UIButton接受1个手指和2个手指点击事件

Question

我正在跟踪游戏分数，游戏分数增加/减少25。

我正在使用UIButton来显示按钮标签中的分数，使用1手指的轻击手​​势将分数增加25，然后用2个手指轻击手势将分数减少25

我找不到更加模块化的方式来编写这段代码，唯一可以重复使用每个按钮的功能是：

func setButtonTitleAndIncrement(index: Int, button: UIButton) -> Int {
    var index = index
    index += 25
    button.setTitle(String(index), for: .normal)
    return index
}

func setButtonTitleAndDecrement(index: Int, button: UIButton) -> Int {
    var index = index
    index -= 25
    button.setTitle(String(index), for: .normal)
    return index
}

但是对于每个按钮，我必须使用相同的代码，除非指定特定的按钮和方法，但我无法找到解决方法。 我希望至少采用一般index和button 。有什么想法吗？

var index1 = 0
var index2 = 0

override func viewDidLoad() {
    super.viewDidLoad()
    let oneFingerTapButtonTeam1 = UITapGestureRecognizer(target: self, action: #selector(incrementScoreTeam1))
    oneFingerTapButtonTeam1.numberOfTouchesRequired = 1
    buttonTeam1.addGestureRecognizer(oneFingerTapButtonTeam1)

    let twoFingerTapButtonTeam1 = UITapGestureRecognizer(target: self, action: #selector(decrementScoreTeam1))
    twoFingerTapButtonTeam1.numberOfTouchesRequired = 2
    buttonTeam1.addGestureRecognizer(twoFingerTapButtonTeam1)

    let oneFingerTapButtonTeam2 = UITapGestureRecognizer(target: self, action: #selector(incrementScoreTeam2))
    oneFingerTapButtonTeam2.numberOfTouchesRequired = 1
    buttonTeam2.addGestureRecognizer(oneFingerTapButtonTeam2)

    let twoFingerTapButtonTeam2 = UITapGestureRecognizer(target: self, action: #selector(decrementScoreTeam2))
    twoFingerTapButtonTeam2.numberOfTouchesRequired = 2
    buttonTeam2.addGestureRecognizer(twoFingerTapButtonTeam2)
}

func incrementScoreTeam1() {
    print("1 tapped")
    let ind = setButtonTitleAndIncrement(index: index1, button: buttonTeam1)
    index1 = ind
}

func incrementScoreTeam2() {
    print("2 tapped")
    let ind = setButtonTitleAndIncrement(index: index2, button: buttonTeam2)
    index2 = ind
}

func decrementScoreTeam1() {
    print("1 Two tapped")
    let ind = setButtonTitleAndDecrement(index: index1, button: buttonTeam1)
    index1 = ind
}

func decrementScoreTeam2() {
    print("2 Two tapped")
    let ind = setButtonTitleAndDecrement(index: index2, button: buttonTeam2)
    index2 = ind
}