Question

在我的游戏中，每次在我的更新功能中发生某些条件时，我都会尝试将1添加到变量得分中。问题是每帧都会调用更新函数，所以当我的分数变量缓慢上升1时，我的分数变量就会不断攀升到数百。这是我的代码：

override func update(_ currentTime: TimeInterval) {

    if circleStart.frame.width >= self.frame.width && userTouched == false{
        hasTouchedEdge = true
    }

    if hasTouchedEdge == true && userTouched == false {
        scaleSpeed -= 0.2  
    }

    if scaleSpeed <= 1.0 && userTouched == false { 
        scaleSpeed += 0.3
        hasTouchedEdge = false   
    }

    if userTouched == false{ 
        scaleSpeed += 0.1
        circleStart.setScale(CGFloat(scaleSpeed))
        circleLength = circleStart.frame.width
        acceptableBound1 = outerCircle.frame.width
        acceptableBound2 = outerCircle.frame.width - 100
    }

    if userTouched == true && circleLength > acceptableBound2 && circleLength < acceptableBound1{ 
        print("worked")
        isCorrect = true
    }

    if userTouched == true && circleLength > acceptableBound1 {
        gameOverLabel.isHidden = false
        playAgain.isHidden = false
        playAgain.run(fadingTapIn)   
    }

    if userTouched == true && circleLength < acceptableBound2{ 
        gameOverLabel.isHidden = false
        playAgain.isHidden = false
        playAgain.run(fadingTapIn)    
    }

    if isCorrect == true {  
        score += 1  
    }

    scoreLabel.text = String(score)   
}

我需要做什么或添加什么才能让我的得分变量按上述方式工作？

Answer 1

简易解决方案：在isCorrect = false之后添加score += 1。

好的解决方案：尝试删除更新中的大部分代码。在大多数情况下，更新被称为每秒近60次，并且由于某些原因，它不是进行更改的最佳位置。

尝试使用

override func touchesBegan(touches: Set<UITouch>,with event: UIEvent?) {
    for touch in touches {
        let location = touch.location
        if (someNode.contains(location)) {
            //This if statement isn't needed, but an example of how you can determine if a node was pressed
            someFunctionToDoStuff(location)
        }
    }
}

或

override func touchesBegan(touches: Set<UITouch>,with event: UIEvent?) {
    let touch = touches.first 
    let location = touch.location
    if (someNode.contains(location)) {
        //This if statement isn't needed, but an example of how you can determine if a node was pressed
        someFunctionToDoStuff(location)
    }
}

第一个选项可能会多次运行，具体取决于确定的触摸次数。第二种选择只会注意它注意到的第一次触摸并忽略其余部分。

您可以根据需要定义此功能，只需确保在需要时获取触摸位置：

func someFunctionToDoStuff(_ location: CGPoint) {
    score += 1
    // Then maybe move a node to where the press was located
    ball.position = location
}

您可以将touchesBegan，touchesMoved和touchesEnded用作函数。

查看Ray Wenderlich的SpriteKit教程，你将学到很多东西！ https://www.raywenderlich.com/145318/spritekit-swift-3-tutorial-beginners

Sprite-Kit Variable不会停止添加

1 个答案: