50 lines
1.3 KiB
Lua
Executable file
50 lines
1.3 KiB
Lua
Executable file
--- Linear easing (in quotes).
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local linear = {
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F = 0.5,
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easing = function(t) return t end
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}
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--- Sublinear (?) easing.
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local zero = {
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F = 1,
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easing = function() return 1 end
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}
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--- Quadratic easing.
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local quadratic = {
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F = 1/3,
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easing = function(t) return t * t end
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}
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--bouncy constants
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local b_cs = {
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c1 = 6 * math.pi - 3 * math.sqrt(3) * math.log(2),
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c2 = math.sqrt(3) * math.pi,
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c3 = 6 * math.sqrt(3) * math.log(2),
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c4 = 6 * math.pi - 6147 * math.sqrt(3) * math.log(2),
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c5 = 46 * math.pi / 6
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}
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-- Okay look. It works. It's not terribly slow because computers can do math
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-- quick. The other one decidedly does not work (thanks sagemath, I trusted
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-- you...) so this will have to do. I may try to fix it up at some point, I may
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-- just leave it be and laugh to myself whenever I see this. As they say, if
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-- As they say, if you want something fixed that badly, make a pull request lol
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local bouncy = {
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F = (20*math.sqrt(3)*math.pi-30*math.log(2)-6147) /
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(10*(2*math.sqrt(3)*math.pi-6147*math.log(2))),
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easing = function(t) return
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(4096*math.pi*math.pow(2, 10*t-10)*math.cos(20/3*math.pi*t-43/6*math.pi)
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+6144*math.pow(2, 10*t-10)*math.log(2)*math.sin(20/3*math.pi*t-43/6*math.pi)
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+2*math.sqrt(3)*math.pi-3*math.log(2)) /
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(2*math.pi*math.sqrt(3)-6147*math.log(2))
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end
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}
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return {
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linear = linear,
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zero = zero,
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quadratic = quadratic,
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bouncy = bouncy
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}
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