Improved fast mode.

BukkitWorld's fast lighting mode now also does what the old fast mode did.
In addition, both fast lighting mode and the fallback resend all modified chunks when done.
This should prevent display issues.

src/main/java/com/sk89q/worldedit/LocalWorld.java

@@ -326,5 +326,12 @@ public abstract class LocalWorld {
         return 127;
     }
 
+    /**
+     * Does some post-processing. Should be called after using fast mode
+     * 
+     * @param chunks the chunks to fix
+     */
+    public void fixAfterFastMode(Iterable<BlockVector2D> chunks) {}
+
     public void fixLighting(Iterable<BlockVector2D> chunks) {}
 }

src/main/java/com/sk89q/worldedit/bukkit/BukkitWorld.java

@@ -112,7 +112,7 @@ public class BukkitWorld extends LocalWorld {
             type = type & 255;
             final int previousOpacity = Block_lightOpacity[type];
             Block_lightOpacity[type] = 0;
-            final boolean ret = block.setTypeId(type);
+            final boolean ret = block.setTypeId(type, false);
             Block_lightOpacity[type] = previousOpacity;
             return ret;
         }
@@ -146,7 +146,7 @@ public class BukkitWorld extends LocalWorld {
             type = type & 255;
             final int previousOpacity = Block_lightOpacity[type];
             Block_lightOpacity[type] = 0;
-            final boolean ret = block.setTypeIdAndData(type, (byte) data, true);
+            final boolean ret = block.setTypeIdAndData(type, (byte) data, false);
             Block_lightOpacity[type] = previousOpacity;
             return ret;
         }
@@ -731,27 +731,34 @@ public class BukkitWorld extends LocalWorld {
         return world.getMaxHeight() - 1;
     }
 
+    @Override
+    public void fixAfterFastMode(Iterable<BlockVector2D> chunks) {
+        if (fastLightingAvailable) {
+            fixLighting(chunks);
+        }
+        
+        for (BlockVector2D chunkPos : chunks) {
+            world.refreshChunk(chunkPos.getBlockX(), chunkPos.getBlockZ());
+        }
+    }
+
     private static final int chunkSizeX = 16;
     private static final int chunkSizeY = 128;
     private static final int chunkSizeZ = 16;
 
     @Override
     public void fixLighting(Iterable<BlockVector2D> chunks) {
-        if (!fastLightingAvailable) {
-            return;
-        }
-
         try {
             Object notchWorld = CraftWorld_getHandle.invoke(world);
             for (BlockVector2D chunkPos : chunks) {
-                int chunkX = chunkPos.getBlockX();
-                int chunkZ = chunkPos.getBlockZ();
+                final int chunkX = chunkPos.getBlockX();
+                final int chunkZ = chunkPos.getBlockZ();
 
-                Object notchChunk = World_getChunkFromChunkCoords.invoke(notchWorld, chunkX, chunkZ);
+                final Object notchChunk = World_getChunkFromChunkCoords.invoke(notchWorld, chunkX, chunkZ);
 
                 // Fix skylight
                 final byte[] blocks = (byte[])Chunk_blocks.get(notchChunk);
-                int length = blocks.length;
+                final int length = blocks.length;
                 Chunk_skylightMap.set(notchChunk, NibbleArray_ctor.newInstance(length, 7));
 
                 Chunk_generateSkylightMap.invoke(notchChunk);
@@ -760,12 +767,12 @@ public class BukkitWorld extends LocalWorld {
                 Chunk_blocklightMap.set(notchChunk, NibbleArray_ctor.newInstance(length, 7));
 
                 for (int x = 0; x < chunkSizeX; ++x) {
-                    boolean xBorder = x == 0 || x == chunkSizeX - 1;
+                    final boolean xBorder = x == 0 || x == chunkSizeX - 1;
                     for (int z = 0; z < chunkSizeZ; ++z) {
-                        boolean zBorder = z == 0 || z == chunkSizeZ - 1;
+                        final boolean zBorder = z == 0 || z == chunkSizeZ - 1;
                         for (int y = 0; y < chunkSizeY; ++y) {
                             final int index = y + z * chunkSizeY + x * chunkSizeY * chunkSizeZ;
-                            byte blockID = blocks[index];
+                            final byte blockID = blocks[index];
                             if (BlockType.emitsLight(blockID))  {
                                 Chunk_relightBlock.invoke(notchChunk, x, y, z);
                             }