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TimingFunction.swift
import Foundation
enum timingFunction{
case Linear,EaseIn,EaseOut,EaseInOut,
Spring,
EaseInSine,EaseOutSine,EaseInOutSine,
EaseInQuad,EaseOutQuad,EaseInOutQuad,
EaseInCubic,EaseOutCubic,EaseInOutCubic,
EaseInQuart,EaseOutQuart,EaseInOutQuart,
EaseInQuint,EaseOutQuint,EaseInOutQuint,
EaseInExpo,EaseOutExpo,EaseInOutExpo,
EaseInCirc,EaseOutCirc,EaseInOutCirc,
EaseInBack,EaseOutBack,EaseInOutBack
}
func getTimingFunction(curve:timingFunction) -> CAMediaTimingFunction {
switch curve {
case .Linear:
return CAMediaTimingFunction(name: kCAMediaTimingFunctionLinear)
case .EaseIn:
return CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseIn)
case .EaseOut:
return CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseOut)
case .EaseInOut:
return CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
case .Spring:
return CAMediaTimingFunction(controlPoints: 0.5, 1.1+Float(1/3), 1, 1)
case .EaseInSine:
return CAMediaTimingFunction(controlPoints: 0.47, 0, 0.745, 0.715)
case .EaseOutSine:
return CAMediaTimingFunction(controlPoints: 0.39, 0.575, 0.565, 1)
case .EaseInOutSine:
return CAMediaTimingFunction(controlPoints: 0.445, 0.05, 0.55, 0.95)
case .EaseInQuad:
return CAMediaTimingFunction(controlPoints: 0.55, 0.085, 0.68, 0.53)
case .EaseOutQuad:
return CAMediaTimingFunction(controlPoints: 0.25, 0.46, 0.45, 0.94)
case .EaseInOutQuad:
return CAMediaTimingFunction(controlPoints: 0.455, 0.03, 0.515, 0.955)
case .EaseInCubic:
return CAMediaTimingFunction(controlPoints: 0.55, 0.055, 0.675, 0.19)
case .EaseOutCubic:
return CAMediaTimingFunction(controlPoints: 0.215, 0.61, 0.355, 1)
case .EaseInOutCubic:
return CAMediaTimingFunction(controlPoints: 0.645, 0.045, 0.355, 1)
case .EaseInQuart:
return CAMediaTimingFunction(controlPoints: 0.895, 0.03, 0.685, 0.22)
case .EaseOutQuart:
return CAMediaTimingFunction(controlPoints: 0.165, 0.84, 0.44, 1)
case .EaseInOutQuart:
return CAMediaTimingFunction(controlPoints: 0.77, 0, 0.175, 1)
case .EaseInQuint:
return CAMediaTimingFunction(controlPoints: 0.755, 0.05, 0.855, 0.06)
case .EaseOutQuint:
return CAMediaTimingFunction(controlPoints: 0.23, 1, 0.32, 1)
case .EaseInOutQuint:
return CAMediaTimingFunction(controlPoints: 0.86, 0, 0.07, 1)
case .EaseInExpo:
return CAMediaTimingFunction(controlPoints: 0.95, 0.05, 0.795, 0.035)
case .EaseOutExpo:
return CAMediaTimingFunction(controlPoints: 0.19, 1, 0.22, 1)
case .EaseInOutExpo:
return CAMediaTimingFunction(controlPoints: 1, 0, 0, 1)
case .EaseInCirc:
return CAMediaTimingFunction(controlPoints: 0.6, 0.04, 0.98, 0.335)
case .EaseOutCirc:
return CAMediaTimingFunction(controlPoints: 0.075, 0.82, 0.165, 1)
case .EaseInOutCirc:
return CAMediaTimingFunction(controlPoints: 0.785, 0.135, 0.15, 0.86)
case .EaseInBack:
return CAMediaTimingFunction(controlPoints: 0.6, -0.28, 0.735, 0.045)
case .EaseOutBack:
return CAMediaTimingFunction(controlPoints: 0.175, 0.885, 0.32, 1.275)
case .EaseInOutBack:
return CAMediaTimingFunction(controlPoints: 0.68, -0.55, 0.265, 1.55)
default:
return CAMediaTimingFunction(name: kCAMediaTimingFunctionDefault)
}
}
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