【Cocos2d-Js基础教学（3）各种基类的定义和使用】

/**
 * Created by yangshengjiepro on 15/5/5.
 */
var BaseLayer=cc.Layer.extend({
    _bgFrame:null,
    _oktouch:false,
    _showbg:false,
    _showbgAcion:false,
    ctor:function(){
        this._super();
        //渲染一个背景层，默认为黑色的半透明的
        if(this._showbg==true)
        {
            //背景
            var bgFrame = cc.LayerColor(cc.color(0,0,0,200));
            this.addChild(bgFrame,0);
            this._bgFrame=bgFrame;
            this.setAnchorPoint(cc.p(0.5,0.5));
            //设置当前层里面所有节点的描点也和该层相同
            this.ignoreAnchorPointForPosition(false);
            this.setContentSize(winSize);
            this.setPosition(cc.p(winSize.width/2,winSize.height/2));
        }
        //开启底层不可点击触摸（层以下的UI都不可被点击）
        if(this._oktouch==true)
        {
            //点击时间
            cc.eventManager.addListener({
                event: cc.EventListener.TOUCH_ONE_BY_ONE,
                swallowTouches: true,
                onTouchBegan: function(){

                    return true;
                }
            }, this);
        }
        //开启打开窗体是带的特效
        if(this._showbgAcion==true)
        {
            var obj=this;
            obj.setScale(0.8);
            if(obj!=null){
                var sl=cc.EaseIn.create(cc.ScaleTo.create(0.15,1.1),2);
                var sl2=cc.ScaleTo.create(0.15,1);
                var seq=cc.Sequence(sl,sl2);
                obj.runAction(seq);
            }
        }
    },

    setBgColor:function(color){
        this._bgFrame.setColor(color);
    },

    onEnter:function(){
        this._super();
    },
    onExit:function(){
        this._super();

    }
});

/**
 * Created by yangshengjiepro on 15/5/5.
 */
/**
 * 自定义输出日志
 */
var OPENLOGFLAG = true;

var Mlog = function () {
    this.flag = 0;
}

//正常输出
Mlog.c = function(){
    var bakLog = cc._cocosplayerLog || cc.log || log;
    if(OPENLOGFLAG==true)
    {
        bakLog.call(this,"Mlog:" + cc.formatStr.apply(cc, arguments));
    }
};
//错误输出
Mlog.e = function(){
    var bakLog = cc._cocosplayerLog || cc.log || log;
    if(OPENLOGFLAG==true)
    {
        bakLog.call(this, "Mlog_ERROR:" + cc.formatStr.apply(cc, arguments));
    }
};

/**
 * Created by yangshengjiepro on 15/4/20.
 */

var MainLayer = BaseLayer.extend({
    ctor:function(){
        this._oktouch=true;//开启可透点击
        this._showbg=true;//开启背景
        this._showbgAcion=false;//主界面不需要弹出效果
        this._super();
        var mainbg =cc.Sprite(res.MainBG);
        mainbg.attr({
            x:this.getContentSize().width/2,
            y:this.getContentSize().height/2,
            scale:1,
            ratation:0
        });
        mainbg.setAnchorPoint(cc.p(0.5,0.5));
        this.addChild(mainbg);

        Mlog.c(" this layer is " + "ok");
    }
});


var MainScene = cc.Scene.extend({
    onEnter:function(){
        this._super();
        var layer = new MainLayer();
        this.addChild(layer);
    }
});