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Start your free trialMichael DeCroce-Movson
4,277 PointsThe error says "You must deploy an implementation for the move method"
But when I use it in xcode, it's totally functional. Why?
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 .left:
self.location.x = self.location.x - 1
case .right:
self.location.x = self.location.x + 1
case .up:
self.location.y = self.location.y + 1
case .down:
self.location.y = self.location.y - 1
}
}
}
1 Answer
David Papandrew
8,386 PointsI see that in the initial code the exercise offers, there is an underscore for external name for the move function's direction parameter. If you add that back to your code, it passes (I tried it).
This is the specific line you need to modify:
func move(_ direction: Direction) {
Hopefully that will work for you.
Michael DeCroce-Movson
4,277 PointsMichael DeCroce-Movson
4,277 Pointswhy does that matter? and thank you!