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iOS Build a Simple iPhone App with Swift Getting Started with iOS Development Swift Recap Part 2

David Cruz
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.a{fill-rule:evenodd;}techdegree
David Cruz
iOS Development Techdegree Student 1,818 Points

Need Help With This Code Challenge

I don´t know how to do this code challenge

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!")
  }
}

// Enter your code below

class Robot: Machine {

    override func move(_ direction: String) {

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

1 Answer

Rodrigo Villalobos
Rodrigo Villalobos
2,546 Points

You're almost there, only inside your move override function, the switch should take direction as parameter, not move.