Question

如何在我的功能中5秒后删除我的SKSpriteNode。我尝试使用名为func的NSTimer删除我的BonusSprite 但是5秒后我的应用程序崩溃了：

let timerApparitionBonus = NSTimer.scheduledTimerWithTimeInterval(13, target: self, selector: Selector("ApparitionBonus"), userInfo: nil, repeats: true)

    }

    func ApparitionBonus() {

        var BonusApparitionX = UInt32(self.frame.size.width)
        var BonusApparitionY = UInt32(self.frame.size.height)

        BonusApparitionX = arc4random() % BonusApparitionX
        BonusApparitionY = arc4random() % BonusApparitionY
        BonusSprite.position = CGPointMake(CGFloat(BonusApparitionX),CGFloat(BonusApparitionY))
        BonusSprite.setScale(0.8)
        self.addChild(BonusSprite)
    }

编辑：

这是我DidMoveToView的代码，用于删除我的精灵。

override func didMoveToView(view: SKView) {

    physicsWorld.contactDelegate = self

    //BackGround

    self.scene?.backgroundColor = UIColor.blackColor()
    self.addChild(SKEmitterNode(fileNamed: "MyParticle")!)
    self.scene?.size = CGSize(width: 640, height: 1136)

    //Placement du Vaisseau :

    Vaisseau.setScale(2)
    Vaisseau.position = CGPointMake(self.frame.size.width / 2, self.frame.size.height / 2)
    Vaisseau.physicsBody = SKPhysicsBody(rectangleOfSize: Vaisseau.size)
    Vaisseau.physicsBody?.affectedByGravity = false
    Vaisseau.physicsBody?.categoryBitMask = PhysicsCategories.Vaisseau
    Vaisseau.physicsBody?.contactTestBitMask = PhysicsCategories.Meteorites
    Vaisseau.physicsBody?.contactTestBitMask = PhysicsCategories.Bonus
    Vaisseau.physicsBody?.dynamic = false
    self.addChild(Vaisseau)

    //Timer créer enemis

    CreationEnemisTimer = NSTimer.scheduledTimerWithTimeInterval(1, target: self, selector: Selector("CreationMeteorites"), userInfo: nil, repeats: true)

    //Score

    timerScore = NSTimer.scheduledTimerWithTimeInterval(0.7, target: self, selector: Selector("ScoreUpper"), userInfo: nil, repeats: true)
    ScoreLabel = UILabel(frame: CGRect(x: 0, y: 0, width: self.frame.size.width / 3, height: 20))
    ScoreLabel.center = CGPoint(x : self.frame.size.width / 2,y : self.frame.size.height / 4)
    ScoreLabel.text = "Score : \(Score)"
    ScoreLabel.backgroundColor = UIColor(red: 0.1, green: 0.1, blue: 0.1, alpha: 0.3)
    ScoreLabel.textColor = UIColor.whiteColor()
    self.view?.addSubview(ScoreLabel)

    //Aparition des Bonus (timer)

    let myFunction = SKAction.runBlock({self.ApparitionBonus()})
    let wait = SKAction.waitForDuration(5)
    let remove = SKAction.runBlock({self.removeBonus()})

    self.runAction(SKAction.sequence([myFunction, wait, remove]))
}

func ApparitionBonus() {

    var BonusApparitionX = UInt32(self.frame.size.width)
    var BonusApparitionY = UInt32(self.frame.size.height)

    BonusApparitionX = arc4random() % BonusApparitionX
    BonusApparitionY = arc4random() % BonusApparitionY

    BonusSprite.position = CGPointMake(CGFloat(BonusApparitionX),CGFloat(BonusApparitionY))
    BonusSprite.setScale(0.8)

    BonusSprite.physicsBody?.categoryBitMask = PhysicsCategories.Bonus
    BonusSprite.physicsBody?.contactTestBitMask = PhysicsCategories.Vaisseau
}

func removeBonus() {

    BonusSprite.removeFromParent()
}

Answer 1

试试这个

编辑：意识到它不会删除精灵，这会起作用。

class GameScene: SKScene {
override func didMoveToView(view: SKView) {
      let myFunction = SKAction.runBlock({()in self.ApparitionBonus()})
      let wait = SKAction.waitForDuration(5)
      let remove = SKAction.runBlock({() in self.removeSprite()})
      self.runAction(SKAction.sequence([myFunction, wait, remove]))
    }
    func ApparitionBonus() {
       self.addChild(bonusSprite)
    }
    func removeSprite() {
       bonusSprite.removeFromParent()
    }
}

Answer 2

//如果我们用函数创建一个SKSpriteNode就像那样！

func gooseWarnningLabelShow () {
    var spriteNodelabel        = SKSpriteNode(imageNamed: "labelBack2")
    spriteNodelabel.position   = CGPoint(x:CGRectGetMidX(frame), y: frame.size.height*0.90)
    spriteNodelabel.size       = CGSizeMake(frame.size.width*0.70, frame.size.height*0.06)
    spriteNodelabel.alpha      = 0.2
    spriteNodelabel.zPosition  = 21.0
    self.addChild(spriteNodelabel)
    spriteNodelabel.runAction(
        SKAction.sequence([
            SKAction.waitForDuration(5.0),
            SKAction.removeFromParent()
            ])
    )
}

使用此功能创建SKSpriteNode！在该函数中，我们有一个SKAction，它在5秒延迟后执行并删除SKSpriteNode！

5秒后删除SKSpriteNode

2 个答案: