def step(self, action):
''' Perform one draw of the game
Args:
action (str): specific action of doudizhu. Eg: '33344'
Returns:
dict: next player's state
int: next player's id
'''
if self.allow_step_back:
# TODO: don't record game.round, game.players, game.judger if allow_step_back not set
pass
# perfrom action
player = self.players[self.round.current_player]
self.round.proceed_round(player, action)
if (action != 'pass'):
self.judger.calc_playable_cards(player)
if self.judger.judge_game(self.players, self.round.current_player):
self.winner_id = self.round.current_player
next_id = get_downstream_player_id(player, self.players)
self.round.current_player = next_id
# get next state
state = self.get_state(next_id)
self.state = state
return state, next_id
def _get_others_current_hand(self, player):
player_up = self.players[get_upstream_player_id(player, self.players)]
player_down = self.players[get_downstream_player_id(
player, self.players)]
others_hand = merge(player_up.current_hand,
player_down.current_hand,
key=functools.cmp_to_key(doudizhu_sort_card))
return cards2str(others_hand)
