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# Stuck On It

I'm on the preview and i don't understand what is still the problem.

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) {
// Enter your code below
func enum_move(direction: Direction){
switch direction{
case .up: self.location.y += 1
case .down: self.location.y -= 1
case .left: self.location.x -= 1
case .right: self.location.x += 1
}
}
}
```

You are really close, I see two problems: 1) You removed the underscore for the external parameter name in the move func (just add it back)

2) You don't need the func enum_move line (remove it)

Here's the code (it passed when I tested it):

```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: self.location.y += 1
case .down: self.location.y -= 1
case .left: self.location.x -= 1
case .right: self.location.x += 1
}
}
}
```