missionpinball
Custom easing formulas
This isn't something that's needed via configs, but we need to figure out how to add custom easing formulas.
Also (possibly related) is we don't have a good way to not use easing today in animations. For example, if you flash a widget, it always fades in and fades out. But what if we just want it to flash instant on / instant off? Maybe this is done with an easing type called "instant" which just instantly sets the eased attribute to the new value? (This could be an example of a custom easing formula.)
Is it ok to monkeypatch Kivy's AnimationTransition to add new static methods?
https://github.com/kivy/kivy/blob/master/kivy/animation.py#L528
I can't think of any easier way, but I think monkeypatching is frowned upon? Though in this case, MPF and Kivy are so tightly intertwined that it's probably safe?
Can we just overload the class? Like create MpfAnimationTransition and add the methods there?
problem with that is that kivy uses its class, and the class above that uses its class, and so on all the way up. We can discuss in chicago I guess..
Looks like bad design on their side. Then we have to monkey patch unfortunately.
I have discovered the Kivy Animation class will either accept a string for the transition argument or a function reference so using a custom animation method is as easy as passing in a function reference to a custom easing function.
