Swift 3 Enum and Objects Code challenge

Question

I have no idea why my code isn't passing, It keeps saying expected declaration of Robot, Idk why

test.swift

class Point {
    var x: Int
    var y: Int

    init(x: Int, y: Int) {
        self.x = x
        self.y = y
    }
}

enum Direction {
    case left
    case right
    case up
    case down
}

class Robot {
    var location: Point

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

  func move(direction: Direction) {
        // Enter your code below
        switch direction {
        case .up:
            return location.y += 1
        case .down:
            return location.y -= 1
        case .right:
            return location.x += 1
        default:
            return location.x -= 1
        }
}

Answer 1 · 2017-01-25T23:00:43Z

January 25, 2017 11:00pm

You are close but there are a couple of problems with your code.

1) Leave the external name (underscore) in the move function. It is included in the starter code, but it's removed from your solution. You may have done this without noticing.

2) Remove the return statements in the switch statement. Your function is not set to return anything.

3) Change the stored property being changed by the switch statement to "self"

Here's the code for the Robot Class:

class Robot {
    var location: Point

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

    func move(_ direction: Direction) {
        // Enter your code below
        switch direction {
        case .up: self.location.y += 1
        case .down: self.location.y -= 1
        case .right: self.location.x += 1
        case .left: self.location.x -= 1
        }
    }
}

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Tywan Claxton

Tywan Claxton

Swift 3 Enum and Objects Code challenge

1 Answer

David Papandrew

David Papandrew