Cocos2d-x《雷电大战》(6) 一q消灭一个侵略者

概述现在有子d了有敌机了 所以事情简单了,两者碰撞,都消失,真正做到一q消灭一个侵略者 先重看一下完整的场景 var HelloWorldScene = cc.Scene.extend({ onEnter:function () { this._super(); //两个背景层 var layer = new BGLayer(res.BACK4_2,res.BACK4_1

现在有子d了有敌机了 所以事情简单了,两者碰撞,都消失,真正做到一q消灭一个侵略者

先重看一下完整的场景

var HelloWorldScene = cc.Scene.extend({  onEnter:function () {    this._super();    //两个背景层    var layer = new BGLayer(res.BACK4_2,res.BACK4_1,-2);    this.addChild(layer,100)    var bg2= new  BGLayer(res.BACK3_1,res.BACK3_2,2);    this.addChild(bg2,200);    //敌人来了    var  enemyLayer=new Enemy();    this.addChild(enemyLayer,250);    //可以飞了    var airLayer=new Airplane();    this.addChild(airLayer,300);    airLayer.enemyLayer=enemyLayer;  }});

2更完整的airplane,其实与前面相比.只是多了一个update,用于碰撞检测

var Airplane = cc.Layer.extend({    ctor:function (){      var me=this;      me._super();      var size=cc.winSize;      me.air=new cc.Sprite(res.AIRPLAN);      me.air.setposition(size.wIDth/2,size.height/2);      me.addChild(me.air);      me.batchNode=new cc.SpriteBatchNode(res.BulLET1);      me.batchNode.retain();      me.bullteID=1;      me.bullteSpeed=500;      //有3种风格可以选择      me.bulletStyle=0; //添加子d风格,默认为0      var menu=new cc.Menu(new cc.MenuItemFont("子d风格",function(sender){        this.bulletStyle+=1;        if(this.bulletStyle>2){this.bulletStyle =0}      },me));      menu.setposition(size.wIDth - 100,15);      me.addChild(menu)      cc.eventManager.addListener(cc.EventListener.create({        event: cc.EventListener.touch_ONE_BY_ONE,swallowtouches: true,ontouchBegan: me.ontouchBegan.bind(me),ontouchmoved: me.ontouchmoved.bind(me),ontouchended: me.ontouchended.bind(me),}),me);      me.schedule(me.fire,0.5);      me.scheduleUpdate();      return true;    },update:function( dt){      this.enemyLayer.children.forEach(function(enemy){        this.children.forEach(function(bullet){          var enemy=this;          var eRect=enemy.getBounding@R_301_6951@();          var bRect=bullet.getBounding@R_301_6951@();          //本层中英雄没有tag,子d有          if(bullet.getTag()> 0 &&  cc.rectIntersectsRect(eRect,bRect)){            bullet.removeFromParent();            enemy.dropMe();          }        }.bind(enemy));      }.bind(this));    },onExit:function(){      me.batchNode.release();    },fire:function(dt){      var me=this;      var point=me.air.getposition();      var newbullet=function(px,py,dx){        var sp=new cc.Sprite(this.batchNode.getTexture());        sp.setposition(px,py);        var bID=this.bullteID++;        sp.setTag(bID);        this.addChild(sp,-1);        var flyLen= cc.winSize.height - py;        var duration = flyLen / this.bullteSpeed;        var k= (cc.winSize.height-py)*dx        var action=new cc.Sequence([          new cc.Moveto(duration,cc.p(px + k,cc.winSize.height )),new cc.CallFunc(function(bullet,ID){            this.removeChildByTag(ID);          },this,bID)        ]);        sp.runAction(action);          }.bind(me);      var px=point.x;      var py=point.y + me.air.getContentSize().height + 20;      switch(me.bulletStyle){        case 1:          newbullet(px-10,0);          newbullet(px+10,0);          break;        case 2:          newbullet(px-10,-0.2);          newbullet(px,0.2);        default:          newbullet(px,0);      }    },ontouchBegan:function(touch,e){      var me=this;      var size=me.air.getContentSize();      var rect = cc.rect(0,size.wIDth,size.height);      var point = me.air.convertToNodeSpace(touch.getLocation());      if(cc.rectContainsPoint(rect,point)){        me.started=true;        return true;      }      return false;    },ontouchmoved:function(touch,e){      var me=this;      var size=me.air.getContentSize();      var point = me.convertToNodeSpace(touch.getLocation());      if(!!me.started){        var x=point.x;        var y=point.y;        var between=function(v,max,min){          if(v<=min){return min;}          else if(v >= max){return max;}          else{return v;}        };        me.air.x=between(point.x,cc.winSize.wIDth - size.wIDth /2,size.wIDth / 2);        me.air.y=between(point.y,cc.winSize.height - size.height / 2,size.height / 2);      }    },ontouchended:function(t,e){      this.started=false;    }});

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