ios - 我的 Sprite 节点不会出现在我的场景中

Question

我创建了一个 SKScene 并使用 addChild 将我的 SKSpriteNode 放置在场景中。这表明该节点位于右下角，但看不到 Sprite 。一切看起来似乎都不错，但没有结果。我的 scene.scaleMode 是 .aspectFill，我已经确保 SKSpriteNode(imageNamed: "GreenBlock") 是正确的。我已经看过很多次了，但我不明白为什么它不会显示在屏幕上......

这是一个非常简单的任务。我见过其他人也这样做，而且效果很好。我已经尝试了所有我能想到的...

我的 View Controller

import UIKit
import SpriteKit

class GreenSnakeController: UIViewController {

    override func loadView() {
        self.view = SKView()
    }

    override func viewDidLoad() {
        super.viewDidLoad()

        if let SKView = self.view as! SKView? {
            let scene = GameScene(size: view.bounds.size)

            SKView.ignoresSiblingOrder = true
            SKView.showsFPS = true
            SKView.showsNodeCount = true
            scene.scaleMode = .resizeFill
            SKView.presentScene(scene)
        }

        self.navigationController?.navigationBar.isHidden = true
    }

    override func viewDidAppear(_ animated: Bool) {
        navigationController?.navigationBar.barStyle = .black
    }

    override var preferredStatusBarStyle: UIStatusBarStyle {
        return .lightContent
    }

    override var prefersHomeIndicatorAutoHidden: Bool {
        return true
    }
}

我的游戏场景类

import UIKit
import SpriteKit

class GameScene: SKScene {

    var snakeBlock: SKSpriteNode!

    override func didMove(to view: SKView) {
        layoutScene()
    }

    func layoutScene() {
        backgroundColor = #colorLiteral(red: 0.262745098, green: 0.262745098, blue: 0.262745098, alpha: 1)

        snakeBlock = SKSpriteNode(imageNamed: "GreenBlock")
        snakeBlock.size = CGSize(width: frame.size.width/8.0, height: frame.size.width/8.0)
        snakeBlock.position = CGPoint(x: frame.midX, y: frame.midY)
        addChild(snakeBlock)
    }
}

我希望屏幕上显示一些内容，尽管它表明有两个节点，但我只看到第一个节点的场景。

Answer 1

import UIKit
import SpriteKit

class GameViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        if let view = self.view as! SKView? {
            // Load the SKScene from 'GameScene.sks'
            if let scene = SKScene(fileNamed: "GameScene") {
                // Set the scale mode to scale to fit the window
                scene.scaleMode = .aspectFill

                // Present the scene
                view.presentScene(scene)
            }

            view.ignoresSiblingOrder = true

            view.showsFPS = true
            view.showsNodeCount = true
        }

        self.navigationController?.navigationBar.isHidden = true
    }

    override var shouldAutorotate: Bool {
        return true
    }

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

    override var prefersStatusBarHidden: Bool {
        return true
    }


    override func loadView() {
        self.view = SKView()
    }


    override func viewDidAppear(_ animated: Bool) {
        navigationController?.navigationBar.barStyle = .black
    }

    override var preferredStatusBarStyle: UIStatusBarStyle {
        return .lightContent
    }

    override var prefersHomeIndicatorAutoHidden: Bool {
        return true
    }
}

只需更改Apple推荐的viewDidLoad()，当我尝试它时，它就对我有用。让我知道这是否适合您