How do you do this? I forgot how to deal with coordinates and switch statements, etc.

Question

Hi,
Can someone help me solve this.  It has been a while since I did this stuff, and I need to be caught up again.
Thank you so much.  :)
Instructions:
In the editor you've been provided with two classes - Point to represent a coordinate point and Machine. The machine has a move method that doesn't do anything because most machines are motionless.
Your task is to subclass Machine and create a new class named Robot. In the Robot class, override the move method and provide the following implementation.
If you enter the string "Up" the y coordinate of the Robot's location increases by 1. "Down" decreases it by 1.
If you enter "Left", the x coordinate of the location property decreases by 1 while "Right" increases it by 1.
Note: If you use a switch statement you can use the break statement in the default clause to exit the current iteration.
```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!")
}
}
// Enter your code below
let Robot: Machine {
override func move(direction: String){
}
}
```

Mackenzy Douyon · Answer

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
        } } }

John Roque Jorillo · Answer

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
          }
    }
}
Your task is to subclass Machine and create a new class named Robot
- You should create class rather than a constant

Mitchell Henderson · Answer

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 
} 
} 
}

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Lana Wong

Lana Wong

How do you do this? I forgot how to deal with coordinates and switch statements, etc.

3 Answers

John Roque Jorillo

John Roque Jorillo

Mackenzy Douyon

Mackenzy Douyon

Mitchell Henderson

Mitchell Henderson