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Start your free trialMark Cai
1,505 Points'_' does not make sense
the move functions with argument '' direction makes no sense. What does '' suppose to do? Some external variable argument?
If I remove '_' from the argument and use just 'direction' the program runs OK.
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'm a machine!")
}
}
// Enter your code below
class Robot: Machine {
override init() {
super.init()
}
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:
break
}
}
}
2 Answers
Christian Mangeng
15,970 PointsHi Mark,
it runs perfectly. Try to restart the challenge and copy/paste the code you attached.
Marlon Henry
6,885 PointsThis will explain it fully for you:
Mark Cai
1,505 PointsSo why does my code not run?
thanks for the link.