[]js继承模式

new function() {

    var className = 'BackGround';

    window[className] = (function() {

        Laya.class(Class, className, Laya.Sprite);



        function Class() {

            Class.super(this);



            // this定义..



            this.init();

        }

        Class.prototype.init = function() {

            console.log(this);

        };



        return Class;

    })();

}









var __extends = (this && this.__extends) || function(d, b) {

    for (var p in b) {

        (b.hasOwnProperty(p)) && (d[p] = b[p]);

    }

    function __() { this.constructor = d; }

    d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());

};



var BackGround = (function() {

    __extends(Class, Laya.Sprite);



    function Class() {

        Laya.Sprite.call(this);

        this.img = [];

        this.init();

    }

    Class.prototype.init = function() {

        Laya.stage.addChild(this);

        this.bg();

        Laya.timer.frameLoop(1, this, this.loop);

    };

    Class.prototype.bg = function() {

        for (var i = 0; i < 2; i++) {

            this.img[i] = new Laya.Image('background.png');

            this.addChild(this.img[i]);

        }

        this.img[0].y = 0;

        this.img[1].y = -852;

    }

    Class.prototype.loop = function() {

        for (var i = 0; i < this.img.length; i++) {

            this.img[i].y += 1;

            if (this.img[i].y >= 852) {

                this.img[i].y = -852;

            }

        }

    };

    return Class;

}());





new function() {

    var className = 'BackGround';

    window[className] = (function() {

        Laya.class(Class, className, Laya.Sprite);



        function Class() {

            Class.super(this);



            this.img = [];



            this.init();

        }

        Class.prototype.init = function() {

            Laya.stage.addChild(this);

            this.bg();

            Laya.timer.frameLoop(1, this, this.loop);

        };

        Class.prototype.bg = function() {

            for (var i = 0; i < 2; i++) {

                this.img[i] = new Laya.Image('background.png');

                this.addChild(this.img[i]);

            }

            this.img[0].y = 0;

            this.img[1].y = -852;

        }

        Class.prototype.loop = function() {

            for (var i = 0; i < this.img.length; i++) {

                this.img[i].y += 1;

                if (this.img[i].y >= 852) {

                    this.img[i].y = -852;

                }

            }

        };

        return Class;

    })();

}









Laya.init(400, 852, Laya.WebGL);





// new BackGround();

new BackGround();