Why is Korma's Easing interface not an enum?

nanodeath

Question for @soywiz: why are all the easings in Easing.kt in a hidden object and not in an enum?

Seems like

interface Easing {
    operator fun invoke(it: Double): Double
}
enum class Easings : Easing {
    LINEAR {
        override fun invoke(it: Double) = it
    }
    // etc
}

should work great, no?

While working on https://github.com/korlibs/korma/pull/42 I thought it'd be nice to have a test case that iterated over all the easings to perform some basic assertions on them, but the current structure makes this difficult.

soywiz

Well, the problem of enums is that are closed. What if a user wants to provide his/her own Easing?
Maybe what we can provide is a list or a map with all the standard provided easings. That would work for you?

nanodeath.1

To close the loop on this, I've submitted a PR to change this in korge-next and it's been merged.