如何在我的游戏中保存用户的等级？

Posted 2023-05-07

【中文标题】如何在我的游戏中保存用户的等级？

【英文标题】：How do I save the user's level on my game?

【发布时间】：2019-01-03 16:43:08

【问题描述】：

我有一个我用 swift 编码的迷宫游戏，它不保存关卡。目前，当用户关闭应用程序时，没有保存任何内容，用户必须重新从关卡 1 开始玩游戏。我对每个级别都有不同的 .swift 和 .sks 文件，所以我不确定如何跨类/文件保存级别数据。

我尝试使用 UserDefaults，但是，我不确定如何将“文件路径”保存到我的关卡。我知道我需要在我的 AppDelegate 中实现一些东西（使用 applicationWillTerminate 或 applicationDidEnterBackground 函数），但是，我不确定我需要在场景中放入什么代码（如果有的话）来保存这些数据。我以前没有保存过用户数据，因此我们将不胜感激！

import SpriteKit
import GameplayKit
import CoreMotion
import SceneKit
import UIKit

class GameScene: SKScene, SKPhysicsContactDelegate 

let gameScene = SKScene()

var button: SKNode! = nil
var playerSprite = SKSpriteNode()
var nextNode = SKSpriteNode()

lazy var countdownLabel: SKLabelNode = 
    var label = SKLabelNode(fontNamed: "Helvetica")
    label.horizontalAlignmentMode = .center
    label.verticalAlignmentMode = .center
    label.color = UIColor.red
    label.text = "\(counter)"
    return label
()

var counter = 30
var counterTimer = Timer()
var counterStartValue = 30

let motionManager = CMMotionManager()

override func didMove(to view: SKView) 

    self.scene?.scaleMode = SKSceneScaleMode.aspectFit

    button = SKSpriteNode(imageNamed: "redoButton")
    button.position = CGPoint(x: 350, y: 585);
    self.addChild(button)

    countdownLabel.position = CGPoint(x: 0.5, y: 0.5)
    addChild(countdownLabel)

    counter = counterStartValue
    runTimer()

    self.physicsWorld.contactDelegate = self

    playerSprite = self.childNode(withName: "playerSprite") as! SKSpriteNode
    nextNode = self.childNode(withName: "nextNode") as! SKSpriteNode

    motionManager.startAccelerometerUpdates()
    motionManager.accelerometerUpdateInterval = 0.1
    motionManager.startAccelerometerUpdates(to: OperationQueue.main) 
        (data,error) in

        self.physicsWorld.gravity = CGVector(dx: CGFloat((data?.acceleration.x)!) * 10, dy: CGFloat((data?.acceleration.y)!) * 10)
    


func didBegin(_ contact: SKPhysicsContact) 
    let bodyA = contact.bodyA
    let bodyB = contact.bodyB

    if bodyA.categoryBitMask == 1 && bodyB.categoryBitMask == 2 || bodyA.categoryBitMask == 2 && bodyB.categoryBitMask == 1

        playerSprite.removeFromParent()
        nextNode.removeFromParent()
        self.removeFromParent()
        let transition = SKTransition.fade(withDuration: 0.5)
        let gameScene2 = GameScene2(fileNamed: "GameScene2")
        gameScene2!.scaleMode = SKSceneScaleMode.aspectFit
        self.view?.presentScene(gameScene2!, transition: transition)

    



func runTimer() 
    counterTimer = Timer.scheduledTimer(timeInterval: 1.0, target: self, selector: #selector(decrementCounter), userInfo: nil, repeats: true)
    


@objc func decrementCounter() 
    counter -= 1
    countdownLabel.text = "\(counter)"

    if countdownLabel.text! < "0" as String 
        countdownLabel.text = "Game Over"
        playerSprite.removeFromParent()
        nextNode.removeFromParent()


    


override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) 

    if let touch = touches.first 
        if touch.view == self.button 
            print("Yay!!!")

         else 

            playerSprite.isHidden = false
            nextNode.isHidden = false

            let gameScene = GameScene(fileNamed: "GameScene")
            gameScene!.scaleMode = SKSceneScaleMode.aspectFit
            let transition = SKTransition.fade(withDuration: 0.5)
            self.view?.presentScene(gameScene!, transition: transition)
        

    


override func update(_ currentTime: TimeInterval) 
    // Called before each frame is rendered

【问题讨论】：

需要一些代码来了解一切是如何实现的，然后任何人甚至可以开始回答您的问题

我刚刚编辑了我的问题并为我的一个游戏场景（第一个）添加了代码。游戏场景的所有代码实际上是相同的。 :)

【参考方案1】：

用字符串保存

UserDefaults.standard.set(StateOftheGame, forKey: "levelPass")

然后在应用程序委托上检查用户是否在游戏开始时'passLevel' 在

didFinishLaunchingWithOptions -> 添加函数 passLevel()

func passLevel() 
        if UserDefaults.standard.value(forKey: "levelPass") != nil
        
            let VC = UIStoryboard(name: "Main", bundle: Bundle.main).instantiateViewController(withIdentifier: "YOURVIEWCONTROLLERWITHSAVESTATE")
            let navVC = UINavigationController(rootViewController: VC)
            let share = UIApplication.shared.delegate as? AppDelegate
            share?.window?.rootViewController = navVC
            share?.window?.makeKeyAndVisible()
        


    

【讨论】：

非常感谢！虽然我如何放置“yourviewcontrollerwithsavestate”？喜欢“myviewcontroller.stateofthegame”？

不客气，只需像他的名字一样设置它示例：我有这个 Viewcontroller class ConductorPrincipalViewController: UIViewController, CLLocationManagerDelegate, MKMapViewDelegate 所以我这样设置（withIdentifier: "ConductorPrincipalViewController")

每次你设置forKey: "levelPass" 到一个不同于'NIL' 的值时都会被调用你也可以删除和同步levelPass ////// //UserDefaults.standard.removeObject(forKey: "levelPass") UserDefaults.standard.synchronize()

请勿使用value(forKey:) 读取关卡。使用string(forKey:) 读取String。