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[SOLVED]Changing NBTTagName on Keypress


Taji34

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Okay, so I am trying to get the name of a NBTTag to change when I press a key, however when I press the key the name is not changing. I have it print the name to the console on right click, but the name just stays at what it was initialized at. Here is my code:

 

Baton.java:

package taji34.troncraft;
import cpw.mods.fml.client.registry.KeyBindingRegistry.KeyHandler;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.client.settings.KeyBinding;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTBase;
import net.minecraft.nbt.NBTTagByte;
import net.minecraft.nbt.NBTTagString;
import net.minecraft.world.World;
public class Baton extends Item {
public Baton(int par1) {
	super(par1);
	setMaxStackSize(1);
	setCreativeTab(CreativeTabs.tabMisc);
	setUnlocalizedName("Baton");
}
NBTTagByte data = new NBTTagByte("Test1");
    @Override
    @SideOnly(Side.CLIENT)
    public void registerIcons(IconRegister iconRegister) {
        this.itemIcon = iconRegister.registerIcon("Troncraft:Baton");
    }
public static KeyBinding mode = new KeyBinding("Baton Staff Mode", 36);   
public void keyboardEvent(KeyBinding keybinding)
    {
		if(keybinding == mode)
		{	
			if(!(data.getName().equals("Test2"))){
				data.setName("Test2");
			}
		}
    }
    
    public ItemStack onItemRightClick(ItemStack par1ItemStack, World par2World, EntityPlayer par3EntityPlayer)
    {
       System.out.println(data.getName());
    	return par1ItemStack;
    }
    
}

 

Troncraft.java:

package taji34.troncraft;
import net.minecraft.block.Block;
import net.minecraft.client.renderer.entity.RenderSnowball;
import net.minecraft.client.renderer.entity.RenderManager;
import net.minecraft.client.settings.KeyBinding;
import net.minecraft.entity.projectile.EntitySnowball;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.src.ModLoader;
import cpw.mods.fml.client.registry.KeyBindingRegistry;
import cpw.mods.fml.client.registry.KeyBindingRegistry.KeyHandler;
import cpw.mods.fml.client.registry.RenderingRegistry;
import cpw.mods.fml.common.Mod;
import cpw.mods.fml.common.Mod.EventHandler;
import cpw.mods.fml.common.Mod.Init;
import cpw.mods.fml.common.Mod.Instance;
import cpw.mods.fml.common.Mod.PostInit;
import cpw.mods.fml.common.Mod.PreInit;
import cpw.mods.fml.common.SidedProxy;
import cpw.mods.fml.common.event.FMLInitializationEvent;
import cpw.mods.fml.common.event.FMLPostInitializationEvent;
import cpw.mods.fml.common.event.FMLPreInitializationEvent;
import cpw.mods.fml.common.network.NetworkMod;
import cpw.mods.fml.common.registry.EntityRegistry;
import cpw.mods.fml.common.registry.GameRegistry;
import cpw.mods.fml.common.registry.LanguageRegistry;
@Mod(modid="Troncraft", name="Troncraft", version="0.0.1")
@NetworkMod(clientSideRequired=true, serverSideRequired=false)
public class Troncraft {
        // The instance of your mod that Forge uses.
        @Instance("Troncraft")
        public static Troncraft instance;
        public final static Item identityDisk = new IdentityDisk(5001);
        int diskItemID = identityDisk.itemID;
    	private final static Item baton = new Baton(5002);
    	int batonItemID = baton.itemID;
    	KeyBinding[] bindings = { Baton.mode };
    	TajiKeyHandler keyHandler;
        // Says where the client and server 'proxy' code is loaded.
        @SidedProxy(clientSide="taji34.troncraft.client.ClientProxy", serverSide="taji34.troncraft.CommonProxy")
        public static CommonProxy proxy;
        @EventHandler
        public void preInit(FMLPreInitializationEvent event) {
                // Stub Method
        }
        @EventHandler
        public void load(FMLInitializationEvent event) {
            LanguageRegistry.addName(identityDisk, "Identity Disk");
            LanguageRegistry.addName(baton, "Baton");
            EntityRegistry.registerModEntity(EntityIdentityDisk.class, "IdentityDisk", 5001, this, 40, 3, true);
            RenderingRegistry.registerEntityRenderingHandler(EntityIdentityDisk.class, new RenderSnowball(identityDisk));
        	keyHandler = new TajiKeyHandler(bindings);
        	KeyBindingRegistry.registerKeyBinding(keyHandler);
        }
        @EventHandler
        public void postInit(FMLPostInitializationEvent event) {
                // Stub Method
        }
}

 

Any ideas? Am I doing something wrong?

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So do I have the NBT data in the right place now?

package taji34.troncraft;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;

import cpw.mods.fml.client.registry.KeyBindingRegistry.KeyHandler;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.client.settings.KeyBinding;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTBase;
import net.minecraft.nbt.NBTTagByte;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagString;
import net.minecraft.network.packet.Packet250CustomPayload;
import net.minecraft.world.World;
public class Baton extends Item {
public Baton(int par1) {
	super(par1);
	setMaxStackSize(1);
	setCreativeTab(CreativeTabs.tabMisc);
	setUnlocalizedName("Baton");
}
    @Override
    @SideOnly(Side.CLIENT)
    public void registerIcons(IconRegister iconRegister) {
        this.itemIcon = iconRegister.registerIcon("Troncraft:Baton");
    }
public static KeyBinding mode = new KeyBinding("Baton Staff Mode", 36);   
public void keyboardEvent(KeyBinding keybinding)
    {
		if(keybinding == mode)
		{	

		}
    }
    
    public ItemStack onItemRightClick(ItemStack par1ItemStack, World par2World, EntityPlayer par3EntityPlayer)
    {
    	NBTTagCompound tag = par1ItemStack.getTagCompound();
    	if (tag == null) {
    		tag = new NBTTagCompound();
    		par1ItemStack.setTagCompound(tag);
    	}
    	if (tag.getName().equals("tag")) {
    		tag.setName("Test1");
    	}
    	System.out.println(tag.getName());
    	return par1ItemStack;
    }
    
}

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to send a packet check the wiki for packet handling

 

to send lines of code... i HIGHLY doubt you want to do that. so since you're asking the question im assuming the knowledge for this is WAY out of your reach and even if you knew how to do it you probably never want to do this as theres is SURELY another way

how to debug 101:http://www.minecraftforge.net/wiki/Debug_101

-hydroflame, author of the forge revolution-

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to send a packet check the wiki for packet handling

 

to send lines of code... i HIGHLY doubt you want to do that. so since you're asking the question im assuming the knowledge for this is WAY out of your reach and even if you knew how to do it you probably never want to do this as theres is SURELY another way

 

I'm new to coding, so that was the first thing I thought of. I'm trying to change the name of a tag in an itemstack, but I can't seem to think of a way to tell the server to do that.

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[shadow=red,left][shadow=red,left]to send a packet check the wiki for packet handling[/shadow][/shadow]

I meant what to send in the packet, I understand I need to send a packet to the server. I guess i'll just have to put a bit more thought into it.

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Never let the client tell the server what to do. Only tell the server what the use has done, then let the server decide what to do with that.

Example:

Don't send a packet to change NBT, but send a packet to tell the server that a key was pressed.

 

Then the server decides if the player was allowed to press the key, if he is holding the right item, etc. etc. (validation is all, Clients always lie to you, never trust them!).

After that it changes the NBT (or does whatever).

 

I highly suggest my tutorial as a followup to the Packet Handling tutorial on the wiki: www.minecraftforge.net/wiki/Advanced_Packet_Handling

 

Thank You! I was just about to post because I couldn't figure out how to send a packet from a keypress, but what you suggested makes more sense!

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Okay, so I have hit a snag. My key binding is registered in the game options, but when I press it, it does nothing. I currently have it print "Hi" to the console for troubleshooting purposes, but it is not working. Here is my code:

 

Troncraft.java:

package taji34.troncraft;
import net.minecraft.block.Block;
import net.minecraft.client.renderer.entity.RenderSnowball;
import net.minecraft.client.renderer.entity.RenderManager;
import net.minecraft.client.settings.KeyBinding;
import net.minecraft.entity.projectile.EntitySnowball;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.src.ModLoader;
import cpw.mods.fml.client.registry.KeyBindingRegistry;
import cpw.mods.fml.client.registry.KeyBindingRegistry.KeyHandler;
import cpw.mods.fml.client.registry.RenderingRegistry;
import cpw.mods.fml.common.Mod;
import cpw.mods.fml.common.Mod.EventHandler;
import cpw.mods.fml.common.Mod.Init;
import cpw.mods.fml.common.Mod.Instance;
import cpw.mods.fml.common.Mod.PostInit;
import cpw.mods.fml.common.Mod.PreInit;
import cpw.mods.fml.common.SidedProxy;
import cpw.mods.fml.common.event.FMLInitializationEvent;
import cpw.mods.fml.common.event.FMLPostInitializationEvent;
import cpw.mods.fml.common.event.FMLPreInitializationEvent;
import cpw.mods.fml.common.network.NetworkMod;
import cpw.mods.fml.common.registry.EntityRegistry;
import cpw.mods.fml.common.registry.GameRegistry;
import cpw.mods.fml.common.registry.LanguageRegistry;
@Mod(modid="Troncraft", name="Troncraft", version="0.0.1")
@NetworkMod(clientSideRequired=true, serverSideRequired=false, channels={"Baton"}, packetHandler = TajiPacketHandler.class)
public class Troncraft {
        // The instance of your mod that Forge uses.
        @Instance("Troncraft")
        public static Troncraft instance;
        public final static Item identityDisk = new IdentityDisk(5001);
        int diskItemID = identityDisk.itemID;
    	private final static Item baton = new Baton(5002);
    	int batonItemID = baton.itemID;
    	KeyBinding[] bindings = { Baton.mode };
    	TajiKeyHandler keyHandler;
        // Says where the client and server 'proxy' code is loaded.
        @SidedProxy(clientSide="taji34.troncraft.client.ClientProxy", serverSide="taji34.troncraft.CommonProxy")
        public static CommonProxy proxy;
        @EventHandler
        public void preInit(FMLPreInitializationEvent event) {
                // Stub Method
        }
        @EventHandler
        public void load(FMLInitializationEvent event) {
            LanguageRegistry.addName(identityDisk, "Identity Disk");
            LanguageRegistry.addName(baton, "Baton");
            EntityRegistry.registerModEntity(EntityIdentityDisk.class, "IdentityDisk", 5001, this, 40, 3, true);
            RenderingRegistry.registerEntityRenderingHandler(EntityIdentityDisk.class, new RenderSnowball(identityDisk));
        	keyHandler = new TajiKeyHandler(bindings);
        	KeyBindingRegistry.registerKeyBinding(keyHandler);
        }
        @EventHandler
        public void postInit(FMLPostInitializationEvent event) {
                // Stub Method
        }
}

 

Baton.java:

package taji34.troncraft;
import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;

import cpw.mods.fml.client.registry.KeyBindingRegistry.KeyHandler;
import cpw.mods.fml.common.network.PacketDispatcher;
import cpw.mods.fml.relauncher.Side;
import cpw.mods.fml.relauncher.SideOnly;
import net.minecraft.client.entity.EntityClientPlayerMP;
import net.minecraft.client.renderer.texture.IconRegister;
import net.minecraft.client.settings.KeyBinding;
import net.minecraft.creativetab.CreativeTabs;
import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.nbt.NBTBase;
import net.minecraft.nbt.NBTTagByte;
import net.minecraft.nbt.NBTTagCompound;
import net.minecraft.nbt.NBTTagString;
import net.minecraft.network.packet.Packet250CustomPayload;
import net.minecraft.world.World;
public class Baton extends Item {
public Baton(int par1) {
	super(par1);
	setMaxStackSize(1);
	setCreativeTab(CreativeTabs.tabMisc);
	setUnlocalizedName("Baton");
}
    @Override
    @SideOnly(Side.CLIENT)
    public void registerIcons(IconRegister iconRegister) {
        this.itemIcon = iconRegister.registerIcon("Troncraft:Baton");
    }
public static KeyBinding mode = new KeyBinding("Baton Staff Mode", 36);   
public void keyboardEvent(KeyBinding keybinding)
    {
		if(keybinding == mode)
		{	
			System.out.println("Hi");
			//PacketDispatcher.sendPacketToServer(new BatonModePacket("Hello World!").makePacket());
		}
    }
    
    public ItemStack onItemRightClick(ItemStack par1ItemStack, World par2World, EntityPlayer par3EntityPlayer)
    {
    	NBTTagCompound tag = par1ItemStack.getTagCompound();
    	if (tag == null) {
    		tag = new NBTTagCompound();
    		par1ItemStack.setTagCompound(tag);
    	}
    	if (tag.getName().equals("tag")) {
    		tag.setName("Test1");
    	}
    	System.out.println(tag.getName());
    	return par1ItemStack;
    }
    
}

 

TajiKeyHandler.java:

package taji34.troncraft;

import java.util.EnumSet;

import net.minecraft.client.settings.KeyBinding;
import cpw.mods.fml.client.registry.KeyBindingRegistry.KeyHandler;
import cpw.mods.fml.common.TickType;

public class TajiKeyHandler extends KeyHandler {

public TajiKeyHandler(KeyBinding[] keyBindings, boolean[] isRepeat) {
	super(keyBindings, isRepeat);
}
public TajiKeyHandler(KeyBinding[] keyBindings) {
	super(keyBindings);
}
@Override
public String getLabel() {
	return "Taji's Keys";
}

@Override
public void keyDown(EnumSet<TickType> types, KeyBinding kb,
		boolean tickEnd, boolean isRepeat) {
	// TODO Auto-generated method stub

}

@Override
public void keyUp(EnumSet<TickType> types, KeyBinding kb, boolean tickEnd) {
	// TODO Auto-generated method stub

}

@Override
public EnumSet<TickType> ticks() {
	// TODO Auto-generated method stub
	return null;
}
}

 

I've tried to follow stuff on how to make a keybinding, but none of the stuff I found was very detailed, so I think I might have missed something.

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Well, your key handler contains nothing but empty methods, how is it supposed to do something? :P

You probably forgot to call Baton#keyboardEvent from the KeyHandler.

 

I though it might be the empty methods, but nothing I found really specified what to put in those methods farther than "Put what you want it to do when a button is pressed here" which didn't really help me.

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welll ... what do you want to happen when a button is pressed ... print penis on the console ?

System.out.println("penis");

 

open a gui ?

player.openGui(args);

 

send a packet to the server ?

 

MyMod.sendPacektForKeyPress(args);

 

etc

how to debug 101:http://www.minecraftforge.net/wiki/Debug_101

-hydroflame, author of the forge revolution-

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welll ... what do you want to happen when a button is pressed ... print penis on the console ?

System.out.println("penis");

 

open a gui ?

player.openGui(args);

 

send a packet to the server ?

 

MyMod.sendPacektForKeyPress(args);

 

etc

 

Okay, but how does it know what to do for different key presses? Do I specify that myself?

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Okay, so apparently I don't have it all figured out. Cause it still isn't working :/ Here are the changes to my code I've made:

In TajiKeyHandler.java:

	@Override
public void keyDown(EnumSet<TickType> types, KeyBinding kb,
		boolean tickEnd, boolean isRepeat) {
	if(kb == Baton.mode)
	{	
		System.out.println("Hi");
		//PacketDispatcher.sendPacketToServer(new BatonModePacket("Hello World!").makePacket());
	}

}

@Override
public void keyUp(EnumSet<TickType> types, KeyBinding kb, boolean tickEnd) {
	if(kb == Baton.mode)
	{	
		System.out.println("Hi");
		//PacketDispatcher.sendPacketToServer(new BatonModePacket("Hello World!").makePacket());
	}

}

@Override
public EnumSet<TickType> ticks() {
	// TODO Auto-generated method stub
	return null;
}
}

I think I must be doing something wrong still here, do I need to put something in ENumSet<TickType> ticks()?

 

In Baton.java:

public static KeyBinding mode = new KeyBinding("Baton Staff Mode", 36);  

This is the only thing concerning key binding in this class now.

 

My main method hasn't changed but I'll post it anyway:

Troncraft.java:

package taji34.troncraft;
import net.minecraft.block.Block;
import net.minecraft.client.renderer.entity.RenderSnowball;
import net.minecraft.client.renderer.entity.RenderManager;
import net.minecraft.client.settings.KeyBinding;
import net.minecraft.entity.projectile.EntitySnowball;
import net.minecraft.item.Item;
import net.minecraft.item.ItemStack;
import net.minecraft.src.ModLoader;
import cpw.mods.fml.client.registry.KeyBindingRegistry;
import cpw.mods.fml.client.registry.KeyBindingRegistry.KeyHandler;
import cpw.mods.fml.client.registry.RenderingRegistry;
import cpw.mods.fml.common.Mod;
import cpw.mods.fml.common.Mod.EventHandler;
import cpw.mods.fml.common.Mod.Init;
import cpw.mods.fml.common.Mod.Instance;
import cpw.mods.fml.common.Mod.PostInit;
import cpw.mods.fml.common.Mod.PreInit;
import cpw.mods.fml.common.SidedProxy;
import cpw.mods.fml.common.event.FMLInitializationEvent;
import cpw.mods.fml.common.event.FMLPostInitializationEvent;
import cpw.mods.fml.common.event.FMLPreInitializationEvent;
import cpw.mods.fml.common.network.NetworkMod;
import cpw.mods.fml.common.registry.EntityRegistry;
import cpw.mods.fml.common.registry.GameRegistry;
import cpw.mods.fml.common.registry.LanguageRegistry;
@Mod(modid="Troncraft", name="Troncraft", version="0.0.1")
@NetworkMod(clientSideRequired=true, serverSideRequired=false, channels={"Baton"}, packetHandler = TajiPacketHandler.class)
public class Troncraft {
        // The instance of your mod that Forge uses.
        @Instance("Troncraft")
        public static Troncraft instance;
        public final static Item identityDisk = new IdentityDisk(5001);
        int diskItemID = identityDisk.itemID;
    	private final static Item baton = new Baton(5002);
    	int batonItemID = baton.itemID;
    	KeyBinding[] bindings = { Baton.mode };
    	TajiKeyHandler keyHandler;
        // Says where the client and server 'proxy' code is loaded.
        @SidedProxy(clientSide="taji34.troncraft.client.ClientProxy", serverSide="taji34.troncraft.CommonProxy")
        public static CommonProxy proxy;
        @EventHandler
        public void preInit(FMLPreInitializationEvent event) {
                // Stub Method
        }
        @EventHandler
        public void load(FMLInitializationEvent event) {
            LanguageRegistry.addName(identityDisk, "Identity Disk");
            LanguageRegistry.addName(baton, "Baton");
            EntityRegistry.registerModEntity(EntityIdentityDisk.class, "IdentityDisk", 5001, this, 40, 3, true);
            RenderingRegistry.registerEntityRenderingHandler(EntityIdentityDisk.class, new RenderSnowball(identityDisk));
        	keyHandler = new TajiKeyHandler(bindings);
        	KeyBindingRegistry.registerKeyBinding(keyHandler);
        }
        @EventHandler
        public void postInit(FMLPostInitializationEvent event) {
                // Stub Method
        }
}

Maybe I'm missing something here? I don't think so, because the key binding shows up in game, but since I'm new to this I'm not going to assume anything.

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well for 1, dont put the same thing in both keyDown and keyUp because itll happen twice (unless that what you want)

 

and 2

 

try this

@Override
public void keyDown(EnumSet<TickType> types, KeyBinding kb,
		boolean tickEnd, boolean isRepeat) {
                System.out.println("i happened");
	if(kb == Baton.mode)
	{	
		System.out.println("Hi");
		//PacketDispatcher.sendPacketToServer(new BatonModePacket("Hello World!").makePacket());
	}

}

 

if "i happened" prints, you have pressed the correct key and registered the keyhandler correctly,

if "hi" doesnt print then kb != Baton.mode

how to debug 101:http://www.minecraftforge.net/wiki/Debug_101

-hydroflame, author of the forge revolution-

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well for 1, dont put the same thing in both keyDown and keyUp because itll happen twice (unless that what you want)

 

and 2

 

try this

@Override
public void keyDown(EnumSet<TickType> types, KeyBinding kb,
		boolean tickEnd, boolean isRepeat) {
                System.out.println("i happened");
	if(kb == Baton.mode)
	{	
		System.out.println("Hi");
		//PacketDispatcher.sendPacketToServer(new BatonModePacket("Hello World!").makePacket());
	}

}

 

if "i happened" prints, you have pressed the correct key and registered the keyhandler correctly,

if "hi" doesnt print then kb != Baton.mode

I seem to be forgetting my troubleshooting basics! I did what you said, and nothing prints at all when I press J (the key I bound). So something must be going wrong elsewhere right?

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yes, now you know either that your key binder isnt registered correctly OR you're not pressing the right key

 

I fixed it! I shifted somethings around, and I found something on the wiki that helped. Hopefully it'll send the packet correctly now!

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Okay, so the keypress is working now, but the packet isn't. Here's my packet handler:

 

TajiPacketHandler.java:

package taji34.troncraft;

import java.util.logging.Logger;

import taji34.troncraft.TajiPacket.ProtocolException;

import com.google.common.io.ByteArrayDataInput;
import com.google.common.io.ByteStreams;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.entity.player.EntityPlayerMP;
import net.minecraft.network.INetworkManager;
import net.minecraft.network.packet.Packet250CustomPayload;
import cpw.mods.fml.common.network.IPacketHandler;
import cpw.mods.fml.common.network.Player;
import cpw.mods.fml.relauncher.Side;

public class TajiPacketHandler implements IPacketHandler {

    @Override
    public void onPacketData(INetworkManager manager, Packet250CustomPayload packet, Player player) {
            try {
                    EntityPlayer entityPlayer = (EntityPlayer)player;
                    ByteArrayDataInput in = ByteStreams.newDataInput(packet.data);
                    int packetId = in.readUnsignedByte(); // Assuming your packetId is between 0 (inclusive) and 256 (exclusive). If you need more you need to change this
                    TajiPacket demoPacket = TajiPacket.constructPacket(packetId);
                    demoPacket.read(in);
                    demoPacket.execute(entityPlayer, entityPlayer.worldObj.isRemote ? Side.CLIENT : Side.SERVER);
            } catch (ProtocolException e) {
                    if (player instanceof EntityPlayerMP) {
                            ((EntityPlayerMP) player).playerNetServerHandler.kickPlayerFromServer("Protocol Exception!");
                            Logger.getLogger("DemoMod").warning("Player " + ((EntityPlayer)player).username + " caused a Protocol Exception!");
                    }
            } catch (ReflectiveOperationException e) {
                    throw new RuntimeException("Unexpected Reflection exception during Packet construction!", e);
            }
    }
}

 

BatonModePacket.java:

package taji34.troncraft;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.item.ItemStack;

import com.google.common.io.ByteArrayDataInput;
import com.google.common.io.ByteArrayDataOutput;

import cpw.mods.fml.relauncher.Side;

public class BatonModePacket extends TajiPacket {

    private String text;
   
    public BatonModePacket(String text) {
            this.text = text;
    }

    public BatonModePacket() { } // Be sure to always have the default constructor in your class, or the reflection code will fail!

    @Override
protected void write(ByteArrayDataOutput out) {
            out.writeUTF(text);
    }

    @Override
    protected void read(ByteArrayDataInput in) throws ProtocolException {
            text = in.readUTF();
    }

    @Override
    protected void execute(EntityPlayer player, Side side) throws ProtocolException {
         //   if (side.isClient()) {
         //           player.addChatMessage(text);
          //  } else {
           //         throw new ProtocolException("Cannot send this packet to the server!");
          //  }
    	ItemStack itemstack = player.getHeldItem();
           if (side.isClient()) {
                   player.addChatMessage(itemstack.getDisplayName() + text);
           } else {
           //        throw new ProtocolException("Cannot send this packet to the server!");
        	   System.out.println(itemstack.getDisplayName() + text);
           }
    }
}

 

I'm sending the packet using the following line of code:

PacketDispatcher.sendPacketToServer(new BatonModePacket("Hello World!").makePacket());

 

Do I have something wrong somewhere?

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debug 101, are you RECEIVING the packet server side ?

question 2, is your packet handler even registered properly? (println inside the constructor if you need )

 

how to debug 101:http://www.minecraftforge.net/wiki/Debug_101

-hydroflame, author of the forge revolution-

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debug 101, are you RECEIVING the packet server side ?

question 2, is your packet handler even registered properly? (println inside the constructor if you need )

 

Would something print to the console if the packet was received server side? I put some println in both the constructor for BatonModePacket, and the makePacket() method that is inherited and called, and both ran and printed what I told them to the console. Debugging is obviously not my forte...

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