Tween對ActionScript 3的幫助

我試圖讓我的代碼在我的頭像（你用手指移動的東西）移動時，因爲當你把手指放在它上面時，但是當你把它拿開回到頭像會立即傳送到我的手指，我希望他移動到它。請告訴我什麼，我做錯了什麼，我可以改進，使這項工作。（這是一類，這是爲什麼我使用公共）Tween對ActionScript 3的幫助

public var lastPosX:Number; public var lastPosY:Number; 

    public function onTouchBegin (e:TouchEvent):void { 
     var newPosX:Number = avatar.x; //the point of x your finger is 
     var newPosY:Number = avatar.y; //the point of y your finger is 
     //checks for first time putting finger down 
     if (isNaN(lastPosX)) { 
      avatar.x = e.stageX; 
      avatar.y = e.stageY; 
      //x and y values = to your finger 
     } 
     else { 
      var myTweenX:Tween = new Tween(avatar, "x", Strong.easeOut, lastPosX, newPosX, 5, true); 
      var myTweenY:Tween = new Tween(avatar, "y", Strong.easeOut, lastPosY, newPosY, 5, true); 
      //makes the avatar move to your finger when u lift your finger off and on 
     } 

    } 
    public function onTouchMove (e:TouchEvent):void { 
     avatar.x = e.stageX; 
     avatar.y = e.stageY; 
     //x and y values = to your finger 
    } 

    public function onTouchFinish (e:TouchEvent):void { 
     avatar.x = e.stageX; 
     avatar.y = e.stageY; 
     lastPosX = avatar.x; 
     lastPosY = avatar.y; 
     //x and y values = to your finger 
     //Defines x and y value of finger 

    }

來源

2014-03-13 EliteSkull