Hi,

 

So like the topic says, I seem to be having trouble making my GUI stay updated when I want to give my entity a new name.

 

I have the standard keyTyped function for imputing the characters in the GUI, and I have a datawatcher keeping track of the nickname that results from it.

 

While in the game, it works fine, but the second I log out it reverts back to the regular name, rather than saving the nickname.

 

I figure this is a problem with the client and server not communicating, but I am unsure of why it is happening, and I would be greatly appreciative for some advice.

 

 

If this isn't enough information to go on, someone chew me out for it and I'll post up the code as well

You didn't tell the server that the name changed.

 

(Client-Server disparity.  You need a packet handler)

You didn't tell the server that the name changed.

 

(Client-Server disparity.  You need a packet handler)

 

 

Ah! But I do have a packet handler.

Granted, I am willing to admit that I probably am not using it right.

 

 

Okay, fine, I'm not entirely sure at all what I am doing when it comes to the packet handler.

 

I'm going to assume the packet function goes something along the lines of

try {
					if () {}
}

 

I suppose I am puzzled somewhat on what to add to the if condition.

 

 

 

Edit: Actually, here is just my whole packet handler.

import java.io.ByteArrayInputStream;
import java.io.DataInputStream;
import java.io.IOException;

import net.minecraft.network.INetworkManager;
import net.minecraft.network.packet.Packet250CustomPayload;

import cpw.mods.fml.common.FMLCommonHandler;
import cpw.mods.fml.common.network.IPacketHandler;
import cpw.mods.fml.common.network.Player;

public class ModPacketHandler implements IPacketHandler {

        @Override
        public void onPacketData(INetworkManager manager,
                        Packet250CustomPayload packet, Player player) {
                
                if (packet.channel.equals("TestMod")) {
                        handlePacket(packet);
                }
        }
        
        public void handlePacket(Packet250CustomPayload packet){
    		
    		DataInputStream inputStream = new DataInputStream(new ByteArrayInputStream(packet.data));
    			
    		int randomInt1;
    		int randomInt2;
    	
    		try {
    			
    			if () {
    				
    			}
    		

    			
    		}catch(IOException e){
    			
    			e.printStackTrace();
    			return;
    			
    		}
    		
    		
    	
    	}

    }

You didn't tell the server that the name changed.

 

(Client-Server disparity.  You need a packet handler)

 

That, or he hasn't written the new name to NBT... That might help if he isn't doing that.

You didn't tell the server that the name changed.

 

(Client-Server disparity.  You need a packet handler)

 

That, or he hasn't written the new name to NBT... That might help if he isn't doing that.

 

The new name should be updated via the dataWatcher, unless I missed something.

 

I'll post those too, incase I am missing something very simple.

dataWatcher.addObject(3, ""); 
//in the constructor

nbt.setString("nickname", dataWatcher.getWatchableObjectString(3));
dataWatcher.updateObject(3, nbt.getString("nickname"));
// Write and Read NBT functions respectively.

public String getNickname()
    {
    	if (dataWatcher.getWatchableObjectString(3).equals(""))
    		return name;		
    	return dataWatcher.getWatchableObjectString(3);
    }
public void setNickname(String nickname)
    {
    	dataWatcher.updateObject(3, nickname);
    }

That, or he hasn't written the new name to NBT... That might help if he isn't doing that.

 

I generally assume that people are using their NBTs correctly.  They're so trivially easy to get right (compared to packet handlers and data watchers*).

But yes, it is a possibility.

 

*Still have no idea what these are needed for myself....

Bump in case anyone can point me in the right direction on the packet handler.

Here is how I handle packets for my tile entities, should be similar for other things too.

 

also here is how i'm sending the packets

ByteArrayOutputStream bos =
			new ByteArrayOutputStream(s.length() + 12);
		DataOutputStream outputStream = new DataOutputStream(bos);

		try
		{
			outputStream.writeInt(x);
			outputStream.writeInt(y);
			outputStream.writeInt(z);

			outputStream.writeUTF(s);
		}
		catch (IOException e)
		{
			e.printStackTrace();
		}

		Packet250CustomPayload packet = new Packet250CustomPayload();
		packet.channel = MyPacketHandler.proxDet;
		packet.data = bos.toByteArray();
		packet.length = bos.size();

		PacketDispatcher.sendPacketToServer(packet);

 

full class here

Here is how I handle packets for my tile entities, should be similar for other things too.

 

also here is how i'm sending the packets

ByteArrayOutputStream bos =
			new ByteArrayOutputStream(s.length() + 12);
		DataOutputStream outputStream = new DataOutputStream(bos);

		try
		{
			outputStream.writeInt(x);
			outputStream.writeInt(y);
			outputStream.writeInt(z);

			outputStream.writeUTF(s);
		}
		catch (IOException e)
		{
			e.printStackTrace();
		}

		Packet250CustomPayload packet = new Packet250CustomPayload();
		packet.channel = MyPacketHandler.proxDet;
		packet.data = bos.toByteArray();
		packet.length = bos.size();

		PacketDispatcher.sendPacketToServer(packet);

 

full class here

 

Thanks! This makes a bit more sense now, and I think I see what I have done wrong.