Bai Tap Class

Bai Tap Class.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 init() {
        super.init()
        self.location = Point(x: 0, y: 0)
    }
    
    override func move(direction: String) {
        switch direction {
            case "Up": self.location.y = self.location.y + 1
            case "Down": self.location.y = self.location.y - 1
            case "Left": self.location.x = self.location.x - 1
            case "Right": self.location.x = self.location.x + 1
            default: print("Do nothing! I'm not move!")
        }
    }
}

var newRobot = Robot()

newRobot.location.y

newRobot.move("Up")

newRobot.location.y