十 手游开发神器 cocos2d-x editor 之触摸事件

这一节 我将实现让小怪物跟随我的触摸方向移动，同时触摸的地方产生一个四周发散的效果

效果如下：

代码下载：http://www.kuaipan.cn/file/id_25348935635744782.htm?source=1

打开MainLayer.js,把onDidLoadFromCCB函数修改如下，让触摸可用；

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); };

在文件底部加入 触摸开始，触摸移动，触摸结束函数；

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"); }

再创建小怪物的根据点(x,y)移动的函数；

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); }

触摸结束时，加入monsterMove函数，这时触摸一个点，小怪物会立刻移动到该位置；

MainLayer.prototype.onTouchesEnded = function (touches, event) {     cc.log("onTouchesEnded");     var loc = touches[0].getLocation();     this.monsterMove(loc.x, loc.y); }

按照之前博客教过的在particles目录下创建一个发散粒子，现在在触摸的地方加入发散效果，效果周期为3秒，3秒后消失；

再次打开MainLayer.js,加入创建粒子的函数

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); }

同时在触摸结束时加入粒子函数；

MainLayer.prototype.onTouchesEnded = function (touches, event) {     cc.log("onTouchesEnded");     var loc = touches[0].getLocation();     this.monsterMove(loc.x, loc.y);     this.createParticle("around", loc.x, loc.y); }

点击运行；一切OK；

下一篇文章 我会介绍cocos2d-x  editor的音乐和音效       笔者（李元友）

资料来源：cocos2d-x  editor