IChunkProvider cProvider = event.getChunk().worldObj.getChunkProvider();
Chunk[] neighbors = new Chunk[5];
neighbors[0] = event.getChunk();
if(cProvider.chunkExists(x + 1, z)) neighbors[1] = cProvider.provideChunk(x + 1, z);
if(cProvider.chunkExists(x - 1, z)) neighbors[2] = cProvider.provideChunk(x - 1, z);
if(cProvider.chunkExists(x, z + 1)) neighbors[3] = cProvider.provideChunk(x, z + 1);
if(cProvider.chunkExists(x, z - 1)) neighbors[4] = cProvider.provideChunk(x, z - 1);
for(Chunk c : neighbors)