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iOS Swift 2.0 Enumerations and Optionals Introduction to Enumerations Getting Rid of Strings

Posted by Cobie Fisher
Cobie Fisher
4,555 Points

Kinda Stuck... Answers?

Yeah so I tried doing this next challenge but I don't quite remember how to use classes properly, so can someone post the answer to it. And not just so I can "Copy", I legit want to use it for learning purposes.

https://teamtreehouse.com/library/swift-20-enumerations-and-optionals/introduction-to-enumerations/enums-and-objects

1 Answer

Paul Brazell
Paul Brazell
14,371 Points
Paul Brazell
Paul Brazell
14,371 Points

In your move function, all it is asking you to do is to specify what happens when a direction is chosen to be moved. Switch statements are awesome for this. Simply specify what happens to the location's x and y values when a direction is chosen. 

    func move(direction: Direction) {
        // Enter your code below
        switch direction {
        case .Up: location.y += 1
        case .Down: location.y -= 1
        case .Right: location.x += 1
        case .Left: location.x -= 1

        }
}