Implemented Chunk.getWorld()

src/main/java/org/bukkit/craftbukkit/CraftChunk.java

@@ -2,16 +2,28 @@
 package org.bukkit.craftbukkit;
 
 import org.bukkit.Chunk;
+import org.bukkit.World;
 
 public class CraftChunk implements Chunk {
+    private final CraftWorld world;
     private final int x;
     private final int z;
 
-    protected CraftChunk(final int x, final int z) {
+    protected CraftChunk(final CraftWorld world, final int x, final int z) {
+        this.world = world;
         this.x = x;
         this.z = z;
     }
 
+    /**
+     * Gets the world containing this chunk
+     *
+     * @return World
+     */
+    public World getWorld() {
+        return world;
+    }
+
     /**
      * Gets the X-coordinate of this chunk
      *

src/main/java/org/bukkit/craftbukkit/CraftWorld.java

@@ -52,7 +52,7 @@ public class CraftWorld implements World {
         Chunk chunk = chunkCache.get(loc);
 
         if (chunk == null) {
-            chunk = new CraftChunk(x, z);
+            chunk = new CraftChunk(this, x, z);
             chunkCache.put(loc, chunk);
         }