main.js代码

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cc.game.onStart = function(){
    cc.view.adjustViewPort(true);
    cc.view.setDesignResolutionSize(1334,750,1);
    cc.view.resizeWithBrowserSize(true);
    LoaderScene.preload(gameResources, function () {
            var start = new Start();
            cc.director.runScene(start);
    }, this);
};
cc.game.run("gameCanvas");

window.addEventListener('resize',rotateHandler,false);
function rotateHandler(){
    if(!cc || !cc.director || !cc.director.getRunningScene) return;
    var currentScene = cc.director.getRunningScene();
    var resize = currentScene._resize;
    if(typeof resize === 'function'){
        var rate = 1,deg = 0,
            width = document.documentElement.clientWidth,
            height = document.documentElement.clientHeight,
            tempVal = 0;
        if(width<height){
            rate = width/height;
            tempVal = width;
            width = height;
            height = tempVal;
            deg = 90;
            pageIsturned = true;
        }else{
            pageIsturned = false;
        }
        resize.call(currentScene,deg,rate,{
            width:width,
            height:height
        });
    }
}

start.js代码

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var Start = window.Start = cc.Scene.extend({
        _screenLayer: null,
        _startLayer:null,
        _gameLayer:null,
        _isInit: false,
        ctor: function(){
            this._super();
        },
        onEnter: function(){
            this._isInit = true;

            //------------------TODO------------------//

            this._screenLayer = new cc.Layer();
            this.addChild(this._screenLayer);

            this._startLayer = new StartLayer();
            this._screenLayer.addChild(this._startLayer);

            //------------------TODO------------------//

            if(typeof rotateHandler === 'function') {
                rotateHandler();
            }
            this._super();
        },
        onExit: function(){
            // cc.spriteFrameCache.removeSpriteFramesFromFile(res.catIndex);
        },
        _resize: function(deg,rate,size){
            if(!this._isInit) return;
            this._screenLayer.rotation = deg;
            this._screenLayer.scale = rate;

            this._startLayer._resize(size);
        }
    });

    var StartLayer = cc.Layer.extend({
        _bg:null,
        _cat:null,
        _frameCount:0,
        _catIsMoving: false,
        ctor: function(){
            this._super();

            this._bg = new cc.Sprite(res.mainBg);
            this._bg.x = cc.winSize.width/2;
            this._bg.y = cc.winSize.height/2;
            this.addChild(this._bg);

            this.round1 = new cc.Sprite(res.round1);
            this.round1.x = cc.winSize.width/2;
            this.round1.y = cc.winSize.height/2;
            this.round1.scale = 0.3;
            this.addChild(this.round1);

            var r = new cc.rotateBy(0.6, 360).repeatForever();
            this.round1.runAction(r);

            this.round2 = new cc.Sprite(res.round2);
            this.round2.x = cc.winSize.width/2 - 100;
            this.round2.y = cc.winSize.width/2 - 100;
            this.addChild(this.round2);
        },
        _resize : function(size){
            var height = cc.winSize.height,
                width = cc.winSize.width;
            if(width/height>=size.width/size.height){
                width = height*size.width/size.height;
            }else{
                height = width*size.height/size.width;
            }

            this.round2.x = (size.width + width) / 2 + 10;
            this.round2.y = (size.height + height) / 2 + 10;
        }
    });