//look for royal flush, removing pair using recursion
public static bool isRoyalFlush(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[i] == hand[i + 1])
{
simplifiedhand1 = new Hand(hand);
simplifiedhand1.Remove(i);
simplifiedhand2 = new Hand(hand);
simplifiedhand2.Remove(i + 1);
if (HandCombination.isRoyalFlush(simplifiedhand1))
{
return(true);
}
if (HandCombination.isRoyalFlush(simplifiedhand2))
{
return(true);
}
}
}
int currentsuit = hand.getCard(0).getSuit();
if (hand.getCard(0).getRank() == 14 && hand.getCard(1).getRank() == 13 && hand.getCard(2).getRank() == 12 && hand.getCard(3).getRank() == 11 && hand.getCard(4).getRank() == 10 && hand.getCard(1).getSuit() == currentsuit && hand.getCard(2).getSuit() == currentsuit && hand.getCard(3).getSuit() == currentsuit && hand.getCard(4).getSuit() == currentsuit)
{
return(true);
}
else
{
return(false);
}
}
PlayerList QuickSortBestHand(PlayerList myPlayers)
{
Player pivot;
Random ran = new Random();
if (myPlayers.Count() <= 1)
{
return(myPlayers);
}
pivot = myPlayers[ran.Next(myPlayers.Count())];
myPlayers.Remove(pivot);
var less = new PlayerList();
var greater = new PlayerList();
// Assign values to less or greater list
foreach (Player player in myPlayers)
{
if (HandCombination.getBestHand(new Hand(player.getHand())) > HandCombination.getBestHand(new Hand(pivot.getHand())))
{
greater.Add(player);
}
else if (HandCombination.getBestHand(new Hand(player.getHand())) <= HandCombination.getBestHand(new Hand(pivot.getHand())))
{
less.Add(player);
}
}
// Recurse for less and greaterlists
var list = new PlayerList();
list.AddRange(QuickSortBestHand(greater));
list.Add(pivot);
list.AddRange(QuickSortBestHand(less));
return(list);
}
//get royal flush using recursion
public static Hand getRoyalFlush(Hand hand)
{
hand.sortByRank();
Hand straightflush = new Hand(HandCombination.getStraightFlush(hand));
straightflush.setValue(10);
if (straightflush.getCard(0).getRank() == 14)
{
return(straightflush);
}
else
{
straightflush.Clear();
return(straightflush);
}
}
//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);
}
//showdown code!
public void ShowDown()
{
//creating sidepots
if (CreateSidePots())
{
mainPot.getPlayersInPot().Sort();
for (int i = 0; i < mainPot.getPlayersInPot().Count - 1; i++)
{
if (mainPot.getPlayersInPot()[i].AmountInPot != mainPot.getPlayersInPot()[i + 1].AmountInPot)
{
PlayerList tempPlayers = new PlayerList();
for (int j = mainPot.getPlayersInPot().Count - 1; j > i; j--)
{
tempPlayers.Add(mainPot.getPlayersInPot()[j]);
}
int potSize = (mainPot.getPlayersInPot()[i + 1].AmountInPot - mainPot.getPlayersInPot()[i].AmountInPot) * tempPlayers.Count;
mainPot.Amount -= potSize;
sidePots.Add(new Pot(potSize, tempPlayers));
}
}
}
//awarding mainpot
PlayerList bestHandList = new PlayerList();
List <int> Winners = new List <int>();
bestHandList = QuickSortBestHand(new PlayerList(mainPot.getPlayersInPot()));
for (int i = 0; i < bestHandList.Count; i++)
{
for (int j = 0; j < this.getPlayers().Count; j++)
{
if (players[j] == bestHandList[i])
{
Winners.Add(j);
}
}
if (HandCombination.getBestHand(new Hand(bestHandList[i].getHand())) != HandCombination.getBestHand(new Hand(bestHandList[i + 1].getHand())))
{
break;
}
}
mainPot.Amount /= Winners.Count;
if (Winners.Count > 1)
{
for (int i = 0; i < this.getPlayers().Count; i++)
{
if (Winners.Contains(i))
{
currentIndex = i;
players[i].CollectMoney(mainPot);
winnermessage += players[i].Name + ", ";
}
}
winnermessage += Environment.NewLine + " split the pot.";
}
else
{
currentIndex = Winners[0];
players[currentIndex].CollectMoney(mainPot);
winnermessage = players[currentIndex].Message;
}
//awarding sidepots
for (int i = 0; i < sidePots.Count; i++)
{
List <int> sidePotWinners = new List <int>();
for (int x = 0; x < bestHandList.Count; x++)
{
for (int j = 0; j < this.getPlayers().Count; j++)
{
if (players[j] == bestHandList[x] && sidePots[i].getPlayersInPot().Contains(bestHandList[x]))
{
sidePotWinners.Add(j);
}
}
if (HandCombination.getBestHand(new Hand(bestHandList[x].getHand())) != HandCombination.getBestHand(new Hand(bestHandList[x + 1].getHand())) && sidePotWinners.Count != 0)
{
break;
}
}
sidePots[i].Amount /= sidePotWinners.Count;
for (int j = 0; j < this.getPlayers().Count; j++)
{
if (sidePotWinners.Contains(j))
{
currentIndex = j;
players[j].CollectMoney(sidePots[i]);
}
}
}
}
//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;
}