Hi! Im trying to send information (Clicking a button to change the value of a integer in the tileEntity) from the GUI to the TileEntity. I know I have to do some packets, and there's where the problem is.

I have a IMessage and an IMessageHandler, but when I try pressing the button I get "A fatal error has occured, this connection is terminated".

 

Here's the code for the IMessage and the IMessageHandler.

public class PacketDrill implements IMessage{

private int x;
private int y;
private int z;
private int mode;

public PacketDrill(TileEntityDrillModifier te){
	x = te.xCoord;
	y = te.yCoord;
	z = te.zCoord;
	mode = te.getMode();
}

@Override
public void fromBytes(ByteBuf buf) {
	x = buf.readInt();
	y = buf.readInt();
	z = buf.readInt();
	mode = buf.readInt();
}

@Override
public void toBytes(ByteBuf buf) {
	buf.writeInt(x);
	buf.writeInt(y);
	buf.writeInt(z);		
	buf.writeInt(mode);
}

public static class Handler implements IMessageHandler<PacketDrill, IMessage>{

	@Override
	public IMessage onMessage(PacketDrill message, MessageContext ctx) {
		TileEntity tile = ctx.getServerHandler().playerEntity.worldObj.getTileEntity(message.x, message.y, message.z);
		if(tile instanceof TileEntityDrillModifier){
			TileEntityDrillModifier modifier =  (TileEntityDrillModifier)tile;
			modifier.setMode(message.mode);
			ctx.getServerHandler().playerEntity.worldObj.markBlockForUpdate(message.x, message.y, message.z);
		}
		return null;
	}
}
}

 

After that I register it in the preInit:

Miscellany.network.registerMessage(PacketDrill.Handler.class, PacketDrill.class, 0, Side.SERVER);

 

And finally here's the code of me using it in the GUI:

@Override
protected void actionPerformed(GuiButton button) {
	super.actionPerformed(button);
	switch(button.id){
	case 0:
		if(tile.getMode()==0){
			tile.setMode(1);
		}else{
			tile.setMode(0); 
		}
		Miscellany.network.sendToServer(new PacketDrill(this.tile));
	}
}

 

What am I doing wrong? First time trying to do packets in GUI so this may be a small error, thanks!

Yup, I did miss the default constructor, I must've deleted it when cleaning code Thank you!