旋转设备时如何更改 SKScene 大小?

How to change SKScene size when rotate Device?

我正在尝试制作一个使用递归函数呈现分形树的 SKScene。每个分支都是一个SKShapeNode。初始线长应始终是场景高度的百分比。我有一个计算变量用于当前 returns frame.height * 0.3 的第一行长度。我的问题是我想在设备旋转时保持正确的百分比。我将以下代码添加到我的 ViewController:

    var scene: FractalTreeScene!
    override func didRotate(from fromInterfaceOrientation: UIInterfaceOrientation) {
        if fromInterfaceOrientation == .landscapeLeft || fromInterfaceOrientation == .landscapeRight {
            scene.size = CGSize(width: 1337, height: 750)
        } else {
            scene.size = CGSize(width: 750, height: 1337)
        }
        scene.drawTree()
    }
    override func viewDidLoad() {
        super.viewDidLoad()


        if let view = self.view as! SKView? {
            // Load the SKScene from 'GameScene.sks'
            scene = FractalTreeScene()
            // Set the scale mode to scale to fit the window
            scene.scaleMode = .aspectFill
            if UIDevice.current.orientation == .landscapeLeft || UIDevice.current.orientation == .landscapeRight {
                scene.size = CGSize(width: 1337, height: 750)
            } else {
                scene.size = CGSize(width: 750, height: 1337)
            }
            // Present the scene
            view.presentScene(scene)

            view.ignoresSiblingOrder = true

            view.showsFPS = true
            view.showsNodeCount = true
        }
    }

然后我以纵向启动应用程序,一切看起来都很好,然后我尝试旋转到横向并且大小根本没有改变(我添加了 print(size) 来更新场景中的功能)。然后我旋转回纵向,尺寸更改为在横向旋转回横向时应该改变的尺寸让我得到了纵向尺寸。

然后我重新启动了纵向旋转到横向右的应用程序,正如预期的那样,尺寸没有改变,然后我旋转到横向左,尺寸变为正确的值。

显然这些代码有效,但只有当我在更改场景后旋转场景时,尺寸才会真正改变。有没有办法立即进行此更改?或者在旋转时是否有更好的改变场景大小的方法?甚至有没有办法在不改变场景大小的情况下保持线的大小和相对于屏幕的位置?

我通过将代码更改为 :

来修复它
 var scene: FractalTreeScene!
    override func didRotate(from fromInterfaceOrientation: UIInterfaceOrientation) {

        if UIApplication.shared.statusBarOrientation.isLandscape {
            scene.size = CGSize(width: 1337, height: 750)
        } else {
            scene.size = CGSize(width: 750, height: 1337)
        }
        scene.drawTree()
    }
    override func viewDidLoad() {
        super.viewDidLoad()


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

            if UIApplication.shared.statusBarOrientation.isLandscape{
                scene.size = CGSize(width: 1337, height: 750)
            } else {
                scene.size = CGSize(width: 750, height: 1337)
            }
            // Present the scene
            view.presentScene(scene)

            view.ignoresSiblingOrder = true

            view.showsFPS = true
            view.showsNodeCount = true
        }
    }