小试rotation

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AS3.0 中指示 DisplayObject 实例距其原始方向的旋转程度，一般用rotation来做这样的旋转效果，下面是我小试一下rotation中的rotationY即以Y轴为中心旋转的实例：

//是否反转
var isDown:Boolean = false;
//一直旋转
addEventListener(Event.ENTER_FRAME,enterFrame);
//侦听鼠标移到金币上，停止金币的旋转
addEventListener(MouseEvent.MOUSE_OVER,mouseOverEvt);
//侦听鼠标移出金币，回复金币的旋转
addEventListener(MouseEvent.MOUSE_OUT,mouseOutEvt);
//侦听鼠标点击金币，使金币反向绕Y轴旋转
addEventListener(MouseEvent.MOUSE_DOWN,mouseDownEvt);

function enterFrame(event:Event):void
{
gold.gotoAndStop(1);

//gold为元件名
    if(isDown)
       gold.rotationY -= 10;
   else
       gold.rotationY += 10;
}
function mouseOverEvt(event:MouseEvent):void
{
gold.gotoAndStop(2);//描边金币效果
removeEventListener(Event.ENTER_FRAME,enterFrame);
gold.rotationY = 0;
}
function mouseOutEvt(event:MouseEvent):void
{
gold.gotoAndStop(1);
addEventListener(Event.ENTER_FRAME,enterFrame);
}
function mouseDownEvt(event:MouseEvent):void
{
isDown = !isDown;
}

简单粗略的写写尔耳，呵呵！