vector<Equity> Evaluator::evalHoldemHands(const vector<CardSet>& hands,
const CardSet& board,
const CardSet& dead) {
size_t numPlayers = hands.size();
vector<Equity> equities(numPlayers);
vector<bool> isUsed(Card::MAX_ID + 1);
bool IsValidGame = board.IsValid() && dead.IsValid();
for (auto hand : hands) {
IsValidGame &= hand.IsValid(2);
for (auto card : hand.ToCards()) {
IsValidGame &= !isUsed[card.id()];
isUsed[card.id()] = true;
}
}
for (auto card : board.ToCards()) {
IsValidGame &= !isUsed[card.id()];
isUsed[card.id()] = true;
}
for (auto card : dead.ToCards()) {
IsValidGame &= !isUsed[card.id()];
isUsed[card.id()] = true;
}
if (!IsValidGame) {
return equities;
}
vector<int> ranks(numPlayers);
vector<int> starts(5, 1);
vector<int> ends(5, Card::MAX_ID);
for (size_t i = 0; i < board.ToCards().size(); ++i) {
starts[i] = ends[i] = board.ToCards()[i].id();
}
for (int h0 = starts[0]; h0 <= ends[0]; ++h0) {
if (board.ToCards().empty() && isUsed[h0]) {
continue;
}
if (board.ToCards().empty()) {
isUsed[h0] = true;
starts[1] = h0 + 1;
}
int r0 = handRanks[h0 + Card::MAX_ID + 1];
for (int h1 = starts[1]; h1 <= ends[1]; ++h1) {
if (board.ToCards().size() <= 1 && isUsed[h1]) {
continue;
}
if (board.ToCards().size() <= 1) {
isUsed[h1] = true;
starts[2] = h1 + 1;
}
int r1 = handRanks[h1 + r0];
for (int h2 = starts[2]; h2 <= ends[2]; ++h2) {
if (board.ToCards().size() <= 2 && isUsed[h2]) {
continue;
}
if (board.ToCards().size() <= 2) {
isUsed[h2] = true;
starts[3] = h2 + 1;
}
int r2 = handRanks[h2 + r1];
for (int h3 = starts[3]; h3 <= ends[3]; ++h3) {
if (board.ToCards().size() <= 3 && isUsed[h3]) {
continue;
}
if (board.ToCards().size() <= 3) {
isUsed[h3] = true;
starts[4] = h3 + 1;
}
int r3 = handRanks[h3 + r2];
for (int h4 = starts[4]; h4 <= ends[4]; ++h4) {
if (board.ToCards().size() <= 4 && isUsed[h4]) {
continue;
}
int r4 = handRanks[h4 + r3];
int maxRank = -1;
int numBestPlayers = 0;
for (size_t i = 0; i < numPlayers; ++i) {
ranks[i] = r4;
for (auto card : hands[i].ToCards()) {
ranks[i] = handRanks[ranks[i] + card.id()];
}
if (maxRank == ranks[i]) {
++numBestPlayers;
} else if (maxRank < ranks[i]) {
maxRank = ranks[i];
numBestPlayers = 1;
}
}
for (size_t i = 0; i < numPlayers; ++i) {
if (ranks[i] == maxRank) {
equities[i].addTie(numBestPlayers);
} else {
equities[i].addLose();
}
}
}
if (board.ToCards().size() <= 3) {
isUsed[h3] = false;
}
}
if (board.ToCards().size() <= 2) {
isUsed[h2] = false;
}
}
if (board.ToCards().size() <= 1) {
isUsed[h1] = false;
}
}
if (board.ToCards().empty()) {
isUsed[h0] = false;
}
}
return equities;
}
vector<Equity> Evaluator::evalOmahaHands(const vector<CardSet>& hands,
const CardSet& board,
const CardSet& dead) {
size_t numPlayers = hands.size();
vector<Equity> equities(numPlayers);
vector<bool> isUsed(Card::MAX_ID + 1);
bool IsValidGame = board.IsValid() && dead.IsValid();
for (auto hand : hands) {
IsValidGame &= hand.IsValid(2);
for (auto card : hand.ToCards()) {
IsValidGame &= !isUsed[card.id()];
isUsed[card.id()] = true;
}
}
for (auto card : board.ToCards()) {
IsValidGame &= !isUsed[card.id()];
isUsed[card.id()] = true;
}
for (auto card : dead.ToCards()) {
IsValidGame &= !isUsed[card.id()];
isUsed[card.id()] = true;
}
if (!IsValidGame) {
return equities;
}
vector<int> ranks(numPlayers);
vector<int> starts(5, 1);
vector<int> ends(5, Card::MAX_ID);
for (size_t i = 0; i < board.ToCards().size(); ++i) {
starts[i] = ends[i] = board.ToCards()[i].id();
}
for (int h0 = starts[0]; h0 <= ends[0]; ++h0) {
if (board.ToCards().size() <= 0 && isUsed[h0]) {
continue;
}
if (board.ToCards().size() <= 0) {
isUsed[h0] = true;
starts[1] = h0 + 1;
}
for (int h1 = starts[1]; h1 <= ends[1]; ++h1) {
if (board.ToCards().size() <= 1 && isUsed[h1]) {
continue;
}
if (board.ToCards().size() <= 1) {
isUsed[h1] = true;
starts[2] = h1 + 1;
}
for (int h2 = starts[2]; h2 <= ends[2]; ++h2) {
if (board.ToCards().size() <= 2 && isUsed[h2]) {
continue;
}
if (board.ToCards().size() <= 2) {
isUsed[h2] = true;
starts[3] = h2 + 1;
}
for (int h3 = starts[3]; h3 <= ends[3]; ++h3) {
if (board.ToCards().size() <= 3 && isUsed[h3]) {
continue;
}
if (board.ToCards().size() <= 3) {
isUsed[h3] = true;
starts[4] = h3 + 1;
}
for (int h4 = starts[4]; h4 <= ends[4]; ++h4) {
if (board.ToCards().size() <= 4 && isUsed[h4]) {
continue;
}
int maxRank = -1;
int numBestPlayers = 0;
array<int, 5> currentBoard = {{h0, h1, h2, h3, h4}};
for (size_t i = 0; i < numPlayers; ++i) {
size_t numCards = hands[i].ToCards().size();
for (size_t b0 = 0; b0 < 5; ++b0) {
for (size_t b1 = b0 + 1; b1 < 5; ++b1) {
for (size_t b2 = b1 + 1; b2 < 5; ++b2) {
for (size_t p0 = 0; p0 < numCards; ++p0) {
for (size_t p1 = p0 + 1; p1 < numCards; ++p1) {
array<int, 5> currentHand = {
{currentBoard[b0], currentBoard[b1],
currentBoard[b2],
static_cast<int>(hands[i].ToCards()[p0].id()),
static_cast<int>(hands[i].ToCards()[p1].id())}};
int currentRank = Card::MAX_ID + 1;
for (size_t hand : currentHand) {
currentRank = handRanks[currentRank + hand];
}
currentRank = handRanks[currentRank];
ranks[i] = max(ranks[i], currentRank);
}
}
}
}
}
if (maxRank == ranks[i]) {
++numBestPlayers;
} else if (maxRank < ranks[i]) {
maxRank = ranks[i];
numBestPlayers = 1;
}
}
for (size_t i = 0; i < numPlayers; ++i) {
if (ranks[i] == maxRank) {
equities[i].addTie(numBestPlayers);
} else {
equities[i].addLose();
}
}
}
if (board.ToCards().size() <= 3) {
isUsed[h3] = false;
}
}
if (board.ToCards().size() <= 2) {
isUsed[h2] = false;
}
}
if (board.ToCards().size() <= 1) {
isUsed[h1] = false;
}
}
if (board.ToCards().size() <= 0) {
isUsed[h0] = false;
}
}
return equities;
}
