看法ispaused=true,skscene不工作

问题是,即使场景暂停,代码仍然可以运行。是的,你暂停了这个场景,是的,视觉效果确实在运行。。。但isPaused行之后的视觉效果也会运行并重置您刚刚更改的视觉效果。

class GameScene: SKScene {

    private var test: SKSpriteNode!
    private var test2: SKSpriteNode!
    private var test3: SKSpriteNode!

    override func didMove(to view: SKView) {

        backgroundColor = .clear

        test = SKSpriteNode(color: .blue, size: CGSize(width: 200, height: 200))
        test.position = CGPoint(x: 0, y: 350)
        addChild(test)

        test2 = SKSpriteNode(color: .red, size: CGSize(width: 200, height: 200))
        test2.position = CGPoint(x: 0, y: 0)
        test2.alpha = 0
        addChild(test2)

        test3 = SKSpriteNode(color: .yellow, size: CGSize(width: 200, height: 200))
        test3.position = CGPoint(x: 0, y: -350)
        addChild(test3)

        let scaleDown = SKAction.scale(to: 0.1, duration: 1.0)
        let scaleUp = SKAction.scale(to: 1.0, duration: 1.0)
        let sequence = SKAction.sequence([scaleDown, scaleUp])
        let repeater = SKAction.repeatForever(sequence)
        test3.run(repeater)
    }

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

        if let touch = touches.first as UITouch! {

            let touchLocation = touch.location(in: self)

            if test.contains(touchLocation) {
                print("pausing")
                self.test2.alpha = 1
                self.test.alpha = 0
                self.isPaused = true
            }

            if test2.contains(touchLocation) {
                print("unpausing")
                self.test2.alpha = 0
                self.test.alpha = 1
                self.isPaused = false
            }
        }
    }
}