public static PokerHand DetectFourKind(int[] cardFreq, OrderedCardSet cards)
{
int?four = null;
int?one = null;
for (int index = 0; index < cardFreq.Length; index += 1)
{
if (cardFreq[index] == 4 && !four.HasValue)
{
four = index;
}
else if (cardFreq[index] == 1 && !one.HasValue)
{
one = index;
}
}
if (four.HasValue && one.HasValue)
{
return(new FourKindHand(four.Value, one.Value, cards));
}
else
{
return(null);
}
}
public static PokerHand DetectFullHouse(int[] cardFreq, OrderedCardSet cards)
{
int?three = null;
int?two = null;
for (int index = 0; index < cardFreq.Length; index += 1)
{
if (cardFreq[index] == 3 && !three.HasValue)
{
three = index;
}
else if (cardFreq[index] == 2 && !two.HasValue)
{
two = index;
}
}
if (three.HasValue && two.HasValue)
{
return(new FullHouseHand(three.Value, two.Value, cards));
}
else
{
return(null);
}
}
public static HandPlayResult TestHandChances(PokerHand hand, OrderedCardSet handCards, ICardDealer dealer)
{
OrderedCardSet oponentSet = HoldemHand.GetOtherCards(dealer.FullDeck, handCards, dealer.CommunityCards);
int wins = 0, ties = 0, losses = 0;
List <OrderedCardSet> allHands = GetOpponentCombinationOfHandCards(oponentSet);
foreach (OrderedCardSet iHand in allHands)
{
PokerHand otherHand = HoldemHand.ChooseBestHand(iHand, dealer.CommunityCards);
int compare = hand.CompareTo(otherHand);
if (compare > 0)
{
wins += 1;
}
else if (compare < 0)
{
losses += 1;
}
else
{
ties += 1;
}
}
return(new HandPlayResult(allHands.Count, wins, ties, losses));
}
public static List <OrderedCardSet> GetCombinationOfPokerHands(OrderedCardSet handCards, OrderedCardSet community)
{
List <PlayingCard> totalCards = new List <PlayingCard>();
totalCards.AddRange(handCards.asList());
totalCards.AddRange(community.asList());
List <OrderedCardSet> possibleSets = new List <OrderedCardSet>();
int len = totalCards.Count;
for (int t1 = 0; t1 < len; t1 += 1)
{
for (int t2 = t1 + 1; t2 < len; t2 += 1)
{
for (int t3 = t2 + 1; t3 < len; t3 += 1)
{
for (int t4 = t3 + 1; t4 < len; t4 += 1)
{
for (int t5 = t4 + 1; t5 < len; t5 += 1)
{
OrderedCardSet set = new OrderedCardSet(new List <PlayingCard> {
totalCards[t1], totalCards[t2], totalCards[t3], totalCards[t4], totalCards[t5]
});
possibleSets.Add(set);
}
}
}
}
}
return(possibleSets);
}
public void ShuffleAndDealDeck(PokerPlayer playerOne, PokerPlayer playerTwo)
{
Random random = new Random();
List <PlayingCard> cards = new List <PlayingCard>(fullDeck.asList());
//Player one
List <PlayingCard> oneCards = new List <PlayingCard>();
oneCards.Add(randomRemove(cards, random));
oneCards.Add(randomRemove(cards, random));
playerOne.HandCards = new OrderedCardSet(oneCards);
//Player two
List <PlayingCard> twoCards = new List <PlayingCard>();
twoCards.Add(randomRemove(cards, random));
twoCards.Add(randomRemove(cards, random));
playerTwo.HandCards = new OrderedCardSet(twoCards);
//Community Cards
List <PlayingCard> comCards = new List <PlayingCard>();
comCards.Add(randomRemove(cards, random));
comCards.Add(randomRemove(cards, random));
comCards.Add(randomRemove(cards, random));
comCards.Add(randomRemove(cards, random));
comCards.Add(randomRemove(cards, random));
communityCards = new OrderedCardSet(comCards);
leftOverDeck = new OrderedCardSet(cards);
}
public static PokerHand DetectStraightNFlush(int[] cardFreq, OrderedCardSet cards)
{
//Flush
PlayingCard.Suit?flushSuit = null;
{
foreach (PlayingCard card in cards)
{
if (flushSuit.HasValue)
{
if (card.CardSuit != flushSuit.Value)
{
flushSuit = null;
break;
}
}
else
{
flushSuit = card.CardSuit;
}
}
}
//Straight
int?straightRank = null;
for (int high = cardFreq.Length - 1; high >= 4; high -= 1)
{
for (int index = high; index > high - 5; index -= 1)
{
if (cardFreq[index] < 1)
{
goto skip;
}
}
straightRank = high;
break;
skip :;
}
if (straightRank.HasValue && flushSuit.HasValue)
{
return(new StraightFlushHand(straightRank.Value, flushSuit.Value, cards));
}
else
{
if (straightRank.HasValue)
{
return(new StraightHand(straightRank.Value, cards));
}
else if (flushSuit.HasValue)
{
return(new FlushHand(flushSuit.Value, cards));
}
}
return(null);
}
public static List <OrderedCardSet> GetOpponentCombinationOfHandCards(OrderedCardSet fullDeck, OrderedCardSet playerCards, OrderedCardSet communityCards)
{
List <PlayingCard> remaining = new List <PlayingCard>(fullDeck.asList());
remaining.RemoveAll(card => playerCards.asList().Contains(card));
remaining.RemoveAll(card => communityCards.asList().Contains(card));
return(GetOpponentCombinationOfHandCards(new OrderedCardSet(remaining)));
}
public static OrderedCardSet GetOtherCards(OrderedCardSet fullDeck, OrderedCardSet playerCards, OrderedCardSet communityCards)
{
List <PlayingCard> remaining = new List <PlayingCard>(fullDeck.asList());
remaining.RemoveAll(card => playerCards.asList().Contains(card));
remaining.RemoveAll(card => communityCards.asList().Contains(card));
return(new OrderedCardSet(remaining));
}
public static PokerHand DetectOnePair(int[] cardFreq, OrderedCardSet cards)
{
int?two = null;
int?kickLow = null;
int?kickMed = null;
int?kickHigh = null;
for (int index = 0; index < cardFreq.Length; index += 1)
{
if (cardFreq[index] == 2 && !two.HasValue)
{
two = index;
}
else if (cardFreq[index] == 1)
{
if (!kickLow.HasValue)
{
kickLow = index;
}
else if (!kickMed.HasValue)
{
kickMed = index;
}
else if (!kickHigh.HasValue)
{
kickHigh = index;
}
}
}
if (two.HasValue && kickLow.HasValue && kickMed.HasValue && kickHigh.HasValue)
{
return(new OnePairHand(two.Value, kickHigh.Value, kickMed.Value, kickLow.Value, cards));
}
else
{
return(null);
}
}
public static List <OrderedCardSet> GetOpponentCombinationOfHandCards(OrderedCardSet otherCards)
{
IList <PlayingCard> hand = otherCards.asList();
List <OrderedCardSet> results = new List <OrderedCardSet>();
for (int prim = 0; prim < hand.Count; prim += 1)
{
for (int sec = prim + 1; sec < hand.Count; sec += 1)
{
PlayingCard primCard = hand[prim];
PlayingCard secondCard = hand[sec];
OrderedCardSet cardSet = new OrderedCardSet(new List <PlayingCard> {
primCard, secondCard
});
results.Add(cardSet);
}
}
return(results);
}
public static PokerHand ChooseBestHand(OrderedCardSet handCards, OrderedCardSet playingCards)
{
PokerHand best = null;
List <OrderedCardSet> createHands = GetCombinationOfPokerHands(handCards, playingCards);
foreach (OrderedCardSet hand in createHands)
{
PokerHand pHand = IdentitfyHand(hand);
if (best == null)
{
best = pHand;
}
else if (pHand.CompareTo(best) > 0)
{
best = pHand;
}
}
return(best);
}
public static PokerHand DetectTwoPair(int[] cardFreq, OrderedCardSet cards)
{
int?twoHigh = null;
int?twoLow = null;
int?kicker = null;
for (int index = 0; index < cardFreq.Length; index += 1)
{
if (cardFreq[index] == 1 && !kicker.HasValue)
{
kicker = index;
}
else if (cardFreq[index] == 2)
{
if (!twoLow.HasValue)
{
twoLow = index;
}
else if (!twoHigh.HasValue)
{
twoHigh = index;
}
}
}
if (twoHigh.HasValue && twoLow.HasValue && kicker.HasValue)
{
return(new TwoPairHand(twoHigh.Value, twoLow.Value, kicker.Value, cards));
}
else
{
return(null);
}
}
public static PokerHand DetectThreeKind(int[] cardFreq, OrderedCardSet cards)
{
int?three = null;
int?low = null;
int?high = null;
for (int index = 0; index < cardFreq.Length; index += 1)
{
if (cardFreq[index] == 3 && !three.HasValue)
{
three = index;
}
else if (cardFreq[index] == 1)
{
if (!low.HasValue)
{
low = index;
}
else if (!high.HasValue)
{
high = index;
}
}
}
if (three.HasValue && low.HasValue && high.HasValue)
{
return(new ThreeKindHand(three.Value, high.Value, low.Value, cards));
}
else
{
return(null);
}
}
public static PokerHand IdentitfyHand(OrderedCardSet cards)
{
if (cards.Count != 5)
{
throw new ArgumentException("Illegal card count");
}
/*PokerHand hand = null;
*
* foreach (PokerHand.HandValidator validator in testOrder) {
*
* if (validator(cards, out hand)) {
* break;
* }
* }
*
* return hand;*/
int[] cardFreq = new int[13];
foreach (PlayingCard card in cards)
{
int rank = (int)card.CardRank;
cardFreq[rank] += 1;
}
{//Straight n Flush
PokerHand hand = DetectStraightNFlush(cardFreq, cards);
if (hand != null)
{
return(hand);
}
}
{//FourKind
PokerHand hand = DetectFourKind(cardFreq, cards);
if (hand != null)
{
return(hand);
}
}
{//Full House
PokerHand hand = DetectFullHouse(cardFreq, cards);
if (hand != null)
{
return(hand);
}
}
{//Three Kind
PokerHand hand = DetectThreeKind(cardFreq, cards);
if (hand != null)
{
return(hand);
}
}
{//Two Pair
PokerHand hand = DetectTwoPair(cardFreq, cards);
if (hand != null)
{
return(hand);
}
}
{//One Pair
PokerHand hand = DetectOnePair(cardFreq, cards);
if (hand != null)
{
return(hand);
}
}
return(new HighCardHand(cards));
}
public DefaultCardDealer()
{
fullDeck = generateFullDeck();
communityCards = new OrderedCardSet(new List <PlayingCard>());
leftOverDeck = new OrderedCardSet(new List <PlayingCard>());
}