LayaAir引擎与原生Flash的差异文档说明！

cuixueying

cuixueying

1、LayaAir与Flash的差异文档
a.int强转;
flash环境下：

       var a:int = int(1.5);

LayaAir环境下：

       var a:int = parseInt(1.5);

b.mask遮罩使用;
flash环境下：
1、静态遮罩

            var sp:Sprite=new Sprite();
            sp.graphics.beginFill(0xFFFF00);
            sp.graphics.drawRect(0,0,200,200);
            sp.graphics.endFill();
            addChild(sp);
            
            var mask:Sprite=new Sprite();
            mask.graphics.beginFill(0xFF0000);
            mask.graphics.drawCircle(0,0,50);
            mask.graphics.endFill();
            sp.mask=mask[/code]2、动态遮罩[code]            var sp:Sprite=new Sprite();
            sp.graphics.beginFill(0xFFFF00);
            sp.graphics.drawRect(0,0,200,200);
            sp.graphics.endFill();
            addChild(sp);
            
            var mask:Sprite=new Sprite();
            mask.graphics.beginFill(0xFF0000);
            mask.graphics.drawCircle(0,0,50);
            mask.graphics.endFill();
            sp.mask=mask;
            
            addEventListener(Event.ENTER_FRAME,function():void
            {
                mask.x++;
                mask.cacheAsBitmap=true;
                sp.cacheAsBitmap=true;
            });

LayaAir环境下：
1、静态遮罩

            Laya.init(600,400)
            var sp:Sprite=new Sprite();
            sp.graphics.drawRect(0,0,200,200,'#FFFF00');
            Laya.stage.addChild(sp);
            
            var mask:Sprite=new Sprite();
            mask.graphics.drawCircle(0,0,50,'#FF0000');
            sp.mask=mask;[/code]2、动态遮罩 [code]            Laya.init(600,400)
            var sp:Sprite=new Sprite();
            sp.graphics.drawRect(0,0,200,200,'#FFFF00');
            Laya.stage.addChild(sp);
            
            var mask:Sprite=new Sprite();
            mask.graphics.drawCircle(0,0,50,'#FF0000');
            sp.mask=mask;
            
            Laya.timer.frameLoop(1,this,function():void
            {
                mask.x++;
                sp.repaint();
            });[/code]小提示：
       LayaAir下，Mask是添加到了显示对象内部，也就是说，LayaAir 下的Mask坐标是相对于被遮罩
对象的，而并非舞台。

c.精灵自身画的graphics矢量图形注册事件点击区域差异;
flash环境下：[code]            var sprite:Sprite = new Sprite();
            sprite.graphics.beginFill(0xffcc00);
            sprite.graphics.drawRect(100,100,100,100);
            sprite.graphics.endFill();
            addChild(sprite);
            sprite.addEventListener(MouseEvent.CLICK,onClick);
            function onClick(evt:MouseEvent):void
            {
                trace("------aaa---------");
             }[/code]LayaAir环境下：[code]            var sprite:Sprite = new Sprite();
            //方法一------start
            sprite.graphics.drawRect(100,100,100,100,"#ff9900");
            var hitarea:HitArea = new HitArea();
            var graphics:Graphics = new Graphics();
            graphics.drawRect(100,100,100,100,"#ff9900");
            hitarea.hit = graphics;
            sprite.hitArea = hitarea;
            //方法一------end
            
            //方法二------start
            sprite.graphics.drawRect(0,0,100,100,"#ff9900");
            sprite.size(100,100);
            Laya.stage.addChild(sprite);
            sprite.on(Event.CLICK,this,onClick);
            function onClick(evt:Event):void
            {
                trace("-------click--------");
            }
            //方法二------end[/code]
d.事件对象派发;
flash环境下：
派发：[code]        dispatchEvent('custom');

监听:

         addEventListener('custom',onCustom)

LayaAir环境下：

var sprite:Sprite = new Sprite();

派发：

sprite.event('custom');

监听:

 sprite.on('custom',this,onCustom

ohkei

感谢汇总！继续加油！