private void playSeat(int seatIndex) {
Seat seat = this.seats.get(seatIndex);
for (int i = 0; i < seat.hands.size(); i++) {
CardsAndBet hand = seat.hands.get(i);
if (i == 0 && HandUtilities.blackjack(hand.cards())) {
hand.setResult(Result.PLAYER_BLACKJACK);
} else {
List<PlayerAction> allowedActions =
new ArrayList<PlayerAction>(Arrays.asList(PlayerAction.values()));
if (hand.cards().size() == 1) // hand is result of splitting
{
if (hand.cards().get(0).value() == Value.ACE) // hand is result of splitting aces
{
allowedActions.remove(PlayerAction.HIT);
allowedActions.remove(PlayerAction.DOUBLE);
}
allowedActions.remove(PlayerAction.SURRENDER);
hand.dealCardTo(dealFaceUpCard());
}
if (i != 0 || hand.cards().size() != 2) allowedActions.remove(PlayerAction.SURRENDER);
if (hand.cards().size() != 2
|| seat.hands.size() == 7
|| // 7 hands means 4 valid hands (rest are sources of splits)
(hand.cards().get(0).value().numericValue()
!= hand.cards().get(1).value().numericValue()))
allowedActions.remove(PlayerAction.SPLIT);
// TODO: player should not be asked to make a decision if split hand is 21
// TODO: why does this only happen in the observer, not the basic player when just playing?
if (HandUtilities.value(hand.cards()) == HandUtilities.MAX_VALUE) allowedActions.clear();
while (allowedActions.size() >= 2) // player still has at least 1 decision to make
{
ArrayList<PlayerAction> allowedActionsCopy = new ArrayList<PlayerAction>(allowedActions);
PlayerAction action =
seat.player.act(hand.cards(), this.dealerHand.get(0), allowedActionsCopy);
if (!allowedActions.contains(action))
throw new IllegalActionException(
seat.player.id() + " attempted to " + action + " when not allowed.");
for (BlackjackObserver observer : this.observers)
observer.decision(
seatIndex, hand.cards(), this.dealerHand.get(0), allowedActionsCopy, action);
allowedActions.clear();
switch (action) {
case HIT:
hand.dealCardTo(dealFaceUpCard());
if (HandUtilities.value(hand.cards()) < HandUtilities.MAX_VALUE) {
allowedActions.add(PlayerAction.HIT);
allowedActions.add(PlayerAction.STAND);
}
break;
case DOUBLE:
hand.dealCardTo(dealFaceUpCard());
hand.doubleBet();
break;
case STAND:
break;
case SURRENDER:
hand.setResult(Result.SURRENDER);
break;
case SPLIT:
List<Card> cards = hand.cards();
hand.setResult(Result.SOURCE_OF_SPLIT);
seat.hands.add(i + 1, new CardsAndBet(hand.bet()));
seat.hands.get(i + 1).dealCardTo(cards.get(0));
seat.hands.add(i + 2, new CardsAndBet(hand.bet()));
seat.hands.get(i + 2).dealCardTo(cards.get(1));
break;
}
}
if (!hand.isDone() && HandUtilities.bust(hand.cards())) hand.setResult(Result.DEALER_WIN);
}
}
}
