Starling Forum

1. 

   rseemann
   

   Competent Bird
   Joined: Mar '12
   Posts: 38

   A simple question:

   If I setup an animation, say it moves an image from A to B whenever I click at it.

   Must I always instantiate a new tween inside the TouchEvent.TOUCH event handler?

   I tried adding animation and adding it (the Tween) to the Juggler into the event handler, but it seems it doesn't work that way. It works only if I instantiate a new tween into the handler.

   My fear is: what will it happen if I keep creating tween instances whenever I need to animate something? So I looked into the Tween code and apparently all its completed cleanup consist in dispatching a Remove From Juggler event, but as far as I understood that isn't a proper object cleanup.

   Ty for you help and sorry for my english =D

   Posted 1 year ago #
2. 

   Daniel
   

   Primary Feather
   Joined: Jan '10
   Posts: 2,461

   Currently, you have to create new tweens, correct. But I've already changed that on my local repository. After a few more tests, I'll check it in (within the next few days). You can update your code then.

   Posted 1 year ago #
3. 

   rseemann
   

   Competent Bird
   Joined: Mar '12
   Posts: 38

   Ty for your answer, Daniel, u're doing a great job with Starling.

   Posted 1 year ago #
4. 

   Daniel
   

   Primary Feather
   Joined: Jan '10
   Posts: 2,461

   Thanks, rseemann! =)

   I just pushed the change to the repository. The Tween class now has a "reset" method. Please try it out and tell me if that's what you were looking for! There's still a chance to change it.

   Posted 1 year ago #
5. 

   rseemann
   

   Competent Bird
   Joined: Mar '12
   Posts: 38

   Actually not quite. As far as I understood what you did, there is still the need to config the animation and add the tween ti the juggler again. I was thinking in a way i could do something like this:

    
   private var animation:Tween;
    
   //which would be called by the class constructor
   private function setupAnimation():void{
      animation = new Tween(this, 2);
      animation.animate("y", 200);
    
     Juggler.add(animation)
   }
    
   //which would be called repetedly
   private function startAnimation():void{
      animation.play();
   }

   What would you think?

   Posted 1 year ago #
6. 

   Daniel
   

   Primary Feather
   Joined: Jan '10
   Posts: 2,461

   Hm ... the problem is that the tween will be removed from the juggler when it's done; we can't get around that, it just has to be that way. But you could do it like this:

   private var animation:Tween;
    
   // which would be called by the class constructor
   private function setupAnimation():void
   {
      if (animation) animation.reset(this, 2);
      else           animation = new Tween(this, 2);
    
      animation.animate("y", 200);
      Juggler.add(animation);
   }
    
   // which would be called repetedly
   private function startAnimation():void
   {
      setupAnimation();
   }

   That shouldn't be (noticeably) slower than the other solution.

   Posted 1 year ago #
7. 

   rseemann
   

   Competent Bird
   Joined: Mar '12
   Posts: 38

   So you're saying that the continuous addition to the Juggler is not a problem? If that's ok, i guess we're good =D.

   Again, ty for your help. I'm writing a video player for starling, as soon as it is good enough i'll share with you guys.

   Posted 1 year ago #
8. 

   Daniel
   

   Primary Feather
   Joined: Jan '10
   Posts: 2,461

   No, that's not a problem! Adding to a juggler is no more than adding it to an vector. =)
   Cool! I'm looking forward to that -- good luck! =)

   Posted 1 year ago #
9. 

   Arthy
   

   Novice Bird
   Joined: Apr '12
   Posts: 5

   Is there no problem concerning GC as the tween never release the mTarget reference ?

   In other words, would it be relevant to add a dispose method to clean every references, and kill current tweens ?

   Posted 1 year ago #

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