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# What's missing?

test.swift
```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 .up : Robot().location.y + 1
case .down : Robot().location.y - 1
case .right : Robot().location.x + 1
case .left : Robot().location.x - 1
}
}
}
```

Hi 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.