to other mods such as Mystcraft. This
+			// is to prevent bugs. Blacklisted dimensions are still properly
+			// unregistered when the server shuts down.
 			dimensionIDBlackList.add(dimension.id);
-			deleteDimensionData(dimension.id);
+			deleteDimensionData(dimension);
 			return true;
 		}
 		return false;
 	}
 
-	private static boolean deleteDimensionFiles(NewDimData target)
-	{
-		InnerDimData dimension = (InnerDimData) target;
-		if (dimension.isPocketDimension() && DimensionManager.getWorld(dimension.id()) == null)
+	private static void deleteDimensionFiles(InnerDimData dimension)
 	{
+		// We assume that the caller checks if the dimension is loaded, for the
+		// sake of efficiency. Don't call this on a loaded dimension or bad
+		// things will happen!
 		String saveRootPath = DimensionManager.getCurrentSaveRootDirectory().getAbsolutePath();
 		File saveDirectory = new File(saveRootPath + "/DimensionalDoors/pocketDimID" + dimension.id());
 		DeleteFolder.deleteFolder(saveDirectory);
 		File dataFile = new File(saveRootPath + "/DimensionalDoors/data/dim_" + dimension.id() + ".txt");
 		dataFile.delete();
-			return true;
-		}
-		return false;
 	}
 
-	private static boolean deleteDimensionData(int dimensionID)
+	private static void deleteDimensionData(InnerDimData dimension)
 	{
-		if (dimensionData.containsKey(dimensionID) && DimensionManager.getWorld(dimensionID) == null)
+		// We assume that the caller checks if the dimension is loaded, for the
+		// sake of efficiency. Don't call this on a loaded dimension or bad
+		// things will happen!
+		if (dimensionData.remove(dimension.id()) != null)
 		{
-			NewDimData target = PocketManager.getDimensionData(dimensionID);
-			InnerDimData dimension = (InnerDimData) target;
-
-			dimensionData.remove(dimensionID);
 			// Raise the dim deleted event
 			getDimwatcher().onDeleted(new ClientDimData(dimension));
 			dimension.clear();
-			return true;
 		}
-		return false;
+		else
+		{
+			// This should never happen. A simple sanity check.
+			throw new IllegalArgumentException("The specified dimension is not listed with PocketManager.");
+		}
 	}
 
 	private static void registerPockets(DDProperties properties)
@@ -362,9 +291,16 @@ public class PocketManager
 			if (dimension.isPocketDimension())
 			{
 				try
+				{
+					if(personalPocketsMapping.containsValue(dimension))
+					{
+						DimensionManager.registerDimension(dimension.id(), properties.PersonalPocketProviderID);
+					}
+					else
 					{
 						DimensionManager.registerDimension(dimension.id(), properties.PocketProviderID);
 					}
+				}
 				catch (Exception e)
 				{
 					System.err.println("Could not register pocket dimension #" + dimension.id() + ". Probably caused by a version update/save data corruption/other mods.");
@@ -410,8 +346,6 @@ public class PocketManager
 	 */
 	private static void loadInternal()
 	{
-		//System.out.println(!FMLCommonHandler.instance().getSide().isClient());
-
 		File saveDir = DimensionManager.getCurrentSaveRootDirectory();
 		if (saveDir != null)
 		{
@@ -424,7 +358,8 @@ public class PocketManager
 				{
 					System.out.println("Importing old DD save data...");
 					OldSaveImporter.importOldSave(oldSaveData);
-					oldSaveData.delete();
+
+					oldSaveData.renameTo(new File(oldSaveData.getAbsolutePath()+"_IMPORTED"));
 
 					System.out.println("Import Succesful!");
 				}
@@ -478,6 +413,11 @@ public class PocketManager
 
 	public static WorldServer loadDimension(int id)
 	{
+		if (!DimensionManager.isDimensionRegistered(id))
+		{
+			return null;
+		}
+
 		WorldServer world = DimensionManager.getWorld(id);
 		if (world == null)
 		{
@@ -494,10 +434,17 @@ public class PocketManager
 
 	public static NewDimData registerDimension(World world)
 	{
-		return registerDimension(world.provider.dimensionId, null, false, false);
+		return registerDimension(world.provider.dimensionId, null, DimensionType.ROOT);
 	}
 
-	public static NewDimData registerPocket(NewDimData parent, boolean isDungeon)
+	/**
+	 * method to register a new pocket with DD and with forge.
+	 * @param parent
+	 * @param type
+	 * @param playername
+	 * @return
+	 */
+	public static NewDimData registerPocket(NewDimData parent, DimensionType type, String playername)
 	{
 		if (parent == null)
 		{
@@ -506,9 +453,40 @@ public class PocketManager
 		
 		DDProperties properties = DDProperties.instance();
 		int dimensionID = DimensionManager.getNextFreeDimId();
-		DimensionManager.registerDimension(dimensionID, properties.PocketProviderID);
-		return registerDimension(dimensionID, (InnerDimData) parent, true, isDungeon);
+		
+		//register a personal pocket
+		if(type == DimensionType.PERSONAL)
+		{
+			if(playername == null)
+			{
+				throw new IllegalArgumentException("A personal pocket must be attached to a playername");
 			}
+			DimensionManager.registerDimension(dimensionID, properties.PersonalPocketProviderID);
+			NewDimData data = registerDimension(dimensionID, (InnerDimData) parent, type);
+			personalPocketsMapping.put(playername, data);
+			return data;
+		}
+		else
+		{	//register a pocket as personal if its parents are personal, but without a mapping. 
+			if(parent.type == DimensionType.PERSONAL)
+			{
+				DimensionManager.registerDimension(dimensionID, properties.PersonalPocketProviderID);
+				NewDimData data = registerDimension(dimensionID, (InnerDimData) parent, DimensionType.PERSONAL);	
+				return data;
+			}
+			
+			//register a standard pocket
+			DimensionManager.registerDimension(dimensionID, properties.PocketProviderID);
+			return registerDimension(dimensionID, (InnerDimData) parent, type);
+		}
+		
+	}
+	
+	public static NewDimData registerPocket(NewDimData parent, DimensionType type)
+	{
+		return registerPocket(parent, type, null);
+	}
+	
 	/**
 	 * Registers a dimension with DD but NOT with forge.
 	 * @param dimensionID
@@ -517,7 +495,7 @@ public class PocketManager
 	 * @param isDungeon
 	 * @return
 	 */
-	private static NewDimData registerDimension(int dimensionID, InnerDimData parent, boolean isPocket, boolean isDungeon)
+	private static NewDimData registerDimension(int dimensionID, InnerDimData parent, DimensionType type)
 	{	
 		if (dimensionData.containsKey(dimensionID))
 		{
@@ -527,7 +505,7 @@ public class PocketManager
 			}
 			throw new IllegalArgumentException("Cannot register a dimension with ID = " + dimensionID + " because it has already been registered.");
 		}
-		InnerDimData dimension = new InnerDimData(dimensionID, parent, isPocket, isDungeon, linkWatcher);
+		InnerDimData dimension = new InnerDimData(dimensionID, parent, type, linkWatcher);
 		dimensionData.put(dimensionID, dimension);
 		if (!dimension.isPocketDimension())
 		{
@@ -539,16 +517,17 @@ public class PocketManager
 	}
 
 	@SideOnly(Side.CLIENT)
-	private static NewDimData registerClientDimension(int dimensionID, int rootID)
-	{
-		System.out.println("Registered dim "+dimensionID+" on the client.");
-		// No need to raise events heres since this code should only run on the client side
-		// getDimensionData() always handles root dimensions properly, even if the weren't defined before
+	private static NewDimData registerClientDimension(int dimensionID, int rootID, DimensionType type)
 
-		// SenseiKiwi: I'm a little worried about how getDimensionData will raise
+	{
+		// No need to raise events heres since this code should only run on the
+		// client side. createDimensionData() always handles root dimensions
+		// properly, even if they weren't defined before.
+
+		// SenseiKiwi: I'm a little worried about how createDimensionData will raise
 		// an event when it creates any root dimensions... Needs checking later.
 
-		InnerDimData root = (InnerDimData) getDimensionData(rootID);
+		InnerDimData root = (InnerDimData) createDimensionData(rootID);
 		InnerDimData dimension;
 
 		if (rootID != dimensionID)
@@ -556,7 +535,7 @@ public class PocketManager
 			dimension = dimensionData.get(dimensionID);
 			if (dimension == null)
 			{
-				dimension = new InnerDimData(dimensionID, root);
+				dimension = new InnerDimData(dimensionID, root, type);
 				dimensionData.put(dimension.id(), dimension);
 			}
 		}
@@ -564,7 +543,7 @@ public class PocketManager
 		{
 			dimension = root;
 		}
-		if(dimension.isPocketDimension()&&!DimensionManager.isDimensionRegistered(dimension.id()))
+		if (dimension.isPocketDimension() && !DimensionManager.isDimensionRegistered(dimension.id()))
 		{
 			//Im registering pocket dims here. I *think* we can assume that if its a pocket and we are 
 			//registering its dim data, we also need to register it with forge. 
@@ -576,29 +555,39 @@ public class PocketManager
 		return dimension;
 	}
 	
-	public static NewDimData getDimensionData(World world)
-	{	
-		return getDimensionData(world.provider.dimensionId);
-	}
-
 	public static NewDimData getDimensionData(int dimensionID)
 	{
-		//Retrieve the data for a dimension. If we don't have a record for that dimension,
-		//assume it's a non-pocket dimension that hasn't been initialized with us before
-		//and create a NewDimData instance for it.
-		//Any pocket dimension must be listed with PocketManager to have a dimension ID
-		//assigned, so it's safe to assume that any unknown dimensions don't belong to us.
-		
-		//FIXME: What's the point of this condition? Most calls to this function will crash anyway! ~SenseiKiwi
-		if(PocketManager.dimensionData == null)
-		{
-			System.out.println("Something odd happend during shutdown");
-			return null;
+		return PocketManager.dimensionData.get(dimensionID);
 	}
+	
+	public static NewDimData getDimensionData(World dimension)
+	{
+		return PocketManager.dimensionData.get(dimension.provider.dimensionId);
+	}
+
+	public static NewDimData createDimensionData(World world)
+	{	
+		return createDimensionData(world.provider.dimensionId);
+	}
+	
+	public static NewDimData createDimensionDataDangerously(int dimensionID)
+	{
+		// Same as createDimensionData(int), but public. Meant to discourage anyone from
+		// using it unless absolutely needed! We'll probably phase this out eventually.
+		return createDimensionData(dimensionID);
+	}
+
+	protected static NewDimData createDimensionData(int dimensionID)
+	{
+		// Retrieve the data for a dimension. If we don't have a record for that dimension,
+		// assume it's a non-pocket dimension that hasn't been initialized with us before
+		// and create a NewDimData instance for it.
 		NewDimData dimension = PocketManager.dimensionData.get(dimensionID);
+		
+		// if we do not have a record of it, then it must be a root
 		if (dimension == null)
 		{
-			dimension = registerDimension(dimensionID, null, false, false);
+			dimension = registerDimension(dimensionID, null, DimensionType.ROOT);
 		}
 		return dimension;
 	}
@@ -624,6 +613,7 @@ public class PocketManager
 
 		unregisterPockets();
 		dimensionData = null;
+		personalPocketsMapping = null;
 		rootDimensions = null;
 		isLoaded = false;
 		isConnected = false;
@@ -646,11 +636,8 @@ public class PocketManager
 		{
 			return dimension.getLink(x, y, z);
 		}
-		else
-		{
 		return null;
 	}
-	}
 
 	public static boolean isBlackListed(int dimensionID)
 	{
@@ -715,9 +702,6 @@ public class PocketManager
 		load();
 		Compactor.readDimensions(input, new DimRegistrationCallback());
 
-		// Register pocket dimensions
-		DDProperties properties = DDProperties.instance();
-				
 		isLoaded = true;
 		isLoading = false;
 		isConnected = true;
@@ -727,4 +711,29 @@ public class PocketManager
 	{
 		return dimWatcher;
 	}
+	
+	public static UpdateWatcherProxy<ClientLinkData> getLinkWatcher() 
+	{
+		return linkWatcher;
+	}
+
+	public static NewDimData getPersonalDimensionForPlayer(String name)
+	{
+		if(personalPocketsMapping.containsKey(name))
+		{
+			return personalPocketsMapping.get(name);
+		}
+		return null;
+	}
+	
+	public static void setPersonalPocketsMapping(HashMap<String, NewDimData> ppMap)
+	{
+		personalPocketsMapping = ppMap;
+	}
+
+	public static HashMap<String, NewDimData> getPersonalPocketMapping()
+	{
+		// TODO Auto-generated method stub
+		return personalPocketsMapping;
+	}
 }

src/main/java/StevenDimDoors/mod_pocketDim/dungeon/DungeonSchematic.java

@@ -9,7 +9,6 @@ import java.util.Map;
 import java.util.Map.Entry;
 import java.util.Random;
 import java.util.TreeMap;
-
 import net.minecraft.block.Block;
 import net.minecraft.entity.Entity;
 import net.minecraft.nbt.NBTTagCompound;
@@ -20,7 +19,7 @@ import StevenDimDoors.mod_pocketDim.Point3D;
 import StevenDimDoors.mod_pocketDim.blocks.IDimDoor;
 import StevenDimDoors.mod_pocketDim.config.DDProperties;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 import StevenDimDoors.mod_pocketDim.schematic.BlockRotator;
@@ -162,7 +161,7 @@ public class DungeonSchematic extends Schematic {
 		applyFilter(standardizer);
 	}
 	
-	private Map<Short, Short> getAssignedToStandardIDMapping(DDProperties properties)
+	private static Map<Short, Short> getAssignedToStandardIDMapping(DDProperties properties)
 	{
 		//If we ever need this broadly or support other mods, this should be moved to a separate class
 		TreeMap<Short, Short> mapping = new TreeMap<Short, Short>();
@@ -247,7 +246,7 @@ public class DungeonSchematic extends Schematic {
 			world.setBlockTileEntity(pocketPoint.getX(), pocketPoint.getY(), pocketPoint.getZ(), TileEntity.createAndLoadEntity(tileTag));
 		}
 		
-		setUpDungeon(PocketManager.getDimensionData(world), world, pocketCenter, turnAngle, entryLink, random, properties, blockSetter);
+		setUpDungeon(PocketManager.createDimensionData(world), world, pocketCenter, turnAngle, entryLink, random, properties, blockSetter);
 	}
 	
 	private void setUpDungeon(NewDimData dimension, World world, Point3D pocketCenter, int turnAngle, DimLink entryLink, Random random, DDProperties properties, IBlockSetter blockSetter)
@@ -322,10 +321,10 @@ public class DungeonSchematic extends Schematic {
 	private static void createEntranceReverseLink(World world, NewDimData dimension, Point3D pocketCenter, DimLink entryLink)
 	{
 		int orientation = world.getBlockMetadata(pocketCenter.getX(), pocketCenter.getY() - 1, pocketCenter.getZ());
-		DimLink reverseLink = dimension.createLink(pocketCenter.getX(), pocketCenter.getY(), pocketCenter.getZ(), LinkTypes.REVERSE, orientation);
+		DimLink reverseLink = dimension.createLink(pocketCenter.getX(), pocketCenter.getY(), pocketCenter.getZ(), LinkType.REVERSE, orientation);
 		Point4D destination = entryLink.source();
 		NewDimData prevDim = PocketManager.getDimensionData(destination.getDimension());
-		prevDim.setDestination(reverseLink, destination.getX(), destination.getY(), destination.getZ());
+		prevDim.setLinkDestination(reverseLink, destination.getX(), destination.getY(), destination.getZ());
 		initDoorTileEntity(world, pocketCenter);
 	}
 	
@@ -335,7 +334,7 @@ public class DungeonSchematic extends Schematic {
 		Point3D location = point.clone();
 		BlockRotator.transformPoint(location, entrance, rotation, pocketCenter);
 		int orientation = world.getBlockMetadata(location.getX(), location.getY() - 1, location.getZ());
-		dimension.createLink(location.getX(), location.getY(), location.getZ(), LinkTypes.DUNGEON_EXIT, orientation);
+		dimension.createLink(location.getX(), location.getY(), location.getZ(), LinkType.DUNGEON_EXIT, orientation);
 		//Replace the sandstone block under the exit door with the same block as the one underneath it
 		int x = location.getX();
 		int y = location.getY() - 3;
@@ -356,7 +355,7 @@ public class DungeonSchematic extends Schematic {
 		BlockRotator.transformPoint(location, entrance, rotation, pocketCenter);
 		int orientation = world.getBlockMetadata(location.getX(), location.getY() - 1, location.getZ());
 
-		dimension.createLink(location.getX(), location.getY(), location.getZ(), LinkTypes.DUNGEON, orientation);
+		dimension.createLink(location.getX(), location.getY(), location.getZ(), LinkType.DUNGEON, orientation);
 		initDoorTileEntity(world, location);
 	}
 	

src/main/java/StevenDimDoors/mod_pocketDim/dungeon/pack/DungeonPack.java

@@ -298,4 +298,9 @@ public class DungeonPack
 		WeightedContainer<DungeonData> resultContainer = (WeightedContainer<DungeonData>) WeightedRandom.getRandomItem(random, weights);
 		return 	(resultContainer != null) ? resultContainer.getData() : null;
 	}
+	@Override
+	public String toString()
+	{
+		return this.name;
+	}
 }

src/main/java/StevenDimDoors/mod_pocketDim/dungeon/pack/DungeonType.java

@@ -45,4 +45,9 @@ public class DungeonType implements Comparable<DungeonType>
 		final int prime = 2039;
 		return prime * ID;
 	}
+	@Override
+	public String toString()
+	{
+		return this.Name+" owned by "+this.Owner;
+	}
 }

src/main/java/StevenDimDoors/mod_pocketDim/helpers/ChunkLoaderHelper.java

@@ -1,47 +1,91 @@
 package StevenDimDoors.mod_pocketDim.helpers;
 
-import StevenDimDoors.mod_pocketDim.IChunkLoader;
-import StevenDimDoors.mod_pocketDim.mod_pocketDim;
-import StevenDimDoors.mod_pocketDim.core.NewDimData;
-import StevenDimDoors.mod_pocketDim.core.PocketManager;
-
-import cpw.mods.fml.common.event.FMLServerStartingEvent;
-
 import java.io.File;
 import java.util.List;
 
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.world.ChunkCoordIntPair;
 import net.minecraft.world.World;
 import net.minecraftforge.common.DimensionManager;
 import net.minecraftforge.common.ForgeChunkManager;
 import net.minecraftforge.common.ForgeChunkManager.LoadingCallback;
 import net.minecraftforge.common.ForgeChunkManager.Ticket;
+import net.minecraftforge.common.ForgeChunkManager.Type;
+import StevenDimDoors.experimental.BoundingBox;
+import StevenDimDoors.mod_pocketDim.IChunkLoader;
+import StevenDimDoors.mod_pocketDim.Point3D;
+import StevenDimDoors.mod_pocketDim.mod_pocketDim;
+import StevenDimDoors.mod_pocketDim.core.NewDimData;
+import StevenDimDoors.mod_pocketDim.core.PocketManager;
+import StevenDimDoors.mod_pocketDim.world.PocketBuilder;
+import cpw.mods.fml.common.event.FMLServerStartingEvent;
 
 public class ChunkLoaderHelper implements LoadingCallback 
 {
-
 	@Override
 	public void ticketsLoaded(List<Ticket> tickets, World world) 
 	{
 		for (Ticket ticket : tickets) 
 		{
-			int goldDimDoorX = ticket.getModData().getInteger("goldDimDoorX");
-			int goldDimDoorY = ticket.getModData().getInteger("goldDimDoorY");
-			int goldDimDoorZ = ticket.getModData().getInteger("goldDimDoorZ");
-			if(world.getBlockId(goldDimDoorX, goldDimDoorY, goldDimDoorZ) != mod_pocketDim.properties.GoldenDimensionalDoorID)
+			boolean loaded = false;
+			int x = ticket.getModData().getInteger("goldDimDoorX");
+			int y = ticket.getModData().getInteger("goldDimDoorY");
+			int z = ticket.getModData().getInteger("goldDimDoorZ");
+
+			if (world.getBlockId(x, y, z) == mod_pocketDim.properties.GoldenDimensionalDoorID)
+			{
+				IChunkLoader loader = (IChunkLoader) world.getBlockTileEntity(x, y, z);
+				if (!loader.isInitialized())
+				{
+					loader.initialize(ticket);
+					loaded = true;
+				}
+			}
+			if (!loaded)
 			{
 				ForgeChunkManager.releaseTicket(ticket);
 			}
-			else
-			{
-				IChunkLoader tile = (IChunkLoader) world.getBlockTileEntity(goldDimDoorX, goldDimDoorY, goldDimDoorZ);
-				tile.forceChunkLoading(ticket,goldDimDoorX,goldDimDoorZ);
-			}			
 		}
 	}
 
-	public static void loadChunkForcedWorlds(FMLServerStartingEvent event)
+	public static Ticket createTicket(int x, int y, int z, World world)
 	{
-		for(NewDimData data : PocketManager.getDimensions())
+		NBTTagCompound data;
+		Ticket ticket = ForgeChunkManager.requestTicket(mod_pocketDim.instance, world, Type.NORMAL);
+		if (ticket != null)
+		{
+			data = ticket.getModData();
+			data.setInteger("goldDimDoorX", x);
+			data.setInteger("goldDimDoorY", y);
+			data.setInteger("goldDimDoorZ", z);
+		}
+		return ticket;
+	}
+
+	public static void forcePocketChunks(NewDimData pocket, Ticket ticket)
+	{
+		BoundingBox bounds = PocketBuilder.calculateDefaultBounds(pocket);
+		Point3D minCorner = bounds.minCorner();
+		Point3D maxCorner = bounds.maxCorner();
+		int minX = minCorner.getX() >> 4;
+		int minZ = minCorner.getZ() >> 4;
+		int maxX = maxCorner.getX() >> 4;
+		int maxZ = maxCorner.getZ() >> 4;
+		int chunkX;
+		int chunkZ;
+
+		for (chunkX = minX; chunkX <= maxX; chunkX++)
+		{
+			for (chunkZ = minZ; chunkZ <= maxZ; chunkZ++)
+			{
+				ForgeChunkManager.forceChunk(ticket, new ChunkCoordIntPair(chunkX, chunkZ));
+			}
+		}
+	}
+
+	public static void loadForcedChunkWorlds(FMLServerStartingEvent event)
+	{
+		for (NewDimData data : PocketManager.getDimensions())
 		{
 			if(data.isPocketDimension())
 			{

src/main/java/StevenDimDoors/mod_pocketDim/helpers/Compactor.java

@@ -6,10 +6,10 @@ import java.io.IOException;
 import java.util.Collection;
 import java.util.Comparator;
 import java.util.HashSet;
-
 import StevenDimDoors.mod_pocketDim.core.DimLink;
+import StevenDimDoors.mod_pocketDim.core.DimensionType;
 import StevenDimDoors.mod_pocketDim.core.IDimRegistrationCallback;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.util.Point4D;
 import StevenDimDoors.mod_pocketDim.watcher.ClientLinkData;
@@ -68,19 +68,20 @@ public class Compactor
 		{
 			int id = input.readInt();
 			int rootID = input.readInt();
+			DimensionType type = DimensionType.getTypeFromIndex(input.readInt());
 			
 			if (rootIDs.add(rootID))
 			{
-				callback.registerDimension(rootID, rootID);
+				callback.registerDimension(rootID, rootID, type);
 			}
 			// Don't check if (id != rootID) - we want to retrieve the reference anyway
-			NewDimData dimension = callback.registerDimension(id, rootID);
+			NewDimData dimension = callback.registerDimension(id, rootID, type);
 			int linkCount = input.readInt();
 			for (int h = 0; h < linkCount; h++)
 			{
 				ClientLinkData link = ClientLinkData.read(input);
 				Point4D source = link.point;
-				dimension.createLink(source.getX(), source.getY(), source.getZ(), LinkTypes.CLIENT_SIDE,link.orientation);
+				dimension.createLink(source.getX(), source.getY(), source.getZ(), LinkType.CLIENT,0);
 			}
 		}
 	}

src/main/java/StevenDimDoors/mod_pocketDim/helpers/DeleteFolder.java

@@ -2,31 +2,33 @@ package StevenDimDoors.mod_pocketDim.helpers;
 
 import java.io.File;
 
-
 public class DeleteFolder
 {
-	public static boolean deleteFolder(File file)
+	public static boolean deleteFolder(File directory)
 	{
 		try
 		{
-			File[] files = file.listFiles();
-			
-			if(files==null)
+			File[] contents = directory.listFiles();
+			if (contents != null)
 			{
-				file.delete();
-				return true;
-			}
-			for(File inFile : files)
+				for (File entry : contents)
 				{
-				DeleteFolder.deleteFolder(inFile);
+					if (entry.isDirectory())
+					{
+						deleteFolder(entry);
 					}
-			
+					else
+					{
+						entry.delete();
+					}
+				}
+			}
+			return directory.delete();
 		}
 		catch (Exception e)
 		{
 			e.printStackTrace();
 			return false;
 		}
-		return true;
 	}
 }

src/main/java/StevenDimDoors/mod_pocketDim/helpers/DungeonHelper.java

@@ -16,13 +16,12 @@ import java.util.List;
 import java.util.Queue;
 import java.util.Random;
 import java.util.regex.Pattern;
-
 import net.minecraft.util.WeightedRandom;
 import net.minecraft.world.World;
 import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.config.DDProperties;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 import StevenDimDoors.mod_pocketDim.dungeon.DungeonData;
@@ -46,7 +45,7 @@ public class DungeonHelper
 	public static final String SCHEMATIC_FILE_EXTENSION = ".schematic";
 	
 	private static final String DEFAULT_ERROR_SCHEMATIC_PATH = "/schematics/core/somethingBroke.schematic";
-	private static final String DUNGEON_CREATION_GUIDE_SOURCE_PATH = "/mods/DimDoors/text/How_to_add_dungeons.txt";
+	private static final String DUNGEON_CREATION_GUIDE_SOURCE_PATH = "/assets/dimdoors/text/How_to_add_dungeons.txt";
 	private static final String BUNDLED_PACK_BASE_PATH = "/schematics/";
 	private static final String STANDARD_CONFIG_FILE_NAME = "rules.txt";
 	
@@ -264,7 +263,7 @@ public class DungeonHelper
 	{
 		//Create a link above the specified position. Link to a new pocket dimension.
 		NewDimData dimension = PocketManager.getDimensionData(world);
-		DimLink link = dimension.createLink(x, y + 1, z, LinkTypes.POCKET, 3);
+		DimLink link = dimension.createLink(x, y + 1, z, LinkType.POCKET, 3);
 
 		//Place a Warp Door linked to that pocket
 		ItemDimensionalDoor.placeDoorBlock(world, x, y, z, 3, mod_pocketDim.warpDoor);

src/main/java/StevenDimDoors/mod_pocketDim/helpers/PersonalPocketHelper.java

@@ -0,0 +1,6 @@
+package StevenDimDoors.mod_pocketDim.helpers;
+
+public class PersonalPocketHelper
+{
+
+}

src/main/java/StevenDimDoors/mod_pocketDim/helpers/yCoordHelper.java

@@ -214,13 +214,10 @@ public class yCoordHelper
 		for (int dx = -1; dx <= 1; dx++)
 		{
 			for (int dz = -1; dz <= 1; dz++)
-			{
-				if (!provider.chunkExists(chunkX + dx, chunkZ + dz))
 			{
 				provider.loadChunk(chunkX, chunkZ);
 			}
 		}
-		}
 		return target;
 	}
 

src/main/java/StevenDimDoors/mod_pocketDim/items/BaseItemDoor.java

@@ -2,6 +2,7 @@ package StevenDimDoors.mod_pocketDim.items;
 
 import java.util.HashMap;
 import java.util.List;
+
 import net.minecraft.block.Block;
 import net.minecraft.block.material.Material;
 import net.minecraft.client.renderer.texture.IconRegister;
@@ -23,9 +24,9 @@ import StevenDimDoors.mod_pocketDim.tileentities.TileEntityDimDoor;
 
 public abstract class BaseItemDoor extends ItemDoor
 {
-	// maps non-dimensional door items to their corresponding dimensional door
-	// item
-	private static HashMap<ItemDoor, BaseItemDoor> vanillaDoorMapping = new HashMap<ItemDoor, BaseItemDoor>();
+	// Maps non-dimensional door items to their corresponding dimensional door item
+	// Also maps dimensional door items to themselves for simplicity
+	private static HashMap<ItemDoor, BaseItemDoor> doorItemMapping = new HashMap<ItemDoor, BaseItemDoor>();
 	private static DDProperties properties = null;
 
 	/**
@@ -34,7 +35,7 @@ public abstract class BaseItemDoor extends ItemDoor
 	 * @param material
 	 * @param door
 	 */
-	public BaseItemDoor(int itemID, Material material, ItemDoor door)
+	public BaseItemDoor(int itemID, Material material, ItemDoor vanillaDoor)
 	{
 		super(itemID, material);
 		this.setMaxStackSize(64);
@@ -42,9 +43,10 @@ public abstract class BaseItemDoor extends ItemDoor
 		if (properties == null)
 			properties = DDProperties.instance();
 		
-		if(door!=null)
+		doorItemMapping.put(this, this);
+		if (vanillaDoor != null)
 		{
-			vanillaDoorMapping.put(door, this);
+			doorItemMapping.put(vanillaDoor, this);
 		}
 	}
 
@@ -64,7 +66,7 @@ public abstract class BaseItemDoor extends ItemDoor
 	 * 
 	 * @return
 	 */
-	protected abstract BaseDimDoor getDoortoItemMapping();
+	protected abstract BaseDimDoor getDoorBlock();
 
 	/**
 	 * Overriden here to remove vanilla block placement functionality from
@@ -73,23 +75,12 @@ public abstract class BaseItemDoor extends ItemDoor
 	@Override
 	public boolean onItemUse(ItemStack stack, EntityPlayer player, World world, int x, int y, int z, int side, float hitX, float hitY, float hitZ)
 	{
-		// TODO Auto-generated method stub
 		return false;
 	}
 
-	public static BaseDimDoor getDoorToPlace(Item item)
-	{
-		if (!(item instanceof BaseItemDoor))
-		{
-			item = BaseItemDoor.vanillaDoorMapping.get(item);
-		}
-		return ((BaseItemDoor) item).getDoortoItemMapping();
-	}
-
 	/**
-	 * Tries to place a door block, called in EventHookContainer
+	 * Tries to place a door as a dimensional door
 	 * 
-	 * @param doorBlock
 	 * @param stack
 	 * @param player
 	 * @param world
@@ -97,8 +88,6 @@ public abstract class BaseItemDoor extends ItemDoor
 	 * @param y
 	 * @param z
 	 * @param side
-	 * @param requireLink
-	 * @param reduceStack
 	 * @return
 	 */
 	public static boolean tryToPlaceDoor(ItemStack stack, EntityPlayer player, World world, int x, int y, int z, int side)
@@ -107,15 +96,20 @@ public abstract class BaseItemDoor extends ItemDoor
 		{
 			return false;
 		}
-		if (!(stack.getItem() instanceof ItemDoor))
+		// Retrieve the actual door type that we want to use here.
+		// It's okay if stack isn't an ItemDoor. In that case, the lookup will
+		// return null, just as if the item was an unrecognized door type.
+		BaseItemDoor mappedItem = doorItemMapping.get(stack.getItem());
+		if (mappedItem == null)
 		{
-			throw new IllegalArgumentException("The itemstack must correspond to some type of door");
+			return false;
 		}
-		if (BaseItemDoor.placeDoorOnBlock(getDoorToPlace(stack.getItem()), stack, player, world, x, y, z, side))
+		BaseDimDoor doorBlock = mappedItem.getDoorBlock();
+		if (BaseItemDoor.placeDoorOnBlock(doorBlock, stack, player, world, x, y, z, side))
 		{
 			return true;
 		}
-		return BaseItemDoor.placeDoorOnRift(getDoorToPlace(stack.getItem()), world, player, stack);
+		return BaseItemDoor.placeDoorOnRift(doorBlock, world, player, stack);
 	}
 
 	/**

src/main/java/StevenDimDoors/mod_pocketDim/items/ItemBlockDimWall.java

@@ -7,7 +7,7 @@ import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 
 public class ItemBlockDimWall extends ItemBlock
 {
-	private final static String[] subNames = {"Fabric of Reality", "Ancient Fabric"};
+	private final static String[] subNames = {"Fabric of Reality", "Ancient Fabric" , "Altered Fabric"};
 	
     public ItemBlockDimWall(int par1)
     {

src/main/java/StevenDimDoors/mod_pocketDim/items/ItemDDKey.java

@@ -0,0 +1,213 @@
+package StevenDimDoors.mod_pocketDim.items;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+import cpw.mods.fml.relauncher.Side;
+import cpw.mods.fml.relauncher.SideOnly;
+import net.minecraft.block.Block;
+import net.minecraft.client.renderer.texture.IconRegister;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.EnumAction;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTBase;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.nbt.NBTTagList;
+import net.minecraft.util.EnumMovingObjectType;
+import net.minecraft.util.MovingObjectPosition;
+import net.minecraft.util.StatCollector;
+import net.minecraft.world.World;
+import StevenDimDoors.mod_pocketDim.mod_pocketDim;
+import StevenDimDoors.mod_pocketDim.blocks.IDimDoor;
+import StevenDimDoors.mod_pocketDim.core.DDLock;
+import StevenDimDoors.mod_pocketDim.core.DimLink;
+import StevenDimDoors.mod_pocketDim.core.PocketManager;
+import StevenDimDoors.mod_pocketDim.watcher.ClientLinkData;
+
+public class ItemDDKey extends Item
+{
+	public static final int TIME_TO_UNLOCK = 30;
+
+	public ItemDDKey(int itemID)
+	{
+		super(itemID);
+		this.setCreativeTab(mod_pocketDim.dimDoorsCreativeTab);
+		this.setMaxStackSize(1);
+
+	}
+
+	public void onCreated(ItemStack par1ItemStack, World par2World, EntityPlayer par3EntityPlayer)
+	{
+
+	}
+
+	public void addInformation(ItemStack par1ItemStack, EntityPlayer par2EntityPlayer, List par3List, boolean par4)
+	{
+		if (DDLock.hasCreatedLock(par1ItemStack))
+		{
+			par3List.add("Bound");
+		}
+		else
+		{
+			par3List.add("Unbound");
+		}
+	}
+
+	@Override
+	public void registerIcons(IconRegister par1IconRegister)
+	{
+		this.itemIcon = par1IconRegister.registerIcon(mod_pocketDim.modid + ":" + this.getUnlocalizedName().replace("item.", ""));
+	}
+
+	@Override
+	@SideOnly(Side.CLIENT)
+	public boolean hasEffect(ItemStack par1ItemStack)
+	{
+		return !DDLock.hasCreatedLock(par1ItemStack);
+	}
+
+	public boolean onItemUse(ItemStack itemStack, EntityPlayer player, World par3World, int par4, int par5, int par6, int par7, float par8, float par9,
+			float par10)
+	{
+		player.setItemInUse(itemStack, this.getMaxItemUseDuration(itemStack));
+
+		return false;
+	}
+
+	public boolean onItemUseFirst(ItemStack itemStack, EntityPlayer player, World world, int x, int y, int z, int side, float playerX, float playerY,
+			float playerZ)
+	{
+		if (world.isRemote)
+		{
+			return false;
+		}
+
+		if (player.getItemInUse() != null)
+		{
+			return true;
+		}
+		int blockID = world.getBlockId(x, y, z);
+		// make sure we are dealing with a door
+		if (!(Block.blocksList[blockID] instanceof IDimDoor))
+		{
+			return false;
+		}
+
+		DimLink link = PocketManager.getLink(x, y, z, world);
+		// dont do anything to doors without links
+		if (link == null)
+		{
+			return false;
+		}
+
+		// what to do if the door has a lock already
+		if (link.hasLock())
+		{
+			if (link.doesKeyUnlock(itemStack))
+			{
+				if (link.getLockState())
+				{
+					world.playSoundAtEntity(player, mod_pocketDim.modid + ":keyUnlock", 1F, 1F);
+				}
+				else
+				{
+					world.playSoundAtEntity(player, mod_pocketDim.modid + ":keyLock", 1F, 1F);
+				}
+				PocketManager.getDimensionData(world).lock(link, !link.getLockState());
+				PocketManager.getLinkWatcher().update(new ClientLinkData(link));
+
+			}
+			else
+			{
+				world.playSoundAtEntity(player, mod_pocketDim.modid + ":doorLocked", 1F, 1F);
+			}
+		}
+		else
+		{
+			if (!DDLock.hasCreatedLock(itemStack))
+			{
+				world.playSoundAtEntity(player, mod_pocketDim.modid + ":keyLock", 1F, 1F);
+				PocketManager.getDimensionData(world).createLock(link, itemStack, world.rand.nextInt(Integer.MAX_VALUE));
+				PocketManager.getLinkWatcher().update(new ClientLinkData(link));
+			}
+		}
+		return false;
+	}
+
+	/**
+	 * Handle removal of locks here
+	 */
+	@Override
+	public void onPlayerStoppedUsing(ItemStack itemStack, World world, EntityPlayer player, int heldTime)
+	{
+		int j = this.getMaxItemUseDuration(itemStack) - heldTime;
+		if (j >= TIME_TO_UNLOCK)
+		{
+			//Raytrace to make sure we are still looking at a door
+			MovingObjectPosition pos = getMovingObjectPositionFromPlayer(player.worldObj, player, true);
+			if (pos != null && pos.typeOfHit == EnumMovingObjectType.TILE)
+			{
+				//make sure we have a link and it has a lock
+				DimLink link = PocketManager.getLink(pos.blockX, pos.blockY, pos.blockZ, player.worldObj);
+				if (link != null && link.hasLock())
+				{
+					//make sure the given key is able to access the lock
+					if (link.doesKeyUnlock(itemStack) && !world.isRemote)
+					{
+						PocketManager.getDimensionData(world).removeLock(link, itemStack);
+						world.playSoundAtEntity(player, mod_pocketDim.modid + ":doorLockRemoved", 1F, 1F);
+
+					}
+				}
+			}
+		}
+		player.clearItemInUse();
+
+	}
+
+	/**
+	 * Raytrace to make sure we are still looking at the right block while preparing to remove the lock
+	 */
+	@Override
+	public void onUsingItemTick(ItemStack stack, EntityPlayer player, int count)
+	{
+		// no need to check every tick, twice a second instead
+		if (count % 10 == 0)
+		{
+			MovingObjectPosition pos = getMovingObjectPositionFromPlayer(player.worldObj, player, true);
+			if (pos != null && pos.typeOfHit == EnumMovingObjectType.TILE)
+			{
+				DimLink link = PocketManager.getLink(pos.blockX, pos.blockY, pos.blockZ, player.worldObj);
+				if (link != null && link.hasLock())
+				{
+					if (link.doesKeyUnlock(stack))
+					{
+						return;
+					}
+				}
+			}
+			player.clearItemInUse();
+		}
+	}
+
+	public EnumAction getItemUseAction(ItemStack par1ItemStack)
+	{
+		return EnumAction.bow;
+	}
+
+	public ItemStack onEaten(ItemStack par1ItemStack, World par2World, EntityPlayer par3EntityPlayer)
+	{
+		return par1ItemStack;
+	}
+
+	public int getMaxItemUseDuration(ItemStack par1ItemStack)
+	{
+		return 72000;
+	}
+
+	public String getItemStackDisplayName(ItemStack par1ItemStack)
+	{
+		return StatCollector.translateToLocal(this.getUnlocalizedName(par1ItemStack));
+	}
+}

src/main/java/StevenDimDoors/mod_pocketDim/items/ItemDimensionalDoor.java

@@ -28,7 +28,7 @@ public class ItemDimensionalDoor extends BaseItemDoor
 	}
 
 	@Override
-	protected BaseDimDoor getDoortoItemMapping()
+	protected BaseDimDoor getDoorBlock()
 	{
 		return (BaseDimDoor) mod_pocketDim.dimensionalDoor;
 	}

src/main/java/StevenDimDoors/mod_pocketDim/items/ItemGoldDimDoor.java

@@ -28,7 +28,7 @@ public class ItemGoldDimDoor extends BaseItemDoor
 	}
 
 	@Override
-	protected BaseDimDoor getDoortoItemMapping()
+	protected BaseDimDoor getDoorBlock()
 	{
 		return (BaseDimDoor) mod_pocketDim.goldenDimensionalDoor;
 	}

src/main/java/StevenDimDoors/mod_pocketDim/items/ItemGoldDoor.java

@@ -15,6 +15,7 @@ public class ItemGoldDoor extends ItemDoor
 	public ItemGoldDoor(int par1, Material par2Material) 
 	{
 		super(par1, par2Material);
+		this.setMaxStackSize(16);
 	}
 
 	@Override

src/main/java/StevenDimDoors/mod_pocketDim/items/ItemPersonalDoor.java

@@ -0,0 +1,35 @@
+package StevenDimDoors.mod_pocketDim.items;
+
+import java.util.List;
+
+import net.minecraft.block.material.Material;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemDoor;
+import net.minecraft.item.ItemStack;
+import net.minecraft.world.World;
+import StevenDimDoors.mod_pocketDim.mod_pocketDim;
+import StevenDimDoors.mod_pocketDim.blocks.BaseDimDoor;
+
+public class ItemPersonalDoor extends BaseItemDoor
+{
+	public ItemPersonalDoor(int itemID, Material material, ItemDoor door)
+    {
+  	  super(itemID, material, door);
+    }
+
+	@SuppressWarnings({ "rawtypes", "unchecked" })
+	@Override
+	public void addInformation(ItemStack par1ItemStack, EntityPlayer par2EntityPlayer, List par3List, boolean par4)
+	{
+		par3List.add("Creates a pathway to");
+		par3List.add("Your personal pocket");
+
+	
+	}
+
+	@Override
+	protected BaseDimDoor getDoorBlock()
+	{
+		return (BaseDimDoor) mod_pocketDim.personalDimDoor;
+	}
+}

src/main/java/StevenDimDoors/mod_pocketDim/items/ItemQuartzDoor.java

@@ -0,0 +1,58 @@
+package StevenDimDoors.mod_pocketDim.items;
+
+import StevenDimDoors.mod_pocketDim.mod_pocketDim;
+import net.minecraft.block.Block;
+import net.minecraft.block.material.Material;
+import net.minecraft.client.renderer.texture.IconRegister;
+import net.minecraft.entity.player.EntityPlayer;
+import net.minecraft.item.ItemDoor;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.MathHelper;
+import net.minecraft.world.World;
+
+public class ItemQuartzDoor extends ItemDoor
+{
+	public ItemQuartzDoor(int par1, Material par2Material) 
+	{
+		super(par1, par2Material);
+	}
+
+	@Override
+	public void registerIcons(IconRegister par1IconRegister)
+	{
+		this.itemIcon = par1IconRegister.registerIcon(mod_pocketDim.modid + ":" + this.getUnlocalizedName().replace("item.", ""));
+	}
+
+	@Override
+	public boolean onItemUse(ItemStack par1ItemStack, EntityPlayer par2EntityPlayer, World par3World, int par4, int par5, int par6, int par7, float par8, float par9, float par10)
+	{
+		if (par7 != 1)
+		{
+			return false;
+		}
+		else
+		{
+			++par5;
+			Block block = mod_pocketDim.quartzDoor;
+
+			if (par2EntityPlayer.canPlayerEdit(par4, par5, par6, par7, par1ItemStack) && par2EntityPlayer.canPlayerEdit(par4, par5 + 1, par6, par7, par1ItemStack))
+			{
+				if (!block.canPlaceBlockAt(par3World, par4, par5, par6))
+				{
+					return false;
+				}
+				else
+				{
+					int i1 = MathHelper.floor_double((par2EntityPlayer.rotationYaw + 180.0F) * 4.0F / 360.0F - 0.5D) & 3;
+					placeDoorBlock(par3World, par4, par5, par6, i1, block);
+					--par1ItemStack.stackSize;
+					return true;
+				}
+			}
+			else
+			{
+				return false;
+			}
+		}
+	}
+}

src/main/java/StevenDimDoors/mod_pocketDim/items/ItemRiftSignature.java

@@ -1,7 +1,6 @@
 package StevenDimDoors.mod_pocketDim.items;
 
 import java.util.List;
-
 import net.minecraft.block.Block;
 import net.minecraft.client.renderer.texture.IconRegister;
 import net.minecraft.entity.player.EntityPlayer;
@@ -14,7 +13,7 @@ import net.minecraftforge.common.DimensionManager;
 import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.blocks.BaseDimDoor;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 import StevenDimDoors.mod_pocketDim.util.Point4D;
@@ -34,12 +33,13 @@ public class ItemRiftSignature extends Item
 
 	@SideOnly(Side.CLIENT)
 	@Override
-	public boolean hasEffect(ItemStack stack)
+	public boolean hasEffect(ItemStack stack, int pass)
 	{
 		//Make the item glow if it has one endpoint stored
 		return (stack.getItemDamage() != 0);
 	}
 
+	@Override
 	public void registerIcons(IconRegister par1IconRegister)
 	{
 		this.itemIcon = par1IconRegister.registerIcon(mod_pocketDim.modid + ":" + this.getUnlocalizedName().replace("item.", ""));
@@ -60,50 +60,47 @@ public class ItemRiftSignature extends Item
 			return false;
 		}
 		
-		y += 2; //Increase y by 2 to place the rift at head level
-		if (!player.canPlayerEdit(x, y, z, side, stack))
+		//Increase y by 2 to place the rift at head level
+		int adjustedY = adjustYForSpecialBlocks(world, x, y + 2, z);
+		if (!player.canPlayerEdit(x, adjustedY, z, side, stack))
 		{
 			return true;
 		}
-		int adjustedY = adjustYForSpecialBlocks(world,x,y,z);
 		Point4DOrientation source = getSource(stack);
-		int orientation = MathHelper.floor_double((double) ((player.rotationYaw + 180.0F) * 4.0F / 360.0F) - 0.5D) & 3;
+		int orientation = MathHelper.floor_double(((player.rotationYaw + 180.0F) * 4.0F / 360.0F) - 0.5D) & 3;
 		if (source != null)
 		{
-			//The link was used before and already has an endpoint stored. Create links connecting the two endpoints.
+			// The link was used before and already has an endpoint stored.
+			// Create links connecting the two endpoints.
 			NewDimData sourceDimension = PocketManager.getDimensionData(source.getDimension());
 			NewDimData destinationDimension = PocketManager.getDimensionData(world);
-			DimLink link = sourceDimension.createLink(source.getX(), source.getY(), source.getZ(), LinkTypes.NORMAL,source.getOrientation());
-			DimLink reverse = destinationDimension.createLink(x, adjustedY, z, LinkTypes.NORMAL,orientation);
-			destinationDimension.setDestination(link, x, adjustedY, z);
-			sourceDimension.setDestination(reverse, source.getX(), source.getY(), source.getZ());
 
-			//Try placing a rift at the destination point
-			if (!mod_pocketDim.blockRift.isBlockImmune(world, x, adjustedY, z))
-			{
-				world.setBlock(x, adjustedY, z, mod_pocketDim.blockRift.blockID);
-			}
+			DimLink link = sourceDimension.createLink(source.getX(), source.getY(), source.getZ(), LinkType.NORMAL,source.getOrientation());
+			DimLink reverse = destinationDimension.createLink(x, adjustedY, z, LinkType.NORMAL,orientation);
 
-			//Try placing a rift at the source point, but check if its world is loaded first
+			destinationDimension.setLinkDestination(link, x, adjustedY, z);
+			sourceDimension.setLinkDestination(reverse, source.getX(), source.getY(), source.getZ());
+
+			// Try placing a rift at the destination point
+			mod_pocketDim.blockRift.tryPlacingRift(world, x, adjustedY, z);
+
+			// Try placing a rift at the source point
+			// We don't need to check if sourceWorld is null - that's already handled.
 			World sourceWorld = DimensionManager.getWorld(sourceDimension.id());
-			if (sourceWorld != null &&
-				!mod_pocketDim.blockRift.isBlockImmune(sourceWorld, source.getX(), source.getY(), source.getZ()))
-			{
-				sourceWorld.setBlock(source.getX(), source.getY(), source.getZ(), mod_pocketDim.blockRift.blockID);
-			}
+			mod_pocketDim.blockRift.tryPlacingRift(sourceWorld, source.getX(), source.getY(), source.getZ());
 
 			if (!player.capabilities.isCreativeMode)
 			{
 				stack.stackSize--;
 			}
 			clearSource(stack);
-			mod_pocketDim.sendChat(player,("Rift Created"));
-			world.playSoundAtEntity(player,mod_pocketDim.modid+":riftEnd", 0.6f, 1);
+			mod_pocketDim.sendChat(player, "Rift Created");
+			world.playSoundAtEntity(player, mod_pocketDim.modid + ":riftEnd", 0.6f, 1);
 		}
 		else
 		{
 			//The link signature has not been used. Store its current target as the first location. 
-			setSource(stack, x, adjustedY, z,orientation, PocketManager.getDimensionData(world));
+			setSource(stack, x, adjustedY, z, orientation, PocketManager.createDimensionData(world));
 			mod_pocketDim.sendChat(player,("Location Stored in Rift Signature"));
 			world.playSoundAtEntity(player,mod_pocketDim.modid+":riftStart", 0.6f, 1);
 		}
@@ -113,6 +110,7 @@ public class ItemRiftSignature extends Item
 	/**
 	 * allows items to add custom lines of information to the mouseover description
 	 */
+	@Override
 	@SuppressWarnings({ "unchecked", "rawtypes" })
 	@SideOnly(Side.CLIENT)
 	public void addInformation(ItemStack par1ItemStack, EntityPlayer par2EntityPlayer, List par3List, boolean par4)
@@ -140,26 +138,28 @@ public class ItemRiftSignature extends Item
 	 */
 	public static int adjustYForSpecialBlocks(World world, int x, int y, int z)
 	{
-		y=y-2;//get the block the player actually clicked on
-		Block block = Block.blocksList[world.getBlockId(x, y, z)];
-		if(block==null)
+		int targetY = y - 2; // Get the block the player actually clicked on
+		Block block = Block.blocksList[world.getBlockId(x, targetY, z)];
+		if (block == null)
 		{
-			return y+2;
+			return targetY + 2;
 		}
-		if(block.isBlockReplaceable(world, x, y, z))
+		if (block.isBlockReplaceable(world, x, targetY, z))
 		{
-			return y+1;//move block placement down (-2+1) one so its directly over things like snow
+			return targetY + 1; // Move block placement down (-2+1) one so its directly over things like snow
 		}
-		if(block instanceof BaseDimDoor)
+		if (block instanceof BaseDimDoor)
 		{
-			if(world.getBlockId(x, y-1, z)==block.blockID&&world.getBlockMetadata(x, y, z)==8)
+			if (((BaseDimDoor) block).isUpperDoorBlock(world.getBlockMetadata(x, targetY, z)))
 			{
-				return y;//move rift placement down two so its in the right place on the door. 
+				return targetY; // Move rift placement down two so its in the right place on the door. 
 			}
-			return y+1;
+			// Move rift placement down one so its in the right place on the door.
+			return targetY + 1;
 		}
-		return y+2;
+		return targetY + 2;
 	}
+	
 	public static void setSource(ItemStack itemStack, int x, int y, int z, int orientation, NewDimData dimension)
 	{
 		NBTTagCompound tag = new NBTTagCompound();
@@ -200,11 +200,12 @@ public class ItemRiftSignature extends Item
 				Integer orientation = tag.getInteger("orientation");
 				Integer dimID = tag.getInteger("linkDimID");
 
-				if (x != null && y != null && z != null && dimID != null)
+				if (x != null && y != null && z != null && orientation != null && dimID != null)
 				{
-					return new Point4DOrientation(x, y, z,orientation, dimID);
+					return new Point4DOrientation(x, y, z, orientation, dimID);
 				}
 			}
+			// Mark the item as uninitialized if its source couldn't be read
 			itemStack.setItemDamage(0);
 		}
 		return null;
@@ -214,10 +215,11 @@ public class ItemRiftSignature extends Item
 	{
 		private Point4D point;
 		private int orientation;
+		
 		Point4DOrientation(int x, int y, int z, int orientation, int dimID)
 		{
-			this.point= new Point4D(x,y,z,dimID);
-			this.orientation=orientation;
+			this.point = new Point4D(x, y, z, dimID);
+			this.orientation = orientation;
 		}
 		
 		int getX()
@@ -239,10 +241,16 @@ public class ItemRiftSignature extends Item
 		{
 			return point.getDimension();
 		}
+		
 		int getOrientation()
 		{
 			return orientation;
 		}
+		
+		Point4D getPoint()
+		{
+			return point;
+		}
 	}
 }
 

src/main/java/StevenDimDoors/mod_pocketDim/items/ItemStabilizedRiftSignature.java

@@ -1,7 +1,6 @@
 package StevenDimDoors.mod_pocketDim.items;
 
 import java.util.List;
-
 import net.minecraft.client.renderer.texture.IconRegister;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.item.Item;
@@ -11,10 +10,9 @@ import net.minecraft.world.World;
 import net.minecraftforge.common.DimensionManager;
 import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
-import StevenDimDoors.mod_pocketDim.util.Point4D;
 import cpw.mods.fml.relauncher.Side;
 import cpw.mods.fml.relauncher.SideOnly;
 
@@ -40,69 +38,124 @@ public class ItemStabilizedRiftSignature extends ItemRiftSignature
 			return false;
 		}
 
-		// We don't check for replaceable blocks. The user can deal with that. <_<
-		y += 2; //Increase y by 2 to place the rift at head level
-		if (!player.canPlayerEdit(x, y, z, side, stack))
+		// Adjust Y so the rift is at head level, depending on the presence of certain blocks
+		int adjustedY = adjustYForSpecialBlocks(world, x, y + 2, z);
+		if (!player.canPlayerEdit(x, adjustedY, z, side, stack))
 		{
 			return true;
 		}
-		Point4DOrientation source = getSource(stack);
-		int adjustedY = adjustYForSpecialBlocks(world,x,y,z);
+		int orientation = MathHelper.floor_double((player.rotationYaw + 180.0F) * 4.0F / 360.0F - 0.5D) & 3;
 		
 		// Check if the Stabilized Rift Signature has been initialized
-		int orientation = MathHelper.floor_double((player.rotationYaw + 180.0F) * 4.0F / 360.0F - 0.5D) & 3;
+		Point4DOrientation source = getSource(stack);
 		if (source != null)
 		{
-			// Yes, it's initialized. Check if the player is in creative
-			// or if the player can pay with Stable Fabric to create a rift.
-			if (!player.capabilities.isCreativeMode && !player.inventory.hasItem(mod_pocketDim.itemStableFabric.itemID))
+
+			// Yes, it's initialized.
+			NewDimData sourceDimension = PocketManager.getDimensionData(source.getDimension());
+			NewDimData destinationDimension = PocketManager.createDimensionData(world);
+			DimLink reverse = destinationDimension.getLink(x, adjustedY, z);
+			DimLink link;
+			
+			// Check whether the SRS is being used to restore one of its previous
+			// link pairs. In other words, the SRS is being used on a location
+			// that already has a link pointing to the SRS's source, with the
+			// intention of overwriting the source-side link to point there.
+			// Those benign redirection operations will be handled for free.
+			
+			if (reverse != null && source.getPoint().equals(reverse.destination()))
 			{
-				mod_pocketDim.sendChat(player, "You don't have any Stable Fabric!");
+				// Only the source-to-destination link is needed.
+				link = sourceDimension.createLink(source.getX(), source.getY(), source.getZ(), LinkType.NORMAL, source.getOrientation());
+				destinationDimension.setLinkDestination(link, x, adjustedY, z);
+			}
+			else
+			{
+				// Check if the player is in creative mode,
+				// or if the player can pay with an Ender Pearl to create a rift.
+				if (!player.capabilities.isCreativeMode &&
+						!player.inventory.consumeInventoryItem(Item.enderPearl.itemID))
+				{
+					mod_pocketDim.sendChat(player, "You don't have any Ender Pearls!");
 					// I won't do this, but this is the chance to localize chat 
 					// messages sent to the player; look at ChatMessageComponent 
 					// and how MFR does it with items like the safari net launcher
 					return true;
 				}
 	
-			//The link was used before and already has an endpoint stored. Create links connecting the two endpoints.
-			NewDimData sourceDimension = PocketManager.getDimensionData(source.getDimension());
-			NewDimData destinationDimension = PocketManager.getDimensionData(world);
-			DimLink link = sourceDimension.createLink(source.getX(), source.getY(), source.getZ(), LinkTypes.NORMAL,source.getOrientation());
-			DimLink reverse = destinationDimension.createLink(x, adjustedY, z, LinkTypes.NORMAL,orientation);
-			destinationDimension.setDestination(link, x, adjustedY, z);
-			sourceDimension.setDestination(reverse, source.getX(), source.getY(), source.getZ());
+				// Create links connecting the two endpoints.
+				link = sourceDimension.createLink(source.getX(), source.getY(), source.getZ(), LinkType.NORMAL, source.getOrientation());
+				reverse = destinationDimension.createLink(x, adjustedY, z, LinkType.NORMAL, orientation);
+				destinationDimension.setLinkDestination(link, x, adjustedY, z);
+				sourceDimension.setLinkDestination(reverse, source.getX(), source.getY(), source.getZ());
 	
-			//Try placing a rift at the destination point
-			if (!mod_pocketDim.blockRift.isBlockImmune(world, x, adjustedY, z))
-			{
-				world.setBlock(x, adjustedY, z, mod_pocketDim.blockRift.blockID);
+				// Try placing a rift at the destination point
+				mod_pocketDim.blockRift.tryPlacingRift(world, x, adjustedY, z);
 			}
 			
-			//Try placing a rift at the source point, but check if its world is loaded first
+			// Try placing a rift at the source point
+			// We don't need to check if sourceWorld is null - that's already handled.
 			World sourceWorld = DimensionManager.getWorld(sourceDimension.id());
-			if (sourceWorld != null &&
-				!mod_pocketDim.blockRift.isBlockImmune(sourceWorld, source.getX(), source.getY(), source.getZ()))
-			{
-				sourceWorld.setBlock(source.getX(), source.getY(), source.getZ(), mod_pocketDim.blockRift.blockID);
-			}
 			
-			if (!player.capabilities.isCreativeMode)
-			{
-				player.inventory.consumeInventoryItem(mod_pocketDim.itemStableFabric.itemID);
-			}
-			mod_pocketDim.sendChat(player,"Rift Created");
-			world.playSoundAtEntity(player,"mods.DimDoors.sfx.riftEnd", 0.6f, 1);
+			mod_pocketDim.blockRift.tryPlacingRift(sourceWorld, source.getX(), source.getY(), source.getZ());
+			mod_pocketDim.sendChat(player, "Rift Created");
+			world.playSoundAtEntity(player, "mods.DimDoors.sfx.riftEnd", 0.6f, 1);
 		}
 		else
 		{
-			//The link signature has not been used. Store its current target as the first location. 
-			setSource(stack, x, adjustedY, z, orientation, PocketManager.getDimensionData(world));
-			mod_pocketDim.sendChat(player,"Location Stored in Stabilized Rift Signature");
-			world.playSoundAtEntity(player,"mods.DimDoors.sfx.riftStart", 0.6f, 1);
+			// The link signature has not been used. Store its current target as the first location. 
+			setSource(stack, x, adjustedY, z, orientation, PocketManager.createDimensionData(world));
+			mod_pocketDim.sendChat(player, "Location Stored in Stabilized Rift Signature");
+			world.playSoundAtEntity(player, "mods.DimDoors.sfx.riftStart", 0.6f, 1);
 		}
 		return true;
 	}
 
+	public static boolean useFromDispenser(ItemStack stack, World world, int x, int y, int z)
+	{
+		// Stabilized Rift Signatures can only be used from dispensers to restore
+		// a previous link pair. The operation would be free for a player, so
+		// dispensers can also perform it for free. Otherwise, the item does nothing.
+		if (world.isRemote)
+		{
+			return false;
+		}
+		
+		// Adjust Y so the rift is at head level, depending on the presence of certain blocks
+		int adjustedY = adjustYForSpecialBlocks(world, x, y + 2, z);
+		Point4DOrientation source = getSource(stack);
+		
+		// The SRS must have been initialized
+		if (source != null)
+		{
+			NewDimData sourceDimension = PocketManager.getDimensionData(source.getDimension());
+			NewDimData destinationDimension = PocketManager.createDimensionData(world);
+			DimLink reverse = destinationDimension.getLink(x, adjustedY, z);
+			DimLink link;
+			
+			// Check whether the SRS is being used to restore one of its previous
+			// link pairs. In other words, the SRS is being used on a location
+			// that already has a link pointing to the SRS's source, with the
+			// intention of overwriting the source-side link to point there.
+			if (reverse != null && source.getPoint().equals(reverse.destination()))
+			{
+				// Only the source-to-destination link is needed.
+				link = sourceDimension.createLink(source.getX(), source.getY(), source.getZ(), LinkType.NORMAL, source.getOrientation());
+				destinationDimension.setLinkDestination(link, x, adjustedY, z);
+				
+				// Try placing a rift at the source point
+				// We don't need to check if sourceWorld is null - that's already handled.
+				World sourceWorld = DimensionManager.getWorld(sourceDimension.id());
+				mod_pocketDim.blockRift.tryPlacingRift(sourceWorld, source.getX(), source.getY(), source.getZ());
+				
+				// This call doesn't seem to be working...
+				world.playSoundEffect(x + 0.5, adjustedY + 0.5, z + 0.5, "mods.DimDoors.sfx.riftEnd", 0.6f, 1);
+				return true;
+			}
+		}
+		return false;
+	}
+
 	/**
 	 * allows items to add custom lines of information to the mouseover description
 	 */

src/main/java/StevenDimDoors/mod_pocketDim/items/ItemUnstableDoor.java

@@ -25,7 +25,7 @@ public class ItemUnstableDoor extends BaseItemDoor
     }
     
     @Override
-    protected BaseDimDoor getDoortoItemMapping()
+    protected BaseDimDoor getDoorBlock()
 	{
 		return (BaseDimDoor) mod_pocketDim.unstableDoor;
 	}

src/main/java/StevenDimDoors/mod_pocketDim/items/ItemWarpDoor.java

@@ -28,7 +28,7 @@ public class ItemWarpDoor extends BaseItemDoor
 	}
     
 	@Override
-	protected BaseDimDoor getDoortoItemMapping()
+	protected BaseDimDoor getDoorBlock()
 	{
 		return (BaseDimDoor) mod_pocketDim.warpDoor;
 	}

src/main/java/StevenDimDoors/mod_pocketDim/items/behaviors/DispenserBehaviorStabilizedRS.java

@@ -0,0 +1,42 @@
+package StevenDimDoors.mod_pocketDim.items.behaviors;
+
+import net.minecraft.block.BlockDispenser;
+import net.minecraft.dispenser.BehaviorDefaultDispenseItem;
+import net.minecraft.dispenser.IBlockSource;
+import net.minecraft.item.ItemStack;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.world.World;
+import StevenDimDoors.mod_pocketDim.items.ItemStabilizedRiftSignature;
+
+public class DispenserBehaviorStabilizedRS extends BehaviorDefaultDispenseItem
+{
+    @Override
+	public ItemStack dispenseStack(IBlockSource dispenser, ItemStack stack)
+    {
+    	// Search for a non-air block up to 3 blocks in front of a dispenser.
+    	// If it's found, call ItemStabilizedRiftSignature.useFromDispenser().
+        int x = dispenser.getXInt();
+        int y = dispenser.getYInt();
+        int z = dispenser.getZInt();
+        EnumFacing facing = BlockDispenser.getFacing(dispenser.getBlockMetadata());
+        int dx = facing.getFrontOffsetX();
+        int dy = facing.getFrontOffsetY();
+        int dz = facing.getFrontOffsetZ();
+        World world = dispenser.getWorld();
+        
+        for (int k = 1; k <= 3; k++)
+        {
+        	x += dx;
+        	y += dy;
+        	z += dz;
+        	if (!world.isAirBlock(x, y, z))
+        	{
+        		// Found a block. Activate the item.
+        		ItemStabilizedRiftSignature.useFromDispenser(stack, world, x, y, z);
+        		break;
+        	}
+        }
+        // The item stack isn't modified
+        return stack;
+    }
+}

src/main/java/StevenDimDoors/mod_pocketDim/items/itemRiftRemover.java

@@ -54,7 +54,7 @@ public class itemRiftRemover extends Item
 			int hx = hit.blockX;
 			int hy = hit.blockY;
 			int hz = hit.blockZ;
-			NewDimData dimension = PocketManager.getDimensionData(world);
+			NewDimData dimension = PocketManager.createDimensionData(world);
 			DimLink link = dimension.getLink(hx, hy, hz);
 			if (world.getBlockId(hx, hy, hz) == mod_pocketDim.blockRift.blockID && link != null &&
 				player.canPlayerEdit(hx, hy, hz, hit.sideHit, stack))
@@ -85,7 +85,7 @@ public class itemRiftRemover extends Item
 			 y = hit.blockY;
 			 z = hit.blockZ;
 			 
-			 NewDimData dimension = PocketManager.getDimensionData(world);
+			 NewDimData dimension = PocketManager.createDimensionData(world);
 			 DimLink link = dimension.getLink(x, y, z);
 			 if (world.getBlockId(x, y, z) == mod_pocketDim.blockRift.blockID && link != null &&
 				player.canPlayerEdit(x, y, z, side, stack))

src/main/java/StevenDimDoors/mod_pocketDim/mod_pocketDim.java

@@ -1,7 +1,6 @@
 package StevenDimDoors.mod_pocketDim;
 
 import java.io.File;
-
 import net.minecraft.block.Block;
 import net.minecraft.block.material.Material;
 import net.minecraft.creativetab.CreativeTabs;
@@ -19,10 +18,12 @@ import net.minecraftforge.common.MinecraftForge;
 import StevenDimDoors.mod_pocketDim.blocks.BlockDimWall;
 import StevenDimDoors.mod_pocketDim.blocks.BlockDimWallPerm;
 import StevenDimDoors.mod_pocketDim.blocks.BlockDoorGold;
+import StevenDimDoors.mod_pocketDim.blocks.BlockDoorQuartz;
 import StevenDimDoors.mod_pocketDim.blocks.BlockGoldDimDoor;
 import StevenDimDoors.mod_pocketDim.blocks.BlockLimbo;
 import StevenDimDoors.mod_pocketDim.blocks.BlockRift;
 import StevenDimDoors.mod_pocketDim.blocks.DimensionalDoor;
+import StevenDimDoors.mod_pocketDim.blocks.PersonalDimDoor;
 import StevenDimDoors.mod_pocketDim.blocks.TransTrapdoor;
 import StevenDimDoors.mod_pocketDim.blocks.TransientDoor;
 import StevenDimDoors.mod_pocketDim.blocks.UnstableDoor;
@@ -30,7 +31,6 @@ import StevenDimDoors.mod_pocketDim.blocks.WarpDoor;
 import StevenDimDoors.mod_pocketDim.commands.CommandCreateDungeonRift;
 import StevenDimDoors.mod_pocketDim.commands.CommandCreatePocket;
 import StevenDimDoors.mod_pocketDim.commands.CommandCreateRandomRift;
-import StevenDimDoors.mod_pocketDim.commands.CommandDeleteAllLinks;
 import StevenDimDoors.mod_pocketDim.commands.CommandDeleteRifts;
 import StevenDimDoors.mod_pocketDim.commands.CommandExportDungeon;
 import StevenDimDoors.mod_pocketDim.commands.CommandListDungeons;
@@ -42,9 +42,12 @@ import StevenDimDoors.mod_pocketDim.core.PocketManager;
 import StevenDimDoors.mod_pocketDim.helpers.ChunkLoaderHelper;
 import StevenDimDoors.mod_pocketDim.helpers.DungeonHelper;
 import StevenDimDoors.mod_pocketDim.items.ItemBlockDimWall;
+import StevenDimDoors.mod_pocketDim.items.ItemDDKey;
 import StevenDimDoors.mod_pocketDim.items.ItemDimensionalDoor;
 import StevenDimDoors.mod_pocketDim.items.ItemGoldDimDoor;
 import StevenDimDoors.mod_pocketDim.items.ItemGoldDoor;
+import StevenDimDoors.mod_pocketDim.items.ItemPersonalDoor;
+import StevenDimDoors.mod_pocketDim.items.ItemQuartzDoor;
 import StevenDimDoors.mod_pocketDim.items.ItemRiftBlade;
 import StevenDimDoors.mod_pocketDim.items.ItemRiftSignature;
 import StevenDimDoors.mod_pocketDim.items.ItemStabilizedRiftSignature;
@@ -53,25 +56,24 @@ import StevenDimDoors.mod_pocketDim.items.ItemUnstableDoor;
 import StevenDimDoors.mod_pocketDim.items.ItemWarpDoor;
 import StevenDimDoors.mod_pocketDim.items.ItemWorldThread;
 import StevenDimDoors.mod_pocketDim.items.itemRiftRemover;
-import StevenDimDoors.mod_pocketDim.ticking.CommonTickHandler;
 import StevenDimDoors.mod_pocketDim.ticking.CustomLimboPopulator;
-import StevenDimDoors.mod_pocketDim.ticking.FastRiftRegenerator;
-import StevenDimDoors.mod_pocketDim.ticking.LimboDecay;
+import StevenDimDoors.mod_pocketDim.ticking.LimboDecayScheduler;
 import StevenDimDoors.mod_pocketDim.ticking.MobMonolith;
 import StevenDimDoors.mod_pocketDim.ticking.RiftRegenerator;
+import StevenDimDoors.mod_pocketDim.ticking.ServerTickHandler;
 import StevenDimDoors.mod_pocketDim.tileentities.TileEntityDimDoor;
 import StevenDimDoors.mod_pocketDim.tileentities.TileEntityDimDoorGold;
 import StevenDimDoors.mod_pocketDim.tileentities.TileEntityRift;
 import StevenDimDoors.mod_pocketDim.tileentities.TileEntityTransTrapdoor;
-import StevenDimDoors.mod_pocketDim.util.DDLogger;
 import StevenDimDoors.mod_pocketDim.world.BiomeGenLimbo;
 import StevenDimDoors.mod_pocketDim.world.BiomeGenPocket;
 import StevenDimDoors.mod_pocketDim.world.DDBiomeGenBase;
+import StevenDimDoors.mod_pocketDim.world.LimboDecay;
 import StevenDimDoors.mod_pocketDim.world.LimboProvider;
+import StevenDimDoors.mod_pocketDim.world.PersonalPocketProvider;
 import StevenDimDoors.mod_pocketDim.world.PocketProvider;
 import StevenDimDoors.mod_pocketDim.world.gateways.GatewayGenerator;
 import StevenDimDoors.mod_pocketDimClient.ClientPacketHandler;
-import StevenDimDoors.mod_pocketDimClient.ClientTickHandler;
 import cpw.mods.fml.common.Mod;
 import cpw.mods.fml.common.Mod.EventHandler;
 import cpw.mods.fml.common.Mod.Instance;
@@ -99,16 +101,21 @@ serverPacketHandlerSpec =
 @SidedPacketHandler(channels = {PacketConstants.CHANNEL_NAME}, packetHandler = ServerPacketHandler.class))
 public class mod_pocketDim
 {
-	public static final String version = "1.6.4-R2.2.3";
+	public static final String version = "@VERSION@";
 	public static final String modid = "dimdoors";
 	
+	//TODO need a place to stick all these constants
+	public static final int NETHER_DIMENSION_ID = -1;
+
 	//need to clean up 
 	@SidedProxy(clientSide = "StevenDimDoors.mod_pocketDimClient.ClientProxy", serverSide = "StevenDimDoors.mod_pocketDim.CommonProxy")
 	public static CommonProxy proxy;
 
-	@Instance("PocketDimensions")
-	public static mod_pocketDim instance = new mod_pocketDim();
+	@Instance(mod_pocketDim.modid)
+	public static mod_pocketDim instance;
 
+	public static Block quartzDoor;
+	public static Block personalDimDoor;
 	public static Block transientDoor;
 	public static Block warpDoor;
 	public static Block goldenDoor;
@@ -132,7 +139,10 @@ public class mod_pocketDim
 	public static Item itemRiftSignature;
 	public static Item itemStableFabric;
 	public static Item itemUnstableDoor;
-	public static Item itemStabilizedLinkSignature;
+	public static Item itemDDKey;
+	public static Item itemQuartzDoor;
+	public static Item itemPersonalDoor;
+	public static Item itemStabilizedRiftSignature;
 
 	public static BiomeGenBase limboBiome;
 	public static BiomeGenBase pocketBiome;
@@ -142,9 +152,13 @@ public class mod_pocketDim
 	public static DDProperties properties;
 	public static DDWorldProperties worldProperties;
 	public static CustomLimboPopulator spawner; //Added this field temporarily. Will be refactored out later.
-	public static FastRiftRegenerator fastRiftRegenerator;
+	public static RiftRegenerator riftRegenerator;
 	public static GatewayGenerator gatewayGenerator;
 	public static DeathTracker deathTracker;
+	private static ServerTickHandler serverTickHandler;
+	private static LimboDecayScheduler limboDecayScheduler;
+	private static LimboDecay limboDecay;
+	private static EventHookContainer hooks;
 	
 	//TODO this is a temporary workaround for saving data
 	private String currrentSaveRootDirectory;
@@ -167,14 +181,13 @@ public class mod_pocketDim
 	@EventHandler
 	public void onPreInitialization(FMLPreInitializationEvent event)
 	{
-		instance = this;
 		//This should be the FIRST thing that gets done.
 		String path = event.getSuggestedConfigurationFile().getAbsolutePath().replace(modid, "DimDoors");
 
 		properties = DDProperties.initialize(new File(path));
 
 		//Now do other stuff
-		EventHookContainer hooks = new EventHookContainer(properties);
+		hooks = new EventHookContainer(properties);
 		MinecraftForge.EVENT_BUS.register(hooks);
 		MinecraftForge.TERRAIN_GEN_BUS.register(hooks);
 	}
@@ -182,31 +195,34 @@ public class mod_pocketDim
 	@EventHandler
 	public void onInitialization(FMLInitializationEvent event)
 	{
-		CommonTickHandler commonTickHandler = new CommonTickHandler();
-		TickRegistry.registerTickHandler(new ClientTickHandler(), Side.CLIENT);
-		TickRegistry.registerTickHandler(commonTickHandler, Side.SERVER);
+		// Initialize ServerTickHandler instance
+		serverTickHandler = new ServerTickHandler();
+		TickRegistry.registerTickHandler(serverTickHandler, Side.SERVER);
 		
-		//MonolithSpawner should be initialized before any provider instances are created
-		//Register the other regular tick receivers as well
-		spawner = new CustomLimboPopulator(commonTickHandler, properties);
-		new RiftRegenerator(commonTickHandler); //No need to store the reference
-		LimboDecay decay = new LimboDecay(commonTickHandler, properties);
-		fastRiftRegenerator = new FastRiftRegenerator(commonTickHandler);
+		// Initialize LimboDecay instance: required for BlockLimbo
+		limboDecay = new LimboDecay(properties);
 
+		// Initialize blocks and items
 		transientDoor = new TransientDoor(properties.TransientDoorID, Material.iron, properties).setHardness(1.0F) .setUnlocalizedName("transientDoor");
 		goldenDimensionalDoor = new BlockGoldDimDoor(properties.GoldenDimensionalDoorID, Material.iron, properties).setHardness(1.0F) .setUnlocalizedName("dimDoorGold");
 
+		quartzDoor = new BlockDoorQuartz(properties.QuartzDoorID, Material.rock).setHardness(0.1F).setUnlocalizedName("doorQuartz");
+		personalDimDoor = new PersonalDimDoor(properties.PersonalDimDoorID, Material.rock,properties).setHardness(0.1F).setUnlocalizedName("dimDoorPersonal");
+
 		goldenDoor = new BlockDoorGold(properties.GoldenDoorID, Material.iron).setHardness(0.1F).setUnlocalizedName("doorGold");
 		blockDimWall = new BlockDimWall(properties.FabricBlockID, 0, Material.iron).setLightValue(1.0F).setHardness(0.1F).setUnlocalizedName("blockDimWall");
 		blockDimWallPerm = (new BlockDimWallPerm(properties.PermaFabricBlockID, 0, Material.iron)).setLightValue(1.0F).setBlockUnbreakable().setResistance(6000000.0F).setUnlocalizedName("blockDimWallPerm");
 		warpDoor = new WarpDoor(properties.WarpDoorID, Material.wood, properties).setHardness(1.0F) .setUnlocalizedName("dimDoorWarp");
 		blockRift = (BlockRift) (new BlockRift(properties.RiftBlockID, 0, Material.air, properties).setHardness(1.0F) .setUnlocalizedName("rift"));
-		blockLimbo = new BlockLimbo(properties.LimboBlockID, 15, Material.iron, properties.LimboDimensionID, decay).setHardness(.2F).setUnlocalizedName("BlockLimbo").setLightValue(.0F);
+		blockLimbo = new BlockLimbo(properties.LimboBlockID, 15, Material.iron, properties.LimboDimensionID, limboDecay).setHardness(.2F).setUnlocalizedName("BlockLimbo").setLightValue(.0F);
 		unstableDoor = (new UnstableDoor(properties.UnstableDoorID, Material.iron, properties).setHardness(.2F).setUnlocalizedName("chaosDoor").setLightValue(.0F) );
 		dimensionalDoor = (DimensionalDoor) (new DimensionalDoor(properties.DimensionalDoorID, Material.iron, properties).setHardness(1.0F).setResistance(2000.0F) .setUnlocalizedName("dimDoor"));
 		transTrapdoor = (TransTrapdoor) (new TransTrapdoor(properties.TransTrapdoorID, Material.wood).setHardness(1.0F) .setUnlocalizedName("dimHatch"));
 
-		itemGoldenDoor = (new ItemGoldDoor(properties.GoldenDoorID, Material.wood)).setUnlocalizedName("itemGoldDoor");
+		itemDDKey = (new ItemDDKey(properties.DDKeyItemID)).setUnlocalizedName("itemDDKey");
+		itemQuartzDoor = (new ItemQuartzDoor(properties.QuartzDoorID, Material.rock)).setUnlocalizedName("itemQuartzDoor");
+		itemPersonalDoor = (new ItemPersonalDoor(properties.PersonalDimDoorID, Material.rock, (ItemDoor)this.itemQuartzDoor)).setUnlocalizedName("itemQuartzDimDoor");
+		itemGoldenDoor = (new ItemGoldDoor(properties.GoldenDoorItemID, Material.wood)).setUnlocalizedName("itemGoldDoor");
 		itemGoldenDimensionalDoor = (new ItemGoldDimDoor(properties.GoldenDimensionalDoorItemID, Material.iron, (ItemDoor)this.itemGoldenDoor)).setUnlocalizedName("itemGoldDimDoor");
 		itemDimensionalDoor = (ItemDimensionalDoor) (new ItemDimensionalDoor(properties.DimensionalDoorItemID, Material.iron, (ItemDoor)Item.doorIron)).setUnlocalizedName("itemDimDoor");
 		itemWarpDoor = (new ItemWarpDoor(properties.WarpDoorItemID, Material.wood,(ItemDoor)Item.doorWood)).setUnlocalizedName("itemDimDoorWarp");
@@ -215,7 +231,7 @@ public class mod_pocketDim
 		itemStableFabric = (new ItemStableFabric(properties.StableFabricItemID, 0)).setUnlocalizedName("itemStableFabric");
 		itemUnstableDoor = (new ItemUnstableDoor(properties.UnstableDoorItemID, Material.iron, null)).setUnlocalizedName("itemChaosDoor");
 		itemRiftBlade = (new ItemRiftBlade(properties.RiftBladeItemID, properties)).setUnlocalizedName("ItemRiftBlade");
-		itemStabilizedLinkSignature = (new ItemStabilizedRiftSignature(properties.StabilizedRiftSignatureItemID)).setUnlocalizedName("itemStabilizedRiftSig");
+		itemStabilizedRiftSignature = (new ItemStabilizedRiftSignature(properties.StabilizedRiftSignatureItemID)).setUnlocalizedName("itemStabilizedRiftSig");
 		itemWorldThread = (new ItemWorldThread(properties.WorldThreadItemID)).setUnlocalizedName("itemWorldThread");
 		
 		// Check if other biomes have been registered with the same IDs we want. If so, crash Minecraft
@@ -226,6 +242,8 @@ public class mod_pocketDim
 		mod_pocketDim.limboBiome = (new BiomeGenLimbo(properties.LimboBiomeID));
 		mod_pocketDim.pocketBiome = (new BiomeGenPocket(properties.PocketBiomeID));
 
+		GameRegistry.registerBlock(quartzDoor, "Quartz Door");
+		GameRegistry.registerBlock(personalDimDoor, "Personal Dimensional Door");
 		GameRegistry.registerBlock(goldenDoor, "Golden Door");
 		GameRegistry.registerBlock(goldenDimensionalDoor, "Golden Dimensional Door");
 		GameRegistry.registerBlock(unstableDoor, "Unstable Door");
@@ -243,6 +261,8 @@ public class mod_pocketDim
 			throw new IllegalStateException("There is a provider ID conflict between PocketProvider from Dimensional Doors and another provider type. Fix your configuration!");
 		if (!DimensionManager.registerProviderType(properties.LimboProviderID, LimboProvider.class, false))
 			throw new IllegalStateException("There is a provider ID conflict between LimboProvider from Dimensional Doors and another provider type. Fix your configuration!");
+		if (!DimensionManager.registerProviderType(properties.PersonalPocketProviderID, PersonalPocketProvider.class, false))
+			throw new IllegalStateException("There is a provider ID conflict between PersonalPocketProvider from Dimensional Doors and another provider type. Fix your configuration!");
 			
 		DimensionManager.registerDimension(properties.LimboDimensionID, properties.LimboProviderID);
 		
@@ -262,19 +282,24 @@ public class mod_pocketDim
 		LanguageRegistry.addName(itemRiftSignature, "Rift Signature");
 		LanguageRegistry.addName(itemGoldenDoor, "Golden Door");
 		LanguageRegistry.addName(itemGoldenDimensionalDoor, "Golden Dimensional Door");
-		LanguageRegistry.addName(itemStabilizedLinkSignature, "Stabilized Rift Signature");
+		LanguageRegistry.addName(itemStabilizedRiftSignature, "Stabilized Rift Signature");
 		LanguageRegistry.addName(itemRiftRemover, "Rift Remover");
 		LanguageRegistry.addName(itemStableFabric, "Stable Fabric");
 		LanguageRegistry.addName(itemUnstableDoor, "Unstable Door");
 		LanguageRegistry.addName(itemDimensionalDoor, "Dimensional Door");
 		LanguageRegistry.addName(itemRiftBlade, "Rift Blade");
 		LanguageRegistry.addName(itemWorldThread, "World Thread");
+		LanguageRegistry.addName(itemDDKey, "Rift Key");
+		LanguageRegistry.addName(itemQuartzDoor, "Quartz Door");
+		LanguageRegistry.addName(itemPersonalDoor, "Personal Dimensional Door");
+
 
 		/**
 		 * Add names for multiblock inventory item
 		 */
 		LanguageRegistry.addName(new ItemStack(blockDimWall, 1, 0), "Fabric of Reality");
 		LanguageRegistry.addName(new ItemStack(blockDimWall, 1, 1), "Ancient Fabric");
+		LanguageRegistry.addName(new ItemStack(blockDimWall, 1, 2), "Altered Fabric");
 
 		LanguageRegistry.instance().addStringLocalization("itemGroup.dimDoorsCustomTab", "en_US", "Dimensional Doors Items");
 
@@ -286,9 +311,12 @@ public class mod_pocketDim
 		EntityRegistry.registerModEntity(MobMonolith.class, "Monolith", properties.MonolithEntityID, this, 70, 1, true);
 		EntityList.IDtoClassMapping.put(properties.MonolithEntityID, MobMonolith.class);
 		EntityList.entityEggs.put(properties.MonolithEntityID, new EntityEggInfo(properties.MonolithEntityID, 0, 0xffffff));
-		LanguageRegistry.instance().addStringLocalization("entity.DimDoors.Obelisk.name", "Monolith");
+		LanguageRegistry.instance().addStringLocalization("entity.dimdoors.Monolith.name", "Monolith");
 
 		CraftingManager.registerRecipes(properties);
+		CraftingManager.registerDispenserBehaviors();
+		GameRegistry.registerCraftingHandler(new CraftingManager());
+
 		DungeonHelper.initialize();
 		gatewayGenerator = new GatewayGenerator(properties);
 		GameRegistry.registerWorldGenerator(mod_pocketDim.gatewayGenerator);
@@ -317,7 +345,14 @@ public class mod_pocketDim
 			deathTracker.writeToFile();
 			deathTracker = null;
 			worldProperties = null;
-			this.currrentSaveRootDirectory=null;
+			currrentSaveRootDirectory = null;
+			
+			// Unregister all tick receivers from serverTickHandler to avoid leaking
+			// scheduled tasks between single-player game sessions
+			serverTickHandler.unregisterReceivers();
+			spawner = null;
+			riftRegenerator = null;
+			limboDecayScheduler = null;
 		}
 		catch (Exception e)
 		{
@@ -335,6 +370,14 @@ public class mod_pocketDim
 		
 		// Initialize a new DeathTracker
 		deathTracker = new DeathTracker(currrentSaveRootDirectory + "/DimensionalDoors/data/deaths.txt");
+		
+		// Register regular tick receivers
+		// CustomLimboPopulator should be initialized before any provider instances are created
+		spawner = new CustomLimboPopulator(serverTickHandler, properties);
+		riftRegenerator = new RiftRegenerator(serverTickHandler, blockRift);
+		limboDecayScheduler = new LimboDecayScheduler(serverTickHandler, limboDecay);
+		
+		hooks.setSessionFields(worldProperties, riftRegenerator);
 	}
 
 	@EventHandler
@@ -345,19 +388,14 @@ public class mod_pocketDim
 		event.registerServerCommand( CommandCreateDungeonRift.instance() );
 		event.registerServerCommand( CommandListDungeons.instance() );
 		event.registerServerCommand( CommandCreateRandomRift.instance() );
-		event.registerServerCommand( CommandDeleteAllLinks.instance() );
-		//CommandDeleteDimensionData.instance().register(event);
 		event.registerServerCommand( CommandDeleteRifts.instance() );
 		event.registerServerCommand( CommandExportDungeon.instance() );
-		//CommandPrintDimensionData.instance().register(event);
-		//CommandPruneDimensions.instance().register(event);
 		event.registerServerCommand( CommandCreatePocket.instance() );
 		event.registerServerCommand( CommandTeleportPlayer.instance() );
 		
-		
 		try
 		{
-			ChunkLoaderHelper.loadChunkForcedWorlds(event);
+			ChunkLoaderHelper.loadForcedChunkWorlds(event);
 		}
 		catch (Exception e)
 		{

src/main/java/StevenDimDoors/mod_pocketDim/saving/DDSaveHandler.java

@@ -7,12 +7,13 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;
-
+import java.util.Map.Entry;
 import net.minecraftforge.common.DimensionManager;
 import StevenDimDoors.mod_pocketDim.Point3D;
 import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.LinkTypes;
+import StevenDimDoors.mod_pocketDim.core.DimensionType;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 import StevenDimDoors.mod_pocketDim.dungeon.DungeonData;
@@ -20,7 +21,6 @@ import StevenDimDoors.mod_pocketDim.helpers.DungeonHelper;
 import StevenDimDoors.mod_pocketDim.util.DDLogger;
 import StevenDimDoors.mod_pocketDim.util.FileFilters;
 import StevenDimDoors.mod_pocketDim.util.Point4D;
-
 import com.google.common.io.Files;
 
 public class DDSaveHandler
@@ -59,6 +59,15 @@ public class DDSaveHandler
 			PocketManager.createAndRegisterBlacklist(blacklist);
 		}
 		
+		// Load the personal pockets mapping		
+		File personalPocketMap = new File(basePath+"personalPockets.txt");
+		HashMap<String, Integer> ppMap = new HashMap<String, Integer>();
+		if(personalPocketMap.exists())
+		{
+			PersonalPocketMappingProcessor ppMappingProcessor = new PersonalPocketMappingProcessor();
+			ppMap = readPersonalPocketsMapping(personalPocketMap,ppMappingProcessor);
+		}						
+		
 		// List any dimension data files and read each dimension
 		DimDataProcessor reader = new DimDataProcessor();
 		HashMap<Integer, PackedDimData> packedDims = new HashMap<Integer, PackedDimData>();
@@ -82,7 +91,17 @@ public class DDSaveHandler
 		{
 			linksToUnpack.addAll(packedDim.Links);
 		}
-		return unpackDimData(packedDims) && unpackLinkData(linksToUnpack);
+		unpackDimData(packedDims);
+		unpackLinkData(linksToUnpack);
+		
+		HashMap<String, NewDimData> personalPocketsMap = new HashMap<String, NewDimData>();
+		for(Entry<String, Integer> pair : ppMap.entrySet())
+		{
+			personalPocketsMap.put(pair.getKey(), PocketManager.getDimensionData(pair.getValue()));
+		}
+		PocketManager.setPersonalPocketsMapping(personalPocketsMap);
+		
+		return true;
 	}
 	
 	/**
@@ -139,7 +158,7 @@ public class DDSaveHandler
 		}
 		if(isMissing)
 		{
-			packedDim=(new PackedDimData(packedDim.ID, packedDim.Depth, packedDim.PackDepth, packedDim.ParentID, packedDim.RootID, packedDim.Orientation, packedDim.IsDungeon, packedDim.IsFilled, packedDim.DungeonData, packedDim.Origin, children, packedDim.Links, packedDim.Tails));
+			packedDim=(new PackedDimData(packedDim.ID, packedDim.Depth, packedDim.PackDepth, packedDim.ParentID, packedDim.RootID, packedDim.Orientation, DimensionType.getTypeFromIndex(packedDim.DimensionType), packedDim.IsFilled, packedDim.DungeonData, packedDim.Origin, children, packedDim.Links, packedDim.Tails));
 			packedDims.put(packedDim.ID, packedDim);
 		}
 		return children;
@@ -157,12 +176,12 @@ public class DDSaveHandler
 	{
 		ArrayList<Integer> fosterChildren = new ArrayList<Integer>();
 		fosterChildren.add(packedDim.ID);
-
+		DimensionType type = DimensionType.getTypeFromIndex(packedDim.DimensionType);
 		//fix pockets without parents
 		if(!packedDims.containsKey(packedDim.ParentID))
 		{
 			//Fix the orphan by changing its root to its parent, re-connecting it to the list
-			packedDim=(new PackedDimData(packedDim.ID, 1, packedDim.PackDepth, packedDim.RootID, packedDim.RootID, packedDim.Orientation, packedDim.IsDungeon, packedDim.IsFilled, packedDim.DungeonData, packedDim.Origin, packedDim.ChildIDs, packedDim.Links, packedDim.Tails));
+			packedDim=(new PackedDimData(packedDim.ID, 1, packedDim.PackDepth, packedDim.RootID, packedDim.RootID, packedDim.Orientation,type, packedDim.IsFilled, packedDim.DungeonData, packedDim.Origin, packedDim.ChildIDs, packedDim.Links, packedDim.Tails));
 			packedDims.put(packedDim.ID, packedDim);
 		}
 		//fix pockets whose parents have forgotten about them
@@ -171,7 +190,7 @@ public class DDSaveHandler
 		{
 			//find the root, and fix it by adding the orphan's ID to its children
 			fosterChildren.addAll(fosterParent.ChildIDs);
-			fosterParent=(new PackedDimData(fosterParent.ID, fosterParent.Depth, fosterParent.PackDepth, fosterParent.ParentID, fosterParent.RootID, fosterParent.Orientation, fosterParent.IsDungeon, fosterParent.IsFilled, fosterParent.DungeonData, fosterParent.Origin, fosterChildren, fosterParent.Links, fosterParent.Tails));
+			fosterParent=(new PackedDimData(fosterParent.ID, fosterParent.Depth, fosterParent.PackDepth, fosterParent.ParentID, fosterParent.RootID, fosterParent.Orientation, type, fosterParent.IsFilled, fosterParent.DungeonData, fosterParent.Origin, fosterChildren, fosterParent.Links, fosterParent.Tails));
 			packedDims.put(fosterParent.ID, fosterParent);	
 		}
 			
@@ -190,18 +209,14 @@ public class DDSaveHandler
 			if(packedLink.parent.equals(fakePoint))
 			{
 				NewDimData data = PocketManager.getDimensionData(packedLink.source.getDimension());
-				int linkType = packedLink.tail.linkType;
+				LinkType linkType = LinkType.getLinkTypeFromIndex(packedLink.tail.linkType);
 
-				if((linkType < LinkTypes.ENUM_MIN || linkType > LinkTypes.ENUM_MAX) && linkType != LinkTypes.CLIENT_SIDE)
-				{
-					linkType = LinkTypes.NORMAL;
-				}
 				
-				DimLink link = data.createLink(packedLink.source, linkType, packedLink.orientation);
+				DimLink link = data.createLink(packedLink.source, linkType, packedLink.orientation, packedLink.lock);
 				Point4D destination = packedLink.tail.destination;
 				if(destination!=null)
 				{
-					PocketManager.getDimensionData(destination.getDimension()).setDestination(link, destination.getX(),destination.getY(),destination.getZ());
+					PocketManager.createDimensionDataDangerously(destination.getDimension()).setLinkDestination(link, destination.getX(),destination.getY(),destination.getZ());
 				}
 				unpackedLinks.add(packedLink);
 			}
@@ -213,10 +228,10 @@ public class DDSaveHandler
 		{
 			for(PackedLinkData packedLink : linksToUnpack)
 			{
-				NewDimData data = PocketManager.getDimensionData(packedLink.source.getDimension());
+				NewDimData data = PocketManager.createDimensionDataDangerously(packedLink.source.getDimension());
 				if(data.getLink(packedLink.parent)!=null)
 				{
-					data.createChildLink(packedLink.source.getX(), packedLink.source.getY(), packedLink.source.getZ(), data.getLink(packedLink.parent));
+					data.createChildLink(packedLink.source, data.getLink(packedLink.parent), packedLink.lock);
 				}
 				unpackedLinks.add(packedLink);
 			}
@@ -270,6 +285,9 @@ public class DDSaveHandler
 		// Create and write the blackList
 		writeBlacklist(blacklist, savePath);
 		
+		//create and write personal pocket mapping
+		writePersonalPocketMap(PocketManager.getPersonalPocketMapping(), savePath);
+		
 		// Write the dimension save data
 		boolean succeeded = true;
 		DimDataProcessor writer = new DimDataProcessor();
@@ -312,6 +330,32 @@ public class DDSaveHandler
 		}	
 	}
 	
+	private static boolean writePersonalPocketMap(HashMap<String, NewDimData> hashMap, String savePath)
+	{
+		try
+		{
+			HashMap<String, Integer> ppMap = new HashMap<String, Integer>();
+			
+			for(Entry<String, NewDimData> pair : hashMap.entrySet())
+			{
+				ppMap.put(pair.getKey(), pair.getValue().id());
+			}
+			PersonalPocketMappingProcessor writer = new PersonalPocketMappingProcessor();
+			File tempFile = new File(savePath + "/personalPockets.tmp");
+			File saveFile = new File(savePath + "/personalPockets.txt");
+			writer.writeToFile(tempFile, ppMap);
+			saveFile.delete();
+			tempFile.renameTo(saveFile);
+			return true;
+		}
+		catch (Exception e)
+		{
+			System.err.println("Could not save personal pockets mapping. The following error occurred:");
+			printException(e, true);
+			return false;
+		}	
+	}
+	
 	private static boolean writeDimension(IPackable<PackedDimData> dimension, DimDataProcessor writer, String basePath, String backupPath)
 	{
 		try
@@ -378,7 +422,6 @@ public class DDSaveHandler
 
 	public static List<Integer> readBlacklist(File blacklistFile, BlacklistProcessor reader)
 	{
-	
 		try
 		{
 			return reader.readFromFile(blacklistFile);
@@ -388,6 +431,18 @@ public class DDSaveHandler
 			e.printStackTrace();
 			return null;
 		}
+	}
 	
+	public static HashMap<String,Integer> readPersonalPocketsMapping(File ppMap, PersonalPocketMappingProcessor reader)
+	{
+		try
+		{
+			return reader.readFromFile(ppMap);
+		}
+		catch (Exception e)
+		{
+			e.printStackTrace();
+			return null;
+		}
 	}
 }

src/main/java/StevenDimDoors/mod_pocketDim/saving/DimDataProcessor.java

@@ -4,33 +4,53 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.OutputStream;
-import java.util.ArrayList;
-import java.util.List;
-
-import com.google.gson.Gson;
-import com.google.gson.GsonBuilder;
-import com.google.gson.stream.JsonReader;
-import com.google.gson.stream.JsonToken;
-
-import StevenDimDoors.mod_pocketDim.Point3D;
+import java.util.HashMap;
+import StevenDimDoors.mod_pocketDim.core.DimensionType;
 import StevenDimDoors.mod_pocketDim.util.BaseConfigurationProcessor;
 import StevenDimDoors.mod_pocketDim.util.ConfigurationProcessingException;
-import StevenDimDoors.mod_pocketDim.util.Point4D;
+import StevenDimDoors.mod_pocketDim.util.JSONValidator;
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.JsonElement;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
+import com.google.gson.stream.JsonReader;
 
 public class DimDataProcessor extends BaseConfigurationProcessor<PackedDimData>
 {
+	public final String JSON_VERSION_PROPERTY_NAME = "SAVE_DATA_VERSION_ID_INSTANCE";
+	private HashMap<Integer, JsonObject> SAVE_DATA_SCHEMA; 
+	private static final JsonParser jsonParser = new JsonParser();
+	
+	public static final String BASE_SCHEMA_PATH = "/assets/dimdoors/text/";
+	
+	
+	//TODO dont load the schemas every time
+	public DimDataProcessor()
+	{	
+		SAVE_DATA_SCHEMA = new HashMap<Integer, JsonObject>();
+		
+		//Load the old schema/s
+		SAVE_DATA_SCHEMA.put(982405775, loadSchema(BASE_SCHEMA_PATH+"Dim_Data_Schema_v982405775.json"));
+		
+		//load the current schema
+		SAVE_DATA_SCHEMA.put(PackedDimData.SAVE_DATA_VERSION_ID, loadSchema(BASE_SCHEMA_PATH+"Dim_Data_Schema_v1-0-0.json"));
+
+	}
 	@Override
 	public PackedDimData readFromStream(InputStream inputStream)
 		throws ConfigurationProcessingException
 	{	
 		try
 		{
+			//read in the json save file represeting a single dimension
 			JsonReader reader = new JsonReader(new InputStreamReader(inputStream, "UTF-8"));
-			PackedDimData data = this.createDImDataFromJson(reader);
+			PackedDimData data = this.readDimDataJson(reader);
 			reader.close();
 			return data;
+			
 		}
-		catch (IOException e)
+		catch (Exception e)
 		{
 			e.printStackTrace();
 			throw new ConfigurationProcessingException("Could not read packedDimData");
@@ -42,259 +62,132 @@ public class DimDataProcessor extends BaseConfigurationProcessor<PackedDimData>
 	public void writeToStream(OutputStream outputStream, PackedDimData data)
 		throws ConfigurationProcessingException
 	{
-		/** Print out dimData using the GSON built in serializer. I dont feel bad doing this because
-		 *  1- We can read it
-		 *  2- We are manually reading the data in.
-		 *  3- The error messages tell us exactly where its failing, so its easy to fix
-		 */
-		
+		//create a json object from a packedDimData instance
 		GsonBuilder gsonBuilder = new GsonBuilder();
-		Gson gson = gsonBuilder.setPrettyPrinting().create();
+		gsonBuilder.setPrettyPrinting();
+		Gson gson = gsonBuilder.create();
+		JsonElement ele = gson.toJsonTree(data);
 	
 		try 
 		{
-			outputStream.write(gson.toJson(data).getBytes("UTF-8"));
+			//ensure our json object corresponds to our schema
+			JSONValidator.validate(getSaveDataSchema(ele.getAsJsonObject()), ele);
+			outputStream.write(gson.toJson(ele).getBytes("UTF-8"));
 			outputStream.close();
 		} 
-		catch (IOException e) 
+		catch (Exception e) 
 		{
 			// not sure if this is kosher, we need it to explode, but not by throwing the IO exception. 
-			throw new ConfigurationProcessingException("Incorrectly formatted save data");
+			throw new ConfigurationProcessingException("Could not access save data");
 		}
+		
 	}
+	
 	/**
-	 * Nightmare method that takes a JsonReader pointed at a serialized instance of PackedDimData
+	 * validates the save file against it's current version, then updates and validates it again if it needs it
+	 * then it loads it
 	 * @param reader
 	 * @return
 	 * @throws IOException
 	 */
-	public PackedDimData createDImDataFromJson(JsonReader reader) throws IOException 
+	public PackedDimData readDimDataJson(JsonReader reader) throws IOException
 	{
-		int ID;
-		boolean IsDungeon;
-		boolean IsFilled;
-		int Depth;
-		int PackDepth;
-		int ParentID;
-		int RootID;
-		PackedDungeonData Dungeon = null;
-		Point3D Origin;
-		int Orientation;
-		List<Integer> ChildIDs;
-		List<PackedLinkData> Links;
-		List<PackedLinkTail> Tails = new ArrayList<PackedLinkTail>();
+		//read the save file into a Json element
+		JsonElement ele = jsonParser.parse(reader);
 		
-		reader.beginObject();
+		//get the schema that corresponds to the save file's listed version number
+		JsonObject schema = this.getSaveDataSchema(ele.getAsJsonObject());
 		
-		reader.nextName();
-		if (reader.nextLong() != PackedDimData.SAVE_DATA_VERSION_ID)
-		{
-			throw new IOException("Save data version mismatch");
+		//validate the save file against its schema
+		JSONValidator.validate(schema, ele);
+		
+		//handle updating old save data
+		ele = processSaveData(schema, ele.getAsJsonObject());
+		
+		//convert the updated and verified json into an instance of PackedDimData
+		GsonBuilder gsonBuilder = new GsonBuilder();
+		return gsonBuilder.create().fromJson(ele, PackedDimData.class);
 	}
 	
-		reader.nextName();
-		ID = reader.nextInt();
-		
-		reader.nextName();
-		IsDungeon = reader.nextBoolean();
-		
-		reader.nextName();
-		IsFilled = reader.nextBoolean();
-		
-		reader.nextName();
-		Depth = reader.nextInt();
-		
-		reader.nextName();
-		PackDepth = reader.nextInt();
-		
-		reader.nextName();
-		ParentID=reader.nextInt();
-		
-		reader.nextName();
-		RootID= reader.nextInt();
-		
-		if(reader.nextName().equals("DungeonData"))
+	/**
+	 * Gets the schema that corresponds to a version of our save data
+	 * @param obj
+	 * @return
+	 * @throws IOException 
+	 */
+	public JsonObject getSaveDataSchema(JsonObject obj)
 	{
-			Dungeon = createDungeonDataFromJson(reader);
-			reader.nextName();
+		JsonObject schema =  this.SAVE_DATA_SCHEMA.get(obj.get(JSON_VERSION_PROPERTY_NAME).getAsInt());
+		
+		if(schema == null)
+		{
+			throw new IllegalStateException("Invalid save data version");
 		}
 		
-		Origin = createPointFromJson(reader);
-		
-		reader.nextName();
-		Orientation = reader.nextInt();
-		
-		reader.nextName();
-		ChildIDs = this.createIntListFromJson(reader);
-		
-		reader.nextName();
-		Links = this.createLinksListFromJson(reader);
-		
-		return new PackedDimData(ID, Depth, PackDepth, ParentID, RootID, Orientation, IsDungeon, IsFilled, Dungeon, Origin, ChildIDs, Links, Tails);
+		return schema;
 	}
 	
-	private Point3D createPointFromJson(JsonReader reader) throws IOException
+	/**
+	 * Internally load the save data schema so we dont load them every single time we validate save data
+	 * @param path
+	 * @return
+	 */
+	private JsonObject loadSchema(String path)
 	{
-		reader.beginObject();
+		InputStream in = this.getClass().getResourceAsStream(path);
+		JsonReader reader = new JsonReader(new InputStreamReader(in));
 
-		reader.nextName();
-		int x = reader.nextInt();
-		
-		reader.nextName();
-		int y = reader.nextInt();
-		
-		reader.nextName();
-		int z = reader.nextInt();
-		
-		reader.endObject();
-		
-		return new Point3D(x,y,z);
+		JsonObject schema = jsonParser.parse(reader).getAsJsonObject();
+		try
+		{
+			reader.close();
+			in.close();
+		}
+		catch (IOException e)
+		{
+			System.err.println("Could not load Json Save Data definitions");
+			e.printStackTrace();
+			throw new IllegalStateException("Could not load Json Save Data definitions");
 		}
 		
-	private Point4D createPoint4DFromJson(JsonReader reader) throws IOException
-	{
-		reader.beginObject();
-		
-		reader.nextName();
-		int x = reader.nextInt();
-		
-		reader.nextName();
-		int y = reader.nextInt();
-		
-		reader.nextName();
-		int z = reader.nextInt();
-		
-		reader.nextName();
-		int dimension = reader.nextInt();
-		
-		reader.endObject();
-		
-		return new Point4D(x,y,z,dimension);
+		return schema;
 	}
 	
-	private List<Integer> createIntListFromJson(JsonReader reader) throws IOException
+	/**
+	 * I use this method to update old save data files to the new format before actually loading them. 
+	 * @return
+	 */
+	public JsonObject processSaveData(JsonObject schema, JsonObject save)
 	{
-		List<Integer> list = new ArrayList<Integer>();
-		reader.beginArray();
-		
-		while (reader.peek() != JsonToken.END_ARRAY)
+		if(save.get(JSON_VERSION_PROPERTY_NAME).getAsInt()== 982405775)
 		{
-			list.add(reader.nextInt());
+			DimensionType type;
 			
+			//see if the dim is a pocket
+			if(save.get("RootID").getAsInt() != save.get("ID").getAsInt())
+			{
+				if(save.get("IsDungeon").getAsBoolean())
+				{
+					type = DimensionType.DUNGEON;
 				}
-		reader.endArray();
-		return list;
+				else
+				{
+					type = DimensionType.POCKET;
+				}
+			}
+			else
+			{
+				type = DimensionType.ROOT;
 			}
 			
-	private List<PackedLinkData> createLinksListFromJson(JsonReader reader) throws IOException
-	{
-		List<PackedLinkData> list = new ArrayList<PackedLinkData>();
-		
-		reader.beginArray();
-		
-		while (reader.peek() != JsonToken.END_ARRAY)
-		{
-			list.add(createLinkDataFromJson(reader));
-		}
-		reader.endArray();
-		return list;
+			save.remove("IsDungeon");
+			save.addProperty("DimensionType",type.index);
+			save.remove(this.JSON_VERSION_PROPERTY_NAME);
+			save.addProperty(this.JSON_VERSION_PROPERTY_NAME, PackedDimData.SAVE_DATA_VERSION_ID);
+			return processSaveData(this.getSaveDataSchema(save), save);
 		}
 		
-	private PackedLinkData createLinkDataFromJson(JsonReader reader) throws IOException
-	{
-		Point4D source;
-		Point3D parent;
-		PackedLinkTail tail;
-		int orientation;
-		List<Point3D> children = new ArrayList<Point3D>();
-		
-		reader.beginObject();
-		
-		reader.nextName();
-		source = this.createPoint4DFromJson(reader);
-		
-		reader.nextName();
-		parent = this.createPointFromJson(reader);
-		
-		reader.nextName();
-		tail = this.createLinkTailFromJson(reader);
-		
-		reader.nextName();
-		orientation = reader.nextInt();
-		
-		reader.nextName();
-		reader.beginArray();
-		
-		while (reader.peek() != JsonToken.END_ARRAY)
-		{
-			children.add(this.createPointFromJson(reader));
-		}
-		reader.endArray();
-		reader.endObject();
-		
-		return new PackedLinkData(source, parent, tail, orientation, children);
-	}
-	private PackedDungeonData createDungeonDataFromJson(JsonReader reader) throws IOException
-	{
-		int Weight;
-		boolean IsOpen;
-		boolean IsInternal;
-		String SchematicPath;
-		String SchematicName;
-		String DungeonTypeName;
-		String DungeonPackName;
-		
-		reader.beginObject();
-		@SuppressWarnings("unused")
-		JsonToken test = reader.peek();
-		
-		if(reader.peek() == JsonToken.END_OBJECT)
-		{
-			return null;
-		}
-		
-		reader.nextName();
-		Weight=reader.nextInt();
-		
-		reader.nextName();
-		IsOpen=reader.nextBoolean();
-		
-		reader.nextName();
-		IsInternal=reader.nextBoolean();
-		
-		reader.nextName();
-		SchematicPath=reader.nextString();
-		
-		reader.nextName();
-		SchematicName=reader.nextString();
-		
-		reader.nextName();
-		DungeonTypeName=reader.nextString();
-		
-		reader.nextName();
-		DungeonPackName=reader.nextString();
-		
-		reader.endObject();
-		return new PackedDungeonData(Weight, IsOpen, IsInternal, SchematicPath, SchematicName, DungeonTypeName, DungeonPackName);
-	}
-	private PackedLinkTail createLinkTailFromJson(JsonReader reader) throws IOException
-	{
-		Point4D destination = null;
-		int linkType;
-		reader.beginObject();
-		reader.nextName();
-		
-		@SuppressWarnings("unused")
-		JsonToken test = reader.peek();
-		if (reader.peek() == JsonToken.BEGIN_OBJECT)
-		{
-			destination = this.createPoint4DFromJson(reader);
-			reader.nextName();
-		}
-		
-		linkType = reader.nextInt();
-		reader.endObject();
-		
-		return new PackedLinkTail(destination, linkType);
+		JSONValidator.validate(this.getSaveDataSchema(save), save);
+		return save;
 	}
 }

src/main/java/StevenDimDoors/mod_pocketDim/saving/OldSaveImporter.java

@@ -2,17 +2,16 @@ package StevenDimDoors.mod_pocketDim.saving;
 
 import java.io.File;
 import java.io.FileInputStream;
-import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
-
 import StevenDimDoors.mod_pocketDim.DimData;
 import StevenDimDoors.mod_pocketDim.LinkData;
-import StevenDimDoors.mod_pocketDim.Point3D;
-
 import StevenDimDoors.mod_pocketDim.ObjectSaveInputStream;
+import StevenDimDoors.mod_pocketDim.Point3D;
+import StevenDimDoors.mod_pocketDim.core.DimensionType;
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.util.Point4D;
 
 public class OldSaveImporter
@@ -39,35 +38,83 @@ public class OldSaveImporter
                  return;
         }
         
+        //build the child list
+        HashMap<Integer, ArrayList<Integer>> parentChildMapping = new HashMap<Integer, ArrayList<Integer>>();
+        for(DimData data : dimMap.values())
+        {
+        	if(data.isPocket)
+        	{
+	        	LinkData link = data.exitDimLink;
+	        	
+	        	if(parentChildMapping.containsKey(link.destDimID))
+	        	{
+	        		parentChildMapping.get(link.destDimID).add(data.dimID);
+	        	}
+	        	else
+	        	{
+	        		parentChildMapping.put(link.destDimID, new ArrayList<Integer>());
+	        		parentChildMapping.get(link.destDimID).add(data.dimID);
+	        	}
+	        	parentChildMapping.remove(data.dimID);
+        	}
+        }
+        
         for(DimData data : dimMap.values())
         {
             List<PackedLinkData> newPackedLinkData = new ArrayList<PackedLinkData>();
-        	List<Integer> childDims = new ArrayList<Integer>();
+            List<Integer> childDims;
+        	if(parentChildMapping.containsKey(data.dimID))
+        	{
+            	childDims =parentChildMapping.get(data.dimID);
+        	}
+        	else
+        	{
+        		childDims = new ArrayList<Integer>();
+        	}
 
             for(LinkData link : data.getLinksInDim())
             {
             	Point4D source = new Point4D(link.locXCoord,link.locYCoord,link.locZCoord,link.locDimID);
             	Point4D destintion = new Point4D(link.destXCoord,link.destYCoord,link.destZCoord,link.destDimID);
-            	PackedLinkTail tail = new PackedLinkTail(destintion, link.linkOrientation);
+            	PackedLinkTail tail = new PackedLinkTail(destintion, LinkType.NORMAL);
             	List<Point3D> children = new ArrayList<Point3D>();
 
-            	PackedLinkData newPackedLink = new PackedLinkData(source, new Point3D(-1,-1,-1), tail, link.linkOrientation,children);
+            	PackedLinkData newPackedLink = new PackedLinkData(source, new Point3D(-1,-1,-1), tail, link.linkOrientation,children, null);
             	
             	newPackedLinkData.add(newPackedLink);
             	allPackedLinks.add(newPackedLink);
-
             }
+            PackedDimData dim;
+            DimensionType type;
             
-            PackedDimData dim = new PackedDimData(data.dimID, data.depth, data.depth, data.exitDimLink.locDimID, data.exitDimLink.locDimID, 0, data.dungeonGenerator!=null, data.hasBeenFilled, null, new Point3D(0,64,0), childDims, newPackedLinkData, null);
+            if(data.isPocket)
+            {
+            	if(data.dungeonGenerator!=null)
+            	{
+            		type = DimensionType.DUNGEON;
+            	}
+            	else
+            	{
+            		type = DimensionType.POCKET;
+            	}
+            }
+            else
+            {
+            	type = DimensionType.ROOT;
+            }
+            if(data.isPocket)
+            {
+                dim = new PackedDimData(data.dimID, data.depth, data.depth, data.exitDimLink.locDimID, data.exitDimLink.locDimID, 0, type, data.hasBeenFilled, null, new Point3D(0,64,0), childDims, newPackedLinkData, null);
+            }
+            else
+            {
+                dim = new PackedDimData(data.dimID, data.depth, data.depth, data.dimID, data.dimID, 0, type, data.hasBeenFilled, null, new Point3D(0,64,0), childDims, newPackedLinkData, null);
+            }
             newPackedDimData.put(dim.ID,dim);
+        }
         
         DDSaveHandler.unpackDimData(newPackedDimData);
         DDSaveHandler.unpackLinkData(allPackedLinks);
-
-            
-        }
-       
-    
 	}
 	
 }

src/main/java/StevenDimDoors/mod_pocketDim/saving/PackedDimData.java

@@ -3,14 +3,15 @@ package StevenDimDoors.mod_pocketDim.saving;
 import java.util.List;
 
 import StevenDimDoors.mod_pocketDim.Point3D;
+import StevenDimDoors.mod_pocketDim.core.DimensionType;
 
 public class PackedDimData
 {
 	// These fields will be public since this is a simple data container
-	public final static long SAVE_DATA_VERSION_ID = 982405775L;
+	public final static int SAVE_DATA_VERSION_ID = 100;
 	public final long SAVE_DATA_VERSION_ID_INSTANCE = SAVE_DATA_VERSION_ID;
 	public final int ID;
-	public final boolean IsDungeon;
+	public final int DimensionType;
 	public final boolean IsFilled;
 	public final int Depth;
 	public final int PackDepth;
@@ -26,7 +27,7 @@ public class PackedDimData
 	// FIXME Missing dungeon data, not sure how to include it
 
 	public PackedDimData(int id, int depth, int packDepth, int parentID, int rootID, int orientation,
-		boolean isDungeon, boolean isFilled,PackedDungeonData dungeonData, Point3D origin, List<Integer> childIDs, List<PackedLinkData> links,
+		DimensionType type, boolean isFilled,PackedDungeonData dungeonData, Point3D origin, List<Integer> childIDs, List<PackedLinkData> links,
 		List<PackedLinkTail> tails)
 	{
 		ID = id;
@@ -35,7 +36,7 @@ public class PackedDimData
 		ParentID = parentID;
 		RootID = rootID;
 		Orientation = orientation;
-		IsDungeon = isDungeon;
+		DimensionType = type.index;
 		IsFilled = isFilled;
 		DungeonData = dungeonData;
 		Origin = origin;
@@ -49,4 +50,6 @@ public class PackedDimData
 	{
 		return "ID= "+this.ID;
 	}
+	
+	
 }

src/main/java/StevenDimDoors/mod_pocketDim/saving/PackedLinkData.java

@@ -3,6 +3,7 @@ package StevenDimDoors.mod_pocketDim.saving;
 import java.util.List;
 
 import StevenDimDoors.mod_pocketDim.Point3D;
+import StevenDimDoors.mod_pocketDim.core.DDLock;
 import StevenDimDoors.mod_pocketDim.util.Point4D;
 
 public class PackedLinkData
@@ -12,13 +13,15 @@ public class PackedLinkData
 	public final PackedLinkTail tail;
 	public final int orientation;
 	public final List<Point3D> children;
+	public final DDLock lock;
 	
-	public PackedLinkData(Point4D source, Point3D parent, PackedLinkTail tail, int orientation, List<Point3D> children)
+	public PackedLinkData(Point4D source, Point3D parent, PackedLinkTail tail, int orientation, List<Point3D> children, DDLock lock)
 	{
 		this.source=source;
 		this.parent=parent;
 		this.tail=tail;
 		this.orientation=orientation;
 		this.children=children;
+		this.lock = lock;
 	}
 }

src/main/java/StevenDimDoors/mod_pocketDim/saving/PackedLinkTail.java

@@ -1,5 +1,6 @@
 package StevenDimDoors.mod_pocketDim.saving;
 
+import StevenDimDoors.mod_pocketDim.core.LinkType;
 import StevenDimDoors.mod_pocketDim.util.Point4D;
 
 public class PackedLinkTail
@@ -7,10 +8,10 @@ public class PackedLinkTail
 	public final Point4D destination;
 	public final int linkType;
 	
-	public PackedLinkTail(Point4D destination, int linkType)
+	public PackedLinkTail(Point4D destination, LinkType linkType)
 	{
 		this.destination=destination;
-		this.linkType=linkType;
+		this.linkType=linkType.index;
 	}
 	
 }

src/main/java/StevenDimDoors/mod_pocketDim/saving/PersonalPocketMappingProcessor.java

@@ -0,0 +1,79 @@
+package StevenDimDoors.mod_pocketDim.saving;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import com.google.gson.stream.JsonReader;
+import com.google.gson.stream.JsonToken;
+
+import StevenDimDoors.mod_pocketDim.util.BaseConfigurationProcessor;
+import StevenDimDoors.mod_pocketDim.util.ConfigurationProcessingException;
+
+public class PersonalPocketMappingProcessor extends BaseConfigurationProcessor<HashMap<String, Integer>>
+{
+
+	@Override
+	public HashMap<String, Integer> readFromStream(InputStream inputStream) throws ConfigurationProcessingException
+	{
+		try
+		{
+			JsonReader reader = new JsonReader(new InputStreamReader(inputStream, "UTF-8"));
+			HashMap<String, Integer> data = this.createPersonalPocketsMapFromJson(reader);
+			reader.close();
+			return data;
+		}
+		catch (IOException e)
+		{
+			e.printStackTrace();
+			throw new ConfigurationProcessingException("Could not read personal pocket mapping");
+		}
+	}
+
+	private HashMap<String, Integer> createPersonalPocketsMapFromJson(JsonReader reader) throws IOException
+	{
+		HashMap<String, Integer> ppMap;
+		ppMap = this.createMapFromJson(reader);		
+		return ppMap;
+	}
+
+	private HashMap<String, Integer> createMapFromJson(JsonReader reader) throws IOException
+	{
+		HashMap<String, Integer> map = new HashMap<String, Integer>();
+		
+		reader.beginObject();
+		while(reader.peek()!= JsonToken.END_OBJECT)
+		{
+			map.put(reader.nextName(), reader.nextInt());
+		}
+		reader.endObject();
+		
+		return map;
+	}
+
+	@Override
+	public void writeToStream(OutputStream outputStream, HashMap<String, Integer> data) throws ConfigurationProcessingException
+	{
+		GsonBuilder gsonBuilder = new GsonBuilder();
+		Gson gson = gsonBuilder.setPrettyPrinting().create();
+		
+		try 
+		{
+			outputStream.write(gson.toJson(data).getBytes("UTF-8"));
+			outputStream.close();
+		} 
+		catch (IOException e) 
+		{
+			// not sure if this is kosher, we need it to explode, but not by throwing the IO exception. 
+			throw new ConfigurationProcessingException("Incorrectly formatted save data");
+		}
+		
+	}
+
+}

src/main/java/StevenDimDoors/mod_pocketDim/schematic/BlockRotator.java

@@ -70,6 +70,8 @@ public class BlockRotator
 
 		hasOrientations[mod_pocketDim.dimensionalDoor.blockID] = true;
 		hasOrientations[mod_pocketDim.warpDoor.blockID] = true;
+		hasOrientations[mod_pocketDim.goldenDimensionalDoor.blockID] = true;
+		hasOrientations[mod_pocketDim.personalDimDoor.blockID] = true;
 		
 	}
 

src/main/java/StevenDimDoors/mod_pocketDim/ticking/CustomLimboPopulator.java

@@ -1,6 +1,5 @@
 package StevenDimDoors.mod_pocketDim.ticking;
 
-import java.util.ArrayList;
 import java.util.Random;
 import java.util.concurrent.ConcurrentLinkedQueue;
 
@@ -31,7 +30,7 @@ public class CustomLimboPopulator implements IRegularTickReceiver {
 	{
 		this.properties = properties;
 		this.locations = new ConcurrentLinkedQueue<ChunkLocation>();
-		sender.registerForTicking(this, MONOLITH_SPAWNING_INTERVAL, false);
+		sender.registerReceiver(this, MONOLITH_SPAWNING_INTERVAL, false);
 	}
 	
 	@Override
@@ -65,7 +64,7 @@ public class CustomLimboPopulator implements IRegularTickReceiver {
 							limboWorld = PocketManager.loadDimension(properties.LimboDimensionID);
 						}
 						placeMonolithsInLimbo(limboWorld, location.ChunkX, location.ChunkZ);
-						mod_pocketDim.instance.gatewayGenerator.generate(limboWorld.rand, location.ChunkX, location.ChunkZ,
+						mod_pocketDim.gatewayGenerator.generate(limboWorld.rand, location.ChunkX, location.ChunkZ,
 								limboWorld, limboWorld.getChunkProvider(), limboWorld.getChunkProvider());
 					}
 					else

src/main/java/StevenDimDoors/mod_pocketDim/ticking/FastRiftRegenerator.java

@@ -1,53 +0,0 @@
-package StevenDimDoors.mod_pocketDim.ticking;
-
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.List;
-import java.util.Random;
-
-import net.minecraft.world.World;
-import net.minecraftforge.common.DimensionManager;
-import StevenDimDoors.mod_pocketDim.mod_pocketDim;
-import StevenDimDoors.mod_pocketDim.core.PocketManager;
-import StevenDimDoors.mod_pocketDim.util.Point4D;
-
-public class FastRiftRegenerator implements IRegularTickReceiver {
-	
-	private static final int RIFT_REGENERATION_INTERVAL = 10; //Regenerate scheduled rifts every 10 ticks
-	private static Random random = new Random();
-
-	private ArrayList<Point4D> locationsToRegen = new ArrayList<Point4D>();
-	
-	public FastRiftRegenerator(IRegularTickSender sender)
-	{
-		sender.registerForTicking(this, RIFT_REGENERATION_INTERVAL, false);
-	}
-	
-	@Override
-	public void notifyTick()
-	{
-		regenerateScheduledRifts();
-	}
-	
-	public void regenerateScheduledRifts()
-	{
-		if (!locationsToRegen.isEmpty())
-		{
-			List<Integer> loadedWorlds = (List<Integer>) Arrays.asList(DimensionManager.getIDs());
-			for (Point4D point: locationsToRegen)
-			{
-				if (loadedWorlds.contains(point.getDimension()) && PocketManager.getLink(point) != null)
-				{
-		    		World world = DimensionManager.getWorld(point.getDimension());
-	    			mod_pocketDim.blockRift.regenerateRift(world, point.getX(), point.getY(), point.getZ(), random);
-				}
-			}
-			locationsToRegen.clear();
-		}
-	}
-	
-	public void registerRiftForRegen(int x, int y, int z, int dimID)
-	{
-		this.locationsToRegen.add(new Point4D(x, y, z, dimID));
-	}
-}

src/main/java/StevenDimDoors/mod_pocketDim/ticking/IRegularTickSender.java

@@ -3,6 +3,7 @@ package StevenDimDoors.mod_pocketDim.ticking;
 
 public interface IRegularTickSender {
 
-	public void registerForTicking(IRegularTickReceiver receiver, int interval, boolean onTickStart);
+	public void registerReceiver(IRegularTickReceiver receiver, int interval, boolean onTickStart);
+	public void unregisterReceivers();
 	
 }

src/main/java/StevenDimDoors/mod_pocketDim/ticking/LimboDecayScheduler.java

@@ -0,0 +1,28 @@
+package StevenDimDoors.mod_pocketDim.ticking;
+
+import StevenDimDoors.mod_pocketDim.world.LimboDecay;
+
+/**
+ * Handles scheduling of periodic fast Limbo decay operations.
+ */
+public class LimboDecayScheduler implements IRegularTickReceiver {
+	
+	private static final int LIMBO_DECAY_INTERVAL = 10; //Apply fast decay every 10 ticks
+	
+	private LimboDecay decay;
+	
+	public LimboDecayScheduler(IRegularTickSender tickSender, LimboDecay decay)
+	{
+		this.decay = decay;
+		tickSender.registerReceiver(this, LIMBO_DECAY_INTERVAL, false);
+	}
+
+	/**
+	 * Applies fast Limbo decay periodically.
+	 */
+	@Override
+	public void notifyTick()
+	{
+		decay.applyRandomFastDecay();
+	}
+}

src/main/java/StevenDimDoors/mod_pocketDim/ticking/MobMonolith.java

@@ -2,22 +2,16 @@ package StevenDimDoors.mod_pocketDim.ticking;
 
 import java.util.List;
 
-import net.minecraft.block.Block;
-import net.minecraft.block.material.Material;
-import net.minecraft.entity.DataWatcher;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.EntityFlying;
-import net.minecraft.entity.EntityLiving;
 import net.minecraft.entity.SharedMonsterAttributes;
 import net.minecraft.entity.monster.IMob;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.nbt.NBTTagCompound;
 import net.minecraft.util.AxisAlignedBB;
-import net.minecraft.util.ChunkCoordinates;
 import net.minecraft.util.DamageSource;
 import net.minecraft.util.MathHelper;
 import net.minecraft.world.World;
-import net.minecraftforge.common.ForgeHooks;
 import StevenDimDoors.mod_pocketDim.mod_pocketDim;
 import StevenDimDoors.mod_pocketDim.config.DDProperties;
 import StevenDimDoors.mod_pocketDim.core.DDTeleporter;
@@ -27,26 +21,31 @@ import StevenDimDoors.mod_pocketDim.world.PocketProvider;
 
 public class MobMonolith extends EntityFlying implements IMob
 {
-	public static final int MAX_AGGRO_RANGE = 35;
-	public static final int MAX_SOUND_COOLDOWN = 200;
-	public static final float MAX_AGGRO = 100;
-	public static final int TEXTURE_STATES = 18;
+	private static final short MAX_AGGRO = 250;
+	private static final short MAX_AGGRO_CAP = 100;
+	private static final short MIN_AGGRO_CAP = 25;
+	private static final int MAX_TEXTURE_STATE = 18;
+	private static final int MAX_SOUND_COOLDOWN = 200;
+	private static final int MAX_AGGRO_RANGE = 35;
+	private static final int AGGRO_WATCHER_INDEX = 16;
+	
+	private static final float WIDTH = 3f;
+	private static final float HEIGHT = 3f;
+	private static final float EYE_HEIGHT = HEIGHT / 2;
+	
 	public float pitchLevel;
-	
-	public float aggro = 0;
-	private float soundTime = 0;
-	private byte textureState = 0;
-	
-	private int aggroMax;
+	private short aggro = 0;
+	private int soundTime = 0;
+	private final short aggroCap;
 
 	private static DDProperties properties = null;
 
-	public MobMonolith(World par1World) 
+	public MobMonolith(World world) 
 	{
-		super(par1World);
-		this.setSize(3F, 3F);
-		this.noClip=true;
-		this.aggroMax = rand.nextInt(245)+200;
+		super(world);
+		this.setSize(WIDTH, HEIGHT);
+		this.noClip = true;
+		this.aggroCap = (short) MathHelper.getRandomIntegerInRange(this.rand, MIN_AGGRO_CAP, MAX_AGGRO_CAP);
 		if (properties == null)
 			properties = DDProperties.instance();
 	}
@@ -60,16 +59,19 @@ public class MobMonolith extends EntityFlying implements IMob
 	@Override
 	public boolean attackEntityFrom(DamageSource par1DamageSource, float par2)
 	{
-		if (par1DamageSource == DamageSource.inWall)
+		if (par1DamageSource != DamageSource.inWall)
 		{
-			this.posY = posY + 1;
-		}
-		else
-		{
-			this.aggro = this.aggroMax;
+			this.aggro = MAX_AGGRO;
 		}
 		return false;
 	}
+	
+	@Override
+	public boolean canBreatheUnderwater()
+    {
+        return true;
+    }
+	
 	@Override
 	public AxisAlignedBB getBoundingBox()
 	{
@@ -92,7 +94,7 @@ public class MobMonolith extends EntityFlying implements IMob
 	protected void applyEntityAttributes()
 	{
 		super.applyEntityAttributes();
-		this.getAttributeMap().getAttributeInstance(SharedMonsterAttributes.maxHealth).setAttribute(10);
+		this.getAttributeMap().getAttributeInstance(SharedMonsterAttributes.maxHealth).setAttribute(57005);
 	}
 
 	@Override
@@ -104,22 +106,15 @@ public class MobMonolith extends EntityFlying implements IMob
 	@Override
 	public float getEyeHeight()
 	{
-		return this.height +2F;
-	}
-
-	public void setEntityPosition(Entity entity, double x, double y, double z)
-	{
-		entity.lastTickPosX = entity.prevPosX = entity.posX = x;
-		entity.lastTickPosY = entity.prevPosY = entity.posY = y + entity.yOffset;
-		entity.lastTickPosZ = entity.prevPosZ = entity.posZ = z;
-		entity.setPosition(x, y, z);
+		return EYE_HEIGHT;
 	}
 
 	@Override
 	protected void entityInit()
 	{
 		super.entityInit();
-		this.dataWatcher.addObject(16, Byte.valueOf((byte)0));
+		// Add a short for the aggro level
+		this.dataWatcher.addObject(AGGRO_WATCHER_INDEX, Short.valueOf((short) 0));
 	}
 
 	@Override
@@ -131,73 +126,105 @@ public class MobMonolith extends EntityFlying implements IMob
 	@Override
 	public void onEntityUpdate()
 	{
+		// Remove this Monolith if it's not in Limbo or in a pocket dimension
 		if (!(this.worldObj.provider instanceof LimboProvider || this.worldObj.provider instanceof PocketProvider))
 		{
 			this.setDead();
+			super.onEntityUpdate();
+			return;
 		}
 		
 		super.onEntityUpdate();
 		
-		EntityPlayer entityPlayer = this.worldObj.getClosestPlayerToEntity(this,MAX_AGGRO_RANGE);
+		// Check for players and update aggro levels even if there are no players in range
+		EntityPlayer player = this.worldObj.getClosestPlayerToEntity(this, MAX_AGGRO_RANGE);
+		boolean visibility = (player != null) ? player.canEntityBeSeen(this) : false;
+		this.updateAggroLevel(player, visibility);
 		
-		//need to always manage aggro level, even if player is out of range. 
-		this.setAggroLevel(entityPlayer);
+		// Change orientation and face a player if one is in range
+		if (player != null)
+		{
+			this.facePlayer(player);
+			if (!this.worldObj.isRemote && !(this.worldObj.provider instanceof LimboProvider))
+			{
+				// Play sounds on the server side, if the player isn't in Limbo.
+				// Limbo is excluded to avoid drowning out its background music.
+				// Also, since it's a large open area with many Monoliths, some
+				// of the sounds that would usually play for a moment would
+				// keep playing constantly and would get very annoying.
+				this.playSounds(player);
+			}
 
-		//these things only matter if the player is in range. 
-		if (entityPlayer != null)
+			if (visibility)
 			{
-			this.faceEntity(entityPlayer, 1, 1);
-			this.playSounds(entityPlayer);
-			//teleport the player if the conditions are met
-			if (aggro >= MAX_AGGRO && !this.worldObj.isRemote && properties.MonolithTeleportationEnabled && !entityPlayer.capabilities.isCreativeMode)
+				// Only spawn particles on the client side and outside Limbo
+				if (this.worldObj.isRemote && !(this.worldObj.provider instanceof LimboProvider))
+				{
+					this.spawnParticles(player);
+				}
+				
+				// Teleport the target player if various conditions are met
+				if (aggro >= MAX_AGGRO && !this.worldObj.isRemote &&
+						properties.MonolithTeleportationEnabled && !player.capabilities.isCreativeMode &&
+						!(this.worldObj.provider instanceof LimboProvider))
 				{
-				Point4D destination = LimboProvider.getLimboSkySpawn(entityPlayer, properties);
-				DDTeleporter.teleportEntity(entityPlayer, destination, false);
 					this.aggro = 0;
-				entityPlayer.worldObj.playSoundAtEntity(entityPlayer,mod_pocketDim.modid+":crack",13, 1);
+					Point4D destination = LimboProvider.getLimboSkySpawn(player, properties);
+					DDTeleporter.teleportEntity(player, destination, false);
+					player.worldObj.playSoundAtEntity(player, mod_pocketDim.modid + ":crack", 13, 1);
+				}
 			}
 		}
 	}
 
-	private void setAggroLevel(EntityPlayer player)
+	private void updateAggroLevel(EntityPlayer player, boolean visibility)
 	{
-		//aggro constantly decreases at a rate that varies with the current amount of aggro. 
-		if(aggro > 0)
+		// If we're working on the server side, adjust aggro level
+		// If we're working on the client side, retrieve aggro level from dataWatcher
+		if (!this.worldObj.isRemote)
 		{
-			this.aggro = this.aggro -(this.aggro/25);
-		}
-		if(player != null)
+			// Server side...
+			// Rapidly increase the aggro level if this Monolith can see the player
+			if (visibility)
 			{
-			//monoliths increase aggro slightly if the player is near, but slowly and to a cap. 
-			float distance = this.getDistanceToEntity(player);
-			aggro+= 1.5-(distance/this.MAX_AGGRO_RANGE);
-			
-			//rapidly increase aggro if the monolith has line of sight to the player.
-			if(player.canEntityBeSeen(this))
+				if (this.worldObj.provider instanceof LimboProvider)
 				{
-				//prevent monoliths from teleporting the player in limbo
-				if(this.worldObj.provider instanceof LimboProvider)
-				{
-					aggro+=1.5;
+					aggro++;
 				}
 				else
 				{
-					this.spawnParticles(player);
-					aggro+=3;
+					// Aggro increases faster outside of Limbo
+					aggro += 3;
 				}
 			}
+			else
+			{
+				if (aggro > aggroCap)
+				{
+					// Decrease aggro over time
+					aggro--;
+				}
+				else if (player != null && (aggro < aggroCap))
+				{
+					// Increase aggro if a player is within range and aggro < aggroCap
+					aggro++;
+				}
+			}
+			// Clamp the aggro level
+			aggro = (short) MathHelper.clamp_int(aggro, 0, MAX_AGGRO);
+			this.dataWatcher.updateObject(AGGRO_WATCHER_INDEX, Short.valueOf(aggro));
+		}
+		else
+		{
+			// Client side...
+			aggro = this.dataWatcher.getWatchableObjectShort(AGGRO_WATCHER_INDEX);
+		}
 	}
 	
-		//convert the aggro counter to one of the texture states, and set it.
-		this.textureState = (byte) ((this.TEXTURE_STATES/this.MAX_AGGRO)*this.aggro);
-		if(this.textureState>TEXTURE_STATES)
+	public int getTextureState()
 	{
-			textureState = TEXTURE_STATES;
-		}
-		if (!this.worldObj.isRemote)
-		{
-			this.dataWatcher.updateObject(16, Byte.valueOf(this.textureState));
-		}
+		// Determine texture state from aggro progress
+		return MathHelper.clamp_int(MAX_TEXTURE_STATE * aggro / MAX_AGGRO, 0, MAX_TEXTURE_STATE);
 	}
 	
 	/**
@@ -206,28 +233,29 @@ public class MobMonolith extends EntityFlying implements IMob
 	 */
 	private void playSounds(EntityPlayer entityPlayer)
 	{
-		float aggroPercent = (aggro/MAX_AGGRO);
-		if(this.soundTime<=0)
+		float aggroPercent = this.getAggroProgress();
+		if (this.soundTime <= 0)
 		{
-			this.playSound(mod_pocketDim.modid+":monk",  1F, 1F);
-			this.soundTime=100;
+			this.playSound(mod_pocketDim.modid + ":monk",  1F, 1F);
+			this.soundTime = 100;
 		}
-		if ((aggroPercent>.70)&&this.soundTime<100)
+		if ((aggroPercent > 0.70) && this.soundTime < 100)
 		{
-			this.worldObj.playSoundEffect(entityPlayer.posX, entityPlayer.posY, entityPlayer.posZ,mod_pocketDim.modid+":tearing",1F, (float) (1+this.rand.nextGaussian()));
-			this.soundTime=100+this.rand.nextInt(75);
+			this.worldObj.playSoundEffect(entityPlayer.posX, entityPlayer.posY, entityPlayer.posZ, mod_pocketDim.modid + ":tearing", 1F, (float) (1 + this.rand.nextGaussian()));
+			this.soundTime = 100 + this.rand.nextInt(75);
 		}
-		if ((aggroPercent>.90)&&this.soundTime<200)
+		if ((aggroPercent > 0.80) && this.soundTime < 200)
 		{
-			this.worldObj.playSoundEffect(entityPlayer.posX, entityPlayer.posY, entityPlayer.posZ,mod_pocketDim.modid+":tearing",7, 1F);
-			this.soundTime=250;
+			this.worldObj.playSoundEffect(entityPlayer.posX, entityPlayer.posY, entityPlayer.posZ, mod_pocketDim.modid + ":tearing", 7, 1F);
+			this.soundTime = 250;
 		}
 		this.soundTime--;
 	}
 	
 	private void spawnParticles(EntityPlayer player)
 	{
-		for (int i = 1; i < (10*(aggro/MAX_AGGRO)); ++i)
+		int count = 10 * aggro / MAX_AGGRO;
+		for (int i = 1; i < count; ++i)
 		{
 			player.worldObj.spawnParticle("portal", player.posX + (this.rand.nextDouble() - 0.5D) * this.width, 
 					player.posY + this.rand.nextDouble() * player.height - 0.75D, 
@@ -237,43 +265,38 @@ public class MobMonolith extends EntityFlying implements IMob
 		}
 	}
 	
-	@Override
-	public void faceEntity(Entity par1Entity, float par2, float par3)
+	public float getAggroProgress()
 	{
-		double d0 = par1Entity.posX - this.posX;
-		double d1 = par1Entity.posZ - this.posZ;
-		double d2 = (par1Entity.posY + par1Entity.getEyeHeight())  - (this.posY +this.getEyeHeight());
+		return ((float) aggro) / MAX_AGGRO;
+	}
+	
+	private void facePlayer(EntityPlayer player)
+	{
+		double d0 = player.posX - this.posX;
+		double d1 = player.posZ - this.posZ;
+		double d2 = (player.posY + player.getEyeHeight()) - (this.posY + this.getEyeHeight());
 		double d3 = MathHelper.sqrt_double(d0 * d0 + d1 * d1);
 		float f2 = (float)(Math.atan2(d1, d0) * 180.0D / Math.PI) - 90.0F;
-		this.pitchLevel = (float)-((Math.atan(d2/d3) )* 180.0D / Math.PI);
-		
+		this.pitchLevel = (float) -((Math.atan(d2/d3) )* 180.0D / Math.PI);
 		this.rotationYaw =  f2;
-		this.rotationYawHead=f2;
-		this.renderYawOffset=this.rotationYaw;
-	}
-
-	
-
-	@Override
-	public void writeEntityToNBT(NBTTagCompound par1NBTTagCompound)
-	{
-		super.writeEntityToNBT(par1NBTTagCompound);
-		par1NBTTagCompound.setFloat("soundTime", this.soundTime);
-		par1NBTTagCompound.setFloat("aggro", this.aggro);
-		par1NBTTagCompound.setInteger("aggroMax", this.aggroMax);
-		par1NBTTagCompound.setByte("textureState", this.textureState);
+		this.rotationYawHead = f2;
+		this.renderYawOffset = this.rotationYaw;
 	}
 
 	@Override
-	public void readEntityFromNBT(NBTTagCompound par1NBTTagCompound)
+	public void writeEntityToNBT(NBTTagCompound rootTag)
 	{
-		super.readEntityFromNBT(par1NBTTagCompound);
-		this.soundTime = par1NBTTagCompound.getFloat("soundTime");
+		super.writeEntityToNBT(rootTag);
+		rootTag.setInteger("Aggro", this.aggro);
+	}
 
-		//make them load with half aggro so they dont instantly teleport players
-		this.aggro = par1NBTTagCompound.getFloat("aggro")/2;
-		this.aggroMax = par1NBTTagCompound.getInteger("aggroMax");
-		this.textureState = par1NBTTagCompound.getByte("textureState");
+	@Override
+	public void readEntityFromNBT(NBTTagCompound rootTag)
+	{
+		super.readEntityFromNBT(rootTag);
+		
+		// Load Monoliths with half aggro so they don't teleport players instantly
+		this.aggro = (short) (rootTag.getInteger("Aggro") / 2);
 	}
 
 	@Override
@@ -282,7 +305,7 @@ public class MobMonolith extends EntityFlying implements IMob
 		@SuppressWarnings("rawtypes")
 		List list = this.worldObj.getEntitiesWithinAABBExcludingEntity(this, AxisAlignedBB.getBoundingBox( this.posX-15, posY-4, this.posZ-15, this.posX+15, this.posY+15, this.posZ+15));
 
-		if(this.worldObj.provider.dimensionId==DDProperties.instance().LimboDimensionID)
+		if (this.worldObj.provider.dimensionId == DDProperties.instance().LimboDimensionID)
 		{
 			if(list.size()>0)
 			{
@@ -302,9 +325,4 @@ public class MobMonolith extends EntityFlying implements IMob
 				this.worldObj.getCollidingBoundingBoxes(this, this.boundingBox).isEmpty() &&
 				!this.worldObj.isAnyLiquid(this.boundingBox);
 	}
-
-	public DataWatcher getDataWatcher()
-	{
-		return this.dataWatcher;
-	}
 }

src/main/java/StevenDimDoors/mod_pocketDim/ticking/RiftRegenerator.java

@@ -1,56 +1,121 @@
 package StevenDimDoors.mod_pocketDim.ticking;
 
-import java.util.Arrays;
-import java.util.List;
+import java.util.PriorityQueue;
 import java.util.Random;
 
+import net.minecraft.util.MathHelper;
 import net.minecraft.world.World;
 import net.minecraftforge.common.DimensionManager;
-import StevenDimDoors.mod_pocketDim.mod_pocketDim;
+import StevenDimDoors.mod_pocketDim.blocks.BlockRift;
 import StevenDimDoors.mod_pocketDim.core.DimLink;
-import StevenDimDoors.mod_pocketDim.core.NewDimData;
 import StevenDimDoors.mod_pocketDim.core.PocketManager;
 import StevenDimDoors.mod_pocketDim.util.Point4D;
 
 public class RiftRegenerator implements IRegularTickReceiver {
 	
-	private static final int RIFT_REGENERATION_INTERVAL = 200; //Regenerate random rifts every 200 ticks
-	private static final int RIFTS_REGENERATED_PER_DIMENSION = 5;
+	// Ranges of regeneration delays, in seconds
+	private static final int MIN_FAST_DELAY = 1;
+	private static final int MAX_FAST_DELAY = 3;
+	private static final int MIN_SLOW_DELAY = 5;
+	private static final int MAX_SLOW_DELAY = 15;
+	private static final int MIN_RESCHEDULE_DELAY = 4 * 60;
+	private static final int MAX_RESCHEDULE_DELAY = 6 * 60;
+	
+	private static final int TICKS_PER_SECOND = 20;
+	private static final int RIFT_REGENERATION_INTERVAL = 1; // Check the regeneration queue every tick
 	private static Random random = new Random();
 	
-	public RiftRegenerator(IRegularTickSender sender)
+	private long tickCount = 0;
+	private PriorityQueue<RiftTicket> ticketQueue;
+	private BlockRift blockRift;
+	
+	public RiftRegenerator(IRegularTickSender sender, BlockRift blockRift)
 	{
-		sender.registerForTicking(this, RIFT_REGENERATION_INTERVAL, false);
+		this.ticketQueue = new PriorityQueue<RiftTicket>();
+		this.blockRift = blockRift;
+		sender.registerReceiver(this, RIFT_REGENERATION_INTERVAL, false);
 	}
 	
 	@Override
 	public void notifyTick()
 	{
-		regenerateRiftsInLoadedWorlds();
+		processTicketQueue();
+		tickCount++;
 	}
 	
-	private static void regenerateRiftsInLoadedWorlds()
+	public void scheduleSlowRegeneration(DimLink link)
 	{
-		// Regenerate rifts that have been replaced (not permanently removed) by players
-		// Only do this in dimensions that are currently loaded
-		List<Integer> loadedWorlds = (List<Integer>) Arrays.asList(DimensionManager.getIDs());
-		for (Integer dimensionID : loadedWorlds)
-    	{
-			NewDimData dimension = PocketManager.getDimensionData(dimensionID);
-			if (dimension.linkCount() > 0)
-			{
-	    		World world = DimensionManager.getWorld(dimension.id());
+		scheduleRegeneration(link, MIN_SLOW_DELAY, MAX_SLOW_DELAY);
+	}
 	
-	    		if (world != null)
+	public void scheduleSlowRegeneration(int x, int y, int z, World world)
 	{
-	    			for (int count = 0; count < RIFTS_REGENERATED_PER_DIMENSION; count++)
+		scheduleRegeneration(PocketManager.getLink(x, y, z, world), MIN_SLOW_DELAY, MAX_SLOW_DELAY);
+	}
+	
+	public void scheduleFastRegeneration(int x, int y, int z, World world)
 	{
-						DimLink link = dimension.getRandomLink();
-	    				Point4D source = link.source();
-	    				mod_pocketDim.blockRift.regenerateRift(world, source.getX(), source.getY(), source.getZ(), random);
+		scheduleRegeneration(PocketManager.getLink(x, y, z, world), MIN_FAST_DELAY, MAX_FAST_DELAY);
+	}
+	
+	private void scheduleRegeneration(DimLink link, int minDelay, int maxDelay)
+	{
+		if (link != null)
+		{
+			int tickDelay = MathHelper.getRandomIntegerInRange(random, minDelay * TICKS_PER_SECOND, maxDelay * TICKS_PER_SECOND);
+			ticketQueue.add(new RiftTicket(link.source(), tickCount + tickDelay));
 		}
 	}
+	
+	private void processTicketQueue()
+	{
+		RiftTicket ticket;
+		while (!ticketQueue.isEmpty() && ticketQueue.peek().timestamp() <= tickCount)
+		{
+			ticket = ticketQueue.remove();
+			regenerateRift(ticket.location());
 		}
 	}
+
+	private void regenerateRift(Point4D location)
+	{
+		int x = location.getX();
+		int y = location.getY();
+		int z = location.getZ();
+		
+		// Try to regenerate a rift, or possibly reschedule its regeneration.
+		// The world for the given location must be loaded.
+		World world = DimensionManager.getWorld(location.getDimension());
+		if (world == null)
+			return;
+		
+		// There must be a link at the given location.
+		DimLink link = PocketManager.getLink(location);
+		if (link == null)
+			return;
+		
+		// The chunk at the given location must be loaded.
+		// Note: ChunkProviderServer.chunkExists() returns whether a chunk is
+		// loaded, not whether it has already been created.
+		if (!world.getChunkProvider().chunkExists(x >> 4, z >> 4))
+			return;
+		
+		// If the location is occupied by an immune DD block, then don't regenerate.
+		if (blockRift.isModBlockImmune(world, x, y, z))
+			return;
+		
+		// If the location is occupied by an immune block, then reschedule.
+		if (blockRift.isBlockImmune(world, x, y, z))
+		{
+			scheduleRegeneration(link, MIN_RESCHEDULE_DELAY, MAX_RESCHEDULE_DELAY);
 		}
+		else
+		{
+			// All of the necessary conditions have been met. Restore the rift!
+			int blockID = world.getBlockId(x, y, z);
+			if (world.setBlock(x, y, z, blockRift.blockID))
+				blockRift.dropWorldThread(blockID, world, x, y, z, random);
+		}
+	}
+	
 }

src/main/java/StevenDimDoors/mod_pocketDim/ticking/RiftTicket.java

@@ -0,0 +1,40 @@
+package StevenDimDoors.mod_pocketDim.ticking;
+
+import StevenDimDoors.mod_pocketDim.util.Point4D;
+
+public class RiftTicket implements Comparable<RiftTicket> {
+
+	private long timestamp;
+	private Point4D location;
+	
+	public RiftTicket(Point4D location, long timestamp)
+	{
+		this.timestamp = timestamp;
+		this.location = location;
+	}
+	
+	@Override
+	public int compareTo(RiftTicket other)
+	{
+		if (this.timestamp < other.timestamp)
+		{
+			return -1;
+		}
+		else if (this.timestamp > other.timestamp)
+		{
+			return 1;
+		}
+		return 0;
+	}
+	
+	public long timestamp()
+	{
+		return timestamp;
+	}
+	
+	public Point4D location()
+	{
+		return location;
+	}
+	
+}

src/main/java/StevenDimDoors/mod_pocketDim/ticking/ServerTickHandler.java

@@ -7,26 +7,31 @@ import StevenDimDoors.mod_pocketDim.core.DDTeleporter;
 import cpw.mods.fml.common.ITickHandler;
 import cpw.mods.fml.common.TickType;
 
-public class CommonTickHandler implements ITickHandler, IRegularTickSender
+public class ServerTickHandler implements ITickHandler, IRegularTickSender
 {
-	private static final String PROFILING_LABEL = "Dimensional Doors: Common Tick";
+	private static final String PROFILING_LABEL = "Dimensional Doors: Server Tick";
 	
 	private int tickCount = 0;
 	private ArrayList<RegularTickReceiverInfo> receivers;
 
-
-	public CommonTickHandler()
+	public ServerTickHandler()
 	{
 		this.receivers = new ArrayList<RegularTickReceiverInfo>();
 	}
 
 	@Override
-	public void registerForTicking(IRegularTickReceiver receiver, int interval, boolean onTickStart)
+	public void registerReceiver(IRegularTickReceiver receiver, int interval, boolean onTickStart)
 	{
 		RegularTickReceiverInfo info = new RegularTickReceiverInfo(receiver, interval, onTickStart);
 		receivers.add(info);
 	}
 	
+	@Override
+	public void unregisterReceivers()
+	{
+		receivers.clear();
+	}
+
 	@Override
 	public void tickStart(EnumSet<TickType> type, Object... tickData) 
 	{

src/main/java/StevenDimDoors/mod_pocketDim/tileentities/DDTileEntityBase.java

@@ -0,0 +1,13 @@
+package StevenDimDoors.mod_pocketDim.tileentities;
+import java.util.Random;
+import net.minecraft.tileentity.TileEntity;
+
+public abstract class DDTileEntityBase extends TileEntity
+{
+	/**
+	 * 
+	 * @return an array of floats representing RGBA color where 1.0 = 255.
+	 */
+	public abstract float[] getRenderColor(Random rand);
+	
+}