public class SyncMessage implements IMessage, IMessageHandler<SyncMessage, IMessage>
{
    public BlockPos pos;
    public int value;

    public SyncMessage(BlockPos pos, int value)
    {
        this.pos = pos;
        this.value = value;
    }

    @Override
    public void fromBytes(ByteBuf buf)
    {
        pos = new BlockPos(buf.readInt(), buf.readInt(), buf.readInt());
        value = buf.readInt();
    }

    @Override
    public void toBytes(ByteBuf buf)
    {
        buf.writeInt(pos.getX());
        buf.writeInt(pos.getY());
        buf.writeInt(pos.getZ());
        buf.writeInt(value);
    }

    @Override
    public SyncMessage onMessage(SyncMessage message, MessageContext ctx)
    {
        TileEntity tile = Minecraft.getMinecraft().world.getTileEntity(message.pos);
        tile.setValue(message.value);
        return null;
    }
}