进入游戏主场景，游戏需要临时暂停、重新选关、重新玩等等，所以玩家点击暂停按钮，弹出一个选择悬浮层，这一节我们来实现；

效果如下：

点击右上角游戏暂停；

返回回到开始界面；

代码下载：http://www.kuaipan.cn/file/id_25348935635744972.htm?source=1

首先创建一个PauseLayer.ccbx,设计如下图，包括一个精灵和三个按钮，一个返回按钮、重新开始按钮、选关按钮；

给每一个MenuItem安排点击事件，指定target,图片资源；

打开MainLayer.ccbx,添加暂停按钮；

打开MainLayer.js,首先给暂停按钮事件；

MainLayer.prototype.onPauseClicked = function () {   //点击暂停游戏     this.pausedLayer = cc.BuilderReader.loadAsNodeFrom("", "PauseLayer", this);     this.pausedLayer.setPosition(cc.p(0, 0));     this.pausedLayer.setZOrder(200);     this.rootNode.addChild(this.pausedLayer);     this.paused = true;     cc.AudioEngine.getInstance().stopMusic();     cc.Director.getInstance().pause(); }

然后给返回和重新开始安排点击事件；

MainLayer.prototype.onRenewClicked = function () {  //返回到开始界面     cc.Director.getInstance().resume();     cc.log("onRenewClicked");     cc.BuilderReader.runScene("", "StartLayer"); }  MainLayer.prototype.onReplayClicked = function () {  //新游戏     cc.Director.getInstance().resume();     cc.log("onReplayClicked");     cc.BuilderReader.runScene("", "MainLayer"); }

MainLayer,js全部代码；

// // CleanerScoreScene class //  var MainLayer = function () {     cc.log("MainLayer")     this.scoreLabel = this.scoreLabel || {};     this.monster = this.monster || {};     this.score = 123; };  MainLayer.prototype.onDidLoadFromCCB = function () {     if (sys.platform == 'browser') {         this.onEnter();     }     else {         this.rootNode.onEnter = function () {             this.controller.onEnter();         };     }      this.rootNode.schedule(function (dt) {         this.controller.onUpdate(dt);     });      this.rootNode.onExit = function () {         this.controller.onExit();     };      this.rootNode.onTouchesBegan = function (touches, event) {         this.controller.onTouchesBegan(touches, event);         return true;     };      this.rootNode.onTouchesMoved = function (touches, event) {         this.controller.onTouchesMoved(touches, event);         return true;     };     this.rootNode.onTouchesEnded = function (touches, event) {         this.controller.onTouchesEnded(touches, event);         return true;     };     this.rootNode.setTouchEnabled(true); };  MainLayer.prototype.onEnter = function () {     var flowerParticle = cc.ParticleSystem.create("Resources/particles/flower.plist");     flowerParticle.setAnchorPoint(cc.p(0.5, 0.5));     flowerParticle.setPosition(cc.p(60, 160));     flowerParticle.setPositionType(1);     this.monster.addChild(flowerParticle);      cc.AudioEngine.getInstance().playMusic("Resources/sounds/bg_music.mp3", true); }  MainLayer.prototype.monsterMove = function (x, y) {     this.monster.stopAllActions();     cc.AnimationCache.getInstance().addAnimations("Resources/snow_frame.plist");//添加帧动画文件     var action0 = cc.Sequence.create(cc.MoveTo.create(5, cc.p(x, y)));  //向前移动     var actionFrame = cc.Animate.create(cc.AnimationCache.getInstance().getAnimation("monster"));   //获取帧动画     var action1 = cc.Repeat.create(actionFrame, 90000);     var action2 = cc.Spawn.create(action0, action1); //同步动画     this.monster.runAction(action2); }  MainLayer.prototype.createParticle = function (name, x, y) {     var particle = cc.ParticleSystem.create("Resources/particles/" + name + ".plist");     particle.setAnchorPoint(cc.p(0.5, 0.5));     particle.setPosition(cc.p(x, y));     particle.setPositionType(1);     particle.setDuration(3);     this.rootNode.addChild(particle); }   MainLayer.prototype.onUpdate = function (dt) {     this.score += dt;     this.scoreLabel.setString(Math.floor(this.score)); }  MainLayer.prototype.onExitClicked = function () {     cc.log("onExitClicked"); }   MainLayer.prototype.onExit = function () {     cc.log("onExit"); }  MainLayer.prototype.onRenewClicked = function () {  //返回到开始界面     cc.Director.getInstance().resume();     cc.log("onRenewClicked");     cc.BuilderReader.runScene("", "StartLayer"); }  MainLayer.prototype.onReplayClicked = function () {  //新游戏     cc.Director.getInstance().resume();     cc.log("onReplayClicked");     cc.BuilderReader.runScene("", "MainLayer"); }  /*MainLayer.prototype.onReturnClicked = function () {  //返回游戏  cc.log("onReturnClicked");  if (this.paused) {  if (this.pausedLayer) {  this.pausedLayer.removeFromParent();  this.pausedLayer = null;  }  cc.Director.getInstance().resume();  this.paused = false;  }  }*/  MainLayer.prototype.onPauseClicked = function () {   //点击暂停游戏     this.pausedLayer = cc.BuilderReader.loadAsNodeFrom("", "PauseLayer", this);     this.pausedLayer.setPosition(cc.p(0, 0));     this.pausedLayer.setZOrder(200);     this.rootNode.addChild(this.pausedLayer);     this.paused = true;     cc.AudioEngine.getInstance().stopMusic();     cc.Director.getInstance().pause(); }  MainLayer.prototype.onTouchesBegan = function (touches, event) {     var loc = touches[0].getLocation(); }  MainLayer.prototype.onTouchesMoved = function (touches, event) {     cc.log("onTouchesMoved"); }  MainLayer.prototype.onTouchesEnded = function (touches, event) {     cc.log("onTouchesEnded");     var loc = touches[0].getLocation();     cc.AudioEngine.getInstance().playEffect("Resources/sounds/bomb.mp3", false);     this.monsterMove(loc.x, loc.y);     this.createParticle("around", loc.x, loc.y); }   

点击运行，效果图在最上面；

下一篇文章 我会介绍cocos2d-x  editor的选关界面    笔者（李元友）

资料来源：cocos2d-x  editor