swift - 试图让我的重启按钮保持空闲 2 - 3 秒

Question

我制作了一款类似于 Flappy Bird 的游戏。我已经设置了一个函数，以便在英雄死亡时调用 restartScene。触摸后会重新开始游戏，这样用户就可以继续玩了。

我的问题是，是否可以在用户点击重启之前延迟 2-3 秒？

func restartScene(){

    self.removeAllChildren()
    self.removeAllActions()
    died = false
    gameStarted = false
    score = 0
    createScene()

}

 override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
    if gameStarted == false{

        gameStarted = true

  for touch in touches{
        let location = touch.location(in: self)

        if died == true{


            restartScene()
        }

    }
}

Answer 1

在 createButton 的末尾使用 SKAction 来执行延迟:

场景 1，您正在使用 SKScene 处理所有触摸事件(这是您必须做的事情，因为 restartButton 是一个 SKSpriteNode):

let enable = SKAction.run({[unowned self] in self.restartButton.isUserInteractionEnabled = false})

restartButton.isUserInteractionEnabled = true //This actually disables the button because the touch handler will not be called by scene, but instead the individual button. 
//The individual button will have no touch code associated with it, so nothing will happen

restartButton.run(SKAction.sequence([SKAction.wait(duration:2),enable]), withKey:"waitingToEnable")

场景 2，您将 restartButton 用作自定义类:

let enable = SKAction.run({[unowned self] in self.restartButton.isUserInteractionEnabled = true})

restartButton.isUserInteractionEnabled = false //This disables the button because the touch handler will not be called by individual button, and instead will go to whatever is touch enabled under it. 
restartButton.run(SKAction.sequence([SKAction.wait(duration:2),enable]), withKey:"waitingToEnable")

在您的特定情况下，我会这样写:

func createButton(){

    restartButton = SKSpriteNode(imageNamed: "restart")
    restartButton.position = CGPoint(x: self.frame.width / 2, y: self.frame.height / 2)
    restartButton.zPosition = 10
    restartButton.setScale(1.2)
    restartButton.name = "Restart"
    restartButton.setScale(1.5)
    self.addChild(restartButton)

    let enable = SKAction.run({[unowned self] in self.restartButton.isUserInteractionEnabled = false})

    restartButton.isUserInteractionEnabled = true //This actually disables the button because the touch handler will not be called by scene, but instead the individual button. 
    //The individual button will have no touch code associated with it, so nothing will happen

    let waitAndEnable = SKAction.sequence([SKAction.wait(duration:2),enable])
    let fadeIn = SKAction.fadeIn(withDuration: 1.5)
    let runConcurrently = SKAction.group([waitAndEnable,fadeIn])
    restartButton.run(runConcurrently)

    highScoreLabel.text = "High Score: \(UserDefaults().integer(forKey: "HIGHSCORE"))"
    highScoreLabel.fontColor = UIColor.white
    highScoreLabel.fontSize = 20
    highScoreLabel.position = CGPoint(x: 80, y: 20)
    highScoreLabel.zPosition = 6

    livesLabel.position = CGPoint(x: frame.size.width / 5.4, y: 30)
    livesLabel.text = "Lives: \(lives)"
    livesLabel.zPosition = 5
    livesLabel.fontSize = 20
    livesLabel.fontColor = UIColor.black
    self.addChild(livesLabel)
    livesLabel.zPosition = 10
}

看起来您没有正确处理 touchesBegan。您已将其设置为用户触摸场景中的任何位置，游戏将重新开始。

您需要针对特定​​节点以确保发生这种情况。

我已经添加了 touchesBegan 更改以满足您的需求。您必须根据案例陈述中的内容命名您的游戏场景才能使其正常工作。

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

  for touch in touches{
    let location = touch.location(in: self)
    let node = nodeAtPoint(location)
    switch(node.name)
    {
      case "Restart":
        if died = true{
          restartScene()
        }
      case "GameScene": //maybe we want to make this a button?
        gameStarted = true //who cares about a branch statement
      default:()
    }

  }
}