如何在我的应用程序上创建另一个屏幕 [英] How to create another screen on my app

问题描述

所以我想知道，使用默认的游戏"Xcode 配置.你会如何制作另一个 SKScene?比如说我想要一个菜单​​什么的?

So I was wondering, with the default "game" Xcode configuration. How would you make another SKScene? Like lets say I wanted to have a menu or something?

基本上我将如何创建另一个名为title.swift"的文档，然后以编程方式在它们之间来回切换?这样我就可以从菜单转到游戏场景而不会弄乱我的代码?

Basically how would I create another document titled "title.swift" and then programmatically be able to switch back and forth through them? That way I could go from a menu to the game scene without muddling up my code?

我无法在重新制作的代码中找到它实际上告诉 swift 显示使用游戏"配置预先制作的游戏场景的位置.

I cant find where in the remade code code it actually tell swift to display the game scene that was premade with the "game" configuration.

我想我创建了一个新类并让它继承了 SKScene.

I figure I make a new class and have it inherit SKScene.

推荐答案

您可以通过继承 SKScene 或其任何您创建的子类来创建新场景.可以通过调用SKView方法presetScene(scene:SKScene)来切换场景.这是我在上一场比赛中实现它的方式:

You can create new scenes by subclassing SKScene or any of its subclasses you create. You can switch between scenes by calling the SKView method presetScene(scene:SKScene). This is how I implemented it in my last game:

//handles all scene transitions
protocol SceneTransitionDelegate {
     //this passes the scene as a class (not object)
     func transitionToScene(sceneClass:Scene.Type)
}

//make sure all you scenes are a subclass of this (so they inherit sceneDelegate):
class Scene: SKScene { //Scene inherits from SKScene
    var sceneDelegate:SceneTransitionDelegate!
    required override init(size: CGSize) {
        super.init(size: size)
    }
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
}

class GameScene:Scene {
    //call this method within the scene to return to the main menu
    func gameOver() {
        sceneDelegate.transitionToScene(MainMenuScene.self)
    }
}

class MainMenuScene: Scene {
    //call this method to transition to a game scene
    func newGame() {
        sceneDelegate.transitionToScene(GameScene.self)
    }
}

//the VC that presents your scenes 
class GameViewController: UIViewController, SceneTransitionDelegate {

    var skView:SKView { return view as! SKView }

    override func viewDidLoad() {
        super.viewDidLoad()

        //load first scene (e.g. MainMenu)
        transitionToScene(MainMenuScene.self)
    }

    //SceneTransitionDelegate method
    func transitionToScene(sceneClass:Scene.Type) {
        let scene = sceneClass(size: skView.bounds.size)
        scene.scaleMode = .AspectFill
        scene.sceneDelegate = self
        skView.presentScene(scene)
    }
}

您可以通过向 SceneTransitionDelegate 添加自定义过渡方法来改进这一点.

You can improve this by adding a method for custom transitions to the SceneTransitionDelegate.

protocol SceneTransitionDelegate {
    func transitionToScene(sceneClass:Scene.Type)
    func transitionToScene(sceneClass:Scene.Type, transitionAnimation:SKTransition)
}

并将新方法添加到视图控制器，如下所示:

and add the new method to the view controller like this:

 func transitionToScene(sceneClass: Scene.Type, transitionAnimation: SKTransition) {
    let scene = sceneClass(size: skView.bounds.size)
    scene.scaleMode = .AspectFill
    scene.sceneDelegate = self
    skView.presentScene(scene, transition: transitionAnimation)
}

并从这样的场景中调用它:

and call it from within scenes like this:

 func gameOverAnimated() {
    let transition = SKTransition.crossFadeWithDuration(0.5)
    sceneDelegate.transitionToScene(MainMenuScene.self, transitionAnimation: transition)
}

我在此处制作了一个快速演示 xcode 项目.

I made a quick demo xcode project here.

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