从零开始手写mmo游戏从框架到爆炸（十五）— 命令行客户端改造

 导航：从零开始手写mmo游戏从框架到爆炸（零）—— 导航-CSDN博客         

       到现在，我们切实需要一个客户端来完整的进行英雄选择，选择地图，打怪等等功能。所以我们需要把之前极为简陋的客户端改造一下。

首先再common模块中增加打印颜色的工具类：ConsoleColors

package com.loveprogrammer.utils;/**** @version 1.0.0* @description:* @author: eric* @date: 2024-02-18 09:41**/
public class ConsoleColors {// Resetpublic static final String RESET = "\033[0m";  // Text Reset// Regular Colorspublic static final String BLACK = "\033[0;30m";   // BLACKpublic static final String RED = "\033[0;31m";     // REDpublic static final String GREEN = "\033[0;32m";   // GREENpublic static final String YELLOW = "\033[0;33m";  // YELLOWpublic static final String BLUE = "\033[0;34m";    // BLUEpublic static final String PURPLE = "\033[0;35m";  // PURPLEpublic static final String CYAN = "\033[0;36m";    // CYANpublic static final String WHITE = "\033[0;37m";   // WHITE// Boldpublic static final String BLACK_BOLD = "\033[1;30m";  // BLACKpublic static final String RED_BOLD = "\033[1;31m";    // REDpublic static final String GREEN_BOLD = "\033[1;32m";  // GREENpublic static final String YELLOW_BOLD = "\033[1;33m"; // YELLOWpublic static final String BLUE_BOLD = "\033[1;34m";   // BLUEpublic static final String PURPLE_BOLD = "\033[1;35m"; // PURPLEpublic static final String CYAN_BOLD = "\033[1;36m";   // CYANpublic static final String WHITE_BOLD = "\033[1;37m";  // WHITE// Underlinepublic static final String BLACK_UNDERLINED = "\033[4;30m";  // BLACKpublic static final String RED_UNDERLINED = "\033[4;31m";    // REDpublic static final String GREEN_UNDERLINED = "\033[4;32m";  // GREENpublic static final String YELLOW_UNDERLINED = "\033[4;33m"; // YELLOWpublic static final String BLUE_UNDERLINED = "\033[4;34m";   // BLUEpublic static final String PURPLE_UNDERLINED = "\033[4;35m"; // PURPLEpublic static final String CYAN_UNDERLINED = "\033[4;36m";   // CYANpublic static final String WHITE_UNDERLINED = "\033[4;37m";  // WHITE// Backgroundpublic static final String BLACK_BACKGROUND = "\033[40m";  // BLACKpublic static final String RED_BACKGROUND = "\033[41m";    // REDpublic static final String GREEN_BACKGROUND = "\033[42m";  // GREENpublic static final String YELLOW_BACKGROUND = "\033[43m"; // YELLOWpublic static final String BLUE_BACKGROUND = "\033[44m";   // BLUEpublic static final String PURPLE_BACKGROUND = "\033[45m"; // PURPLEpublic static final String CYAN_BACKGROUND = "\033[46m";   // CYANpublic static final String WHITE_BACKGROUND = "\033[47m";  // WHITE// High Intensitypublic static final String BLACK_BRIGHT = "\033[0;90m";  // BLACKpublic static final String RED_BRIGHT = "\033[0;91m";    // REDpublic static final String GREEN_BRIGHT = "\033[0;92m";  // GREENpublic static final String YELLOW_BRIGHT = "\033[0;93m"; // YELLOWpublic static final String BLUE_BRIGHT = "\033[0;94m";   // BLUEpublic static final String PURPLE_BRIGHT = "\033[0;95m"; // PURPLEpublic static final String CYAN_BRIGHT = "\033[0;96m";   // CYANpublic static final String WHITE_BRIGHT = "\033[0;97m";  // WHITE// Bold High Intensitypublic static final String BLACK_BOLD_BRIGHT = "\033[1;90m"; // BLACKpublic static final String RED_BOLD_BRIGHT = "\033[1;91m";   // REDpublic static final String GREEN_BOLD_BRIGHT = "\033[1;92m"; // GREENpublic static final String YELLOW_BOLD_BRIGHT = "\033[1;93m";// YELLOWpublic static final String BLUE_BOLD_BRIGHT = "\033[1;94m";  // BLUEpublic static final String PURPLE_BOLD_BRIGHT = "\033[1;95m";// PURPLEpublic static final String CYAN_BOLD_BRIGHT = "\033[1;96m";  // CYANpublic static final String WHITE_BOLD_BRIGHT = "\033[1;97m"; // WHITE// High Intensity backgroundspublic static final String BLACK_BACKGROUND_BRIGHT = "\033[0;100m";// BLACKpublic static final String RED_BACKGROUND_BRIGHT = "\033[0;101m";// REDpublic static final String GREEN_BACKGROUND_BRIGHT = "\033[0;102m";// GREENpublic static final String YELLOW_BACKGROUND_BRIGHT = "\033[0;103m";// YELLOWpublic static final String BLUE_BACKGROUND_BRIGHT = "\033[0;104m";// BLUEpublic static final String PURPLE_BACKGROUND_BRIGHT = "\033[0;105m"; // PURPLEpublic static final String CYAN_BACKGROUND_BRIGHT = "\033[0;106m";  // CYANpublic static final String WHITE_BACKGROUND_BRIGHT = "\033[0;107m";   // WHITEpublic static void main(String[] args) {System.out.println(ConsoleColors.RED_BOLD_BRIGHT + "肩甲");System.out.println(ConsoleColors.RED_BOLD + "肩甲");}
}

        增加统一打印工具类：ConsolePrint

package com.loveprogrammer.console;import com.alibaba.fastjson2.util.DateUtils;import java.util.Date;/*** @version 1.0.0* @description: 输出类* @author: eric* @date: 2024-02-18 16:55**/
public class ConsolePrint {private static final String space = "\t\t\t\t\t\t\t\t";public static void publishMessage(String content,int position) {String format = DateUtils.format(new Date(),DateUtils.DateTimeFormatPattern.DATE_TIME_FORMAT_19_DASH.pattern);String threadName = Thread.currentThread().getName();if(position == 0) {System.out.print(content);}else if(position == 1) {System.out.println(content);}else {System.out.println(space + content);}}public static void publishMessage(String content) {System.out.println(content);}public static void publishMessagePrint(String content,String placeholder) {System.out.print(content + placeholder);}
}

         修改command模块的结构，把tag根据不同的topic拆分到不同的类中，方便维护。

     之前的客户端就是简单的nettyclient，但是现在客户端也要解析topic和tag，所以我们根据server来改造客户端。大致结构如下：

     客户端的监听类- NetworkClientListener

package com.loveprogrammer.network;import com.alibaba.fastjson2.JSON;
import com.google.common.util.concurrent.ThreadFactoryBuilder;
import com.loveprogrammer.command.anotation.TagListener;
import com.loveprogrammer.command.client.ClientMenuTag;
import com.loveprogrammer.command.client.ClientTopic;
import com.loveprogrammer.handler.HandlerFactory;
import com.loveprogrammer.listener.INetworkEventListener;
import com.loveprogrammer.pojo.StringMessage;
import io.netty.channel.ChannelHandlerContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;import java.lang.reflect.Method;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;public class NetworkClientListener implements INetworkEventListener {protected static final Logger logger = LoggerFactory.getLogger(NetworkClientListener.class);private NetworkClientListener(){}private static final NetworkClientListener instance = new NetworkClientListener();public static NetworkClientListener getInstance(){return instance;}private final ThreadPoolExecutor executor = new ThreadPoolExecutor(2,2,0L,TimeUnit.SECONDS,new LinkedBlockingQueue<>(1024),new ThreadFactoryBuilder().setNameFormat("worker-pool-%d").build(),new ThreadPoolExecutor.CallerRunsPolicy());/**** 同客户端转发* @param ctx* @param topic* @param tag* @param msg*/public void forward(ChannelHandlerContext ctx, int topic, int tag, String msg) {StringMessage data = new StringMessage();data.setTopicId(topic);data.setTagId(tag);data.setBody(msg);channelRead(ctx,data);}@Overridepublic void onConnected(ChannelHandlerContext ctx) {}@Overridepublic void onDisconnected(ChannelHandlerContext ctx) {}@Overridepublic void onExceptionCaught(ChannelHandlerContext ctx, Throwable throwable) {}@Overridepublic void channelRead(ChannelHandlerContext ctx, StringMessage msg) {int topicId = msg.getTopicId();int tagId = msg.getTagId();Object handler = HandlerFactory.handlerMap.get(topicId);if (handler == null) {logger.warn("未获取到指定的消息监听对象，topicId {}", topicId);return;}String bodyValue = msg.getBody();executor.execute(() -> {try {Class<?> handlerClass = handler.getClass();// 找到tag 遍历methodsMethod[] methods = handlerClass.getMethods();for (Method method : methods) {TagListener mqListener = method.getAnnotation(TagListener.class);if (tagId == mqListener.tag()) {Class<?> aClass = mqListener.messageClass();String name = aClass.getName();// 先处理基本类型if ("java.lang.String".equals(name)) {method.invoke(handler, ctx, bodyValue);} else if ("java.lang.Long".equals(name)) {Long object = Long.parseLong(bodyValue);method.invoke(handler, ctx, object);} else if ("java.lang.Integer".equals(name)) {Integer object = Integer.parseInt(bodyValue);method.invoke(handler, ctx, object);} else if ("java.lang.Short".equals(name)) {Short object = Short.parseShort(bodyValue);method.invoke(handler, ctx, object);} else if ("java.lang.Byte".equals(name)) {Byte object = Byte.parseByte(bodyValue);method.invoke(handler, ctx, object);} else if ("java.lang.Double".equals(name)) {Double object = Double.parseDouble(bodyValue);method.invoke(handler, ctx, object);} else if ("java.lang.Float".equals(name)) {Float object = Float.parseFloat(bodyValue);method.invoke(handler, ctx, object);}// 转对象类型else {Object object = JSON.parseObject(bodyValue, aClass);method.invoke(handler, ctx, object);}break;}}} catch (Exception e) {logger.error("发生异常", e);// 转发到首页forward(ctx, ClientTopic.TOPIC_MENU, ClientMenuTag.TAG_MENU_PORTAL, msg.getBody());}});}
}

        客户端菜单监听- MenuHandler

package com.loveprogrammer.handler.support;import com.loveprogrammer.command.IHandler;
import com.loveprogrammer.command.anotation.TagListener;
import com.loveprogrammer.command.anotation.TopicListener;
import com.loveprogrammer.command.client.ClientTopic;
import com.loveprogrammer.command.client.ClientMenuTag;
import com.loveprogrammer.console.ConsolePrint;
import com.loveprogrammer.network.NetworkClientListener;
import com.loveprogrammer.utils.ScannerInput;
import io.netty.channel.ChannelHandlerContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;/*** @ClassName MenuHandler* @Description TODO* @Author admin* @Date 2024/2/18 17:37* @Version 1.0*/
@TopicListener(topic = ClientTopic.TOPIC_MENU)
public class MenuHandler implements IHandler {public static final Logger log = LoggerFactory.getLogger(MenuHandler.class);@TagListener(tag = ClientMenuTag.TAG_MENU_PORTAL,messageClass = String.class)public void portalMenu(ChannelHandlerContext ctx, String msg){// 展示首页数据ConsolePrint.publishMessage("请选择您要进行的操作");ConsolePrint.publishMessage("【1.打怪】  【2.装备】  【3.战兽】");ConsolePrint.publishMessage("【4.冒险者工会】   【5.副本】  【6.工会】 ");ConsolePrint.publishMessage("【8.配置】  【9.退出】");ConsolePrint.publishMessage("请选择：");int choose = ScannerInput.inputInt(1, 9, 9);while (choose != 9) {switch (choose) {case 1:case 2:case 3:case 4:case 5:case 6:case 7:case 8:default:ConsolePrint.publishMessage("暂未开放，敬请期待", 1);break;}ConsolePrint.publishMessage("请选择您要进行的操作");ConsolePrint.publishMessage("【1.打怪】  【2.装备】  【3.战兽】");ConsolePrint.publishMessage("【4.冒险者工会】   【5.副本】  【6.工会】 ");ConsolePrint.publishMessage("【8.配置】  【9.退出】");ConsolePrint.publishMessage("请选择：");choose = ScannerInput.inputInt(1, 9, 9);}// 这里不退出，而是返回首页，做一个重定向NetworkClientListener.getInstance().forward(ctx,ClientTopic.TOPIC_MENU, ClientMenuTag.TAG_MENU_PORTAL,msg);}
}

        剩余的改动这里就不一一赘述了，大家可以根据代码来看下调整的地方。本章对结构调整的有点大，会单独新增一个tag方便大家对比。

 客户端运行后效果如下：

10:06:15.602 [nioEventLoopGroup-2-1] [INFO ] com.loveprogrammer.handler.HandlerFactory:32 --- 初始化消息监听器成功 com.loveprogrammer.handler.support.MenuHandler
请选择您要进行的操作
【1.打怪】  【2.装备】  【3.战兽】
【4.冒险者工会】   【5.副本】  【6.工会】 
【8.配置】  【9.退出】
请选择：
1
暂未开放，敬请期待
请选择您要进行的操作
【1.打怪】  【2.装备】  【3.战兽】
【4.冒险者工会】   【5.副本】  【6.工会】 
【8.配置】  【9.退出】
请选择：

全部源码详见：

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