THE UPDATE

Merging months of dev work into master. The update is playable, but
untested.

StevenDimDoors/mod_pocketDim/blocks/TransTrapdoor.java

@@ -0,0 +1,121 @@
+package StevenDimDoors.mod_pocketDim.blocks;
+
+import java.util.Random;
+
+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.item.ItemDoor;
+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.NewDimData;
+import StevenDimDoors.mod_pocketDim.core.PocketManager;
+import StevenDimDoors.mod_pocketDim.items.BaseItemDoor;
+import StevenDimDoors.mod_pocketDim.tileentities.TileEntityTransTrapdoor;
+
+public class TransTrapdoor extends BlockTrapDoor implements IDimDoor, ITileEntityProvider
+{
+
+	public TransTrapdoor(int blockID, Material material) 
+	{
+		super(blockID, material);
+		this.setCreativeTab(mod_pocketDim.dimDoorsCreativeTab);
+	}
+
+	@Override
+	public void registerIcons(IconRegister par1IconRegister)
+	{
+		this.blockIcon = par1IconRegister.registerIcon(mod_pocketDim.modid + ":" + this.getUnlocalizedName2());
+	}
+
+	//Teleports the player to the exit link of that dimension, assuming it is a pocket
+	@Override
+	public void onEntityCollidedWithBlock(World world, int x, int y, int z, Entity entity)
+	{
+		enterDimDoor(world, x, y, z, entity);
+	}
+
+	@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);
+			}
+		}
+	}	
+
+	@Override
+	public void onBlockAdded(World world, int x, int y, int z) 
+	{
+		this.placeLink(world, x, y, z);
+		world.setBlockTileEntity(x, y, z, this.createNewTileEntity(world));
+		this.updateAttachedTile(world, x, y, z);
+	}
+	
+	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
+	public TileEntity createNewTileEntity(World world) 
+	{
+		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);
+			DimLink link = dimension.getLink(x, y, z);
+			if (link == null && dimension.isPocketDimension())
+			{
+				dimension.createLink(x, y, z, LinkTypes.UNSAFE_EXIT);
+			}
+		}
+	}
+
+	
+	@Override
+	public int idDropped(int metadata, Random random, int fortuneLevel)
+    {
+        return getDrops();
+    }
+
+	@Override
+	public int getDrops()
+	{
+		return  Block.trapdoor.blockID;
+	}	
+	
+	public static boolean isTrapdoorSetLow(int metadata)
+	{
+		return (metadata & 8) == 0;
+	}
+}