if(mappedPositions.containsKey(s)) {
String pos = mappedPositions.get(s);
String[] tokens = pos.split(":");
int worldId = Integer.parseInt(tokens[0]), x = Integer.parseInt(tokens[1]), y = Integer.parseInt(tokens[2]), z = Integer.parseInt(tokens[3]);
World world = server.worldServerForDimension(worldId);
Block srcBlock = world.getBlock(x, y, z);
int srcMeta = world.getBlockMetadata(x, y, z);
TileEntity tile = world.getTileEntity(x, y, z);
Material mat = srcBlock.getMaterial();