@Override public void sendBlockChange(int x, int y, int z, BlockState state) { checkNotNull(state, "state"); S23PacketBlockChange packet = new S23PacketBlockChange(); packet.blockPosition = new BlockPos(x, y, z); packet.blockState = (IBlockState) state; for (EntityPlayer player : this.playerEntities) { if (player instanceof EntityPlayerMP) { ((EntityPlayerMP) player).playerNetServerHandler.sendPacket(packet); } } }