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Not sure how to complete exercise.

Hi, I'm not sure why I'm receiving an error with the exercise. Here is my code:

class Point { var x: Int var y: Int

```init(x: Int, y: Int) {
self.x = x
self.y = y
}
```

}

class Machine { var location: Point

```init() {
self.location = Point(x: 0, y: 0)
}

func move(_ direction: String) {
print("Do nothing! I'm a machine!")
}
```

}

class Robot: Machine {

```override init() {

func move(_ direction: String) {

switch direction {
case "Up": location.y += 1
case "Down": location.y -= 1
case "Left": location.x -= 1
case "Right": location.x += 1
default: break }

}
```

}

}

Any help would be greatly appreciated!

Thanks, Ben

robots.swift
```class Point {
var x: Int
var y: Int

init(x: Int, y: Int) {
self.x = x
self.y = y
}
}

class Machine {
var location: Point

init() {
self.location = Point(x: 0, y: 0)
}

func move(_ direction: String) {
print("Do nothing! I'm a machine!")
}
}

class Robot: Machine {

override init() {

func move(_ direction: String) {

switch direction {
case "Up": location.y += 1
case "Down": location.y -= 1
case "Left": location.x -= 1
case "Right": location.x += 1
default: break }

}

}

}
```

Hi Benjamin - The problem is your Robot class; here is how it should look; you are overriding the functions incorrectly

```class Robot: Machine {

override func move(_ direction: String) {
switch direction {
case "Up":
location.y += 1
case "Down":
location.y -= 1
case "Left":
location.x -= 1
case "Right":
location.x += 1
default:
break
}
}
}
```