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iOS Build a Simple iPhone App with Swift 2.0 Getting Started with iOS Development Swift Recap Part 2

Jake White
Jake White
2,108 Points

I need help

I can't figure the correct way to code the switch statement

classes.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! Im a machine!")
    }
}

class Robot: Machine {
    override init() {

    }
    override func move(direction: String) {
        print("Up")
        print("Down")
        print("Left")
        print("Right")
    }


}



// Enter your code below

1 Answer

Danielle Shwed
Danielle Shwed
3,192 Points
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! Im a machine!")
    }
}

// Enter your code below

class Robot: Machine {
  override func move(direction: String) {
    switch direction{
      case "Up":
        super.location.y += 1
      case "Down":
        super.location.y -= 1
      case "Right":
        super.location.x += 1
      case "Left":
        super.location.x -= 1
      default:
        break

     }
  }
}

make sure to switch on direction (a string being either up down left or right) and include a default case in case what is entered is none of the above. super references the machine class where we have location with x and y coordinates.