public EvalResult evaluateHand(List<Card> hand)
{
List<int> cardValues = getIntCardValues(hand);
Dictionary<int, int> cardValueCounts = getCardValueCounts(cardValues);
Dictionary<int, int> cardSuitCounts = getCardSuitCounts(hand);
// create a new result with high card 2, hand result of a high card (no special sets found)
EvalResult result = new EvalResult(2, HIGH_CARD);
// find the value of the high card
result.setHighCard(findHighCard(hand));
// check for four of a kind
Boolean fourOfAKind = hasCountCards(cardValueCounts, 4);
// check for three of a kind
Boolean threeOfAKind = hasCountCards(cardValueCounts, 3);
// check for one pair
Boolean onePair = hasCountCards(cardValueCounts, 2);
// check for full house (three of a kind + two of a kind)
Boolean fullHouse = threeOfAKind && onePair;
// check for flush
Boolean flush = hasFlush(cardSuitCounts);
// check for straight
Boolean straight = hasStraight(cardValues);
// check for a stright flush
Boolean straightFlush = straight && flush;
// check for two pair
Boolean twoPair = hasTwoPair(cardValueCounts);
if (straightFlush)
result.setHandValue(STRAIGHT_FLUSH);
else if (fourOfAKind)
result.setHandValue(FOUR_OF_A_KIND);
else if (fullHouse)
result.setHandValue(FULL_HOUSE);
else if (flush)
result.setHandValue(FLUSH);
else if (straight)
result.setHandValue(STRAIGHT);
else if (threeOfAKind)
result.setHandValue(THREE_OF_A_KIND);
else if (twoPair)
result.setHandValue(TWO_PAIR);
else if (onePair)
result.setHandValue(ONE_PAIR);
return result;
}
/// <summary>
/// choose a move to preform after the river card has been shown
/// </summary>
public Move postRiverAction()
{
List<Card> fiveCardHand = new List<Card>();
fiveCardHand.AddRange(playerHand);
currentHandValue = handEval.evaluateHand(fiveCardHand);
List<Card> boardCards = new List<Card>();
for (int i = 2; i < playerHand.Count; i++)
{
boardCards.Add(playerHand[i]);
}
EvalResult boardValue = handEval.evaluateHand(boardCards);
//If theres a huge difference between the strength of my hand + board and just the board, we generally have a strong hand
//For example if the best hand on the board is a pair, and my best with my hand is a pair, we have the same evaluation and its likely that other players do aswell
if (currentHandValue.getHandValue() >= boardValue.getHandValue())
{
int evalDifference = currentHandValue.getHandValue() - boardValue.getHandValue();
Boolean canRaise = false;
Boolean canCall = false;
int raiseAmount = 1;
int callAmount = 1;
int highestChips = 0;
// check which player in the list has the highest chips
// the list of players will contain all other players still in the hand, excluding ourself
foreach (Player player in players)
{
if (player.getChipCount() > highestChips)
highestChips = player.getChipCount();
}
if (highestChips == 0)
{
highestChips = 1;
}
// check if we are allowed to raise or call this turn
// if we can, retrieve the minimum amounts associated with these actions
foreach (Move move in possibleMoves)
{
if (move is Raise)
{
raiseAmount = ((Raise)move).getMinimumRaise();
canRaise = true;
}
else if (move is Call)
{
callAmount = ((Call)move).getCallAmount();
canCall = true;
}
}
if (evalDifference >= 3)//significant strength compared to board, bully opponent
{
if (getChipCount() / highestChips > .75)
{
// we can try to bully the opponents
// bet 10% of our chips
raiseAmount += Convert.ToInt32(getChipCount() * .1);
Raise moveChoice = new Raise(raiseAmount);
moveChoice.setRaiseAmount(raiseAmount);
return moveChoice;
}
// otherwise call or check depending on the call amount
if (!canCall)
return new Check();
else
{
// if the call amount is less than 10% of our chips, then
if (getChipCount() / callAmount > 20)
{
return new Call(callAmount);
}
else
return new Fold();
}
}
else if (evalDifference > 0)//moderate strength
{
// if we are unable to call then we can check for free
if (!canCall)
{
return new Check();
}
// if the call is a small percentage of our chips then make it
else if (canCall && getChipCount() / callAmount < .05)
{
return new Call(callAmount);
}
else
{
return new Fold();
}
}
else //our hand strength is basically that of whats on the board i.e. not strong
{
// check if possible. if not then fold
if (!canCall)
return new Check();
// checking is not an option, fold
return new Fold();
}
}
else
{
//I dont think its possible a board value alone is stronger than (board + hand value) ever..
return null;
}
// Now we know what our best hand is and know that another player either has a good hand or is bluffing since in almost all hands that get here we plan to bet(excluding the possible case were our hand is bad and we keep checkin)
// again we will use isOurHandLiklyBetterThanAnyOtherPlayers to determine if our hand is better and we will bet accordingly
// here we must again consider bluffing and our aggression level based on relative chip count(our compared to the players at the table
}
/// <summary>
/// determines what to do in any round of betting between the flop and the turn
/// may need hand/ possible actions(moves) as a param/s
/// will return a move that we want to preform
/// </summary>
public Move postFlopAction()
{
List<Card> fiveCardHand = new List<Card>();
fiveCardHand.AddRange(playerHand);
currentHandValue = handEval.evaluateHand(fiveCardHand);
List<Card> boardCards = new List<Card>();
Boolean likelyToImproveHand = false;
for(int i = 2; i < playerHand.Count; i++)
{
boardCards.Add(playerHand[i]);
}
EvalResult boardValue = handEval.evaluateHand(boardCards);
//If theres a huge difference between the strength of my hand + board and just the board, we generally have a strong hand
//For example if the best hand on the board is a pair, and my best with my hand is a pair, we have the same evaluation and its likely that other players do aswell
if(currentHandValue.getHandValue() >= boardValue.getHandValue())
{
int likelyNextHandValue = getMostLikelyNextHandValue();
if(likelyNextHandValue > currentHandValue.getHandValue())//if we are likely to get a good hand value
{
likelyToImproveHand = true; //this will be used to skew the evalutationDifference
}
int evalDifference = currentHandValue.getHandValue() - boardValue.getHandValue();
if(likelyToImproveHand)//if we are likely to improve our hand, up the difference by 1
{
evalDifference++;
}
Boolean canRaise = false;
Boolean canCall = false;
int raiseAmount = 1;
int callAmount = 1;
int highestChips = 0;
// check which player in the list has the highest chips
// the list of players will contain all other players still in the hand, excluding ourself
foreach (Player player in players)
{
if (player.getChipCount() > highestChips)
highestChips = player.getChipCount();
}
if (highestChips == 0)
{
highestChips = 1;
}
// check if we are allowed to raise or call this turn
// if we can, retrieve the minimum amounts associated with these actions
foreach (Move move in possibleMoves)
{
if (move is Raise)
{
raiseAmount = ((Raise)move).getMinimumRaise();
canRaise = true;
}
else if (move is Call)
{
callAmount = ((Call)move).getCallAmount();
canCall = true;
}
}
if (evalDifference >= 3)//significant strength compared to board, bully opponent
{
if ((getChipCount() / highestChips) > .60)
{
// we can try to bully the opponents
// bet a base of 10% of our chips
// hand strength is up to 8, add up to handStrength% of chips: 8 = 18% of our chips
raiseAmount += Convert.ToInt32(getChipCount() * (.1 + (((double)currentHandValue.getHandValue())/100)));
Raise moveChoice = new Raise(raiseAmount);
moveChoice.setRaiseAmount(raiseAmount);
return moveChoice;
}
// otherwise call or check depending on the call amount
if (!canCall)
return new Check();
else
{
// if the call amount is less than 10% of our chips, then
if (( callAmount / getChipCount()) > .10)
{
return new Call(callAmount);
}
else
return new Fold();
}
}
else if(evalDifference > 0)//moderate strength
{
// if we are unable to call then we can check for free
if (!canCall)
{
return new Check();
}
// if the call is a small percentage of our chips then make it
else if (canCall && (callAmount / getChipCount()) > .05)
{
return new Call(callAmount);
}
else
{
return new Fold();
}
}
else //our hand strength is basically that of whats on the board i.e. not strong
{
// check if possible. if not then fold
if (!canCall)
return new Check();
// checking is not an option, fold
return new Fold();
}
}
else
{
//I dont think its possible a board value alone is stronger than (board + hand value) ever..
return null; // again this should really never be reached
}
// at this point we have a good idea of what our hand is going to be or can possibly be
// have a logic block that determines what move to make based on the returns from the 2 methods below
// may also consider if the player(s) are prone to bluffing
// may act different based on number of chip or an aggression attribute
// learning could affect the action taken
}