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

David Plakon
David Plakon
2,070 Points
Posted by David Plakon
David Plakon
2,070 Points

Works perfectly in X code, fails to pass the test.

class Robot: Machine {

override init() {
    super.init()
    self.location = Point(x: 0, y: 0)
}

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
    }        
}

}

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

class Robot: Machine {

    override init() {
        super.init()
        self.location = Point(x: 0, y: 0)
    }

    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
        }

    }
}

2 Answers

Michael Reining
Michael Reining
10,101 Points
Michael Reining
Michael Reining
10,101 Points

Hi David,

You are close but there is a typo again. Do not capitalize the instructions in in the switch statement.

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) { // Use lowercase just as they asked you to
        switch direction {
        case "Up": location.y = location.y + 1 // Up vs. UP... etc.
        case "Down": location.y -= 1
        case "Left": location.x -= 1
        case "Right": location.x += 1
        default: break
        }

    }
}

I hope that helps,

Mike

PS: Thanks to the awesome resources on Team Treehouse, I launched my first app.

Now you can practice writing Swift code directly on your iPhone :-)

Code! Learn how to program with Swift

David Plakon
David Plakon
2,070 Points
David Plakon
David Plakon
2,070 Points

ah sill mistake. Thanks again!