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carinaortiz
2,358 PointsPlease help!
Why is this not working? I've been stuck for over an hour.
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 Machine {
var location: Point
init() {
self.location = Point(x: 0, y: 0)
}
func move(direction: String) {
print("Do nothing! Im a machine!")
}
}
class Robot: Machine {
override func move(direction: String){
switch direction {
case "Up": location.y += 1
case "Down": location.y -= 1
case "Left": location.x -= 1
case "Right": location.x += 1
default: "dont move"
}
}
}
1 Answer
Christian Mangeng
15,969 PointsHi Carina,
this is a good example of how picky programming can be. If you restart the challenge you can see that the superclass "move" method explicitly has no external parameter name defined (see the underscore, you seem to have removed it). When you override this method later, it needs to override EXACTLY that kind of method, otherwise override will throw an error because you would override a new kind of method. Add this underscore in both the superclass and the overridden subclass method and you will pass:
func move(_ direction: String) {
}