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我在不同的关卡创建了一款游戏。如果用户达到特定的gameScore,alertButton应该弹出(已经工作),但只要用户切换场景,按钮应该消失。用我的代码,按钮不会消失。我如何让图像只出现一次?如何添加转换后消失的图像?
这里是我的代码:
var alertButton = SKSpriteNode.init(imageNamed: "AlertButton")
var totalGameScore = 0
class Game: SKScene {
override func didMove(to view: SKView) {
if totalGameScore > 50 { //alert button appears and should disappear after scene changes
self.addChild(alertButton)
}
if totalGameScore > 100 { //alert button appears again and should disappear after scene changes
self.addChild(alertButton)
}
}
}