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Start your free trialVincent Nguyen
4,520 PointsNeed help with enum
It keeps telling me
Cannot convert value of type '(Direction) -> ()' to expected argument type '_?'
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) {
// Enter your code below
switch move {
case Direction.up: y += 1
}
}
}
1 Answer
Jhoan Arango
14,575 PointsHello,
You are trying to switch on the "Function name" instead you have to switch on the "parameter name" which in this case is "direction". Also you have to finish the implementation of all the possible outcomes in the direction enum, to make it "exhaustive".
func move(_ direction: Direction) {
// Enter your code below
switch direction {
case .left. : location.x -= 1
case .right : location.x += 1
case .up. : location.y += 1
case .down: location.y -= 1
}
}
Good luck