i need help overriding this method

Hey Billy Potts

The first thing we need to do is create your Robot class which subclasses Machine. You do this by writing a semicolon after the Robot class name and then writing the name of the Machine class.

class Robot: Machine {

}

Now inside of this class we will need to provide the override implementation for the move function. Since this method already exists in the parent class, we will need to write override before the function declaration to do this.

This method will take a single parameter, named direction, of type String. We will then switch on this direction inside the body of the method.

For the case where the direction matches the String "Up", we will increment the location.y value by 1.

For the case where the direction matches the String "Down", we will decrement the location.y value by 1.

For the case where the direction matches the String "Left", we will decrement the location.x value by 1.

For the case where the direction matches the String "Right", we will increment the location.x value by 1.

In the default case we will simply do nothing and break out of the switch statement.

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!")
    }
}

// Enter your code below

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
        }
    }
}

Good Luck!