swift - 如何停止屏幕上的节点被触摸？ SpriteKit

Question

我正在创建一个游戏，屏幕上有一个节点，当玩家触摸屏幕时，该节点就可以工作，但我只想当玩家点击该节点时，然后 Action 就会发生。

Here is the code of what is going on.

var ballNode = SKSpriteNode(imageNamed: "balls.png")

var touchLocation = CGPoint()

override func didMove(to view: SKView) {

ballNode.size = CGSize(width: 100, height: 100)
ballNode.position = CGPoint(x: self.size.width*0.5, y:  self.size.height*0.9)

self.addChild(ballNode)

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

let touch: UITouch = touches.first!
let positionInScene = touch.location(in: self)
let touchedNode = self.atPoint(positionInScene)

touchLocation = touch.location(in: self)

let moveDown = SKAction.moveTo(y: self.size.height*0.1, duration: 0.3)
let moveUp = SKAction.moveTo(y: self.size.height*0.9, duration: 0.3)
let moveSequence = SKAction.sequence([moveDown, moveUp])
ballNode.run(moveSequence)
let pointOfTouch = touch.location(in: self)
ballNode.contains(pointOfTouch)

Answer 1

可以这样完成。

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

    if let touch = touches.first as UITouch! {

        let touchLocation = touch.location(in: self)
        if ballNode.frame.contains(touchLocation) {

            let moveDown = SKAction.moveTo(y: self.size.height*0.1, duration: 0.3)
            //let spin = SKAction.repeatForever(SKAction.rotate(byAngle: CGFloat(M_PI), duration: 1))
            //let spin = SKAction.repeat(SKAction.rotate(byAngle: CGFloat(M_PI), duration: 1), count: 3)
            let spin = SKAction.rotate(byAngle: CGFloat(M_PI), duration: 1)
            let moveUp = SKAction.moveTo(y: self.size.height*0.9, duration: 0.3)
            let moveSequence = SKAction.sequence([moveDown, spin , moveUp])
            ballNode.run(moveSequence)
        }
    }
}

我添加了一行用于旋转 Action ，有 2 行注释行用于更多旋转。只需选择最适合您的即可