Cocos2d-JS内置粒子系统

标签：c++   cocos2d-x   cocos2d-js   开发人员   游戏   

var MyActionLayer = cc.Layer.extend({
    flagTag: 0,                     	// 操作标志
    pLabel: null, 														①
    ctor: function (flagTag) {
     
        this._super();
        this.flagTag = flagTag;


        cc.log("MyActionLayer init flagTag " + this.flagTag);


        var size = cc.director.getWinSize();


        var backMenuItem = new cc.LabelBMFont("<Back", res.fnt_fnt);
        var backMenuItem = new cc.MenuItemLabel(backMenuItem, this.backMenu, this);
        backMenuItem.x = size.width - 100;
        backMenuItem.y = 100;


        var mn = cc.Menu.create(backMenuItem);
        mn.x = 0;
        mn.y = 0;
        mn.anchorX = 0.5;
        mn.anchorY = 0.5;
        this.addChild(mn);


        this.pLabel =  new cc.LabelBMFont("", res.fnt_fnt);
        this.pLabel.x = size.width /2;
        this.pLabel.y = size.height  - 50;
        this.addChild(this.pLabel, 3);


        return true;
    },
    backMenu: function (sender) {
        cc.director.popScene();
    },
    onEnterTransitionDidFinish: function () {
        cc.log("Tag = " + this.flagTag);
        var sprite = this.getChildByTag(SP_TAG);
        var size = cc.director.getWinSize();


       var system;
        switch (this.flagTag) {											②
            case ActionTypes.kExplosion:
                system = new cc.ParticleExplosion();
                this.pLabel.setString("Explosion");
                break;
            case ActionTypes.kFire:
                system = new cc.ParticleFire();
							system.texture = cc.textureCache.addImage(res.s_fire);				③
                this.pLabel.setString("Fire");
                break;
            case ActionTypes.kFireworks:
                system = new cc.ParticleFireworks();
                this.pLabel.setString("Fireworks");
                break;
            case ActionTypes.kFlower:
                system = new cc.ParticleFlower();
                this.pLabel.setString("Flower");
                break;
            case ActionTypes.kGalaxy:
                system = new cc.ParticleGalaxy();
                this.pLabel.setString("Galaxy");
                break;
            case ActionTypes.kMeteor:
                system = new cc.ParticleMeteor();
                this.pLabel.setString("Meteor");
                break;
            case ActionTypes.kRain:
                system = new cc.ParticleRain();
                this.pLabel.setString("Rain");
                break;
            case ActionTypes.kSmoke:
                system = new cc.ParticleSmoke();
                this.pLabel.setString("Smoke");
                break;
            case ActionTypes.kSnow:
                system = new cc.ParticleSnow();
                this.pLabel.setString("Snow");
                break;
            case ActionTypes.kSpiral:
                system = new cc.ParticleSpiral();
                this.pLabel.setString("Spiral");
                break;
            case ActionTypes.kSun:
                system = new cc.ParticleSun();
                this.pLabel.setString("Sun");
                break;													④
        }


        system.x = size.width /2;
        system.y = size.height /2;


        this.addChild(system);
    }
});


var MyActionScene = cc.Scene.extend({
    onEnter: function () {
        this._super();
    }
});

另外，如果在Web浏览器中运行还需要为粒子系统添加纹理，我们只在代码第③行添加了火粒子纹理，其它的粒子纹理添加类似。

《Cocos2d-x实战 JS卷》现已上线，各大商店均已开售：

京东：http://item.jd.com/11659698.html

Cocos2d-JS内置粒子系统

标签：c++   cocos2d-x   cocos2d-js   开发人员   游戏   

原文地址：http://blog.csdn.net/tonny_guan/article/details/44904387