在 Swift 中触摸 SKSpriteNode 时无法激活代码

Question

当我按下精灵时，我试图让事情发生，但我在尝试正确识别触摸时遇到了问题。

class GameScene: SKScene {
var optDiceSprite = SKSpriteNode()
override func didMoveToView(view: SKView) {
    createOptSprite()
}
override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
    for touch in touches {
        let location = touch.locationInNode(self)
        let node = nodeAtPoint(location)
        print("NAME OF NODE: (node.name)")
        if (node == optDiceSprite) {
            print("WHY U NO WORKY!")
        }
    }
}
func createOptSprite() {
        optDiceSprite = SKSpriteNode(imageNamed: "sound_off")
        optDiceSprite.userInteractionEnabled = true
        optDiceSprite.position = CGPoint(x: CGRectGetMaxX(self.frame) - 30, y: CGRectGetMinY(self.frame) + 30)
        optDiceSprite.setScale(0.5)
        addChild(optDiceSprite)
}

这并不是打印声明的开始。我全局声明sprite，在touchesBegan方法中运行此代码之前创建并定位它。

我想做的是，每次用户切换到一个声音图标精灵时，它都会打开和关闭声音效果

感谢您的帮助！

Answer 1

请改用

   class GameScene: SKScene {
        var optDiceSprite = SKSpriteNode()
        override func didMoveToView(view: SKView) {
        createOptSprite()
   }
    override func touchesBegan(touches: Set<UITouch>, withEvent event: UIEvent?) {
        for touch in touches {
           let location = touch.locationInNode(self)
           let node = nodeAtPoint(location)
           print("NAME OF NODE: (node.name)")
           if (node == optDiceSprite) {
                print("WHY U NO WORKY!")
              }
          }
     }
  func createOptSprite() {
    optDiceSprite = SKSpriteNode(imageNamed: "sound_off")
    optDiceSprite.setScale(0.5)
    optDiceSprite.position = CGPoint(x: CGRectGetMaxX(self.frame) - 30, y: CGRectGetMinY(self.frame) + 30)
    addChild(optDiceSprite)
  }