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odrobnik/simpler.swift

Created February 24, 2023 15:26
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simpler.swift
func unitSquareIntersectionPoint(_ angle: Angle) -> UnitPoint {
let normalizedDegree = angle.degrees.truncatingRemainder(dividingBy: 360)
let degreeProportion = (normalizedDegree / 90).truncatingRemainder(dividingBy: 4)
switch degreeProportion {
case 0: return UnitPoint(x: 1.0, y: 1.0)
case 1: return UnitPoint(x: 1.0, y: 1.0 - (normalizedDegree - 270) / 90)
case 2: return UnitPoint(x: 1.0 - (normalizedDegree - 180) / 90, y: 0.0)
case 3: return UnitPoint(x: 0.0, y: (normalizedDegree - 90) / 90)
default: return .zero
}
}
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