Question

我正在创建一个包含两个阵列图像的快照游戏，当玩家匹配阵列的最后一个元素时，我得到错误＆＃34;索引超出范围＆＃34;。我怎么能阻止这个？也许有一条消息说“＃34;所有的卡片都匹配了”＃34; 提前致谢

我的卡阵列：

    var cardArray = ["angry", "apple", "boots","heart", "pumpkin", "rainbow", "sad", "acorn", "chestnuts"]
    var cardArray2 = ["enfadadoTxt", "manzanaTxt", "botasTxt", "corazonTxt", "calabazaTxt", "arcoirisTxt", "tristeTxt", "bellotaTxt", "castanaTxt"]


    @IBAction func playRoundTapped(sender: UIButton) {

    //playRoundButton.userInteractionEnabled = false

    firstRandomNumber = GKRandomSource.sharedRandom().nextIntWithUpperBound(cardArray.count)
    firstCardImageView.image = UIImage(named: cardArray[firstRandomNumber])

    secondRandomNumber = GKRandomSource.sharedRandom().nextIntWithUpperBound(cardArray2.count)
    secondCardImageView.image = UIImage(named: cardArray2[secondRandomNumber])



}


func getRandomIntFromArray(Array: [String]) -> Int {

    return GKRandomSource.sharedRandom().nextIntWithUpperBound(cardArray.count)

}

这就是崩溃的地方：

@IBAction func snapButtonTapped(sender: UIButton) {

    if cardArray.count > 0 {

        if firstRandomNumber == secondRandomNumber {

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

            cardArray.removeAtIndex(firstRandomNumber)
            cardArray2.removeAtIndex(secondRandomNumber)

            firstRandomNumber = getRandomIntFromArray(cardArray)
            secondRandomNumber = getRandomIntFromArray(cardArray2)

            firstCardImageView.image = UIImage(named: cardArray[firstRandomNumber])//The problem might be here
            secondCardImageView.image = UIImage(named: cardArray2[secondRandomNumber])

            print(cardArray)
            print(cardArray2)


        } else {

            animationView.startCanvasAnimation()
            print("no match")


        }

    }

}

当我打印firstRandom编号，secondRandomNumber，array1和array2

时

0 1 [＆＃34;愤怒＆＃34;，＆＃34;南瓜＆＃34;，＆＃34;伤心＆＃34;，＆＃34;栗子＆＃34;] [＆＃34; enfadadoTxt＆＃34;，＆＃34; calabazaTxt＆＃34;，＆＃34; tristeTxt＆＃34;，＆＃34; castanaTxt＆＃34;]

1 1 [＆＃34;愤怒＆＃34;，＆＃34;伤心＆＃34;，＆＃34;栗子＆＃34;] [＆＃34; enfadadoTxt＆＃34;，＆＃34; tristeTxt＆＃34;，＆＃34; castanaTxt＆＃34;]

0 0 [＆＃34;愤怒＆＃34;，＆＃34;栗子＆＃34;] [＆＃34; enfadadoTxt＆＃34;，＆＃34; castanaTxt＆＃34;]

0 0 [＆＃34;栗子＆＃34;] [＆＃34; castanaTxt＆＃34;]

83844566 929875342 致命错误：索引超出范围

Answer 1

我现在唯一能看到的问题是：

firstRandomNumber = GKRandomSource.sharedRandom().nextIntWithUpperBound(cardArray.count)
    firstCardImageView.image = UIImage(named: cardArray[firstRandomNumber])

    secondRandomNumber = GKRandomSource.sharedRandom().nextIntWithUpperBound(cardArray2.count)
    secondCardImageView.image = UIImage(named: cardArray2[secondRandomNumber])

将其更改为

firstRandomNumber = GKRandomSource.sharedRandom().nextIntWithUpperBound(cardArray.count - 1)
    firstCardImageView.image = UIImage(named: cardArray[firstRandomNumber])

    secondRandomNumber = GKRandomSource.sharedRandom().nextIntWithUpperBound(cardArray2.count - 1)
    secondCardImageView.image = UIImage(named: cardArray2[secondRandomNumber])

另外，

return GKRandomSource.sharedRandom().nextIntWithUpperBound(cardArray.count)

到

return GKRandomSource.sharedRandom().nextIntWithUpperBound(cardArray.count - 1)

我的逻辑背后是你的array.count返回9个元素，但数组从0开始。

斯威夫特2：指数超出范围

1 个答案: