ios - 如何在单个 View 中每秒将值增加一个数字 (cps)？

Question

我一直在查看以前的问题，但是，它们似乎已经过时或不适用于我的情况。在我的应用程序中，我想每秒通过另一个变量 (cps) 增加一个变量 (money)。当我尝试执行永久循环或使用计时器时，我要么出错，要么什么也没有发生。

class SecondViewController: UIViewController {
    var money = 0
    var cost = 20
    var clicks = 1
    var cost2 = 50
    var CPS: Int = 0
    var truth = true

    @IBOutlet weak var costOutlet2: UILabel!
    @IBOutlet weak var errorLabel: UILabel!
    @IBOutlet weak var cpsButtonOutlet: UILabel!
    @IBOutlet weak var clicksButtonOutlet: UIButton!
    @IBOutlet weak var clicksOutlet: UILabel!
    @IBOutlet weak var cpsOutlet: UILabel!
    @IBOutlet weak var scoreOutlet2: UILabel!
    @IBOutlet weak var costOutlet: UILabel!
    @IBOutlet weak var cpsBtnOutlet: UIButton!

    override func prepare(for backsegue: UIStoryboardSegue, sender: Any?) {
        let controller = backsegue.destination as! ViewController
        controller.money = Int(scoreOutlet2.text!)!
        controller.clicks = Int(clicksOutlet.text!)!
        controller.CPS = Int(cpsOutlet.text!)!
        controller.cost = Int(cost)
        controller.cost2 = Int(cost2)
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        costOutlet2.isHidden = true
        costOutlet.isHidden = true
        costOutlet.text = "\(cost)"
        scoreOutlet2.text = "\(money)"
        clicksOutlet.text = "\(clicks)"
        cpsOutlet.text = "\(CPS)"
        errorLabel.isHidden = true
        clicksButtonOutlet.setTitle("$\(cost): +1 Clicks", for: .normal)
        cpsBtnOutlet.setTitle("$\(cost2): +1 CPS", for: . normal)
    }

    override func viewDidAppear(_ animated: Bool) {
        scoreOutlet2.text = "\(money)"
        clicksOutlet.text = "\(clicks)"
    }

    @IBAction func addClicks(_ sender: Any) {
        if (money >= cost) {
            money = money - cost
            scoreOutlet2.text = "\(money)"
            cost = cost * 3
            clicks = clicks + 1
            clicksOutlet.text = "\(clicks)"
            (sender as AnyObject).setTitle("$\(cost): +1 Clicks", for:[])
            print(cost)
        } else {
            insufficent()
        }
    }

    @IBAction func addCps(_ sender: Any) {
        if (money >= cost2) {
            money = money - cost2
            scoreOutlet2.text = "\(money)"
            cost2 = cost2 * 3
            CPS = CPS + 1
            cpsOutlet.text = "\(CPS)"
            (sender as AnyObject).setTitle("$\(cost2): +1 CPS", for:[])
        } else {
            insufficent()
        }
    }

    func insufficent() {
        errorLabel.isHidden = false
        errorLabel.text = "Insufficent Funds"
        DispatchQueue.main.asyncAfter(deadline: .now() + 3.5) {
            self.errorLabel.isHidden = true
        }
    }
}

我目前正在尝试在 Swift 4 Xcode 10 上制作唱首歌游戏，我可以在购买时增加 CPS，但是，购买时金钱的值(value)并不会每秒都增加。无论“CPS”的值是多少，我怎样才能使变量“money”增加。

Answer 1

尝试使用您的 viewController 中的代码

/...
override func viewDidLoad() {
    super.viewDidLoad()
    increaseMoneyEverySecond()
}

private func increaseMoneyEverySecond() {
    money = money + CPS
    DispatchQueue.main.asyncAfter(deadline: .now()+1) { [weak self] in
        if let strongSelf = self {
            strongSelf.increaseMoneyEverySecond()
        }
    }
}
/...