Arrays 从两个阵列中删除匹配图像

我正在制作一个快照游戏，我试图从一个数组中删除两个图像，这样当第一张随机牌和第二张随机牌匹配时，它们就不会再次出现。我有什么办法可以做到这一点吗？谢谢

var cardNamesArray: [String] = ["sad", "sleepy","angry"]

var cardNamesArray2: [String] = ["triste", "cansado","enfadado"]

为第一个阵列生成随机卡

   firstRandomNumber = Int (arc4random_uniform(3))
   let firstCardString:String = self.cardNamesArray[firstRandomNumber]
   self.FirstCardImageView.image = UIImage(named: firstCardString)

为第二个阵列生成随机卡

   SecondRandomNumber = Int (arc4random_uniform(3))
   let SecondCardString:String = self.cardNamesArray2[SecondRandomNumber]
   self.SecondCardImageView.image = UIImage(named: SecondCardString)

如果他们比赛，球员得1分

        @IBAction func SnapButtonTapped(sender: UIButton) {

        if firstRandomNumber == SecondRandomNumber {

        print("index match")

        self.playerScore += 1
        self.playerScoreLabel.text = String(self.playerScore

    }

---

为什么不尝试从阵列本身删除图像呢。一旦随机数匹配，您就可以这样做

if firstRandomNumber == SecondRandomNumber {

    print("index match") 
    self.playerScore += 1
    self.playerScoreLabel.text = String(self.playerScore
    cardNamesArray.removeAtIndex(firstRandomNumber)
    cardNamesArray2.removeAtIndex(SecondRandomNumber)

    if cardNamesArray.count == 0 && cardNamesArray2.count == 0{
        print("User Won")
    }else{
        print("Continue Playing")
    }
}

崩溃更新：

用我的代码替换下面两行代码

firstRandomNumber = Int (arc4random_uniform(UInt32(cardNamesArray.count)))

SecondRandomNumber = Int(arc4random_uniform(UInt32(cardNamesArray2.count)))

---

可以在数组中使用dictionary对象

而不是

var cardNamesArray: [String] = ["sad", "sleepy","angry"]

你可以用

Class CardItem{

   var name = ""
   var isDisplayed:Boolean?

}

现在呢

var cardNamesArray: [CardItem] = [CardItem(name:"sad",isDisplayed:false), CardItem(name:"sleepy",isDisplayed:false),CardItem(name:"angry",isDisplayed:false)]

这是您的随机块：

SecondRandomNumber = Int (arc4random_uniform(3))

var uniqueItem = self.cardNamesArray2[SecondRandomNumber]

let SecondCardString:String = uniqueItem.name

self.SecondCardImageView.image = UIImage(named: SecondCardString)

uniqueItem.isDisplayed = true

---

因此，下次生成随机数时，只需检查项目的isDisplayed属性。

问题是，当它们匹配时，当玩家再次生成随机卡时，游戏会崩溃。“无法将类型为“int”的值转换为预期参数类型“UInt32”firstRandomNumber=int（arc4random_uniform（UInt32（cardNamesArray.count）））还有一个问题，如何结束数组，使其不超出范围？如果替换了上面的行，则不会超出范围。一旦数组计数为零，则不会生成随机数！