PacketHandlerBase.java

package com.xcompwiz.lookingglass.network.packet;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import net.minecraft.entity.player.EntityPlayer;

import com.xcompwiz.lookingglass.network.LookingGlassPacketManager;

import cpw.mods.fml.common.network.internal.FMLProxyPacket;

/**
 * This class is the parent of the packet handling classes for our network communication. Mostly contains helper functions.
 */
public abstract class PacketHandlerBase {

	/**
	 * Called by our packet manager to process packet data
	 */
	public abstract void handle(ByteBuf data, EntityPlayer player);

	/**
	 * Used by the progeny of this class in order to produce and prepare the buffer for packet data. Includes writing the correct packet id for the packet.
	 */
	public static ByteBuf createDataBuffer(Class<? extends PacketHandlerBase> handlerclass) {
		ByteBuf data = Unpooled.buffer();
		data.writeByte(LookingGlassPacketManager.getId(handlerclass));
		return data;
	}

	/**
	 * Used by the progeny of this class in order to produce a packet object from the data buffer. Automatically uses our packet channel so that the manager on
	 * the other side will receive the packet.
	 */
	protected static FMLProxyPacket buildPacket(ByteBuf payload) {
		return new FMLProxyPacket(payload, LookingGlassPacketManager.CHANNEL);
	}
}