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

abdirahman liban
PLUS
abdirahman liban
Courses Plus Student 2,163 Points

can i get help i coludn't solve it

i couldn't solve this challenge

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! I'm a machine!")
    }
}

// Enter your code below

1 Answer

I'll run through the steps I took for this one. I started by creating the new subclass...

class Robot: Machine {

}

Next, I added the move method to override the one in Machine...

class Robot: Machine {
    override func move(direction: String) {

    }
}

Finally, I added a switch to alter the location depending on the value of the direction string...

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