def play_trick(self, leading_index, trick_nr):
"""
Simulate a single trick.
leading_index contains the index of the player that must begin.
"""
player_index = leading_index
trick = []
are_hearts_broken = self.are_hearts_broken()
for _ in range(4):
player = self.players[player_index]
player_hand = self._player_hands[player_index]
played_card = player.play_card(player_hand, trick, trick_nr,
are_hearts_broken)
if not is_card_valid(player_hand, trick, played_card, trick_nr,
are_hearts_broken):
raise ValueError(
'Player {} ({}) played an invalid card {} to the trick {}.'
.format(player_index,
type(player).__name__, played_card, trick))
trick.append(played_card)
self._player_hands[player_index].remove(played_card)
player_index = (player_index + 1) % 4
for player in self.players:
player.see_played_trick(trick, trick_nr)
winning_index = self.winning_index(trick)
winning_player_index = (leading_index + winning_index) % 4
self.say('Player {} won the trick {}.', winning_player_index, trick)
self._cards_taken[winning_player_index].extend(trick)
return winning_player_index
def step(self, played_card=None):
player_hand = self._player_hands[self.current_player_idx]
if played_card is None:
played_card = self.players[self.current_player_idx].play_card(self)
if not is_card_valid(player_hand, self.trick, played_card,
self.trick_nr, self.is_heart_broken):
raise ValueError('Player {} ({}) played an invalid card {} to the trick {}.'.format(\
self.current_player_idx, type(self.players[self.current_player_idx]).__name__, played_card, self.trick))
if played_card not in self._player_hands[self.current_player_idx]:
raise ValueError("Not found {} card in this Player-{} hand cards({})".format(\
played_card, self.current_player_idx, self._player_hands[self.current_player_idx]))
self._player_hands[self.current_player_idx].remove(played_card)
self.trick.append(played_card)
for i in range(4):
self.players[i].see_played_trick(played_card, self)
for idx, card in zip(range(4, 0, -1), self.trick[::-1]):
player_idx = (self.current_player_idx + idx) % 4
self.trick_cards[self.trick_nr][player_idx] = card
self.current_player_idx = (self.current_player_idx + 1) % 4
if len(self.trick) == 4:
self.round_over()
def play_card(self, hand, trick, trick_nr, are_hearts_broken):
# Lead with a low card
if not trick:
hand.sort(key=lambda card:
100 if not are_hearts_broken and card.suit == Suit.hearts else
card.rank.value)
return hand[0]
hand.sort(key=self.undesirability, reverse=True)
self.say('Hand: {}', hand)
self.say('Trick so far: {}', trick)
# Safe cards are cards which will not result in winning the trick
leading_suit = trick[0].suit
max_rank_in_leading_suit = max([card.rank for card in trick
if card.suit == leading_suit])
valid_cards = [card for card in hand
if is_card_valid(hand, trick, card, trick_nr, are_hearts_broken)]
safe_cards = [card for card in valid_cards
if card.suit != leading_suit or card.rank <= max_rank_in_leading_suit]
self.say('Valid cards: {}', valid_cards)
self.say('Safe cards: {}', safe_cards)
try:
return safe_cards[0]
except IndexError:
queen_of_spades = Card(Suit.spades, Rank.queen)
# Don't try to take a trick by laying the queen of spades
if valid_cards[0] == queen_of_spades and len(valid_cards) > 1:
return valid_cards[1]
else:
return valid_cards[0]
def play_trick(self, leading_index, trick_nr):
"""
Simulate a single trick.
leading_index contains the index of the player that must begin.
"""
player_index = leading_index
trick = []
are_hearts_broken = self.are_hearts_broken()
for _ in range(4):
player = self.players[player_index]
player_hand = self._player_hands[player_index]
played_card = player.play_card(player_hand, trick, trick_nr, are_hearts_broken)
if not is_card_valid(player_hand, trick, played_card, trick_nr, are_hearts_broken):
raise ValueError('Player {} ({}) played an invalid card {} to the trick {}.'
.format(player_index, type(player).__name__, played_card, trick))
trick.append(played_card)
self._player_hands[player_index].remove(played_card)
player_index = (player_index + 1) % 4
for player in self.players:
player.see_played_trick(trick, trick_nr)
winning_index = self.winning_index(trick)
winning_player_index = (leading_index + winning_index) % 4
self.say('Player {} won the trick {}.', winning_player_index, trick)
self._cards_taken[winning_player_index].extend(trick)
return winning_player_index
def play_card(self, hand, trick, trick_nr, are_hearts_broken):
# Play first card that is valid
for card in hand:
if is_card_valid(hand, trick, card, trick_nr, are_hearts_broken):
return card
raise AssertionError(
'Apparently there is no valid card that can be played. This should not happen.'
)
def play_card(self, hand, trick, trick_nr, are_hearts_broken):
# Play first card that is valid
for card in hand:
if is_card_valid(hand, trick, card, trick_nr, are_hearts_broken):
return card
raise AssertionError(
'Apparently there is no valid card that can be played. This should not happen.'
)
def get_valid_cards(self, hand, game):
cards = [
card for card in hand if is_card_valid(
hand, game.trick, card, game.trick_nr, game.is_heart_broken)
]
cards.sort(key=lambda x: self.undesirability(x, game.take_pig_card),
reverse=(True if game.trick else False))
return cards
def play_card(self, game):
hand = game._player_hands[game.current_player_idx]
# Play first card that is valid
shuffle(hand)
for card in hand:
if is_card_valid(hand, game.trick, card, game.trick_nr,
game.is_heart_broken):
return card
game.verbose = True
game.print_game_status()
raise AssertionError(
'Apparently there is no valid card that can be played. This should not happen.'
)
def step(self, played_card=None):
hand_cards = self._player_hands[self.current_player_idx]
if played_card is None:
played_card, results = self.players[
self.current_player_idx].play_card(
self, simulation_time_limit=self.simulation_time_limit)
if not is_card_valid(hand_cards, self.trick, played_card,
self.trick_nr, self.is_heart_broken):
raise ValueError('{} round - Player {} ({}) played an invalid card {}({}) to the trick {}.'.format(\
self.trick_nr, self.current_player_idx, type(self.players[self.current_player_idx]).__name__, played_card, hand_cards, self.trick))
if played_card not in self._player_hands[self.current_player_idx]:
raise ValueError("{} round - Not found {} card in this Player-{} hand cards({})".format(\
self.trick_nr, played_card, self.current_player_idx, self._player_hands[self.current_player_idx]))
possible_cards = [[], [], [], []]
possible_cards[self.current_player_idx] = hand_cards
for player_idx, info in self.players[
self.current_player_idx].void_info.items():
if player_idx != self.current_player_idx:
possible_cards[player_idx] = self.players[
self.current_player_idx].get_remaining_cards(hand_cards)[:]
for suit, is_void in sorted(info.items(), key=lambda x: x[0]):
if is_void:
for card in possible_cards[player_idx][:]:
if card.suit == suit:
possible_cards[player_idx].remove(card)
#print("try to remove {} card from player-{}, current_suit is {}, {}".format(\
# card, player_idx, suit, info))
for player_idx, cards in self.players[
self.current_player_idx].transfer_cards.items():
for idx in range(len(possible_cards)):
if idx != player_idx:
for card in cards:
if card in possible_cards[idx]:
possible_cards[idx].remove(card)
trick_cards = self.trick
valid_cards, probs = [], [0] * 52
for card, prob in results:
valid_cards.append(card)
probs[card2v(card)] = prob
probs = log_softmax(probs)
leading_cards = len(self.trick) == 0
expose_cards = self.expose_info
self._short_memory.append([
self.current_player_idx, self.trick_cards, self.score_cards,
possible_cards, trick_cards, valid_cards, leading_cards,
expose_cards, probs, None
])
if IS_DEBUG:
print_a_memory(self._short_memory[-1])
self._player_hands[self.current_player_idx].remove(played_card)
self.trick.append(played_card)
if len(self.trick) == 4:
for idx, card in zip(range(4, 0, -1), self.trick[::-1]):
player_idx = (self.current_player_idx + idx) % 4
self.trick_cards[self.trick_nr][player_idx] = card
for i in range(4):
self.players[i].see_played_trick(played_card, self)
self.current_player_idx = (self.current_player_idx + 1) % 4
if len(self.trick) == 4:
self.round_over()