BreatheApp9.swift

private struct ForgroundRingView: View {
    var percentage: Double = 0.5
    let ringWidth: CGFloat
    
    
    var body: some View {
        let spectrum = Gradient(colors: [ Color.mintGreenColor, Color.darkMintColor])
        let conic = AngularGradient(gradient: spectrum, center: .center, angle: .radians(getEndAngle().radians))
        let ring = RingShape(startAngle: getStartAngle(), endAngle: getEndAngle(), ringWidth: ringWidth).fill(conic)
        return ring
    }
    
    
    func getStartAngle() -> Angle {
        return Angle.radians(-.pi/2)
    }
    
    
    func getEndAngle() -> Angle {
        return Angle.radians(2*Double.pi*percentage - Double.pi/2)
    }
}