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# How to access the move function?

Trying to access the move function to see if the direction works but it's not working.

Anyone can give me a hand on this one?

Thanks,

Julien

classes.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: location.y += 1
case .Down: location.y -= 1
case .Right: location.x += 1
case .Left: location.x -= 1
}
}
}
```

The method is an instance method, so you need to create an instance of Robot() in order to use any functions inside the Robot() class.

```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: location.y += 1
case .Down: location.y -= 1
case .Right: location.x += 1
case .Left: location.x -= 1
}
}
}

// testing the move method
var newRobot = Robot()  // location: (x = 0, y = 0)
newRobot.move(Direction.Up)
newRobot.location // location: (x = 0, y = 1)
```