Playing cards: Difference between revisions
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=={{header|Swift}}==
{{works with|Swift 5}}
<syntaxhighlight lang="swift">
struct Card: CustomStringConvertible
{
enum Suit: String, CaseIterable, CustomStringConvertible
{
case clubs = "♣️"
case diamonds = "♦️"
case hearts = "♥️"
case spades = "♠️"
var description: String { rawValue }
}
let suit: Suit
let value: Int
var description: String
{
let valueAsString: String
switch value
{
case 1:
valueAsString = "A"
case 11:
valueAsString = "J"
case 12:
valueAsString = "Q"
case 13:
valueAsString = "K"
default:
valueAsString = "\(value)"
}
return valueAsString + suit.description
}
}
struct Deck: CustomStringConvertible
{
var cards: [Card] = []
init()
{
for suit in Card.Suit.allCases
{
for faceValue in 1 ... 13
{
cards.append(Card(suit: suit, value: faceValue))
}
}
}
var description: String
{
String(cards.map{ $0.description }.joined(separator: ", "))
}
mutating func shuffle()
{
cards.shuffle()
}
mutating func dealCard() -> Card?
{
guard !cards.isEmpty else { return nil }
return cards.removeLast()
}
}
var deck = Deck()
print("New deck:")
print(deck)
deck.shuffle()
print("Shuffled deck:")
print(deck)
var hands: [[Card]] = [[], [], [], []]
var handIndex = 0
while let card = deck.dealCard()
{
hands[handIndex].append(card)
handIndex = (handIndex + 1) % hands.count
}
print ("Hands:")
print(hands.map({ $0.description }).joined(separator: "\n"))
print("Remaining deck (should be empty):")
print(deck)
</syntaxhighlight>
{{out}}
<pre>
New deck:
A♣️, 2♣️, 3♣️, 4♣️, 5♣️, 6♣️, 7♣️, 8♣️, 9♣️, 10♣️, J♣️, Q♣️, K♣️, A♦️, 2♦️, 3♦️, 4♦️, 5♦️, 6♦️, 7♦️, 8♦️, 9♦️, 10♦️, J♦️, Q♦️, K♦️, A♥️, 2♥️, 3♥️, 4♥️, 5♥️, 6♥️, 7♥️, 8♥️, 9♥️, 10♥️, J♥️, Q♥️, K♥️, A♠️, 2♠️, 3♠️, 4♠️, 5♠️, 6♠️, 7♠️, 8♠️, 9♠️, 10♠️, J♠️, Q♠️, K♠️
Shuffled deck:
2♣️, 2♠️, 8♠️, K♣️, 7♥️, Q♠️, 3♥️, 5♦️, 7♣️, 6♥️, J♥️, 10♣️, 6♠️, 8♥️, A♦️, 6♣️, 10♠️, 9♠️, 2♥️, 7♠️, 3♠️, 6♦️, A♥️, 5♥️, 9♣️, 5♣️, A♣️, 3♣️, 3♦️, 9♥️, Q♥️, 4♣️, 8♣️, K♦️, 10♥️, 4♦️, J♦️, 7♦️, 8♦️, J♣️, Q♦️, 5♠️, 2♦️, 4♥️, 10♦️, 9♦️, K♥️, 4♠️, J♠️, K♠️, Q♣️, A♠️
Hands:
[A♠️, 4♠️, 4♥️, J♣️, 4♦️, 4♣️, 3♣️, 5♥️, 7♠️, 6♣️, 10♣️, 5♦️, K♣️]
[Q♣️, K♥️, 2♦️, 8♦️, 10♥️, Q♥️, A♣️, A♥️, 2♥️, A♦️, J♥️, 3♥️, 8♠️]
[K♠️, 9♦️, 5♠️, 7♦️, K♦️, 9♥️, 5♣️, 6♦️, 9♠️, 8♥️, 6♥️, Q♠️, 2♠️]
[J♠️, 10♦️, Q♦️, J♦️, 8♣️, 3♦️, 9♣️, 3♠️, 10♠️, 6♠️, 7♣️, 7♥️, 2♣️]
Remaining deck (should be empty):
</pre>
{{works with|Swift 2.0}}
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