cn.academy.ability.teleport.data.ClientModifyMsg.java Source code

Introduction

Here is the source code for cn.academy.ability.teleport.data.ClientModifyMsg.java

Source

/**
 * Copyright (c) Lambda Innovation, 2013-2015
 * ??Lambda Innovation
 * http://www.lambdacraft.cn/
 *
 * AcademyCraft is open-source, and it is distributed under 
 * the terms of GNU General Public License. You can modify
 * and distribute freely as long as you follow the license.
 * AcademyCraft??GNU???
 * ????
 * http://www.gnu.org/licenses/gpl.html
 */
package cn.academy.ability.teleport.data;

import io.netty.buffer.ByteBuf;
import net.minecraft.entity.player.EntityPlayer;
import cn.academy.ability.teleport.data.LocationData.Location;
import cn.annoreg.core.RegistrationClass;
import cn.annoreg.mc.RegMessageHandler;
import cpw.mods.fml.common.network.simpleimpl.IMessage;
import cpw.mods.fml.common.network.simpleimpl.IMessageHandler;
import cpw.mods.fml.common.network.simpleimpl.MessageContext;

/**
 * Fired when client gui performs some action to modify the location data.
 * @author WeathFolD
 */
@RegistrationClass
public class ClientModifyMsg implements IMessage {

    int opcode;
    Object arg; //NULL if opcode==REMOVE

    //Opcodes
    public static final int ADD = 0, //arg: Location
            REMOVE = 1, //arg: int
            CLEAR = 2; //arg: none

    public ClientModifyMsg(int _opcode, Object _arg) {
        opcode = _opcode;
        arg = _arg;
    }

    public ClientModifyMsg() {
    }

    @Override
    public void fromBytes(ByteBuf buf) {
        opcode = buf.readByte();
        if (opcode == ADD) {
            arg = new Location(buf);
        } else if (opcode == REMOVE) {
            arg = (Integer) buf.readInt();
        }
    }

    @Override
    public void toBytes(ByteBuf buf) {
        buf.writeByte(opcode);
        if (opcode == ADD) {
            ((Location) arg).toBuf(buf);
        } else if (opcode == REMOVE) {
            buf.writeInt((Integer) arg);
        }
    }

    @RegMessageHandler(msg = ClientModifyMsg.class, side = RegMessageHandler.Side.SERVER)
    public static class Handler implements IMessageHandler<ClientModifyMsg, IMessage> {

        @Override
        public IMessage onMessage(ClientModifyMsg msg, MessageContext ctx) {
            EntityPlayer player = ctx.getServerHandler().playerEntity;
            LocationData data = LocationData.get(player);

            switch (msg.opcode) {
            case ADD:
                data.locationList.add((Location) msg.arg);
                break;
            case REMOVE:
                data.locationList.remove((int) ((Integer) msg.arg));
                break;
            case CLEAR:
                data.locationList.clear();
                break;
            }

            data.sync();
            return null;
        }

    }

}