I am trying to send a NBT update to the client when a GUI button is clicked. 

I tried just setting the value, but it looks like it is only set for the client TileEntity, and not the server one. How can I send the value to the server?

I've seen that Minecraft uses a custom packet for that, but I have no idea how to use them, and I don't understand the documetion.

I saw how it is made for the CommandBlockScreen, but I am not sure how to handle these packets.

Also, the button just sends a TextField to the server, and it is checked again there - I just need to send two integers.

I tried implementing it with SimpleChannels, but I saw that Minecraft uses a custom packet.

So.. how do I exactly handle it? And register it? I don't understand the docs,  especially the "Registering Packets". I understand that the packet class should have functions for encoding and decoding the packets, but I don't really know how they should work.

INSTANCE.registerMessage(0, CSendNBTPacket.class ,CSendNBTPacket::encode, CSendNBTPacket::decode, CSendNBTPacket::ctx);

 

public class CSendNBTPacket
{
    public PacketBuffer encode(CSendNBTPacket packet)
    {
        return null;
    }

    public CSendNBTPacket decode(PacketBuffer buffer)
    {

    }

    public Supplier<NetworkEvent.Context> ctx()
    {
        return null;
    }
}

What am I doing wrong here? (ignoring the "return null;" part)

Okay, I think It might work now, but I still have no idea when to register them.

Should it be done from the main mod class or is there a registry event for that?

 

also, how do I make it actually handle it? I may be not experienced enough to understand it, but I don't think that just putting a "handle()" method will work.

Edited January 3, 20214 yr by bajtix

2 hours ago, diesieben07 said:

Not sure what you mean by "make it handle it".

If I understand correctly, the last parameter of the 

registerMessage()

function is the method that handles the data, right? I'm not sure if I understood the documentation.