Flex移动

 

 今天开始看了《Foundation Ationsript 3.0 Animation》，对于E文巨烂的我，看的当然是中文版了。做了个简单的移动的例子。最后移动的位置还是有点偏差，改下数据类型可能会好一点.

移动类：

 package { import flash.display.Sprite; import flash.events.Event; import flash.events.MouseEvent; import flash.events.TimerEvent; import flash.utils.Timer; public class FirstAnimation extends Sprite { private var _sprite:Sprite; private var var_v:int=5; private var var_x:int=0; private var var_y:int=0 private var time:int=1; private var timer:Timer=null; public function FirstAnimation() { init(); } private function init():void{ _sprite=new Sprite(); addChild(_sprite); _sprite.graphics.beginFill(0xff0000); _sprite.graphics.drawCircle(20,20,40); _sprite.graphics.endFill(); _sprite.x=50; _sprite.y=50; //addEventListener(MouseEvent.CLICK,drag); } public function drag(event:MouseEvent):void{ if(timer!=null) timer.stop(); var_x=event.stageX-_sprite.x; var_y=event.stageY-_sprite.y; var length:int=Math.sqrt(var_x*var_x + var_y*var_y); time=length/var_v; timer=new Timer(100,time*2); timer.addEventListener(TimerEvent.TIMER,go); timer.start(); } private function go(event:Event):void{ _sprite.x+=var_x/(time*2); _sprite.y+=var_y/(time*2); } } } 

调用页面

<?xml version="1.0" encoding="utf-8"?> <mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" creationComplete="init()"> <mx:Script> <!--[CDATA[ import mx.core.UIComponent; public function init():void{ var run:Run=new Run(); var uic:UIComponent = new UIComponent(); var first:FirstAnimation=new FirstAnimation(); uic.addChild(first); addChild(uic); addEventListener(MouseEvent.CLICK,first.drag); } ]]--> </mx:Script> </mx:Application>