/** @return true - if the game can be continued, false if the game has ended. */
public boolean playRound() {
if (result != null) {
return false;
}
round++;
try {
/*
* if it's the first round, turn over the top card; otherwise, turn over the number of cards shown by the top
* turned-over card
*/
if (round == 1) {
topCard = deck.draw();
} else {
List<Card> drawn = deck.draw(getTopCardValue());
topCard = drawn.get(drawn.size() - 1);
}
} catch (DeckExhaustedException e) {
result = LOSE;
return false;
}
if (deck.isEmpty()) {
result = WIN;
return false;
}
return true;
}
public DoorsGame(Deck deck, CardValuePolicy valuePolicy) {
if (deck == null) {
throw new NullPointerException("Deck arg cannot be null.");
}
if (valuePolicy == null) {
throw new NullPointerException("CardValuePolicy arg cannot be null.");
}
if (deck.isEmpty()) {
throw new IllegalArgumentException("Cannot play with an empty deck.");
}
this.deck = deck;
this.valuePolicy = valuePolicy;
}