AS3简单遮罩效果

Posted by admin in ActionScript 2 & 3一 20th, 2010 | one response

下面的例子演示遮罩跟随鼠标移动。通过载入的图片指定遮罩，该遮罩跟着鼠标移动：

var loader:Loader = new Loader(   );
loader.load(new URLRequest("image.jpg"));
addChild(loader);
var maskSprite:Sprite = new Sprite(   );
maskSprite.graphics.lineStyle(   );
maskSprite.graphics.beginFill(0xFFFFFF);
maskSprite.graphics.drawCircle(0, 0, 50);
maskSprite.graphics.endFill(   );
loader.mask = maskSprite;
addChild(maskSprite);
maskSprite.startDrag(true);