remove matching images from two Arrays - arrays

Question

I'm making a snap game were I'm trying to remove two images from an array so they don't reappear again when first random card and second random card match. Is there any way I can do this? Thanks
var cardNamesArray: [String] = ["sad", "sleepy","angry"]
var cardNamesArray2: [String] = ["triste", "cansado","enfadado"]
Generates a random card for the first Array
firstRandomNumber = Int (arc4random_uniform(3))
let firstCardString:String = self.cardNamesArray[firstRandomNumber]
self.FirstCardImageView.image = UIImage(named: firstCardString)
Generates a random card for the second Array
SecondRandomNumber = Int (arc4random_uniform(3))
let SecondCardString:String = self.cardNamesArray2[SecondRandomNumber]
self.SecondCardImageView.image = UIImage(named: SecondCardString)
If they match player score 1 point
#IBAction func SnapButtonTapped(sender: UIButton) {
if firstRandomNumber == SecondRandomNumber {
print("index match")
self.playerScore += 1
self.playerScoreLabel.text = String(self.playerScore
}

Answer 1

Why don't you try to remove images from an Array itself. Once the random number matches, you can do that!
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")
}
}
Crash Update:
Replace the below two lines in your code with mine
firstRandomNumber = Int (arc4random_uniform(UInt32(cardNamesArray.count)))
SecondRandomNumber = Int(arc4random_uniform(UInt32(cardNamesArray2.count)))

Answer 2

You may use a dictionary object in the Array.
Instead of
var cardNamesArray: [String] = ["sad", "sleepy","angry"]
You may use
Class CardItem{
var name = ""
var isDisplayed:Boolean?
}
And now
var cardNamesArray: [CardItem] = [CardItem(name:"sad",isDisplayed:false), CardItem(name:"sleepy",isDisplayed:false),CardItem(name:"angry",isDisplayed:false)]
Here is your random chunk:
SecondRandomNumber = Int (arc4random_uniform(3))
var uniqueItem = self.cardNamesArray2[SecondRandomNumber]
let SecondCardString:String = uniqueItem.name
self.SecondCardImageView.image = UIImage(named: SecondCardString)
uniqueItem.isDisplayed = true
So when you next time generate random number just check item's isDisplayed property.