@Override
public void updateBetweenY(int minY, int maxY)
{
    World world = SchematicWorldHandler.getSchematicWorld();

    if (world != null)
    {
        RenderGlobal rg = LitematicaRenderer.getInstance().getWorldRenderer();
        Long2ObjectMap<Chunk> schematicChunks = ((IMixinChunkProviderClient) (Object) world.getChunkProvider()).getLoadedChunks();
        Long2ObjectMap<Chunk> clientChunks = ((IMixinChunkProviderClient) (Object) Minecraft.getMinecraft().world.getChunkProvider()).getLoadedChunks();

        for (Chunk chunk : schematicChunks.values())
        {
            // Only mark chunks that are actually rendered (if the schematic world contains more chunks)
            if (chunk.isEmpty() == false && clientChunks.containsKey(ChunkPos.asLong(chunk.x, chunk.z)))
            {
                rg.markBlockRangeForRenderUpdate((chunk.x << 4) - 1, minY, (chunk.z << 4) - 1, (chunk.x << 4) + 16, maxY, (chunk.z << 4) + 16);
            }
        }
    }
}
 

private static int getSpawnMode(Chunk chunk, int x, int y, int z) {
    World world = chunk.getWorld();
    BlockPos pos = new BlockPos(x, y, z);
    if (!SpawnerAnimals.canCreatureTypeSpawnAtLocation(SpawnPlacementType.ON_GROUND, world, pos) ||
            chunk.getLightFor(EnumSkyBlock.BLOCK, pos) >= 8)
        return 0;

    c.set(x+0.2, y+0.01, z+0.2, x+0.8, y+1.8, z+0.8);
    AxisAlignedBB aabb = c.aabb();
    if (!world.checkNoEntityCollision(aabb) ||
            !world.getCollidingBoundingBoxes(dummyEntity, aabb).isEmpty() ||
            world.isAnyLiquid(aabb))
        return 0;

    if (chunk.getLightFor(EnumSkyBlock.SKY, pos) >= 8)
        return 1;
    return 2;
}
 

@SubscribeEvent
public void onChunkLoad(ChunkEvent.Load event) {
    IChunk chunk = event.getChunk();
    Map<BlockPos, TileEntity> tiles = null;
    if (chunk instanceof ChunkPrimerWrapper) {
        chunk = ((ChunkPrimerWrapper) chunk).func_217336_u();
    }
    if (chunk instanceof Chunk) {
        tiles = ((Chunk) chunk).getTileEntityMap();
    }
    if (chunk instanceof ChunkPrimer) {
        tiles = ((ChunkPrimer) chunk).getTileEntities();
    }
    if (tiles != null) {
        for (TileEntity tile : tiles.values()) {
            if (tile instanceof IChunkLoadTile) {
                ((IChunkLoadTile) tile).onChunkLoad();
            }
        }
    }
}
 

public static MwChunk copyToMwChunk(Chunk chunk) {
	
	byte[][] msbArray = new byte[16][];
	byte[][] lsbArray = new byte[16][];
	byte[][] metaArray = new byte[16][];
	byte[][] lightingArray = new byte[16][];
	
	ExtendedBlockStorage[] storageArrays = chunk.getBlockStorageArray();
	if (storageArrays != null) {
		for (ExtendedBlockStorage storage : storageArrays) {
			if (storage != null) {
				int y = (storage.getYLocation() >> 4) & 0xf;
				lsbArray[y] = storage.getBlockLSBArray();
				msbArray[y] = (storage.getBlockMSBArray() != null) ? storage.getBlockMSBArray().data : null;
				metaArray[y] = (storage.getMetadataArray() != null) ? storage.getMetadataArray().data : null;
				lightingArray[y] = (storage.getBlocklightArray() != null) ? storage.getBlocklightArray().data : null;
			}
		}
	}
	
	return new MwChunk(chunk.xPosition, chunk.zPosition, chunk.worldObj.provider.dimensionId,
			msbArray, lsbArray, metaArray, lightingArray, chunk.getBiomeArray());
}
 

/**
 * Initializes an entities type on construction to specify what group this
 * entity is in for activation ranges.
 *
 * @param entity
 * @return group id
 */
public static byte initializeEntityActivationType(Entity entity)
{
    Chunk chunk = null;
    // Cauldron start - account for entities that dont extend EntityMob, EntityAmbientCreature, EntityCreature
    if ( entity instanceof EntityMob || entity instanceof EntitySlime || entity.isCreatureType(EnumCreatureType.monster, false)) // Cauldron - account for entities that dont extend EntityMob
    {
        return 1; // Monster
    } else if ( entity instanceof EntityCreature || entity instanceof EntityAmbientCreature || entity.isCreatureType(EnumCreatureType.creature, false) 
             || entity.isCreatureType(EnumCreatureType.waterCreature, false) || entity.isCreatureType(EnumCreatureType.ambient, false))
    {
        return 2; // Animal
    // Cauldron end
    } else
    {
        return 3; // Misc
    }
}
 

@Nonnull
@Override
public Chunk generateChunk(int x, int z)
{
	ChunkPrimer chunkprimer = new ChunkPrimer();

	// Get a list of blocks to check lighting for, as a "side effect" of
	// actually generating the clouds
	List<Pair<BlockPos, BlockPos>> litBlocks = generate(x, z, chunkprimer);

	Chunk chunk = new Chunk(world, chunkprimer, x, z);

	litBlocks.forEach(pair ->
	{
		BlockPos lower = pair.getFirst();
		BlockPos upper = pair.getSecond();
		for (int i = 0; i < 15; i++)
		{
			if (lower.getY() + i > upper.getY()) return;
			chunk.setLightFor(EnumSkyBlock.BLOCK, lower.up(i), 15 - i);
		}
	});
	
	return chunk;
}
 

private void setSemiBlock(World world, int x, int y, int z, ISemiBlock semiBlock, Chunk chunk){
    if(semiBlock != null && !registeredTypes.containsValue(semiBlock.getClass())) throw new IllegalStateException("ISemiBlock \"" + semiBlock + "\" was not registered!");
    ChunkPosition pos = new ChunkPosition(x, y, z);
    if(semiBlock != null) {
        semiBlock.initialize(world, pos);
        addingBlocks.add(semiBlock);
    } else {
        ISemiBlock removedBlock = getOrCreateMap(chunk).get(pos);
        if(removedBlock != null) {
            removedBlock.invalidate();
            for(EntityPlayerMP player : syncList.get(chunk)) {
                NetworkHandler.sendTo(new PacketSetSemiBlock(pos, null), player);
            }
        }
    }
    chunk.setChunkModified();
}
 

public static void markSchematicChunkForRenderUpdate(BlockPos pos)
{
    World world = SchematicWorldHandler.getSchematicWorld();

    if (world != null)
    {
        Long2ObjectMap<Chunk> schematicChunks = ((IMixinChunkProviderClient) (Object) world.getChunkProvider()).getLoadedChunks();
        Long2ObjectMap<Chunk> clientChunks = ((IMixinChunkProviderClient) (Object) Minecraft.getMinecraft().world.getChunkProvider()).getLoadedChunks();
        long key = ChunkPos.asLong(pos.getX() >> 4, pos.getZ() >> 4);

        if (schematicChunks.containsKey(key) && clientChunks.containsKey(key))
        {
            RenderGlobal rg = LitematicaRenderer.getInstance().getWorldRenderer();
            rg.markBlockRangeForRenderUpdate(pos.getX() - 1, pos.getY() - 1, pos.getZ() - 1,pos.getX() + 1, pos.getY() + 1, pos.getZ() + 1);
        }
    }
}
 

public static WizardryChunk get(Chunk chunk)
{
	WizardryChunk cap = chunk.getCapability(capability(), null);
	if (cap == null)
		throw new IllegalStateException("Missing capability: " + chunk.getWorld().getWorldInfo().getWorldName() + "/" + chunk.getWorld().provider.getDimensionType().getName() + "/(" + chunk.x + ","+ chunk.z + ")");
	return cap;
}
 

public boolean hasEntities(Chunk nmsChunk) {
    ClassInheritanceMultiMap<Entity>[] entities = nmsChunk.getEntityLists();
    for (int i = 0; i < entities.length; i++) {
        ClassInheritanceMultiMap<Entity> slice = entities[i];
        if (slice != null && !slice.isEmpty()) {
            return true;
        }
    }
    return false;
}
 

public boolean hasEntities(Chunk nmsChunk) {
    ClassInheritanceMultiMap<Entity>[] entities = nmsChunk.getEntityLists();
    for (int i = 0; i < entities.length; i++) {
        ClassInheritanceMultiMap<Entity> slice = entities[i];
        if (slice != null && !slice.isEmpty()) {
            return true;
        }
    }
    return false;
}
 

@Nullable
public static TileEntity getTileSafe(IBlockAccess worldIn, BlockPos pos) {
	TileEntity target = worldIn instanceof ChunkCache ? 
			((ChunkCache)worldIn).getTileEntity(pos, Chunk.EnumCreateEntityType.CHECK)
			: 
			worldIn.getTileEntity(pos);
	return target;
}
 

@Override
public void setHeightMap(FaweChunk chunk, byte[] heightMap) {
    Chunk forgeChunk = (Chunk) chunk.getChunk();
    if (forgeChunk != null) {
        int[] otherMap = forgeChunk.getHeightMap();
        for (int i = 0; i < heightMap.length; i++) {
            int newHeight = heightMap[i] & 0xFF;
            int currentHeight = otherMap[i];
            if (newHeight > currentHeight) {
                otherMap[i] = newHeight;
            }
        }
    }
}
 

private Map<ChunkPosition, ISemiBlock> getOrCreateMap(Chunk chunk){
    Map<ChunkPosition, ISemiBlock> map = semiBlocks.get(chunk);
    if(map == null) {
        map = new HashMap<ChunkPosition, ISemiBlock>();
        semiBlocks.put(chunk, map);
        syncList.put(chunk, new HashSet<EntityPlayerMP>());
    }
    return map;
}
 

@Override
public ExtendedBlockStorage[] getCachedSections(World world, int cx, int cz) {
    Chunk chunk = world.getChunkProvider().getLoadedChunk(cx, cz);
    if (chunk != null) {
        return chunk.getBlockStorageArray();
    }
    return null;
}
 

@Override
public void add(long key, Object value) {
	if(value instanceof Chunk)
	{
		Chunk c = (Chunk) value;
		chunkt_TH.put(c);
		vanilla.put(V2B(key), c);
	}
}
 

@Override
public void exec(String input) {
    if (!this.clamp(input, 2, 2)) {
        this.printUsage();
        return;
    }

    final Minecraft mc = Minecraft.getMinecraft();
    final BlockPos pos = mc.player.getPosition();
    final Chunk chunk = mc.world.getChunk(pos);
    final Biome biome = chunk.getBiome(pos, mc.world.getBiomeProvider());

    System.out.println(biome.getSpawnableList(EnumCreatureType.CREATURE));
}
 

@Override
public CompoundTag getTileEntity(Chunk chunk, int x, int y, int z) {
    Map<BlockPos, TileEntity> tiles = chunk.getTileEntityMap();
    pos.setPos(x, y, z);
    TileEntity tile = tiles.get(pos);
    return tile != null ? getTag(tile) : null;
}
 

private void addSearcher(Chunk chunk, Block block, int dimensionId)
{
	stopPool2Tasks();
	
	ChunkSearcher searcher = new ChunkSearcher(chunk, block, dimensionId);
	searchers.put(chunk, searcher);
	searcher.startSearching(pool1);
}
 

/**
 * @param world
 * @param oldPos
 * @param newPos
 * @param physicsObjectOptional Used when we're using this to copy from world to physics object;
 *                              should be empty when other way around.
 */
public static void copyBlockToPos(World world, BlockPos oldPos, BlockPos newPos,
    Optional<PhysicsObject> physicsObjectOptional) {
    // To avoid any updates crap, just edit the chunk data array directly.
    // These look switched, but trust me they aren't
    IBlockState oldState = world.getBlockState(newPos);
    IBlockState newState = world.getBlockState(oldPos);
    // A hacky way to set the block state within the chunk while avoiding any block updates.
    Chunk chunkToSet = world.getChunk(newPos);
    int storageIndex = newPos.getY() >> 4;
    // Check that we're placing the block in a valid position
    if (storageIndex < 0 || storageIndex >= chunkToSet.storageArrays.length) {
        // Invalid position, abort!
        return;
    }
    if (chunkToSet.storageArrays[storageIndex] == Chunk.NULL_BLOCK_STORAGE) {
        chunkToSet.storageArrays[storageIndex] = new ExtendedBlockStorage(storageIndex << 4,
            true);
    }
    chunkToSet.storageArrays[storageIndex]
        .set(newPos.getX() & 15, newPos.getY() & 15, newPos.getZ() & 15, newState);
    // Only want to send the update to clients and nothing else, so we use flag 2.
    world.notifyBlockUpdate(newPos, oldState, newState, 2);
    // Pretty messy to put this here but it works. Basically the ship keeps track of which of its chunks are
    // actually being used for performance reasons.
    if (physicsObjectOptional.isPresent()) {
        int minChunkX = physicsObjectOptional.get()
            .getOwnedChunks()
            .minX();
        int minChunkZ = physicsObjectOptional.get()
            .getOwnedChunks()
            .minZ();
    }
    // Now that we've copied the block to the position, copy the tile entity
    copyTileEntityToPos(world, oldPos, newPos, physicsObjectOptional);
}
 

private void addSearchersInRange(ChunkPos center, int chunkRange,
	Block block)
{
	ArrayList<Chunk> chunksInRange = getChunksInRange(center, chunkRange);
	
	for(Chunk chunk : chunksInRange)
	{
		if(searchers.containsKey(chunk))
			continue;
		
		addSearcher(chunk, block);
	}
}
 

@Override
public Chunk loadChunk(World world, int x, int z, boolean generate) {
    ChunkProviderServer provider = (ChunkProviderServer) world.getChunkProvider();
    if (generate) {
        return provider.provideChunk(x, z);
    } else {
        return provider.loadChunk(x, z);
    }
}
 

@Override
public CompoundTag getTileEntity(Chunk chunk, int x, int y, int z) {
    Map<BlockPos, TileEntity> tiles = chunk.getTileEntityMap();
    pos.setPos(x, y, z);
    TileEntity tile = tiles.get(pos);
    return tile != null ? getTag(tile) : null;
}
 

private void addSearcher(Chunk chunk, Block block)
{
	stopPool2Tasks();
	
	ChunkSearcher searcher = new ChunkSearcher(chunk, block);
	searchers.put(chunk, searcher);
	searcher.startSearching(pool1);
}
 

@Override
public CompoundTag getTileEntity(Chunk chunk, int x, int y, int z) {
    Map<BlockPos, TileEntity> tiles = chunk.getTileEntityMap();
    pos.setPos(x, y, z);
    TileEntity tile = tiles.get(pos);
    return tile != null ? getTag(tile) : null;
}
 

public synchronized void saveChunks() {
	for (Map.Entry<Chunk, Integer> entry : this.chunkMap.entrySet()) {
		int flags = entry.getValue();
		if ((flags & VIEWED_FLAG) != 0) {
			this.addSaveChunkTask(entry.getKey());
		}
	}
}
 

@Override
public CompoundTag getTileEntity(Chunk chunk, int x, int y, int z) {
    Map<BlockPos, TileEntity> tiles = chunk.getTileEntityMap();
    pos.set(x, y, z);
    TileEntity tile = tiles.get(pos);
    return tile != null ? getTag(tile) : null;
}
 

@Override
public ExtendedBlockStorage[] getCachedSections(World world, int cx, int cz) {
    Chunk chunk = world.getChunkProvider().getLoadedChunk(cx, cz);
    if (chunk != null) {
        return chunk.getBlockStorageArray();
    }
    return null;
}
 

/**
 * Driver for the update loop. If the machine is assembled, runs
 * the game logic update method.
 * @see erogenousbeef.core.multiblock.MultiblockControllerBase#update() //TODO Fix this Javadoc
 */
public final void updateMultiblockEntity() {
	if(connectedParts.isEmpty()) {
		// This shouldn't happen, but just in case...
		MultiblockRegistry.addDeadController(this.worldObj, this);
		return;
	}

	if(this.assemblyState != AssemblyState.Assembled) {
		// Not assembled - don't run game logic
		return;
	}

	if(worldObj.isRemote) {
		updateClient();
	}
	else if(updateServer()) {
		// If this returns true, the server has changed its internal data. 
		// If our chunks are loaded (they should be), we must mark our chunks as dirty.
		if(minimumCoord != null && maximumCoord != null &&
				 this.worldObj.checkChunksExist(minimumCoord.x, minimumCoord.y, minimumCoord.z,
						 						maximumCoord.x, maximumCoord.y, maximumCoord.z)) {
			int minChunkX = minimumCoord.x >> 4;
			int minChunkZ = minimumCoord.z >> 4;
			int maxChunkX = maximumCoord.x >> 4;
			int maxChunkZ = maximumCoord.z >> 4;
			
			for(int x = minChunkX; x <= maxChunkX; x++) {
				for(int z = minChunkZ; z <= maxChunkZ; z++) {
					// Ensure that we save our data, even if the our save delegate is in has no TEs.
					Chunk chunkToSave = this.worldObj.getChunkFromChunkCoords(x, z);
					chunkToSave.setChunkModified();
				}
			}
		}
	}
	// Else: Server, but no need to save data.
}
 

private StructureStart forceStructureStart(IWorld worldIn, ChunkGenerator <? extends ChunkGeneratorConfig > generator, Random rand, long packedChunkPos)
{
    ChunkPos chunkpos = new ChunkPos(packedChunkPos);
    StructureStart structurestart;

    Chunk ichunk = worldIn.getChunk(chunkpos.x, chunkpos.z, ChunkStatus.STRUCTURE_STARTS, false);

    if (ichunk != null)
    {
        structurestart = ichunk.getStructureStart(this.getName());

        if (structurestart != null && structurestart != StructureStart.DEFAULT)
        {
            return structurestart;
        }
    }
    Biome biome_1 = generator.getBiomeSource().getBiomeForNoiseGen((chunkpos.getStartX() + 9) >> 2, 0, (chunkpos.getStartZ() + 9) >> 2 );
    StructureStart structurestart1 = getStructureStartFactory().create((StructureFeature)(Object)this, chunkpos.x, chunkpos.z, BlockBox.empty(),0,generator.getSeed());
    structurestart1.initialize(generator, ((ServerWorld)worldIn).getStructureManager() , chunkpos.x, chunkpos.z, biome_1);
    structurestart = structurestart1.hasChildren() ? structurestart1 : StructureStart.DEFAULT;

    if (structurestart.hasChildren())
    {
        worldIn.getChunk(chunkpos.x, chunkpos.z).setStructureStart(this.getName(), structurestart);
    }

    //long2objectmap.put(packedChunkPos, structurestart);
    return structurestart;
}