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Start your free trialGabriel Spranger Rojas
7,350 PointsWhat's missing?
Please help I'm clueless.
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 direction {
case .up : Robot().location.y + 1
case .down : Robot().location.y - 1
case .right : Robot().location.x + 1
case .left : Robot().location.x - 1
}
}
}
1 Answer
Simon Di Giovanni
8,429 PointsHi Gabriel
You were REALLY close with this one! Great job.
With this, it's important to remember scope.
Here is the correct code to use
func move(_ direction: Direction) {
switch direction {
case .up : location.y += 1
case .down : location.y -= 1
case .right : location.x += 1
case .left : location.x -= 1
}
As you can see, I have removed 'Robot()'This is not needed, because you are INSIDE Robot()! So you have access to 'location' in the function, because 'location' only exists within Robot()!
Also, when incrementing a value by 1, use '+=' or "-=" (not just + or -) to increment by the given value
If this doesn't make sense please let me know.