import UIKit
public extension UIColor {
  public convenience init(r: CGFloat, g: CGFloat, b: CGFloat) {
    self.init(red: r/255, green: g/255, blue: b/255, alpha: 1)
  }
}
extension Int {
  var degreesToRadians: CGFloat {
    return CGFloat(self) * .pi / 180.0
  }
}
extension Double {
  var toTimeString: String {
    let seconds: Int = Int(self.truncatingRemainder(dividingBy: 60.0))
    let minutes: Int = Int(self / 60.0)
    return String(format: "%d:%02d", minutes, seconds)
  }
}