gistfile1.java

package untitled.network;

import java.io.ByteArrayOutputStream;
import java.io.DataOutputStream;
import java.io.IOException;

import net.minecraft.entity.player.EntityPlayer;
import net.minecraft.network.INetworkManager;
import net.minecraft.network.packet.Packet250CustomPayload;
import net.minecraft.tileentity.TileEntity;
import untitled.ModInfo;
import untitled.tileentities.TileEntityPoster;

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

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

public class PacketHandler implements IPacketHandler{

	@Override
	public void onPacketData(INetworkManager manager, Packet250CustomPayload packet, Player player) {
		
		ByteArrayDataInput reader = ByteStreams.newDataInput(packet.data);
		
		byte packetId = reader.readByte();
		
		EntityPlayer entityPlayer = (EntityPlayer) player;
		
		switch(packetId){
			case 0:
				int x = reader.readInt();
				int y = reader.readInt();
				int z = reader.readInt();
				
				float r = reader.readFloat();
				float g = reader.readFloat();
				float b = reader.readFloat();
				
//				System.out.println("Packet Recieved");
				
				TileEntity tileEntity = entityPlayer.worldObj.getBlockTileEntity(x, y, z);
				if (tileEntity != null && tileEntity instanceof TileEntityPoster) {
					TileEntityPoster te = (TileEntityPoster) tileEntity;
					te.setRGB(r, g, b);
//					entityPlayer.worldObj.markBlockForRenderUpdate(x, y, z);
				}
		}
		
	}

	public static void sendPosterColor(TileEntityPoster te, float r, float g, float b) {
		ByteArrayOutputStream byteStream = new ByteArrayOutputStream();
		DataOutputStream dataStream = new DataOutputStream(byteStream);
		System.out.println("Sending Packet");
		try {
			dataStream.writeByte((byte) 0);
			dataStream.writeInt(te.xCoord);
			dataStream.writeInt(te.yCoord);
			dataStream.writeInt(te.zCoord);
			dataStream.writeFloat(r);
			dataStream.writeFloat(g);
			dataStream.writeFloat(b);
			
			PacketDispatcher.sendPacketToAllPlayers(PacketDispatcher.getPacket(ModInfo.Channel, byteStream.toByteArray()));
		} catch (IOException e) {
			System.err.append("Failed to send poster color packet");
		}
	}
	
}