Main Menu In Swift - swift

Question

I would like to create a main menu for my game in swift.
I am using the following code:
import SpriteKit
class menuScene: SKScene {
//Adding Start Button
let startButton = SKSpriteNode(imageNamed: "playButton")
override func didMove(to view: SKView) {
//Temporary Background
backgroundColor = SKColor.darkGray
//Start Button
startButton.position = CGPoint(x: size.width / 2, y: size.height / 2)
addChild(startButton)
}
override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
for touch in touches {
let location = touch.location(in: self); //Finding location of touch
if atPoint(location) == startButton {
if let scene = GameScene(fileNamed: "GameScene") {
scene.scaleMode = .aspectFill
view!.presentScene(scene, transition: SKTransition.doorsOpenVertical(withDuration: 1))
}
}
}
}
}
When I run this however, My app crashes and highlights if atPoint(location) == startButton {. with "Thread 1, Breakpoint 1.1"
Im not entirely sure what this is but I hope someone can help. Thanks!

Answer 1

Custom SKViews
Let's say, like this M.W.E., you want a menu, a difficulty, and a game scene.
Then you can make a series of custom SKViews to transition between.
GameViewController
This code loads the menuScene:
override func viewDidLoad() {
super.viewDidLoad()
let menuScene = MenuScene(size: view.bounds.size)
let skView = view as! SKView
skView.showsFPS = true
skView.showsNodeCount = true
skView.ignoresSiblingOrder = true
menuScene.scaleMode = .resizeFill
skView.presentScene(menuScene)
}
MenuScene
class MenuScene: SKScene {
let playButton = SKLabelNode()
override init(size: CGSize) {
super.init(size: size)
backgroundColor = SKColor.white
playButton.fontColor = SKColor.black
playButton.text = "play"
playButton.position = CGPoint(x: size.width / 2, y: size.height / 2)
addChild(playButton)
}
required init(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
let touch = touches.first
let touchLocation = touch!.location(in: self)
if playButton.contains(touchLocation) {
let reveal = SKTransition.doorsOpenVertical(withDuration: 0.5)
let difficultyScene = DifficultyScene(size: self.size)
self.view?.presentScene(difficultyScene, transition: reveal)
}
}
}
DifficultyScene
class DifficultyScene: SKScene {
let easyButton = SKLabelNode()
let hardButton = SKLabelNode()
let menuButton = SKLabelNode()
override init(size: CGSize) {
super.init(size: size)
backgroundColor = SKColor.white
easyButton.fontColor = SKColor.black
easyButton.text = "easy"
hardButton.fontColor = SKColor.black
hardButton.text = "hard"
menuButton.fontColor = SKColor.black
menuButton.text = "menu"
easyButton.position = CGPoint(x: size.width / 2, y: size.height / 2)
hardButton.position = CGPoint(x: size.width / 2, y: size.height / 2 - easyButton.fontSize * 2)
menuButton.position = CGPoint(x: size.width / 4 * 3, y: size.height / 4)
addChild(easyButton)
addChild(hardButton)
addChild(menuButton)
}
required init(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
let touch = touches.first
let touchLocation = touch!.location(in: self)
if easyButton.contains(touchLocation) {
let reveal = SKTransition.doorsOpenVertical(withDuration: 0.5)
let gameScene = GameScene(size: self.size, difficulty: easyButton.text!)
self.view?.presentScene(gameScene, transition: reveal)
}
if hardButton.contains(touchLocation) {
let reveal = SKTransition.doorsOpenVertical(withDuration: 0.5)
let gameScene = GameScene(size: self.size, difficulty: hardButton.text!)
self.view?.presentScene(gameScene, transition: reveal)
}
if menuButton.contains(touchLocation){
let reveal = SKTransition.doorsOpenVertical(withDuration: 0.5)
let menuScene = MenuScene(size: self.size)
self.view?.presentScene(menuScene, transition: reveal)
}
}
}
GameScene
add this to your GameScene:
init(size: CGSize, difficulty: String) {
super.init(size: size)
gameDifficulty = difficulty
}
required init?(coder aDecoder: NSCoder) {
fatalError("init(coder:) has not been implemented")
}
Storyboards
Alternatively, you can use Storyboards. In the M.W.E. for another S.O. question they have a basic "menu" set up.
In your case, what you would do is:
go to Main.storyboard.
on the right-hand tool bar, find view controller
drag view-controller into Main.storyboard
click on the new view-controller
click - on the right-hand tool bar - the identity inspector (looks like a business card)
change Class to GameViewController
click on view within the hierarchy on the left (under the new view controller)
click the identity inspector
change class to SKView
click on the original view controller
click on the identity inspector
change class to UIViewController
click on the view within the original UIViewController
click on identity inspector
change class to UIView
find button at the bottom of the right-hand side tool bar
drag it onto the first view
right click drag from the button to the second view
on the pop-up menu, under action segue, click show
right click drag from the button up, add horizontally center constraints
right click drag from the button to the right, add vertically center constraints
Images