// plays 1 round of poker
private string Round()
{
string text = ""; // result text
List <PlayerAction> actions = new List <PlayerAction>(); // list of actions
// reset the pot
if (pot % 2 == 0) // even numbered pot
{
pot = anteAmt; // pot with antes only
}
else // odd pot
{
// in this case, the pot was not an even number
// so there was 1 credit left over for the starting pot
// In theory this should never happen.
pot = anteAmt + 1;
}
// call players in order
Player[] playerOrder = new Player[2];
// note that playerOrder[1] always contains the dealer
if (p0.Dealer == true) // player 0 deals?
{
playerOrder[0] = p1; // p1 goes first
playerOrder[1] = p0;
}
else
{
playerOrder[0] = p0; // p0 goes first
playerOrder[1] = p1;
}
// setup deck for a new round
deck.NewRound();
// dealer deals out 5 cards to each player
playerOrder[0].Hand = deck.Deal(5);
playerOrder[1].Hand = deck.Deal(5);
// round 1 of betting - loop until both players check,
// one folds, or one calls
ResultWriter("Betting round 1:");
Boolean done = false; // flags when finished
do
{
PlayerAction pa0 = playerOrder[0].BettingRound1(actions, playerOrder[0].Hand);
bool valid = CheckAction("Bet1", actions, pa0);
if (valid == false)
{
ResultWriter(playerOrder[0].Name + " played a bad action of " + pa0.ActionName + " and forfeits the hand");
pa0 = new PlayerAction(pa0.Name, pa0.ActionPhase, "fold", 0);
}
actions.Add(pa0);
ResultWriter(pa0.ToString());
ResultWriter(" ");
// handle the case of the first player calling - the
// second player must also call - do this automatically
// and break out of the loop
if (pa0.ActionName == "call")
{
// add the second player's action automatically
PlayerAction pa1 = new PlayerAction(playerOrder[1].Name, "Bet1", "call", 0);
actions.Add(pa1);
break; // done betting
}
if (pa0.ActionName != "fold") // first player did not fold
{
PlayerAction pa1 = playerOrder[1].BettingRound1(actions, playerOrder[1].Hand);
valid = CheckAction("Bet1", actions, pa1);
if (valid == false)
{
ResultWriter(playerOrder[1].Name + " played a bad action of " + pa1.ActionName + " and forfeits the hand");
pa1 = new PlayerAction(pa1.Name, pa1.ActionPhase, "fold", 0);
}
actions.Add(pa1);
ResultWriter(pa1.ToString());
ResultWriter(" ");
}
done = EvaluateActions(actions, "Bet1");
} while (done == false);
// update the pot based on the bets
int lastBet = 0;
for (int i = 0; i < actions.Count; i++)
{
if (actions[i].ActionPhase == "Bet1")
{
switch (actions[i].ActionName)
{
case "bet":
lastBet = actions[i].Amount;
pot += lastBet; // adjust the pot
// deduct from player
if (actions[i].Name == playerOrder[0].Name) // player0 bet?
{
playerOrder[0].ChangeMoney(-lastBet);
}
else // must be player1
{
playerOrder[1].ChangeMoney(-lastBet);
}
break;
case "raise":
int total = lastBet; // amt from previous player
pot += lastBet; // player raising must match last bet
lastBet = actions[i].Amount;
total += lastBet; // amt being raised
pot += lastBet; // plus the amount raised
// deduct from player
if (actions[i].Name == playerOrder[0].Name) // player0 bet?
{
playerOrder[0].ChangeMoney(-total);
}
else // must be player1
{
playerOrder[1].ChangeMoney(-total);
}
break;
case "call":
// skip if this is a call after another call
if (i - 1 >= 0)
{
if (actions[i - 1].ActionName == "call")
{
break;
}
}
pot += lastBet; // match the last bet
// deduct from player
if (actions[i].Name == playerOrder[0].Name) // player0 bet?
{
playerOrder[0].ChangeMoney(-lastBet);
}
else // must be player1
{
playerOrder[1].ChangeMoney(-lastBet);
}
break;
}
}
}
ResultWriter("After Bet1, pot is " + pot);
ResultWriter(" ");
// see if someone folded
if (actions[actions.Count - 1].ActionName == "fold" &&
actions[actions.Count - 1].Name == playerOrder[1].Name)
{
// if the player in playerOrder[1] folded, other
// player gets the pot
playerOrder[0].ChangeMoney(pot);
string result = actions[actions.Count - 1].Name + " folded. Other player gets the pot of " + pot;
pot = 0; // clear the pot
return(result); // skip rest of loop
}
else if (actions[actions.Count - 1].ActionName == "fold" &&
actions[actions.Count - 1].Name == playerOrder[0].Name)
{
// if the player in playerOrder[1] folded, other
// player gets the pot
playerOrder[1].ChangeMoney(pot);
string result = actions[actions.Count - 1].Name + " folded. Other player gets the pot of " + pot;
pot = 0; // clear the pot
return(result); // skip rest of loop
}
// draw
for (int i = 0; i < playerOrder.Length; i++)
{
PlayerAction pa = playerOrder[i].Draw(playerOrder[i].Hand);
actions.Add(pa);
if (pa.Amount > 0)
{
Card[] newCards = deck.Deal(pa.Amount); // get cards
playerOrder[i].AddCards(playerOrder[i].Hand, newCards);
}
ResultWriter("Name: " + playerOrder[i].Name);
string handList = Evaluate.ListHand(playerOrder[i].Hand);
ResultWriter(handList);
ResultWriter(" ");
}
// round 2 of betting- loop until both players check,
// one folds, or one calls
ResultWriter("Betting round 2:");
done = false; // flags when finished
do
{
PlayerAction pa0 = playerOrder[0].BettingRound2(actions, playerOrder[0].Hand);
bool valid = CheckAction("Bet2", actions, pa0);
if (valid == false)
{
ResultWriter(playerOrder[0].Name + " played a bad action of " + pa0.ActionName + " and forfeits the hand");
pa0 = new PlayerAction(pa0.Name, pa0.ActionPhase, "fold", 0);
}
actions.Add(pa0);
ResultWriter(pa0.ToString());
ResultWriter(" ");
// handle the case of the first player calling - the
// second player must also call - do this automatically
// and break out of the loop
if (pa0.ActionName == "call")
{
// add the second player's action automatically
PlayerAction pa1 = new PlayerAction(playerOrder[1].Name, "Bet2", "call", 0);
actions.Add(pa1);
break; // done betting
}
if (pa0.ActionName != "fold") // first player did not fold
{
PlayerAction pa1 = playerOrder[1].BettingRound2(actions, playerOrder[1].Hand);
valid = CheckAction("Bet2", actions, pa1);
if (valid == false)
{
ResultWriter(playerOrder[1].Name + " played a bad action of " + pa1.ActionName + " and forfeits the hand");
pa1 = new PlayerAction(pa1.Name, pa1.ActionPhase, "fold", 0);
}
actions.Add(pa1);
ResultWriter(pa1.ToString());
ResultWriter(" ");
}
done = EvaluateActions(actions, "Bet2");
} while (done == false);
// update the pot based on the bets
lastBet = 0;
for (int i = 0; i < actions.Count; i++)
{
if (actions[i].ActionPhase == "Bet2")
{
switch (actions[i].ActionName)
{
case "bet":
lastBet = actions[i].Amount;
pot += lastBet; // adjust the pot
// deduct from player
if (actions[i].Name == playerOrder[0].Name) // player0 bet?
{
playerOrder[0].ChangeMoney(-lastBet);
}
else // must be player1
{
playerOrder[1].ChangeMoney(-lastBet);
}
break;
case "raise":
int total = lastBet; // amt from previous player
pot += lastBet; // player raising must match last bet
lastBet = actions[i].Amount;
total += lastBet; // amt being raised
pot += lastBet; // plus the amount raised
// deduct from player
if (actions[i].Name == playerOrder[0].Name) // player0 bet?
{
playerOrder[0].ChangeMoney(-total);
}
else // must be player1
{
playerOrder[1].ChangeMoney(-total);
}
break;
case "call":
// skip if this is a call after another call
if (i - 1 >= 0)
{
if (actions[i - 1].ActionName == "call")
{
break;
}
}
pot += lastBet; // match the last bet
// deduct from player
if (actions[i].Name == playerOrder[0].Name) // player0 bet?
{
playerOrder[0].ChangeMoney(-lastBet);
}
else // must be player1
{
playerOrder[1].ChangeMoney(-lastBet);
}
break;
}
}
}
ResultWriter("After Bet2, pot is " + pot);
ResultWriter(" ");
// see if someone folded
if (actions[actions.Count - 1].ActionName == "fold" &&
actions[actions.Count - 1].Name == playerOrder[1].Name)
{
// if the player in playerOrder[1] folded, other
// player gets the pot
playerOrder[0].ChangeMoney(pot);
string result = actions[actions.Count - 1].Name + " folded. Other player gets the pot of " + pot;
pot = 0; // clear the pot
return(result); // skip rest of loop
}
else if (actions[actions.Count - 1].ActionName == "fold" &&
actions[actions.Count - 1].Name == playerOrder[0].Name)
{
// if the player in playerOrder[1] folded, other
// player gets the pot
playerOrder[1].ChangeMoney(pot);
string result = actions[actions.Count - 1].Name + " folded. Other player gets the pot of " + pot;
pot = 0; // clear the pot
return(result); // skip rest of loop
}
// round resolution
// see if there is a clear winner based on hand strength
Card highCard = null;
int p0Rank = Evaluate.RateAHand(playerOrder[0].Hand, out highCard);
int p1Rank = Evaluate.RateAHand(playerOrder[1].Hand, out highCard);
if (p0Rank > p1Rank)
{
text = playerOrder[0].Name + " has a better hand and wins " + pot;
playerOrder[0].ChangeMoney(pot);
pot = 0;
}
else if (p1Rank > p0Rank)
{
text = playerOrder[1].Name + " has a better hand and wins " + pot;
playerOrder[1].ChangeMoney(pot);
pot = 0;
}
else // same rank - needs further examination
{
// sort both hands
Evaluate.SortHand(playerOrder[0].Hand);
Card[] hand0 = playerOrder[0].Hand;
Evaluate.SortHand(playerOrder[1].Hand);
Card[] hand1 = playerOrder[1].Hand;
switch (p0Rank)
{
case 1: // high card
for (int i = 4; i >= 0; i--)
{
if (hand0[i].Value != hand1[i].Value)
{
if (hand0[i].Value > hand1[i].Value)
{
text = playerOrder[0].Name + " has a better hand and wins " + pot;
playerOrder[0].ChangeMoney(pot);
pot = 0;
}
else if (hand1[i].Value > hand0[i].Value)
{
text = playerOrder[1].Name + " has a better hand and wins " + pot;
playerOrder[1].ChangeMoney(pot);
pot = 0;
}
}
}
// could be a tie
if (pot != 0)
{
playerOrder[0].ChangeMoney(pot / 2);
playerOrder[1].ChangeMoney(pot / 2);
text = "Tie, each player gets " + pot / 2;
if (pot % 2 != 0)
{
pot = 1;
}
else
{
pot = 0;
}
}
break;
case 2: // one pair
// get the pair for playerOrder[0]
int p0Pair = 0;
for (int j = 14; j >= 2; j--)
{
int count = Evaluate.ValueCount(j, hand0);
if (count == 2) // found the pair
{
p0Pair = j;
break;
}
}
// do the same for the other hand
int p1Pair = 0;
for (int k = 14; k >= 2; k--)
{
int count = Evaluate.ValueCount(k, hand1);
if (count == 2) // found the pair
{
p1Pair = k;
break;
}
}
// which is higher
if (p0Pair > p1Pair) // playerOrder[0] wins
{
text = playerOrder[0].Name + " has a better hand and wins " + pot;
playerOrder[0].ChangeMoney(pot);
}
else if (p1Pair > p0Pair)
{
text = playerOrder[1].Name + " has a better hand and wins " + pot;
playerOrder[1].ChangeMoney(pot);
}
else
{ // need to see what the high
// card is aside from the pair
// get the cards that are not part of a pair from hand0
Card[] h0NotPair = new Card[3];
int pos = 0;
for (int i = 0; i < hand0.Length; i++)
{
if (hand0[i].Value != p0Pair)
{
h0NotPair[pos] = hand0[i];
pos++;
}
}
// do the same for the next hand
Card[] h1NotPair = new Card[3];
pos = 0;
for (int i = 0; i < hand1.Length; i++)
{
if (hand1[i].Value != p1Pair)
{
h1NotPair[pos] = hand1[i];
pos++;
}
}
// see if high card breakes the tie
for (int i = 2; i >= 0; i--)
{
if (h0NotPair[i].Value != h1NotPair[i].Value)
{
if (h0NotPair[i].Value > h1NotPair[i].Value)
{
text = playerOrder[0].Name + " has a better hand and wins " + pot;
playerOrder[0].ChangeMoney(pot);
pot = 0;
}
else if (h1NotPair[i].Value > h0NotPair[i].Value)
{
text = playerOrder[1].Name + " has a better hand and wins " + pot;
playerOrder[1].ChangeMoney(pot);
pot = 0;
}
}
}
// could be a tie
if (pot != 0)
{
playerOrder[0].ChangeMoney(pot / 2);
playerOrder[1].ChangeMoney(pot / 2);
text = "Tie, each player gets " + pot / 2;
if (pot % 2 != 0)
{
pot = 1;
}
else
{
pot = 0;
}
}
}
break;
case 3: // two pair
// get the two pair
int[] h0Pair = new int[2];
int[] h1Pair = new int[2];
// get hand0 pairs
int pCount = 0;
for (int i = 14; i >= 2; i--)
{
int count = Evaluate.ValueCount(i, hand0);
if (count == 2) // found the pair
{
h0Pair[pCount] = i;
pCount++;
}
}
// get the hand1 pairs
pCount = 0;
for (int i = 14; i >= 2; i--)
{
int count = Evaluate.ValueCount(i, hand1);
if (count == 2) // found the pair
{
h1Pair[pCount] = i;
pCount++;
}
}
// compare the pairs
if (h0Pair[0] > h1Pair[0]) // playerOrder[0] wins
{
text = playerOrder[0].Name + " has a better hand and wins " + pot;
playerOrder[0].ChangeMoney(pot);
}
else if (h1Pair[0] > h0Pair[0]) // playerOrder[1] wins
{
text = playerOrder[1].Name + " has a better hand and wins " + pot;
playerOrder[1].ChangeMoney(pot);
pot = 0;
}
else // tie on the highest pair
{
// compare the second pair
if (h0Pair[1] > h1Pair[1]) // playerOrder[0] wins
{
text = playerOrder[0].Name + " has a better hand and wins " + pot;
playerOrder[0].ChangeMoney(pot);
pot = 0;
}
else if (h1Pair[0] > h0Pair[0]) // playerOrder[1] wins
{
text = playerOrder[1].Name + " has a better hand and wins " + pot;
playerOrder[1].ChangeMoney(pot);
pot = 0;
}
else // tie on the highest pair
{
playerOrder[0].ChangeMoney(pot / 2);
playerOrder[1].ChangeMoney(pot / 2);
text = "Tie, each player gets " + pot / 2;
// tie overall
if (pot % 2 != 0)
{
pot = 1;
}
else
{
pot = 0;
}
}
}
break;
case 4: // three of a kind
// get the pair for playerOrder[0]
int p0Three = 0;
for (int j = 14; j >= 2; j--)
{
int count = Evaluate.ValueCount(j, hand0);
if (count == 3) // found the pair
{
p0Three = j;
break;
}
}
// do the same for the other hand
int p1Three = 0;
for (int k = 14; k >= 2; k--)
{
int count = Evaluate.ValueCount(k, hand1);
if (count == 3) // found the three cards
{
p1Three = k;
break;
}
}
// which is higher - no possibility of a tie
if (p0Three > p1Three) // playerOrder[0] wins
{
text = playerOrder[0].Name + " has a better hand and wins " + pot;
playerOrder[0].ChangeMoney(pot);
}
else
{
text = playerOrder[1].Name + " has a better hand and wins " + pot;
playerOrder[1].ChangeMoney(pot);
}
pot = 0;
break;
case 5: // straight
// compare the top card - if one is higher than the other, that
// player is the winner. Otherwise, there is a tie
if (hand0[0].Value > hand1[0].Value)
{
text = playerOrder[0].Name + " has a better hand and wins " + pot;
playerOrder[0].ChangeMoney(pot);
pot = 0;
}
else if (hand1[0].Value > hand0[0].Value)
{
text = playerOrder[1].Name + " has a better hand and wins " + pot;
playerOrder[1].ChangeMoney(pot);
pot = 0;
}
else // tie
{
playerOrder[0].ChangeMoney(pot / 2);
playerOrder[1].ChangeMoney(pot / 2);
text = "Tie, each player gets " + pot / 2;
if (pot % 2 != 0)
{
pot = 1;
}
else
{
pot = 0;
}
}
break;
case 6: // flush
// locate the high cards and keep testing until you
// either have a tie or a winner
// tie flag
Boolean tie = true;
for (int i = 4; i >= 0; i--)
{
if (hand0[i].Value != hand1[i].Value)
{
// determine the winner
if (hand0[i].Value > hand1[i].Value)
{
text = playerOrder[0].Name + " has a better hand and wins " + pot;
playerOrder[0].ChangeMoney(pot);
pot = 0;
}
else
{
text = playerOrder[1].Name + " has a better hand and wins " + pot;
playerOrder[1].ChangeMoney(pot);
pot = 0;
}
// not a tie
tie = false;
break; // exit loop
}
}
// handle a tie
if (tie == true)
{
playerOrder[0].ChangeMoney(pot / 2);
playerOrder[1].ChangeMoney(pot / 2);
text = "Tie, each player gets " + pot / 2;
if (pot % 2 != 0)
{
pot = 1;
}
else
{
pot = 0;
}
}
break;
case 7: // full house
// get the two pair
int h0FH = 0;
int h1FH = 0;
// get hand0 triple
for (int i = 14; i >= 2; i--)
{
int count = Evaluate.ValueCount(i, hand0);
if (count == 3) // found the triple
{
h0FH = i;
}
}
// get the hand1 triple
for (int i = 14; i >= 2; i--)
{
int count = Evaluate.ValueCount(i, hand1);
if (count == 3) // found the triple
{
h1FH = i;
}
}
// compare the triples
if (h0FH > h1FH) // playerOrder[0] wins
{
text = playerOrder[0].Name + " has a better hand and wins " + pot;
playerOrder[0].ChangeMoney(pot);
}
else // playerOrder[1] wins
{
text = playerOrder[1].Name + " has a better hand and wins " + pot;
playerOrder[1].ChangeMoney(pot);
}
pot = 0;
break;
case 8: // four of a kind
// get the pair for playerOrder[0]
int p0Four = 0;
for (int j = 14; j >= 2; j--)
{
int count = Evaluate.ValueCount(j, hand0);
if (count == 4) // found the 4 cards
{
p0Four = j;
break;
}
}
// do the same for the other hand
int p1Four = 0;
for (int k = 14; k >= 2; k--)
{
int count = Evaluate.ValueCount(k, hand1);
if (count == 4) // found the pair
{
p1Four = k;
break;
}
}
// which is higher - no possible tie
if (p0Four > p1Four) // playerOrder[0] wins
{
text = playerOrder[0].Name + " has a better hand and wins " + pot;
playerOrder[0].ChangeMoney(pot);
}
else
{
text = playerOrder[1].Name + " has a better hand and wins " + pot;
playerOrder[1].ChangeMoney(pot);
}
pot = 0;
break;
case 9: // straight flush
// compare the top card - if one is higher than the other, that
// player is the winner. Otherwise, there is a tie
if (hand0[4].Value > hand1[4].Value)
{
text = playerOrder[0].Name + " has a better hand and wins " + pot;
playerOrder[0].ChangeMoney(pot);
pot = 0;
}
else if (hand1[4].Value > hand0[4].Value)
{
text = playerOrder[1].Name + " has a better hand and wins " + pot;
playerOrder[1].ChangeMoney(pot);
pot = 0;
}
else // tie
{
playerOrder[0].ChangeMoney(pot / 2);
playerOrder[1].ChangeMoney(pot / 2);
text = "Tie, each player gets " + pot / 2;
if (pot % 2 == 0)
{
pot = 1;
}
else
{
pot = 0;
}
}
break;
case 10: // royal flush
// automatic tie - split the pot
playerOrder[0].ChangeMoney(pot / 2);
playerOrder[1].ChangeMoney(pot / 2);
text = "Tie, each player gets " + pot / 2;
if (pot % 2 != 0)
{
pot = 1;
}
else
{
pot = 0;
}
break;
}
}
// return results
return(text);
}