def random_player(state: None, log: List[NamedTuple], hands: List[List[Card]],
rules: Rules, tokens: Tokens, slots: List[int],
discard_pile: List[List[int]]) -> Tuple[None, Move, str]:
"""
Tsvika and Ofer's random player
Usage:
h = Hanabi([random_player] * 3)
"""
my_id = len(log) % len(hands)
possible_actions = []
if tokens.lives > 1:
possible_actions.append(Play)
if tokens.clues > 0:
possible_actions.append(Clue)
if tokens.clues < rules.max_tokens.clues:
possible_actions.append(Discard)
action = random.choice(possible_actions)
if action == Play:
return state, Play.create(random.choice(hands[my_id]).id), ''
if action == Discard:
return state, Discard.create(random.choice(hands[my_id]).id), ''
if action == Clue:
player = random.choice([i for i in range(len(hands)) if i != my_id])
clue_type = random.choice(['suit', 'rank'])
return state, Clue.create(
player, clue_type,
getattr(random.choice(hands[player]).data, clue_type)), ''
def io_player(state: None, log: List[NamedTuple], hands: List[List[Card]],
rules: Rules, tokens: Tokens, slots: List[int],
discard_pile: List[List[int]]) -> Tuple[None, Move, str]:
print(f"{name}'s turn")
pprint(log[-len(hands):])
pprint(hands)
pprint(tokens)
pprint(slots)
pprint(discard_pile)
print('What will it be?')
print('[c]lue <player><type><n>\t\t[p]lay <card>\t\t[d]iscard <card>')
move = input().split()
try:
if move[0] == 'c':
_, (player, clue_type, param) = move
return state, Clue.create(int(player), {
's': 'suit',
'n': 'rank'
}[clue_type], {
's': Suit,
'n': Rank
}[clue_type].from_str(param)), ''
elif move[0] == 'p':
_, card_id = move
return state, Play.create(int(card_id)), ''
elif move[0] == 'd':
_, card_id = move
return state, Discard.create(int(card_id)), ''
else:
raise ValueError("not a valid move type")
except (ValueError, KeyError):
print('illegal move')
return io_player(state, log, hands, rules, tokens, slots,
discard_pile)
def naive2_player(state: None, log: List[NamedTuple], hands: List[List[Card]],
rules: Rules, tokens: Tokens, slots: List[int],
discard_pile: List[List[int]]) -> Tuple[None, NamedTuple]:
"""
Zvika and Ofer's naive player
"""
my_id = len(log) % len(hands)
my_card_ids = [card.id for card in hands[my_id]]
hinted_cards = set()
for move in log[-len(hands):]:
if isinstance(move, ResolvedClue):
if move.player == my_id:
hinted_cards = hinted_cards.union(card.id
for card in move.cards)
# Its better to play than hint
if hinted_cards:
play_card = max(hinted_cards)
return state, Play.create(play_card), ''
# Its better to hint than discard
if tokens.clues > 0:
for i in range(len(hands) - 1):
player = (my_id + i + 1) % len(hands)
player_suits = set([card.data.suit for card in hands[player]])
player_ranks = set([card.data.rank for card in hands[player]])
playable_suits = set()
playable_ranks = set()
for suit in player_suits:
card = max(
[card for card in hands[player] if card.data.suit == suit])
if slots[card.data.suit] == card.data.rank:
playable_suits.add(card.data.suit)
for rank in player_ranks:
card = max(
[card for card in hands[player] if card.data.rank == rank])
if slots[card.data.suit] == card.data.rank:
playable_ranks.add(card.data.rank)
# its better to go up then sideways
clue = None
clue_rank = 0
if playable_ranks:
clue = Clue.create(player, 'rank', max(playable_ranks))
clue_rank = max(player_ranks)
for suit in playable_suits:
if slots[suit] > clue_rank:
clue = Clue.create(player, 'suit', suit)
clue_rank = slots[suit]
if clue:
return state, clue, ''
# Its better to discard then playing like an idiot
if tokens.clues < rules.max_tokens.clues:
return state, Discard.create(min(my_card_ids)), ''
# If all else fails, play like an idiot
return state, Play.create(max(my_card_ids)), 'idiot'
def naive_player(log: List[NamedTuple], hands: List[List[Card]], rules: Rules,
tokens: Tokens, slots: List[int],
discard_pile: List[List[int]]) -> Tuple:
"""
Zvika and Ofer's naive player
"""
my_id = len(log) % len(hands)
my_card_ids = [card.id for card in hands[my_id]]
hinted_cards = set()
for move in log[-len(hands):]:
if isinstance(move, ResolvedClue) and move.player == my_id:
hinted_cards = hinted_cards.union(card.id for card in move.cards)
# Its better to play than hint
if hinted_cards:
play_card = max(hinted_cards)
return Play.create(play_card), 'Play hinted card'
# Its better to hint than discard
if tokens.clues > 0:
for i in range(len(hands) - 1):
player = (my_id + i + 1) % len(hands)
player_suits = set([card.data.suit for card in hands[player]])
player_ranks = set([card.data.rank for card in hands[player]])
for card in hands[player]:
if slots[card.data.suit] != card.data.rank:
player_suits -= set([card.data.suit])
player_ranks -= set([card.data.rank])
if player_ranks:
# its better to go up then sideways
return Clue.create(
player, 'rank',
max(player_ranks)), 'Given actionable rank clue'
if player_suits:
return Clue.create(
player, 'suit',
player_suits.pop()), 'Given actionable suit clue'
# Its better to discard then playing like an idiot
if tokens.clues < rules.max_tokens.clues:
return Discard.create(min(my_card_ids)), 'Discard oldest card'
# If all else fails, play like an idiot
return Play.create(max(my_card_ids)), 'Play like an idiot'
def humanlike_player(state, log, hands, rules, tokens, slots, discard_pile):
"""
Ofer's humanlike player
"""
def add_card_to_state(given_state, card_id):
if card_id not in given_state:
given_state[card_id] = CardInfo(
Info(None, None),
Info([True for _ in range(rules.suits)], [True for _ in rules.ranks])
)
def update_cards(cards, player_id=None, clue=None):
if player_id is None:
player_id = my_id
hinted_cards = set()
_log = log[-len(hands):]
if clue is not None:
_log.append(clue)
for move in _log:
if isinstance(move, ResolvedClue):
if move.player == player_id:
for card in move.cards:
hinted_cards.add(card.id)
card_ids_in_hint = set()
for card in move.cards:
add_card_to_state(cards, card.id)
card_ids_in_hint.add(card.id)
cards[card.id] = cards[card.id]._replace(positive=cards[card.id].positive._replace(**{move.type: move.param}))
for card in hands[player_id]:
if card.id not in card_ids_in_hint:
add_card_to_state(cards, card.id)
new_negative = getattr(cards[card.id].negative, move.type)
new_negative[move.param] = False
cards[card.id] = cards[card.id]._replace(negative=cards[card.id].negative._replace(**{move.type: new_negative}))
# Consolidate negatives in hand
for card_id in hinted_cards:
if cards[card_id].negative.suit.count(True) == 1:
cards[card.id]._replace(positive=cards[card.id].positive._replace(
suit=[i for i, v in enumerate(cards[card_id].negative.suit) if v]))
if cards[card_id].negative.rank.count(True) == 1:
cards[card.id]._replace(positive=cards[card.id].positive._replace(
rank=[i for i, v in enumerate(cards[card_id].negative.rank) if v]))
return cards, hinted_cards
def get_max_rank_in_suit(suit, _slots, _discard_pile):
max_rank_in_suit = None
for rank in range(len(rules.ranks)):
left_in_rank = rules.ranks[rank] - _discard_pile[suit][rank]
if rank >= _slots[suit] and left_in_rank == 0:
max_rank_in_suit = rank
break
return max_rank_in_suit
def is_playable_suit(suit, _slots, _discard_pile):
if _slots[suit] > len(rules.ranks):
return False
max_rank_in_suit = get_max_rank_in_suit(suit, _slots, _discard_pile)
if max_rank_in_suit is not None and max_rank_in_suit < _slots[suit]:
return False
return True
def should_play_card(cards, cards_in_hand, hinted_cards, _slots=None, _discard_pile=None):
if _slots is None:
_slots = slots
if _discard_pile is None:
_discard_pile = discard_pile
hinted_cards = hinted_cards.intersection(cards_in_hand)
definate_cards_to_play = set()
cards_to_play = set()
for card_id in cards_in_hand:
add_card_to_state(cards, card_id)
if cards[card_id].positive.suit is not None and cards[card_id].positive.rank is not None:
if is_play_legal(cards[card_id].positive.suit, cards[card_id].positive.rank, _slots):
definate_cards_to_play.add(card_id)
if card_id in sorted(hinted_cards):
if cards[card_id].positive.rank is not None and cards[card_id].positive.suit is None and any(
[is_playable_suit(suit, _slots, _discard_pile) and cards[card_id].positive.rank == _slots[suit]
for suit in range(len(_slots))]):
cards_to_play.add(card_id)
if cards[card_id].positive.suit is not None and cards[card_id].positive.rank is None \
and is_playable_suit(cards[card_id].positive.suit, _slots, _discard_pile):
cards_to_play.add(card_id)
if definate_cards_to_play: # its better to go up than go sideways!
highest_rank = 0
cards_in_highest_rank = set()
for card_id in definate_cards_to_play:
if cards[card_id].positive.rank > highest_rank:
highest_rank = cards[card_id].positive.rank
cards_in_highest_rank = set()
if cards[card_id].positive.rank == highest_rank:
cards_in_highest_rank.add(card_id)
return sorted(cards_in_highest_rank)[-1] # play newest card
if cards_to_play:
return sorted(cards_to_play)[-1] # play newest card
return None
def what_will_player_play(cards, hand, player_id, clue, _slots, _discard_pile):
cards, _hinted_cards = update_cards(cards, player_id, clue)
card_id = should_play_card(cards, [card.id for card in hand], _hinted_cards, _slots, _discard_pile)
if card_id is not None:
card = [card for card in hand if card.id == card_id][0]
legal = is_play_legal(card.data.suit, card.data.rank, _slots)
return cards, legal, card_id
else:
return cards, None, None
def is_play_legal(suit, rank, _slots):
return _slots[suit] == rank
def create_clue(my_id, _player, type, param):
cards = [card for card in hands[_player] if getattr(card.data, type) == param]
cards_neg = [card for card in hands[_player] if getattr(card.data, type) != param]
return ResolvedClue.create(my_id, _player, type, param, cards, cards_neg)
# Start
if state is None:
state = {}
my_id = len(log) % len(hands)
state, state_actions = update_cards(state)
my_card_ids = [card.id for card in hands[my_id]]
card_to_play = should_play_card(state, my_card_ids, state_actions, slots, discard_pile)
if card_to_play is not None: # Its better to play than hint
return state, Play.create(card_to_play), 'Played card'
if tokens.clues > 0: # Its better to hint than discard
foreseen_slots = list(slots)
foreseen_state = dict(state)
for i in range(len(hands) - 1):
player = (my_id + i + 1) % len(hands)
foreseen_state, is_legal, play = what_will_player_play(
foreseen_state, hands[player], player, None, foreseen_slots, discard_pile)
player_state, player_hinted = update_cards(foreseen_state, player)
player_play = should_play_card(state, [card.id for card in hands[player]], player_hinted)
if player_play is not None:
card = [card for card in hands[player] if card.id == player_play][0]
if is_play_legal(card.data.suit, card.data.rank, slots):
foreseen_slots[card.data.suit] = card.data.rank
continue
else: # try and rectify stupidity
for card in hands[player]:
suit_clue = create_clue(my_id, player, 'suit', card.data.suit)
_, is_legal, play = what_will_player_play(
dict(foreseen_state), hands[player], player, suit_clue, foreseen_slots, discard_pile)
if is_legal or play is None:
return state, Clue.create(player, 'suit', card.data.suit), 'Gave hint against stupid play'
rank_clue = create_clue(my_id, player, 'rank', card.data.rank)
_, is_legal, play = what_will_player_play(
dict(foreseen_state), hands[player], player, rank_clue, foreseen_slots, discard_pile)
if is_legal or play is None:
return state, Clue.create(player, 'rank', card.data.rank), 'Gave hint against stupid play'
good_clues = set()
for card in hands[player]:
if slots[card.data.suit] == card.data.rank:
suit_clue = create_clue(my_id, player, 'suit', card.data.suit)
_, is_legal, play = what_will_player_play(
dict(foreseen_state), hands[player], player, suit_clue, foreseen_slots, discard_pile)
if is_legal and play == card.id:
good_clues.add(PossibleClue(player=player, card=card, type='suit'))
rank_clue = create_clue(my_id, player, 'rank', card.data.rank)
_, is_legal, play = what_will_player_play(
dict(foreseen_state), hands[player], player, rank_clue, foreseen_slots, discard_pile)
if is_legal and play == card.id:
good_clues.add(PossibleClue(player=player, card=card, type='rank'))
if good_clues:
# make sure highest card possible is played
highest_rank = 0
given_clue = None
for clue in good_clues:
if given_clue is None:
given_clue = clue
if clue.card.data.rank > highest_rank:
highest_rank = clue.card.data.rank
given_clue = clue
return state, Clue.create(given_clue.player, given_clue.type, getattr(given_clue.card.data, given_clue.type)), 'Gave actionable clue'
if tokens.clues < rules.max_tokens.clues: # Its better to discard then playing like an idiot
protected_cards = set()
for card_id in my_card_ids:
# Throw away useless cards
if state[card_id].positive.suit is not None and not is_playable_suit(state[card_id].positive.suit, slots, discard_pile):
return state, Discard.create(card_id), 'Discarded unplayable suit'
if state[card_id].positive.rank is not None and all([slot<state[card_id].positive.rank for slot in slots]):
return state, Discard.create(card_id), 'Discarded Unplayable rank'
if state[card_id].positive.suit is not None and state[card_id].positive.rank is not None:
if slots[state[card_id].positive.suit] < state[card_id].positive.rank:
return state, Discard.create(card_id), 'Discarded unplayable known card'
# Don't throw away lone copies
avaiable_copies = rules.ranks[state[card_id].positive.rank]
discarded_copies = discard_pile[state[card_id].positive.suit][state[card_id].positive.rank]
if avaiable_copies - discarded_copies == 1:
protected_cards.add(card_id)
# Don't throw away 5s
if state[card_id].positive.rank is not None:
avaiable_copies = rules.ranks[state[card_id].positive.rank]
if avaiable_copies == 1:
protected_cards.add(card_id)
throwaways = set(my_card_ids) - protected_cards
if throwaways:
return state, Discard.create(min(throwaways)), 'Discarded unprotected card'
return state, Discard.create(min(my_card_ids)), 'Discarded oldest card'
if tokens.clues > 0:
# give random clue to the player playing before you so the other players may fix it
player = (my_id -1) % len(hands)
if hands[player]:
highest_rank_in_hand = sorted([card.data.rank for card in hands[player]])[-1]
return state, Clue.create(player, 'rank', highest_rank_in_hand), 'Gave random clue'
# If all else fails, play like an idiot
return state, Play.create(max(my_card_ids)), 'Played random card'
def oracle_player(log: List[NamedTuple], hands: List[List[Card]],
rules: Rules, tokens: Tokens, slots: List[int],
discard_pile: List[List[int]]) -> Tuple:
"""
Zvika and Ofer's oracle player
"""
my_id = len(log) % len(hands)
my_hand = hands[my_id]
if my_hand[0].data is None:
raise RuntimeError("I need to be omniscient")
# play something playable
playable_card = None
for card in my_hand:
if slots[card.data.suit] == card.data.rank:
if playable_card is None or playable_card.data.rank < card.data.rank:
playable_card = card
if playable_card is not None:
return Play.create(playable_card.id), 'playable'
def get_card_to_discard():
# discard already played
for card in my_hand:
if slots[card.data.suit] > card.data.rank:
return card.id, 'low'
# discard unreachable
for suit in range(rules.suits):
max_rank_in_suit = None
for rank in range(len(rules.ranks)):
left_in_rank = rules.ranks[rank] - discard_pile[suit][rank]
if rank >= slots[suit] and left_in_rank == 0:
max_rank_in_suit = rank
break
if max_rank_in_suit:
for card in my_hand:
if card.data.suit == suit and card.data.rank > max_rank_in_suit:
return card.id, 'high'
# discard duplicates in own hand
knowns = [card.data for card in my_hand]
if len(set(knowns)) < len(knowns):
for i, known in enumerate(knowns):
for known2 in knowns[i+1:]:
if known == known2:
return my_hand[i].id, 'dup'
# discard duplicates with others
knowns = [card.data for card in my_hand]
for hand in hands[:my_id]+hands[my_id+1:]:
knowns2 = [card.data for card in hand]
if len(set(knowns+knowns2)) < len(knowns)+len(set(knowns2)):
for i, known in enumerate(knowns):
for known2 in knowns2:
if known == known2:
return my_hand[i].id, 'dup2'
return None, ''
# discard something discardable
if tokens.clues < rules.max_tokens.clues:
card, note = get_card_to_discard()
if card is not None:
return Discard.create(card), 'pass/d/' + note
# nothing useful to do
# try to pass with useless clue
if tokens.clues > 0:
player = (my_id + 1) % len(hands)
if hands[player]:
return Clue.create(player, 'suit', hands[player][0].data.suit), 'pass/c'
# try to pass with false play
if tokens.lives > 1:
card, note = get_card_to_discard()
if card is not None:
return Play.create(card), 'pass/p/' + note
# you have to throw something useful. try the farthest from the suit
# look for an expandable card
diff = None
throw = None
for card in my_hand:
card_diff = card.data.rank - slots[card.data.suit]
if diff is None or card_diff > diff:
if rules.ranks[card.data.rank] - discard_pile[card.data.suit][card.data.rank] > 1:
diff = card_diff
throw = card
note = ''
# look for a non expandable card, if you must (BOO!)
if diff is None:
note = '/bad'
for card in my_hand:
card_diff = card.data.rank - slots[card.data.suit]
if diff is None or card_diff > diff:
diff = card_diff
throw = card
# throw by discard
if tokens.clues < rules.max_tokens.clues:
return Discard.create(throw.id), 'throw/d' + note
# throw by false play
return Play.create(throw.id), 'throw/p' + note
def naive2_with_2nd_degree_player(log: List[NamedTuple],
hands: List[List[Card]], rules: Rules,
tokens: Tokens, slots: List[int],
discard_pile: List[List[int]]) -> Tuple:
"""
Zvika and Ofer's naive player
Improved with 2nd degree clues by Ofer
This player only gives 2nd degree clues to the next player
"""
def relative_position(player_id):
return (player_id - my_id) % len(hands)
def is_playable(card):
return slots[card.data.suit] == card.data.rank
my_id = len(log) % len(hands)
my_card_ids = [card.id for card in hands[my_id]]
hinted_cards = set()
for move in log[-len(hands):]:
if isinstance(move, ResolvedClue):
if move.player == my_id:
hinted_cards = hinted_cards.union(card.id
for card in move.cards)
# Its better to play than hint
if hinted_cards:
play_card = max(hinted_cards)
return Play.create(play_card), 'Play hinted card'
# Play 2nd degree clues
for move in log[-len(hands) + 1:]:
if isinstance(move, ResolvedClue):
if relative_position(move.cur_player) > relative_position(
move.player):
hinted_card = max([card.id for card in move.cards])
known_card = [
card for card in hands[move.player]
if card.id == hinted_card
][0]
if slots[known_card.data.suit] == known_card.data.rank - 1:
return Play.create(
max(my_card_ids)), 'play 2nd degree clue'
# Its better to hint than discard
if tokens.clues > 0:
# If possible give 2nd degree clue
hintable_card = hands[(my_id + 1) % len(hands)][-1]
if is_playable(hintable_card):
player_id = (my_id + 2) % len(hands)
for card in hands[player_id]:
if card.data.suit == hintable_card.data.suit and card.data.rank == hintable_card.data.rank + 1:
# suit clue
if max([card.id for card in hands[player_id] if card.data.suit == hintable_card.data.suit])\
== card.id:
return Clue.create(
player_id, 'suit',
card.data.suit), 'give 2nd degree suit clue'
# rank clue
if max([card.id for card in hands[player_id] if card.data.rank == hintable_card.data.rank+1])\
== card.id:
return Clue.create(
player_id, 'rank',
card.data.rank), 'give 2nd degree rank clue'
# Give regular clue
for i in range(len(hands) - 1):
player = (my_id + i + 1) % len(hands)
player_suits = set([card.data.suit for card in hands[player]])
player_ranks = set([card.data.rank for card in hands[player]])
playable_suits = set()
playable_ranks = set()
for suit in player_suits:
card = max(
[card for card in hands[player] if card.data.suit == suit])
if slots[card.data.suit] == card.data.rank:
playable_suits.add(card.data.suit)
for rank in player_ranks:
card = max(
[card for card in hands[player] if card.data.rank == rank])
if slots[card.data.suit] == card.data.rank:
playable_ranks.add(card.data.rank)
# its better to go up then sideways
clue = None
clue_rank = 0
if playable_ranks:
clue = Clue.create(player, 'rank', max(playable_ranks))
clue_rank = max(player_ranks)
for suit in playable_suits:
if slots[suit] > clue_rank:
clue = Clue.create(player, 'suit', suit)
clue_rank = slots[suit] + 1
if clue:
return clue, 'Given actionable clue'
# Its better to discard then playing like an idiot
if tokens.clues < rules.max_tokens.clues:
return Discard.create(min(my_card_ids)), 'Discard oldest card'
# If all else fails, play like an idiot
return Play.create(max(my_card_ids)), 'Play like an idiot'