如果玩家觸摸屏幕，如何檢查每一幀？

Question

如何檢查播放器是否每幀都在觸摸屏幕？ 我想要的東西類似於您在“幾何破折號”游戲中不斷觸摸屏幕時，如果您觸摸地面，則會不斷跳躍。 我嘗試了這個，但是我沒有工作：

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

與touchDown函數相同：

func touchDown(atPoint pos : CGPoint) {
        isTouching = true
    }

Answer 1

嘗試以下代碼：

var isTouching = false

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

override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
    isTouching = false
}

Answer 2

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

override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
    isTouching = false
}

然后您可以檢查更新循環

if isTouching == true { 
   do something 
}
else {
   do something else 
}