Question

我正在开发一种船和石头相撞的游戏。游戏结束了当船碰撞石头时。我为船和石头的交叉实现了intersects（）方法。对于我收集的每枚硬币，我将分数增加+1。当船和石头碰撞时，我正在表演。执行segue并使用重启选项显示游戏分数。一切顺利，直到我重新开始游戏，当比赛重新开始时，有一些问题。以下是问题：

首先游戏很顺利，GameOver控制器会在碰撞发生时显示，但是当我选择重新启动时。

问题＃1当船撞到石头时，segue显示两次，然后再次重新启动

问题＃2当我第三次玩游戏时，它没有检测到交叉点并且它正在抛出错误

以下是错误的屏幕截图。

我可以第一次玩游戏，但是当我重新启动时我无法玩游戏。重启时游戏无法正常运行。

当使用segues时会发生这种情况，当我使用UIAlertView时游戏运行顺利。我想实现segues。

这是ViewController.swift

   func movingStone() {


    stone = UIImageView(image: UIImage(named: "stones.png"))
    stone.frame = CGRect(x: 0, y: 0, width: 5.0, height: 5.0)



    stone.bounds = CGRect(x:0, y:0, width: 5.0, height:5.0)
    stone.contentMode = .center;



    stone.layer.position = CGPoint(x: boat.center.x - 5, y: 0.0)
    stone.transform = CGAffineTransform(rotationAngle: 3.142)


    self.view.insertSubview(stone, aboveSubview: myView)



    UIView.animate(withDuration: 5, delay: 0, options: UIViewAnimationOptions.curveLinear, animations: { () -> Void in
        self.stone.frame.origin.y = self.view.bounds.height + self.stone.frame.height + 10
    }) { (success:Bool) -> Void in

        self.stone.removeFromSuperview()
        self.movingStone()

    }



}

    func movingFood() {

    food = UIImageView(image: UIImage(named: "fishcoin2.png"))
    food.frame = CGRect(x: 0, y: 0, width: 5.0, height: 5.0)
    var stone3 = leftS + arc4random() % rightS


    food.bounds = CGRect(x:0, y:0, width: 5.0, height: 5.0)
    food.contentMode = .center;
    food.layer.position = CGPoint(x: boat.center.x + 20, y: 0.0)
    food.transform = CGAffineTransform(rotationAngle: 3.142)


    self.view.insertSubview(food, aboveSubview: myView)


    UIView.animate(withDuration: 5, delay: 0, options: UIViewAnimationOptions.curveLinear, animations: { () -> Void in
        self.food.frame.origin.y = self.view.bounds.height + self.food.frame.height - 50
    }) { (success:Bool) -> Void in


        self.food.removeFromSuperview()
        self.movingFood()

    }



}

   func intersectsAt(tap2 : Timer) {
  if(boat.layer.presentation()?.frame.intersects((food.layer.presentation()?.frame)!))!{
        food.layer.isHidden = true

        coins = +1
        collectedCoin.text = "\(coins)"
        if coins > 100 {
            super.performSegue(withIdentifier: "GameOverIdentifier", sender: self)

        }
  }

    if(boat.layer.presentation()?.frame.intersects((stone.layer.presentation()?.frame)!))! {
        stopGame()


    }

}

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if segue.identifier == "GameOverIdentifier" {
        let gameOver = segue.destination as? GameOver
        gameOver?.coin = coins


    }
}

func stopGame() {

    tapTimer2.invalidate()

    boat.image = UIImage(named: "wreckboat.png")

    super.performSegue(withIdentifier: "GameOverIdentifier", sender: self)

}

这是GameOver.swift，它有一个重启按钮，实现了对前一个控制器的segue。

import UIKit

class GameOver: UIViewController {

var coin = Int()


var restart : ViewController!

@IBOutlet weak var go: UILabel!
override func viewDidLoad() {
    super.viewDidLoad()

    go.text =  "\(self.coin)"
    // Do any additional setup after loading the view.
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}


@IBAction func restartGame(_ sender: Any) {
    performSegue(withIdentifier: "goBack", sender: self)
}

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    if segue.identifier == "goBack" {
        if let back = segue.destination as? ViewController {

            back.startGame()
    }

    }
}



/*
// MARK: - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    // Get the new view controller using segue.destinationViewController.
    // Pass the selected object to the new view controller.
}
*/

}

我认为问题出在我使用touchesBegan和touchesMoved时。

任何建议都是有价值的。

谢谢。

Answer 1

从你的代码我可以看到你从ViewController.swift触发segue到GameOver.swift这是好的，这意味着你正在呈现GameOverViewController。问题是你不应该从GameOverViewController回到你的ViewController.swift，你必须解雇你的gameOverViewController

在重启功能中

@IBAction func restartGame(_ sender: Any) {
   self.dismiss(animated: true, completion: nil)
}

我能看到的第二个问题是你是否正在试图从准备segue中调用一个函数

您不应该将此segue用于ViewController

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "goBack" {
    if let back = segue.destination as? ViewController {
        // this is wrong
        back.startGame()
     }

  }
}

您可以使用unwindSegue，delegate，notification ...来触发startGame（）函数

使用segues实现游戏，重启时崩溃。迅速

1 个答案: