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Start your free trialGerald Darroles
3,569 PointsEnumerations code challenge
Hello!
Am I missing something in solving this? I believe I may need some help on how I retrieve properties in solving this code challenge. please help.
also, if you have additional readings, that will help a lot.
thank you
Gerald
class Point {
var x: Int
var y: Int
init(x: Int, y: Int) {
self.x = x
self.y = y
}
}
enum Direction {
case left
case right
case up
case down
}
class Robot {
var location: Point
init() {
self.location = Point(x: 0, y: 0)
}
func move(_ direction: Direction) {
switch direction {
case Direction.up: location.y + 1
case Direction.down: location.y - 1
case Direction.right: location.x + 1
case Direction.left: location.x - 1
}
}
}
1 Answer
Magnus Hållberg
17,232 PointsYou have made a small mistake, you are supposed to update the existing locations value with + or - 1. As it is now you are just calculating it, not reading it back to location. So the switch needs to look like this:
switch direction {
case .up: location.y += 1
case .down: location.y -= 1
case .right: location.x += 1
case .left: location.x -= 1
}
Gerald Darroles
3,569 PointsGerald Darroles
3,569 PointsThank you so much Magnus. You are Great, i.e.Magnus.