private void CalculateEquity(List <EquityPlayer> players, Street street, BoardCards boardCards, HandHistories.Objects.Cards.Card[] dead, GeneralGameTypeEnum gameType, int potIndex)
{
var equitySolverParams = new EquitySolverParams
{
PlayersCards = players.Select(x => x.HoleCards).ToArray(),
BoardCards = boardCards.ToArray(),
Dead = dead,
GameType = gameType
};
var equity = CalculateEquity(equitySolverParams);
for (var i = 0; i < players.Count; i++)
{
players[i].Equity[potIndex] = (decimal)equity[i].Equity;
}
}
public EquitySolverResult[] CalculateEquity(EquitySolverParams equitySolverParams)
{
var cardsDelimeter = " ";
var gameTypeArg = equitySolverParams.GameType == GeneralGameTypeEnum.Holdem ? "-h" :
(equitySolverParams.GameType == GeneralGameTypeEnum.OmahaHiLo ? "-o8" : "-o");
var playerCardsArgs = string.Join(" - ", equitySolverParams.PlayersCards.Select(x => x.ToString(cardsDelimeter)).ToArray());
var boardCardsArgs = string.Join(cardsDelimeter, equitySolverParams.BoardCards.Select(x => x.ToString()));
var deadCardsArgs = string.Join(cardsDelimeter, equitySolverParams.Dead.Select(x => x.ToString()).ToArray());
// use monte-carlo simulation for omaha w/o board
var prefix = equitySolverParams.GameType != GeneralGameTypeEnum.Holdem && string.IsNullOrEmpty(boardCardsArgs) ? "p -mc 10000" : "p";
var argsLine = $"{prefix} {gameTypeArg} {playerCardsArgs}";
if (!string.IsNullOrEmpty(boardCardsArgs))
{
argsLine += $" -- {boardCardsArgs}";
}
if (!string.IsNullOrEmpty(deadCardsArgs))
{
argsLine += $" / {deadCardsArgs}";
}
var argv = argsLine.Split(' ');
CalculateEquity(argv.Length, argv, out CalculationResult result);
var equitySolverResults = new EquitySolverResult[equitySolverParams.PlayersCards.Length];
unsafe
{
for (var i = 0; i < equitySolverParams.PlayersCards.Length; i++)
{
equitySolverResults[i] = new EquitySolverResult
{
Equity = result.ev[i],
Wins = result.nwinhi[i] + result.nwinlo[i],
Loses = result.nlosehi[i] + result.nloselo[i],
Ties = result.ntiehi[i] + result.ntielo[i]
};
}
}
if (!equitySolverParams.CalculatePct)
{
return(equitySolverResults);
}
var sortedEquitySolverResults = equitySolverResults.OrderBy(x => x.Ties).ToList();
var totalCombinations = 0L;
var tempsTies = sortedEquitySolverResults.Select(x => x.Ties).ToArray();
var resultIndex = 0;
while (sortedEquitySolverResults.Count > 0)
{
var equitySolverResult = sortedEquitySolverResults.FirstOrDefault();
if (totalCombinations == 0)
{
totalCombinations = equitySolverResult.Loses + equitySolverResult.Ties + equitySolverResult.Wins;
}
tempsTies[resultIndex] = tempsTies[resultIndex] / sortedEquitySolverResults.Count;
equitySolverResult.TiesPct = totalCombinations != 0 ? (double)tempsTies[resultIndex] / totalCombinations : 0;
equitySolverResult.WinPct = totalCombinations != 0 ? (double)equitySolverResult.Wins / totalCombinations : 0;
sortedEquitySolverResults.Remove(equitySolverResult);
for (var i = resultIndex + 1; i < tempsTies.Length; i++)
{
tempsTies[i] -= tempsTies[resultIndex];
}
resultIndex++;
}
return(equitySolverResults);
}