Sprite support to ping pong animation forward and then reversed

[tylerwilbanks]

I want to play an animation forward and then play it backwards indefinitely. Currently sprite.playAnimationLooped() does not provide this behavior; it only allows for forward or reversed.

[soywiz]

Hi @tylerwilbanks . What's your use-case for this? F, B* (Forward and then Backwards in loop)

[tylerwilbanks]

I have a 6 frame sprite idle animation where the character decays a bit and then rebuilds itself. It's an idle animation, so of course I want it to repeat indefinitely until the user inputs an action to switch animation.

By having the ping pong animation functionality, I can keep the sprite anim at 6 frames, instead of creating a 12 frame animation with duplicate frames to achieve the same effect.

[tylerwilbanks]

Aseprite has this ping pong animation functionality built-in, and by having this same functionality in korge, that would make my workflow between the two tools much smoother.