如何将UICollectionView添加到SpriteKit GameViewController

Question

我正在尝试为我的游戏创建一个菜单，需要一些属于UICollectionView的效果，所以我没有重新发明轮子，而是使用了我从{{3因为它接近我想要实现的目标。我的游戏以我在GameViewController加载的posterScene开头，如何用collectionView中的MenuViewContoller替换我的posterScene？

请查看下面的代码：

MenuViewController：

class MenuViewController: UIViewController, UICollectionViewDataSource, UICollectionViewDelegate, UICollectionViewDelegateFlowLayout {


lazy var collectionView: UICollectionView = {
    let layout = UICollectionViewFlowLayout()
    layout.scrollDirection = .horizontal
    layout.minimumLineSpacing = 0
    let cv = UICollectionView(frame: .zero, collectionViewLayout: layout)
    cv.backgroundColor = .red
    cv.dataSource = self
    cv.delegate = self
    cv.isPagingEnabled = true
    return cv
}()


let cellId = "cellId"

override func viewDidLoad() {
    super.viewDidLoad()

    view.addSubview(collectionView)

    //use autolayout instead
    collectionView.anchorToTop(top: view.topAnchor, left: view.leftAnchor, bottom: view.bottomAnchor, right: view.rightAnchor)

    collectionView.register(PageCell.self, forCellWithReuseIdentifier: cellId)
}

func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
    return 4
}

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: cellId, for: indexPath as IndexPath)

    return cell
}

func collectionView(collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAtIndexPath indexPath: NSIndexPath) -> CGSize {
    return CGSize(width: view.frame.width, height: view.frame.height)
}

required init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}


}

extension UIView {

func anchorToTop(top: NSLayoutYAxisAnchor? = nil, left: NSLayoutXAxisAnchor? = nil, bottom: NSLayoutYAxisAnchor? = nil, right: NSLayoutXAxisAnchor? = nil) {

    anchorWithConstantsToTop(top: top, left: left, bottom: bottom, right: right, topConstant: 0, leftConstant: 0, bottomConstant: 0, rightConstant: 0)
}

func anchorWithConstantsToTop(top: NSLayoutYAxisAnchor? = nil, left: NSLayoutXAxisAnchor? = nil, bottom: NSLayoutYAxisAnchor? = nil, right: NSLayoutXAxisAnchor? = nil, topConstant: CGFloat = 0, leftConstant: CGFloat = 0, bottomConstant: CGFloat = 0, rightConstant: CGFloat = 0) {

    translatesAutoresizingMaskIntoConstraints = false

    if let top = top {
        topAnchor.constraint(equalTo: top, constant: topConstant).isActive = true
    }

    if let bottom = bottom {
        bottomAnchor.constraint(equalTo: bottom, constant: -bottomConstant).isActive = true
    }

    if let left = left {
        leftAnchor.constraint(equalTo: left, constant: leftConstant).isActive = true
    }

    if let right = right {
        rightAnchor.constraint(equalTo: right, constant: -rightConstant).isActive = true
    }

}

}

GameViewController：

class GameViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()

}

override func viewWillLayoutSubviews() {
    super.viewWillLayoutSubviews()

    let skView = self.view as? SKView

    if skView?.scene == nil  {
        skView?.showsFPS = true
        skView?.showsNodeCount = true
        skView?.showsPhysics = false
        skView?.ignoresSiblingOrder = false

         //starting the game with the Poster Scene
        let posterScene = PosterScene(size: skView!.bounds.size) 
        posterScene.scaleMode = .aspectFill
        skView?.presentScene(posterScene)
    }

override var shouldAutorotate : Bool {
    return true
}
override var supportedInterfaceOrientations : UIInterfaceOrientationMask {
    if UIDevice.current.userInterfaceIdiom == .phone {
        return UIInterfaceOrientationMask.allButUpsideDown
    } else {
        return UIInterfaceOrientationMask.all
    }
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
}

override var prefersStatusBarHidden : Bool {
    return true
}
}

PosterScene

class PosterScene: SKScene {



override init(size: CGSize){
    super.init(size: size)
    //self.anchorPoint = CGPoint(x:0.5, y:0.5) //let's put 0,0 at the center of the screen
    let posterImage = SKSpriteNode(imageNamed: "poster")
    posterImage.position = CGPoint(x: self.frame.midX, y: self.frame.midY) //CGPoint(x:736/2, y:414/2)//CGPoint.zero
    self.addChild(posterImage)
    let sequence = SKAction.sequence([  SKAction.wait(forDuration: 3.0), SKAction.run({ self.changeToCollectionView() }) ])

    self.run(sequence)
}

func changeToCollectionView  ()  {

   //code for changing to collection view goes here
}

required init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
}
}