swift - 类型 '[SKNode ]' 的值没有成员 'name'

Question

我的代码有问题。请在第 5 行帮助我!错误提示:

value of type '[SKNode ]'has no member 'name'

这是我收到错误的函数:

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

    for touch: AnyObject in touches{
        let pointOfTouch = touch.location(in: self)
        let nodeITapped = self.nodes(at: pointOfTouch)

        if nodeITapped.name == "startButton"{

            let sceneToMoveTo = GameScene(size: self.size)
            sceneToMoveTo.scaleMode = self.scaleMode
            let myTransition = SKTransition.fade(withDuration: 0.5)
            self.view!.presentScene(sceneToMoveTo, transition: myTransition)

        }

我在 if nodeITapped.name == "startButton"

线上遇到错误

Answer 1

self.nodes(at: pointOfTouch) 返回一个节点数组，因此您应该循环遍历该数组检查每个节点。另外，在找到该节点后，您应该从函数中返回:

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

    for touch in touches {
        let pointOfTouch = touch.location(in: self)
        for nodeITapped in self.nodes(at: pointOfTouch) {

            if nodeITapped.name == "startButton" {

                let sceneToMoveTo = GameScene(size: self.size)
                sceneToMoveTo.scaleMode = self.scaleMode
                let myTransition = SKTransition.fade(withDuration: 0.5)
                self.view!.presentScene(sceneToMoveTo, transition: myTransition)

                // found the one I was looking for, so don't continue
                return
            }