Swift Enum Directions

Direction.swift

indirect enum Direction {
	case north(Float), east(Float), south(Float), west(Float)
	
	case go(Direction, Direction?)
}

extension Direction {
	var steps: String {
		switch self {
			case .north(let miles):
			return "North for \(miles) miles"
			case .east(let miles):
			return "East for \(miles) miles"
			case .south(let miles):
			return "South for \(miles) miles"
			case .west(let miles):
			return "West for \(miles) miles"
			case .go(let first, let second):
			if let second = second {
				return "Go \(first.steps), then \(second.steps)"
			}
			return "Go \(first.steps)"
		}
	}
}

let directions = Direction.go(.north(2), .go(.west(1), .south(0.1)))

print(directions.steps)