Completed Changes to Stabilized Rift Signature

Completed the change to Stabilized Rift Signatures so that overwriting
links that already belonged to an SRS is done for free.

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

@@ -219,6 +219,7 @@ 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);
@@ -244,10 +245,16 @@ 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

@@ -52,10 +52,10 @@ public class ItemStabilizedRiftSignature extends ItemRiftSignature
 		if (source != null)
 		{
 			// Yes, it's initialized.
-			DimLink link;
-			DimLink reverse;
 			NewDimData sourceDimension = PocketManager.getDimensionData(source.getDimension());
 			NewDimData destinationDimension = PocketManager.getDimensionData(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
@@ -63,7 +63,7 @@ public class ItemStabilizedRiftSignature extends ItemRiftSignature
 			// intention of overwriting the source-side link to point there.
 			// Those benign redirection operations will be handled for free.
 			
-			if (false) //TODO Add proper check!
+			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(), LinkTypes.NORMAL, source.getOrientation());