//determine the hole cards of the player and the community cards to be dealt
//determines who will win the showdown at the end
public void CalculateHandValueHard(Hand otherHand,Deck deck)
{
Hand knownCommunityCards = new Hand();
Hand remainingCommunityCards = new Hand();
//add known community cards
for (int i = 2; i < myHand.Count(); i++)
{
knownCommunityCards.Add(myHand[i]);
}
//generate remaining community cards
if (knownCommunityCards.Count() < 5)
{
remainingCommunityCards.Add(deck.Deal());
if (knownCommunityCards.Count() < 4)
{
remainingCommunityCards.Add(deck.Deal());
if (knownCommunityCards.Count() < 3)
{
remainingCommunityCards.Add(deck.Deal());
remainingCommunityCards.Add(deck.Deal());
remainingCommunityCards.Add(deck.Deal());
}
}
}
//add the remaining cards
this.AddToHand(remainingCommunityCards);
otherHand += remainingCommunityCards;
otherHand += knownCommunityCards;
//compare hands
if (HandCombination.getBestHandEfficiently(new Hand(myHand)) > HandCombination.getBestHandEfficiently(new Hand(otherHand)))
handValue = 1;
else if (HandCombination.getBestHandEfficiently(new Hand(myHand)) < HandCombination.getBestHandEfficiently(new Hand(otherHand)))
handValue = 0;
else
handValue = 0.5;
for (int i = 0; i < remainingCommunityCards.Count(); i++)
{
myHand.Remove(remainingCommunityCards[i]);
}
}
//use recursion to get rid of pairs, then evaluate straight flush
public static bool isStraightFlush(Hand hand)
{
hand.sortByRank();
Hand simplifiedhand1, simplifiedhand2; //to be set the same as hand - cards are removed from this hand to evaluate straights separately without the interference of pairs or three-of-a-kind
for (int i = 0; i <= hand.Count() - 2; i++)
{
if (hand.getCard(i) == hand.getCard(i + 1))
{
simplifiedhand1 = new Hand(hand);
simplifiedhand1.Remove(i);
simplifiedhand2 = new Hand(hand);
simplifiedhand2.Remove(i + 1);
if (HandCombination.isStraightFlush(simplifiedhand1))
{
return(true);
}
if (HandCombination.isStraightFlush(simplifiedhand2))
{
return(true);
}
}
}
for (int i = 0; i <= hand.Count() - 5; i++)
{
int currentrank = hand.getCard(i).getRank(), currentsuit = hand.getCard(i).getSuit();
if (currentrank == hand.getCard(i + 1).getRank() + 1 && currentrank == hand.getCard(i + 2).getRank() + 2 && currentrank == hand.getCard(i + 3).getRank() + 3 && currentrank == hand.getCard(i + 4).getRank() + 4 && currentsuit == hand.getCard(i + 1).getSuit() && currentsuit == hand.getCard(i + 2).getSuit() && currentsuit == hand.getCard(i + 3).getSuit() && currentsuit == hand.getCard(i + 4).getSuit())
{
return(true);
}
}
for (int i = 0; i <= hand.Count() - 4; i++)
{
int currentrank = hand.getCard(i).getRank(), currentsuit = hand.getCard(i).getSuit();
if (currentrank == 5 && hand.getCard(i + 1).getRank() == 4 && hand.getCard(i + 2).getRank() == 3 && hand.getCard(i + 3).getRank() == 2 && hand.getCard(0).getRank() == 14 && currentsuit == hand.getCard(i + 1).getSuit() && currentsuit == hand.getCard(i + 2).getSuit() && currentsuit == hand.getCard(i + 3).getSuit() && currentsuit == hand.getCard(0).getSuit())
{
return(true);
}
}
return(false);
}
//get all remaining cards, if necessary, to form 5 cards
private static Hand getKickers(Hand hand, Hand specialCards)
{
if (specialCards.Count() == 0)
{
return(specialCards);
}
for (int i = 0; i < specialCards.Count(); i++)
{
hand.Remove(specialCards.getCard(i));
}
for (int i = 0; i < hand.Count(); i++)
{
if (specialCards.Count() >= 5)
{
break;
}
specialCards.Add(hand.getCard(i));
specialCards.setValue(hand.getCard(i).getRank());
}
return(specialCards);
}
public static bool isOnePair(Hand hand)
{
hand.sortByRank();
for (int i = 0; i <= hand.Count() - 2; i++)
{
if (hand.getCard(i) == hand.getCard(i + 1))
{
return(true);
}
}
return(false);
}
public static bool isThreeOfAKind(Hand hand)
{
hand.sortByRank();
for (int i = 0; i <= hand.Count() - 3; i++)
{
if (hand.getCard(i) == hand.getCard(i + 1) && hand.getCard(i) == hand.getCard(i + 2))
{
return(true);
}
}
return(false);
}
public static Hand getBestHand(Hand hand)
{
if (hand.Count() < 5)
{
hand.Clear();
return(hand);
}
if (isRoyalFlush(hand))
{
return(getRoyalFlush(hand));
}
if (isStraightFlush(hand))
{
return(getStraightFlush(hand));
}
if (isFourOfAKind(hand))
{
return(getFourOfAKind(hand));
}
if (isFullHouse(hand))
{
return(getFullHouse(hand));
}
if (isFlush(hand))
{
return(getFlush(hand));
}
if (isStraight(hand))
{
return(getStraight(hand));
}
if (isThreeOfAKind(hand))
{
return(getThreeOfAKind(hand));
}
if (isTwoPair(hand))
{
return(getTwoPair(hand));
}
if (isOnePair(hand))
{
return(getOnePair(hand));
}
return(getHighCard(hand));
}
public static Hand getOnePair(Hand hand)
{
hand.sortByRank();
Hand onepair = new Hand();
onepair.setValue(2);
for (int i = 0; i <= hand.Count() - 2; i++)
{
if (hand.getCard(i) == hand.getCard(i + 1))
{
onepair.setValue(hand.getCard(i).getRank());
onepair.Add(hand.getCard(i));
onepair.Add(hand.getCard(i + 1));
break;
}
}
return(getKickers(hand, onepair));
}
public static Hand getThreeOfAKind(Hand hand)
{
hand.sortByRank();
Hand threeofakind = new Hand();
threeofakind.setValue(4);
for (int i = 0; i <= hand.Count() - 3; i++)
{
if (hand.getCard(i) == hand.getCard(i + 1) && hand.getCard(i) == hand.getCard(i + 2))
{
threeofakind.setValue(hand.getCard(i).getRank());
threeofakind.Add(hand.getCard(i));
threeofakind.Add(hand.getCard(i + 1));
threeofakind.Add(hand.getCard(i + 2));
break;
}
}
return(getKickers(hand, threeofakind));
}
//use a counter, if a counter reaches five, a flush is detected
public static bool isFlush(Hand hand)
{
hand.sortByRank();
int diamondCount = 0, clubCount = 0, heartCount = 0, spadeCount = 0;
for (int i = 0; i < hand.Count(); i++)
{
if ((SUIT)hand.getCard(i).getSuit() == SUIT.DIAMONDS)
{
diamondCount++;
}
else if ((SUIT)hand.getCard(i).getSuit() == SUIT.CLUBS)
{
clubCount++;
}
else if ((SUIT)hand.getCard(i).getSuit() == SUIT.HEARTS)
{
heartCount++;
}
else if ((SUIT)hand.getCard(i).getSuit() == SUIT.SPADES)
{
spadeCount++;
}
}
if (diamondCount >= 5)
{
return(true);
}
else if (clubCount >= 5)
{
return(true);
}
else if (heartCount >= 5)
{
return(true);
}
else if (spadeCount >= 5)
{
return(true);
}
return(false);
}
//same as above except return the cards themselves
public static Hand getFourOfAKind(Hand hand)
{
Hand fourofakind = new Hand();
fourofakind.setValue(8);
hand.sortByRank();
for (int i = 0; i <= hand.Count() - 4; i++)
{
if (hand.getCard(i) == hand.getCard(i + 1) && hand.getCard(i) == hand.getCard(i + 2) && hand.getCard(i) == hand.getCard(i + 3))
{
fourofakind.Add(hand.getCard(i));
fourofakind.Add(hand.getCard(i + 1));
fourofakind.Add(hand.getCard(i + 2));
fourofakind.Add(hand.getCard(i + 3));
fourofakind.setValue(hand.getCard(i).getRank());
break;
}
}
return(getKickers(hand, fourofakind));
}
public static bool isTwoPair(Hand hand)
{
hand.sortByRank();
int pairCount = 0;
for (int i = 0; i <= hand.Count() - 2; i++)
{
if (hand.getCard(i) == hand.getCard(i + 1))
{
pairCount++;
i++; //the pair has already been checked, i must be incremented an additional time to avoid using a card in this pair again. This prevents the program from identifying 3 of a kind as 2 pairs.
}
}
if (pairCount >= 2)
{
return(true);
}
else
{
return(false);
}
}
//using the monte carlo method, calculate a hand value for the AI's current hand
//this can be very hard on the computer's memory and processor and can result in lag time
public void CalculateHandValue(int count)
{
double score = 0;
PlayerList playerList = new PlayerList();
for (int i = 0; i < count - 1; i++)
{
playerList.Add(new Player());
}
Hand bestHand = new Hand();
int bestHandCount = 1;
Deck deck = new Deck();
Hand knownCommunityCards = new Hand();
Hand remainingCommunityCards = new Hand();
Hand myHoleCards = new Hand();
//remove known cards from deck
for (int i = 0; i < myHand.Count(); i++)
{
deck.Remove(myHand[i]);
}
//add known community cards
for (int i = 2; i < myHand.Count(); i++)
{
knownCommunityCards.Add(myHand[i]);
}
myHoleCards.Add(this.getHand()[0]);
myHoleCards.Add(this.getHand()[1]);
//loop 100 times
for (int i = 0; i < 100; i++)
{
//reset players and shuffle deck
for (int j = 0; j < playerList.Count; j++)
{
playerList[j].isbusted = false;
playerList[j].getHand().Clear();
}
myHand.Clear();
remainingCommunityCards.Clear();
deck.Shuffle();
//generate remaining community cards
if (knownCommunityCards.Count() < 5)
{
remainingCommunityCards.Add(deck.Deal());
if (knownCommunityCards.Count() < 4)
{
remainingCommunityCards.Add(deck.Deal());
if (knownCommunityCards.Count() < 3)
{
remainingCommunityCards.Add(deck.Deal());
remainingCommunityCards.Add(deck.Deal());
remainingCommunityCards.Add(deck.Deal());
}
}
}
//add hole/community cards to the AI
this.AddToHand(knownCommunityCards);
this.AddToHand(remainingCommunityCards);
this.AddToHand(myHoleCards);
//add hole/community cards to other players
for (int j = 0; j < playerList.Count; j++)
{
playerList[j].AddToHand(knownCommunityCards);
if (remainingCommunityCards.Count() != 0)
playerList[j].AddToHand(remainingCommunityCards);
playerList[j].AddToHand(deck.Deal());
playerList[j].AddToHand(deck.Deal());
//if player is dealt hole cards of less than 5-5, and no pocket pairs the player drops out
if (playerList[j].getHand()[playerList[j].getHand().Count() - 1].getRank() + playerList[j].getHand()[playerList[j].getHand().Count() - 2].getRank() <= 10 && playerList[j].getHand()[playerList[j].getHand().Count() - 1].getRank() != playerList[j].getHand()[playerList[j].getHand().Count() - 2].getRank())
{
playerList[j].isbusted = true;
}
}
//add cards back to deck
for (int j = 0; j < remainingCommunityCards.Count(); j++)
{
deck.Add(remainingCommunityCards[j]);
}
for (int j = 0; j < playerList.Count; j++)
{
deck.Add(playerList[j].getHand()[playerList[j].getHand().Count() - 1]);
deck.Add(playerList[j].getHand()[playerList[j].getHand().Count() - 2]);
}
//compare hands
bestHandCount = 1;
playerList.Add(this);
bestHand = playerList[0].getHand();
for (int j = 0; j <playerList.Count-1; j++)
{
if (playerList[j].isbusted)
continue;
if (HandCombination.getBestHandEfficiently(new Hand(playerList[j+1].getHand())) > HandCombination.getBestHandEfficiently(new Hand(playerList[j].getHand())))
{
bestHandCount = 1;
bestHand = playerList[j+1].getHand();
}
else if (HandCombination.getBestHandEfficiently(new Hand(playerList[j+1].getHand())) == HandCombination.getBestHandEfficiently(new Hand(playerList[j].getHand())))
bestHandCount++;
}
playerList.Remove(this);
//if my hand is the best, increment score
if (myHand.isEqual(bestHand))
score = score + (1 / bestHandCount);
}
//reconstruct original hand
myHand.Clear();
this.AddToHand(myHoleCards);
this.AddToHand(knownCommunityCards);
//calculate hand value as a percentage of wins
handValue = score / 100;
}
//use a counter to determine with suit forms a flush
//then get all cards from the suit
public static Hand getFlush(Hand hand)
{
hand.sortByRank();
Hand flush = new Hand();
flush.setValue(6);
int diamondCount = 0, clubCount = 0, heartCount = 0, spadeCount = 0;
for (int i = 0; i < hand.Count(); i++)
{
if ((SUIT)hand.getCard(i).getSuit() == SUIT.DIAMONDS)
{
diamondCount++;
}
else if ((SUIT)hand.getCard(i).getSuit() == SUIT.CLUBS)
{
clubCount++;
}
else if ((SUIT)hand.getCard(i).getSuit() == SUIT.HEARTS)
{
heartCount++;
}
else if ((SUIT)hand.getCard(i).getSuit() == SUIT.SPADES)
{
spadeCount++;
}
}
if (diamondCount >= 5)
{
for (int i = 0; i < hand.Count(); i++)
{
if (hand.getCard(i).getSuit() == 1)
{
flush.Add(hand.getCard(i));
flush.setValue(hand.getCard(i).getRank());
}
if (flush.Count() == 5)
{
break;
}
}
//return flush;
}
else if (clubCount >= 5)
{
for (int i = 0; i <= hand.Count(); i++)
{
if (hand.getCard(i).getSuit() == 2)
{
flush.Add(hand.getCard(i));
flush.setValue(hand.getCard(i).getRank());
}
if (flush.Count() == 5)
{
break;
}
}
//return flush;
}
else if (heartCount >= 5)
{
for (int i = 0; i <= hand.Count(); i++)
{
if (hand.getCard(i).getSuit() == 3)
{
flush.Add(hand.getCard(i));
flush.setValue(hand.getCard(i).getRank());
}
if (flush.Count() == 5)
{
break;
}
}
//return flush;
}
else if (spadeCount >= 5)
{
for (int i = 0; i <= hand.Count(); i++)
{
if (hand.getCard(i).getSuit() == 4)
{
flush.Add(hand.getCard(i));
flush.setValue(hand.getCard(i).getRank());
}
if (flush.Count() == 5)
{
break;
}
}
//return flush;
}
return(flush);
}
//get straight flush using two pointer variable and taking care of all cases
public static Hand getStraightFlush(Hand hand)
{
hand.sortByRank();
Hand straightflush = new Hand();
straightflush.setValue(9);
if (hand.getCard(0).getRank() == 14)
{
hand.Add(new Card((int)RANK.ACE, hand.getCard(0).getSuit()));
}
//int straightflushCount = 1;
straightflush.Add(hand.getCard(0));
int ptr1 = 0, ptr2 = 1;
while (ptr1 < hand.Count() - 2 || ptr2 < hand.Count())
{
if (straightflush.Count() >= 5)
{
break;
}
int rank1 = hand.getCard(ptr1).getRank(), rank2 = hand.getCard(ptr2).getRank();
int suit1 = hand.getCard(ptr1).getSuit(), suit2 = hand.getCard(ptr2).getSuit();
if (rank1 - rank2 == 1 && suit1 == suit2)
{
straightflush.Add(hand.getCard(ptr2));
ptr1 = ptr2;
ptr2++;
}
else if (rank1 == 2 && rank2 == 14 && suit1 == suit2)
{
straightflush.Add(hand.getCard(ptr2));
ptr1 = ptr2;
ptr2++;
}
else
{
if (rank1 - rank2 <= 1)
{
ptr2++;
}
else
{
straightflush.Clear();
straightflush.setValue(9);
ptr1++;
ptr2 = ptr1 + 1;
straightflush.Add(hand.getCard(ptr1));
}
}
}
if (hand.getCard(0).getRank() == 14)
{
hand.Remove(hand.Count() - 1);
}
straightflush.setValue(straightflush.getCard(0).getRank());
if (straightflush.Count() < 5)
{
straightflush.Clear();
}
return(straightflush);
}