UICubicTimingParameters+Curves.swift

import UIKit

// http://easings.net/
@available(iOS 10.0, *)
extension UICubicTimingParameters {

  public class func easeInSine() -> UICubicTimingParameters { return UICubicTimingParameters(0.47, 0, 0.745, 0.715) }
  public class func easeOutSine() -> UICubicTimingParameters { return UICubicTimingParameters(0.39, 0.575, 0.565, 1) }
  public class func easeInOutSine() -> UICubicTimingParameters { return UICubicTimingParameters(0.445, 0.05, 0.55, 0.95) }
  public class func easeInQuad() -> UICubicTimingParameters { return UICubicTimingParameters(0.55, 0.085, 0.68, 0.53) }
  public class func easeOutQuad() -> UICubicTimingParameters { return UICubicTimingParameters(0.25, 0.46, 0.45, 0.94) }
  public class func easeInOutQuad() -> UICubicTimingParameters { return UICubicTimingParameters(0.455, 0.03, 0.515, 0.955) }
  public class func easeInCubic() -> UICubicTimingParameters { return UICubicTimingParameters(0.55, 0.055, 0.675, 0.19) }
  public class func easeOutCubic() -> UICubicTimingParameters { return UICubicTimingParameters(0.215, 0.61, 0.355, 1) }
  public class func easeInOutCubic() -> UICubicTimingParameters { return UICubicTimingParameters(0.645, 0.045, 0.355, 1) }
  public class func easeInQuart() -> UICubicTimingParameters { return UICubicTimingParameters(0.895, 0.03, 0.685, 0.22) }
  public class func easeOutQuart() -> UICubicTimingParameters { return UICubicTimingParameters(0.165, 0.84, 0.44, 1) }
  public class func easeInOutQuart() -> UICubicTimingParameters { return UICubicTimingParameters(0.77, 0, 0.175, 1) }
  public class func easeInQuint() -> UICubicTimingParameters { return UICubicTimingParameters(0.755, 0.05, 0.855, 0.06) }
  public class func easeOutQuint() -> UICubicTimingParameters { return UICubicTimingParameters(0.23, 1, 0.32, 1) }
  public class func easeInOutQuint() -> UICubicTimingParameters { return UICubicTimingParameters(0.86, 0, 0.07, 1) }
  public class func easeInExpo() -> UICubicTimingParameters { return UICubicTimingParameters(0.95, 0.05, 0.795, 0.035) }
  public class func easeOutExpo() -> UICubicTimingParameters { return UICubicTimingParameters(0.19, 1, 0.22, 1) }
  public class func easeInOutExpo() -> UICubicTimingParameters { return UICubicTimingParameters(1, 0, 0, 1) }
  public class func easeInCirc() -> UICubicTimingParameters { return UICubicTimingParameters(0.6, 0.04, 0.98, 0.335) }
  public class func easeOutCirc() -> UICubicTimingParameters { return UICubicTimingParameters(0.075, 0.82, 0.165, 1) }
  public class func easeInOutCirc() -> UICubicTimingParameters { return UICubicTimingParameters(0.785, 0.135, 0.15, 0.86) }
  public class func easeInBack() -> UICubicTimingParameters { return UICubicTimingParameters(0.6, -0.28, 0.735, 0.045) }
  public class func easeOutBack() -> UICubicTimingParameters { return UICubicTimingParameters(0.175, 0.885, 0.32, 1.275) }
  public class func easeInOutBack() -> UICubicTimingParameters { return UICubicTimingParameters(0.68, -0.55, 0.265, 1.55) }

  private convenience init(_ x1: CGFloat, _ y1: CGFloat, _ x2: CGFloat, _ y2: CGFloat) {
    self.init(controlPoint1: .init(x: x1, y: y1), controlPoint2: .init(x: x2, y: y2))
  }

}