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Asked: 2026-05-11T02:19:17+00:00

I would like to do simple (looping) animation (moving, changing alpha etc) in Haxe

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I would like to do simple (looping) animation (moving, changing alpha etc) in Haxe (flash9). I don’t have anything that resembles frames in my library, just single frame assets.

Since I am a beginner. I am not necessarily looking for a sophisticated framework. I would be happy with something quick & dirty. Maybe ifs checking the frame (class variable) and linearly interpolating the values.

class MyClass extends Sprite {     static var frame:Int = 0;     static inline var framerate:Int = 25;      static function main() {         var app:MyClass = new MyClass();         flash.Lib.current.addChild(app);     }      private function new() {         super();          // init assets here          var myTimer:Timer = new Timer(1000/framerate);         myTimer.addEventListener(TimerEvent.TIMER, animate);         myTimer.start();     }      function animateForeground(event:TimerEvent) {         frame = (frame + 1) % 1000;          // set new values depending on frame     }  }

I know the basic idea of keyframe animation. What I am looking for is more about how to structure this part of the program.

Can you please give me some pointers on how should I proceed?

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1 Answer

  1. If you want to do animations I would very much recommend using a tweening library, although I understand that you might want to learn the basics before ‘cheating’ past them.

    I would recommend hooking up your animations to the ENTER_FRAME event instead of a timer running at the same speed as your framerate. There’s really no need to decouple these two, since the timer isn’t any more reliable than the ENTER_FRAME event, and there’s no need in moving stuff around if it can’t be seen anyway.

    Also, I don’t think you should focus that much on ‘keyframe’ animation. That is a useful concept when you have keyframes, if you don’t it’s way more practical just to do what feels like the best way to implement this.

    I would put some code in here, but I’m having a little bit of a hard time coming up with any since I’m not really sure what you’re trying to achieve here.

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