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

Davis Meissner
Davis Meissner
1,179 Points
Posted by Davis Meissner
Davis Meissner
1,179 Points

i just want to find the answer

I just want to find the answer

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

jcorum
jcorum
71,830 Points
jcorum
jcorum
71,830 Points

Davis, here you go:

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

By the way, there's a bug in the challenge code that makes anything you enter look green. That's caused by the single quote inside the double quotes in the function:

    func move(direction: String) {
        print("Do nothing! I'm a machine!")
    }

If you change I'm to Im the color coding returns to normal, and the editor will accept it.

I reported this to Treehouse over a month ago, but heard nothing back from them about it, and clearly they haven't fixed it yet.