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Start your free trialjosh kinney
1,576 PointsWhat am I doing incorrectly?
I think this is correct but it is not accepting the code.
class Point {
var x: Int
var y: Int
init(x: Int, y: Int) {
self.x = x
self.y = y
}
}
class Machine {
var location: Point
init() {
self.location = Point(x: 0, y: 0)
}
func move(_ direction: String) {
print("Do nothing! I am 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
Paolo Scamardella
24,828 PointsLook at the signature of the move method inside Machine class. The signature is ( _ direction: String). You are missing the underscore in Robot move method. When you override a method from the parent class, it needs to have the same signature.
If that along doesn't work, then I would remove case "Right" and substitute it with default: location.x += 1
switch direction {
case "Up": location.y += 1
case "Down": location.y -= 1
case "Left": location.x -= 1
default: location.x += 1
}
josh kinney
1,576 Pointsjosh kinney
1,576 PointsIt was the underscore!!!
Thank you