// Function: bkw_DoWork
// Runs the BlackJack game
private void bkw_DoWork(object sender, DoWorkEventArgs e)
{
// create a shoe of cards containing 7 decks
shoe = new CardStack(7);
// shuffle the shoe
shoe.Shuffle();
// create dealer's hand
CardStack dealerCards = new CardStack();
// loop until cancelled
while (!bkw.CancellationPending)
{
// if shoe contains 52 cards or less, then reset the shoe to 7 decks
if (shoe.Count() <= 52)
{
// reset (refill with cards)
shoe.Reset();
// shuffle cards
shoe.Shuffle();
}
// update server GUI
UpdateCardsLeft(shoe.Count());
// create copy of current player list so that it doesn't change during the round
List <Player> thisRoundPlayers = new List <Player>(playerList);
foreach (Player serverPlayer in thisRoundPlayers)
{
if (!serverPlayer.isPlaying)
{
playerList.Remove(serverPlayer);
}
}
// if no players, then stop the game
if (playerList.Count == 0)
{
return;
}
// create copy of current player list so that it doesn't change during the round
thisRoundPlayers = new List <Player>(playerList);
// get each player's bet
foreach (Player serverPlayer in thisRoundPlayers)
{
if (serverPlayer.GetMoney() <= 0)
{
serverPlayer.OutOfMoney();
DisconnectPlayer(serverPlayer);
continue;
}
// ask for player's bet
serverPlayer.AskForBet();
string[] playerMessage;
try
{
// split the message to parse it
playerMessage = serverPlayer.Read().Split(":".ToCharArray());
}
catch
{
// remove them from the lists
if (playerList.Contains(serverPlayer))
{
playerList.Remove(serverPlayer);
}
// mark player as not playing
serverPlayer.isPlaying = false;
// update status to disconnected
SetPlayerStatus(serverPlayer.GetPlayerNum(), "Disconnected");
// go to next player
continue;
}
// if disconnected
if (playerMessage[0] == "disconnect")
{
// disconnected them
DisconnectPlayer(serverPlayer);
// go to next player
continue;
}
// get bet from the player
if (playerMessage[0] != "bet")
{
throw new Exception("expected a bet.");
}
int bet;
// parse the second part of message for bet amount
if (!int.TryParse(playerMessage[1], out bet))
{
throw new Exception("expected a number for the bet.");
}
// clear their hand
serverPlayer.ClearCards();
try
{
// place the bet
PlayerBet(serverPlayer, bet);
}
catch
{
// disconnect them
DisconnectPlayer(serverPlayer);
// go to next player
continue;
}
}
// give each player first card
foreach (Player serverPlayer in thisRoundPlayers)
{
// give them the card
GivePlayerCard(serverPlayer, shoe.DrawCard());
// update server GUI
UpdateCardsLeft(shoe.Count());
}
// give each player 2nd card and, if they hit, other cards
foreach (Player serverPlayer in thisRoundPlayers)
{
string playerMessage = "";
do
{
// give them a card
GivePlayerCard(serverPlayer, shoe.DrawCard());
// update cards left server GUI
UpdateCardsLeft(shoe.Count());
// stop if busted
if (serverPlayer.GetPoints() >= 21)
{
break;
}
// ask for hit or stand
serverPlayer.AskHitOrStand();
try
{
// get their response
playerMessage = serverPlayer.Read();
}
catch
{
// disconnected player
DisconnectPlayer(serverPlayer);
// go to next player
continue;
}
// while they hit, haven't busted, and have less than 5 cards: keep dealing them cards
} while (playerMessage == "hit" && serverPlayer.GetPoints() <= 21 && serverPlayer.GetCards().Count() < 5);
// check if they busted
if (serverPlayer.GetPoints() > 21)
{
serverPlayer.Bust();
}
// if disconnect message
else if (playerMessage == "disconnect")
{
// disconnect them
DisconnectPlayer(serverPlayer);
}
// check if they gave a bad response
else if (playerMessage != "stand" && playerMessage != "hit" && playerMessage != "" && playerMessage != null)
{
throw new Exception("expected hit, stand, or disconnect response");
}
}
// check if all players busted
bool allBusted = true;
foreach (Player serverPlayer in thisRoundPlayers)
{
allBusted = allBusted && serverPlayer.IsBusted();
}
// If all players busted, the hand ends automatically without the dealer having to play their hand
if (allBusted)
{
foreach (Player serverPlayer in thisRoundPlayers)
{
theServer.SendAll(serverPlayer.GetPlayerNum() + ":lost");
}
// clear each player's hand
foreach (Player serverPlayer in thisRoundPlayers)
{
serverPlayer.Clear();
ClearCardList(serverPlayer.GetPlayerNum());
}
// clear dealer's hand
dealerCards.Clear();
ClearCardList(-100);
// end this round
theServer.SendAll("roundover");
continue;
}
// if not all players busted:
// give dealer first card
Card drawnCard = shoe.DrawCard();
dealerCards.Add(drawnCard);
// update cards left label
UpdateCardsLeft(shoe.Count());
// send card to clients
theServer.SendAll("dealer:card:" + drawnCard.GetSymbol() + ":" + drawnCard.GetSuit());
// give dealer second card, and hit while points < 17
do
{
// draw card from the shoe
drawnCard = shoe.DrawCard();
// add the card to dealer's hand
dealerCards.Add(drawnCard);
// send the card to clients
theServer.SendAll("dealer:card:" + drawnCard.GetSymbol() + ":" + drawnCard.GetSuit());
// update server GUI
AddCardToList(listBox_Dealer, drawnCard);
UpdateCardsLeft(shoe.Count());
} while (dealerCards.GetPoints() < 17);
// check if dealer busted
bool dealerBusted = !(dealerCards.GetPoints() <= 21);
// check for winners
foreach (Player serverPlayer in thisRoundPlayers)
{
// if player got blackjack and dealer did not, then 3 to 2 bet return
if ((serverPlayer.GetCards().Count == 2) && (serverPlayer.GetPoints() == 21) && ((dealerCards.GetPoints() != 21) || dealerBusted))
{
// calculate new amount of money
int newMoney = serverPlayer.GetMoney() + serverPlayer.GetBet() + (3 / 2) * serverPlayer.GetBet();
// set player's bet to 0
PlayerBet(serverPlayer, 0);
// update gui and send money to clients
UpdatePlayerMoney(serverPlayer, newMoney);
// send clients message that this player won with a "blackjack"
theServer.SendAll(serverPlayer.GetPlayerNum() + ":blackjack");
}
// if dealer busted and player did not, or neither busted but player got more points, then 1 to 1 bet return
else if ((dealerBusted || (serverPlayer.GetPoints() > dealerCards.GetPoints())) && !serverPlayer.IsBusted())
{
// calculate new amount of money
int newMoney = serverPlayer.GetMoney() + 2 * serverPlayer.GetBet();
// set player's bet to 0
PlayerBet(serverPlayer, 0);
// update gui and send money to clients
UpdatePlayerMoney(serverPlayer, newMoney);
// send clients message that this player won
theServer.SendAll(serverPlayer.GetPlayerNum() + ":won");
}
// if tied (push), then just return bet
else if ((dealerCards.GetPoints() <= 21) && (serverPlayer.GetPoints() == dealerCards.GetPoints()))
{
// calculate new amount of money
int newMoney = serverPlayer.GetMoney() + serverPlayer.GetBet();
// set player's bet to 0
PlayerBet(serverPlayer, 0);
// update gui and send money to clients
UpdatePlayerMoney(serverPlayer, newMoney);
// send clients message that this player pushed
theServer.SendAll(serverPlayer.GetPlayerNum() + ":push");
}
// otherwise, player lost their bet
else
{
// set player's bet to 0
PlayerBet(serverPlayer, 0);
// send clients message that this player lost
theServer.SendAll(serverPlayer.GetPlayerNum() + ":lost");
}
}
// clear each player's hand
foreach (Player serverPlayer in thisRoundPlayers)
{
serverPlayer.Clear();
ClearCardList(serverPlayer.GetPlayerNum());
}
// clear dealer's hand
dealerCards.Clear();
ClearCardList(-100);
// send round over message
theServer.SendAll("roundover");
}
}