def discard_tile(self, tiles, closed_hand, melds, print_log=True):
selected_tile = self.choose_tile_to_discard(
tiles,
closed_hand,
melds,
print_log=print_log
)
# bot think that there is a threat on the table
# and better to fold
# if we can't find safe tiles, let's continue to build our hand
if self.ai.defence.should_go_to_defence_mode(selected_tile):
if not self.ai.in_defence:
DecisionsLogger.debug(log.DEFENCE_ACTIVATE)
self.ai.in_defence = True
defence_tile = self.ai.defence.try_to_find_safe_tile_to_discard()
if defence_tile:
return self.process_discard_option(defence_tile, closed_hand)
else:
if self.ai.in_defence:
DecisionsLogger.debug(log.DEFENCE_DEACTIVATE)
self.ai.in_defence = False
return self.process_discard_option(selected_tile, closed_hand, print_log=print_log)
def discard_tile(self, tiles, closed_hand, melds, print_log=True):
selected_tile = self.choose_tile_to_discard(
tiles,
closed_hand,
melds,
print_log=print_log
)
# bot think that there is a threat on the table
# and better to fold
# if we can't find safe tiles, let's continue to build our hand
if self.ai.defence.should_go_to_defence_mode(selected_tile):
if not self.ai.in_defence:
DecisionsLogger.debug(log.DEFENCE_ACTIVATE)
self.ai.in_defence = True
defence_tile = self.ai.defence.try_to_find_safe_tile_to_discard()
if defence_tile:
return self.process_discard_option(defence_tile, closed_hand)
else:
if self.ai.in_defence:
DecisionsLogger.debug(log.DEFENCE_DEACTIVATE)
self.ai.in_defence = False
return self.process_discard_option(selected_tile, closed_hand, print_log=print_log)
def try_to_call_meld(self, tile_136, is_kamicha_discard, remaining_tiles):
tiles_136_previous = self.player.tiles[:]
tiles_136 = tiles_136_previous + [tile_136]
self.determine_strategy(tiles_136)
if not self.current_strategy:
return None, None
tiles_34_previous = TilesConverter.to_34_array(tiles_136_previous)
previous_shanten, _ = self.hand_builder.calculate_shanten(
tiles_34_previous, self.player.meld_34_tiles)
if previous_shanten == Shanten.AGARI_STATE and not self.current_strategy.can_meld_into_agari(
):
return None, None
meld, discard_option = self.current_strategy.try_to_call_meld(
tile_136, is_kamicha_discard, tiles_136, remaining_tiles)
if discard_option:
self.last_discard_option = discard_option
DecisionsLogger.debug(
log.MELD_CALL,
'Try to call meld',
context=[
'Hand: {}'.format(
self.player.format_hand_for_print(tile_136)),
'Meld: {}'.format(meld),
'Discard after meld: {}'.format(discard_option)
])
return meld, discard_option
def try_to_call_meld(self, tile_136, is_kamicha_discard):
tiles_136_previous = self.player.tiles[:]
tiles_136 = tiles_136_previous + [tile_136]
self.determine_strategy(tiles_136)
if not self.current_strategy:
return None, None
tiles_34_previous = TilesConverter.to_34_array(tiles_136_previous)
previous_shanten, _ = self.hand_builder.calculate_shanten(tiles_34_previous, self.player.meld_34_tiles)
if previous_shanten == Shanten.AGARI_STATE and not self.current_strategy.can_meld_into_agari():
return None, None
meld, discard_option = self.current_strategy.try_to_call_meld(tile_136, is_kamicha_discard, tiles_136)
if discard_option:
self.last_discard_option = discard_option
DecisionsLogger.debug(log.MELD_CALL, 'Try to call meld', context=[
'Hand: {}'.format(self.player.format_hand_for_print(tile_136)),
'Meld: {}'.format(meld),
'Discard after meld: {}'.format(discard_option)
])
return meld, discard_option
def init_hand(self):
DecisionsLogger.debug(log.INIT_HAND, context=[
'Round wind: {}'.format(DISPLAY_WINDS[self.table.round_wind_tile]),
'Player wind: {}'.format(DISPLAY_WINDS[self.player.player_wind]),
'Hand: {}'.format(self.player.format_hand_for_print()),
])
self.shanten, _ = self.hand_builder.calculate_shanten(TilesConverter.to_34_array(self.player.tiles))
def enemy_called_riichi(self, enemy_seat):
"""
After enemy riichi we had to check will we fold or not
it is affect open hand decisions
:return:
"""
if self.defence.should_go_to_defence_mode():
self.in_defence = True
DecisionsLogger.debug(log.DEFENCE_ACTIVATE)
def enemy_called_riichi(self, enemy_seat):
"""
After enemy riichi we had to check will we fold or not
it is affect open hand decisions
:return:
"""
if self.defence.should_go_to_defence_mode():
self.in_defence = True
DecisionsLogger.debug(log.DEFENCE_ACTIVATE)
def _find_best_meld_to_open(self, possible_melds, new_tiles, closed_hand,
discarded_tile):
discarded_tile_34 = discarded_tile // 4
final_results = []
for meld_34 in possible_melds:
meld_34_copy = meld_34.copy()
closed_hand_copy = closed_hand.copy()
meld_type = is_chi(meld_34_copy) and Meld.CHI or Meld.PON
meld_34_copy.remove(discarded_tile_34)
first_tile = TilesConverter.find_34_tile_in_136_array(
meld_34_copy[0], closed_hand_copy)
closed_hand_copy.remove(first_tile)
second_tile = TilesConverter.find_34_tile_in_136_array(
meld_34_copy[1], closed_hand_copy)
closed_hand_copy.remove(second_tile)
tiles = [first_tile, second_tile, discarded_tile]
meld = Meld()
meld.type = meld_type
meld.tiles = sorted(tiles)
melds = self.player.melds + [meld]
selected_tile = self.player.ai.hand_builder.choose_tile_to_discard(
new_tiles, closed_hand_copy, melds, print_log=False)
final_results.append({
'discard_tile':
selected_tile,
'meld_print':
TilesConverter.to_one_line_string(
[meld_34[0] * 4, meld_34[1] * 4, meld_34[2] * 4]),
'meld':
meld
})
final_results = sorted(final_results,
key=lambda x:
(x['discard_tile'].shanten, -x['discard_tile'].
ukeire, x['discard_tile'].valuation))
DecisionsLogger.debug(log.MELD_PREPARE,
'Options with meld calling',
context=final_results)
return final_results[0]
def _find_best_meld_to_open(self, possible_melds, new_tiles, closed_hand, discarded_tile):
discarded_tile_34 = discarded_tile // 4
final_results = []
for meld_34 in possible_melds:
meld_34_copy = meld_34.copy()
closed_hand_copy = closed_hand.copy()
meld_type = is_chi(meld_34_copy) and Meld.CHI or Meld.PON
meld_34_copy.remove(discarded_tile_34)
first_tile = TilesConverter.find_34_tile_in_136_array(meld_34_copy[0], closed_hand_copy)
closed_hand_copy.remove(first_tile)
second_tile = TilesConverter.find_34_tile_in_136_array(meld_34_copy[1], closed_hand_copy)
closed_hand_copy.remove(second_tile)
tiles = [
first_tile,
second_tile,
discarded_tile
]
meld = Meld()
meld.type = meld_type
meld.tiles = sorted(tiles)
melds = self.player.melds + [meld]
selected_tile = self.player.ai.hand_builder.choose_tile_to_discard(
new_tiles,
closed_hand_copy,
melds,
print_log=False
)
final_results.append({
'discard_tile': selected_tile,
'meld_print': TilesConverter.to_one_line_string([meld_34[0] * 4, meld_34[1] * 4, meld_34[2] * 4]),
'meld': meld
})
final_results = sorted(final_results, key=lambda x: (x['discard_tile'].shanten,
-x['discard_tile'].ukeire,
x['discard_tile'].valuation))
DecisionsLogger.debug(log.MELD_PREPARE, 'Options with meld calling', context=final_results)
return final_results[0]
def determine_strategy(self, tiles_136):
# for already opened hand we don't need to give up on selected strategy
if self.player.is_open_hand and self.current_strategy:
return False
old_strategy = self.current_strategy
self.current_strategy = None
# order is important, we add strategies with the highest priority first
strategies = []
if self.player.table.has_open_tanyao:
strategies.append(
TanyaoStrategy(BaseStrategy.TANYAO, self.player,
self.gpparams))
strategies.append(
YakuhaiStrategy(BaseStrategy.YAKUHAI, self.player, self.gpparams))
strategies.append(
HonitsuStrategy(BaseStrategy.HONITSU, self.player, self.gpparams))
strategies.append(
ChinitsuStrategy(BaseStrategy.CHINITSU, self.player,
self.gpparams))
strategies.append(
ChiitoitsuStrategy(BaseStrategy.CHIITOITSU, self.player,
self.gpparams))
strategies.append(
FormalTempaiStrategy(BaseStrategy.FORMAL_TEMPAI, self.player,
self.gpparams))
for strategy in strategies:
if strategy.should_activate_strategy(tiles_136):
self.current_strategy = strategy
break
if self.current_strategy:
if not old_strategy or self.current_strategy.type != old_strategy.type:
DecisionsLogger.debug(
log.STRATEGY_ACTIVATE,
context=self.current_strategy,
)
if not self.current_strategy and old_strategy:
DecisionsLogger.debug(log.STRATEGY_DROP, context=old_strategy)
return self.current_strategy and True or False
def draw_tile(self, tile_136):
DecisionsLogger.debug(
log.DRAW,
context=[
'Step: {}'.format(self.round_step),
'Hand: {}'.format(self.format_hand_for_print(tile_136)),
'In defence: {}'.format(self.ai.in_defence),
'Current strategy: {}'.format(self.ai.current_strategy)
])
self.last_draw = tile_136
self.tiles.append(tile_136)
# we need sort it to have a better string presentation
self.tiles = sorted(self.tiles)
self.ai.draw_tile(tile_136)
def draw_tile(self, tile_136):
DecisionsLogger.debug(
log.DRAW,
context=[
'Step: {}'.format(self.round_step),
'Hand: {}'.format(self.format_hand_for_print(tile_136)),
'In defence: {}'.format(self.ai.in_defence),
'Current strategy: {}'.format(self.ai.current_strategy)
]
)
self.last_draw = tile_136
self.tiles.append(tile_136)
# we need sort it to have a better string presentation
self.tiles = sorted(self.tiles)
self.ai.draw_tile(tile_136)
def process_discard_option(self, discard_option, closed_hand, force_discard=False, print_log=True):
if print_log:
DecisionsLogger.debug(
log.DISCARD,
context=discard_option
)
self.player.in_tempai = discard_option.shanten == 0
self.ai.waiting = discard_option.waiting
self.ai.shanten = discard_option.shanten
self.ai.ukeire = discard_option.ukeire
self.ai.ukeire_second = discard_option.ukeire_second
# when we called meld we don't need "smart" discard
if force_discard:
return discard_option.find_tile_in_hand(closed_hand)
last_draw_34 = self.player.last_draw and self.player.last_draw // 4 or None
if self.player.last_draw not in AKA_DORA_LIST and last_draw_34 == discard_option.tile_to_discard:
return self.player.last_draw
else:
return discard_option.find_tile_in_hand(closed_hand)
def process_discard_option(self, discard_option, closed_hand, force_discard=False, print_log=True):
if print_log:
DecisionsLogger.debug(
log.DISCARD,
context=discard_option
)
self.player.in_tempai = discard_option.shanten == 0
self.ai.waiting = discard_option.waiting
self.ai.shanten = discard_option.shanten
self.ai.ukeire = discard_option.ukeire
self.ai.ukeire_second = discard_option.ukeire_second
# when we called meld we don't need "smart" discard
if force_discard:
return discard_option.find_tile_in_hand(closed_hand)
last_draw_34 = self.player.last_draw and self.player.last_draw // 4 or None
if self.player.last_draw not in AKA_DORA_LIST and last_draw_34 == discard_option.tile_to_discard:
return self.player.last_draw
else:
return discard_option.find_tile_in_hand(closed_hand)
def determine_strategy(self, tiles_136):
# for already opened hand we don't need to give up on selected strategy
if self.player.is_open_hand and self.current_strategy:
return False
old_strategy = self.current_strategy
self.current_strategy = None
# order is important, we add strategies with the highest priority first
strategies = []
if self.player.table.has_open_tanyao:
strategies.append(TanyaoStrategy(BaseStrategy.TANYAO, self.player))
strategies.append(YakuhaiStrategy(BaseStrategy.YAKUHAI, self.player))
strategies.append(HonitsuStrategy(BaseStrategy.HONITSU, self.player))
strategies.append(ChinitsuStrategy(BaseStrategy.CHINITSU, self.player))
strategies.append(ChiitoitsuStrategy(BaseStrategy.CHIITOITSU, self.player))
strategies.append(FormalTempaiStrategy(BaseStrategy.FORMAL_TEMPAI, self.player))
for strategy in strategies:
if strategy.should_activate_strategy(tiles_136):
self.current_strategy = strategy
break
if self.current_strategy:
if not old_strategy or self.current_strategy.type != old_strategy.type:
DecisionsLogger.debug(
log.STRATEGY_ACTIVATE,
context=self.current_strategy,
)
if not self.current_strategy and old_strategy:
DecisionsLogger.debug(log.STRATEGY_DROP, context=old_strategy)
return self.current_strategy and True or False
def choose_tile_to_discard(self, tiles, closed_hand, melds, print_log=True):
"""
Try to find best tile to discard, based on different rules
"""
discard_options, _ = self.find_discard_options(
tiles,
closed_hand,
melds
)
# our strategy can affect discard options
if self.ai.current_strategy:
discard_options = self.ai.current_strategy.determine_what_to_discard(
discard_options,
closed_hand,
melds
)
had_to_be_discarded_tiles = [x for x in discard_options if x.had_to_be_discarded]
if had_to_be_discarded_tiles:
discard_options = sorted(had_to_be_discarded_tiles, key=lambda x: (x.shanten, -x.ukeire, x.valuation))
DecisionsLogger.debug(
log.DISCARD_OPTIONS,
'Discard marked tiles first',
discard_options,
print_log=print_log
)
return discard_options[0]
# remove needed tiles from discard options
discard_options = [x for x in discard_options if not x.had_to_be_saved]
discard_options = sorted(discard_options, key=lambda x: (x.shanten, -x.ukeire))
first_option = discard_options[0]
results_with_same_shanten = [x for x in discard_options if x.shanten == first_option.shanten]
possible_options = [first_option]
ukeire_borders = self._choose_ukeire_borders(first_option, 20, 'ukeire')
for discard_option in results_with_same_shanten:
# there is no sense to check already chosen tile
if discard_option.tile_to_discard == first_option.tile_to_discard:
continue
# let's choose tiles that are close to the max ukeire tile
if discard_option.ukeire >= first_option.ukeire - ukeire_borders:
possible_options.append(discard_option)
if first_option.shanten in [1, 2, 3]:
ukeire_field = 'ukeire_second'
for x in possible_options:
self.calculate_second_level_ukeire(x, tiles, melds)
possible_options = sorted(possible_options, key=lambda x: -getattr(x, ukeire_field))
filter_percentage = 20
possible_options = self._filter_list_by_percentage(
possible_options,
ukeire_field,
filter_percentage
)
else:
ukeire_field = 'ukeire'
possible_options = sorted(possible_options, key=lambda x: -getattr(x, ukeire_field))
# only one option - so we choose it
if len(possible_options) == 1:
return possible_options[0]
# tempai state has a special handling
if first_option.shanten == 0:
other_tiles_with_same_shanten = [x for x in possible_options if x.shanten == 0]
return self._choose_best_discard_in_tempai(tiles, melds, other_tiles_with_same_shanten)
tiles_without_dora = [x for x in possible_options if x.count_of_dora == 0]
# we have only dora candidates to discard
if not tiles_without_dora:
DecisionsLogger.debug(
log.DISCARD_OPTIONS,
context=possible_options,
print_log=print_log
)
min_dora = min([x.count_of_dora for x in possible_options])
min_dora_list = [x for x in possible_options if x.count_of_dora == min_dora]
return sorted(min_dora_list, key=lambda x: -getattr(x, ukeire_field))[0]
# only one option - so we choose it
if len(tiles_without_dora) == 1:
return tiles_without_dora[0]
# 1-shanten hands have special handling - we can consider future hand cost here
if first_option.shanten == 1:
return sorted(tiles_without_dora, key=lambda x: (-x.second_level_cost, -x.ukeire_second, x.valuation))[0]
if first_option.shanten == 2 or first_option.shanten == 3:
# we filter 10% of options here
second_filter_percentage = 10
filtered_options = self._filter_list_by_percentage(
tiles_without_dora,
ukeire_field,
second_filter_percentage
)
# we should also consider borders for 3+ shanten hands
else:
best_option_without_dora = tiles_without_dora[0]
ukeire_borders = self._choose_ukeire_borders(best_option_without_dora, 10, ukeire_field)
filtered_options = []
for discard_option in tiles_without_dora:
val = getattr(best_option_without_dora, ukeire_field) - ukeire_borders
if getattr(discard_option, ukeire_field) >= val:
filtered_options.append(discard_option)
DecisionsLogger.debug(
log.DISCARD_OPTIONS,
context=possible_options,
print_log=print_log
)
closed_hand_34 = TilesConverter.to_34_array(closed_hand)
isolated_tiles = [x for x in filtered_options if is_tile_strictly_isolated(closed_hand_34, x.tile_to_discard)]
# isolated tiles should be discarded first
if isolated_tiles:
# let's sort tiles by value and let's choose less valuable tile to discard
return sorted(isolated_tiles, key=lambda x: x.valuation)[0]
# there are no isolated tiles or we don't care about them
# let's discard tile with greater ukeire/ukeire2
filtered_options = sorted(filtered_options, key=lambda x: -getattr(x, ukeire_field))
first_option = filtered_options[0]
other_tiles_with_same_ukeire = [x for x in filtered_options
if getattr(x, ukeire_field) == getattr(first_option, ukeire_field)]
# it will happen with shanten=1, all tiles will have ukeire_second == 0
# or in tempai we can have several tiles with same ukeire
if other_tiles_with_same_ukeire:
return sorted(other_tiles_with_same_ukeire, key=lambda x: x.valuation)[0]
# we have only one candidate to discard with greater ukeire
return first_option
def choose_tile_to_discard(self, tiles, closed_hand, melds, print_log=True):
"""
Try to find best tile to discard, based on different rules
"""
discard_options, _ = self.find_discard_options(
tiles,
closed_hand,
melds
)
# our strategy can affect discard options
if self.ai.current_strategy:
discard_options = self.ai.current_strategy.determine_what_to_discard(
discard_options,
closed_hand,
melds
)
had_to_be_discarded_tiles = [x for x in discard_options if x.had_to_be_discarded]
if had_to_be_discarded_tiles:
discard_options = sorted(had_to_be_discarded_tiles, key=lambda x: (x.shanten, -x.ukeire, x.valuation))
DecisionsLogger.debug(
log.DISCARD_OPTIONS,
'Discard marked tiles first',
discard_options,
print_log=print_log
)
return discard_options[0]
# remove needed tiles from discard options
discard_options = [x for x in discard_options if not x.had_to_be_saved]
discard_options = sorted(discard_options, key=lambda x: (x.shanten, -x.ukeire))
first_option = discard_options[0]
results_with_same_shanten = [x for x in discard_options if x.shanten == first_option.shanten]
possible_options = [first_option]
ukeire_borders = self._choose_ukeire_borders(first_option, 20, 'ukeire')
for discard_option in results_with_same_shanten:
# there is no sense to check already chosen tile
if discard_option.tile_to_discard == first_option.tile_to_discard:
continue
# let's choose tiles that are close to the max ukeire tile
if discard_option.ukeire >= first_option.ukeire - ukeire_borders:
possible_options.append(discard_option)
if first_option.shanten in [1, 2, 3]:
ukeire_field = 'ukeire_second'
for x in possible_options:
self.calculate_second_level_ukeire(x, tiles, melds)
possible_options = sorted(possible_options, key=lambda x: -getattr(x, ukeire_field))
filter_percentage = 20
possible_options = self._filter_list_by_percentage(
possible_options,
ukeire_field,
filter_percentage
)
else:
ukeire_field = 'ukeire'
possible_options = sorted(possible_options, key=lambda x: -getattr(x, ukeire_field))
# only one option - so we choose it
if len(possible_options) == 1:
return possible_options[0]
# tempai state has a special handling
if first_option.shanten == 0:
other_tiles_with_same_shanten = [x for x in possible_options if x.shanten == 0]
return self._choose_best_discard_in_tempai(tiles, melds, other_tiles_with_same_shanten)
tiles_without_dora = [x for x in possible_options if x.count_of_dora == 0]
# we have only dora candidates to discard
if not tiles_without_dora:
DecisionsLogger.debug(
log.DISCARD_OPTIONS,
context=possible_options,
print_log=print_log
)
min_dora = min([x.count_of_dora for x in possible_options])
min_dora_list = [x for x in possible_options if x.count_of_dora == min_dora]
return sorted(min_dora_list, key=lambda x: -getattr(x, ukeire_field))[0]
# only one option - so we choose it
if len(tiles_without_dora) == 1:
return tiles_without_dora[0]
# 1-shanten hands have special handling - we can consider future hand cost here
if first_option.shanten == 1:
return sorted(tiles_without_dora, key=lambda x: (-x.second_level_cost, -x.ukeire_second, x.valuation))[0]
if first_option.shanten == 2 or first_option.shanten == 3:
# we filter 10% of options here
second_filter_percentage = 10
filtered_options = self._filter_list_by_percentage(
tiles_without_dora,
ukeire_field,
second_filter_percentage
)
# we should also consider borders for 3+ shanten hands
else:
best_option_without_dora = tiles_without_dora[0]
ukeire_borders = self._choose_ukeire_borders(best_option_without_dora, 10, ukeire_field)
filtered_options = []
for discard_option in tiles_without_dora:
val = getattr(best_option_without_dora, ukeire_field) - ukeire_borders
if getattr(discard_option, ukeire_field) >= val:
filtered_options.append(discard_option)
DecisionsLogger.debug(
log.DISCARD_OPTIONS,
context=possible_options,
print_log=print_log
)
closed_hand_34 = TilesConverter.to_34_array(closed_hand)
isolated_tiles = [x for x in filtered_options if is_tile_strictly_isolated(closed_hand_34, x.tile_to_discard)]
# isolated tiles should be discarded first
if isolated_tiles:
# let's sort tiles by value and let's choose less valuable tile to discard
return sorted(isolated_tiles, key=lambda x: x.valuation)[0]
# there are no isolated tiles or we don't care about them
# let's discard tile with greater ukeire/ukeire2
filtered_options = sorted(filtered_options, key=lambda x: -getattr(x, ukeire_field))
first_option = filtered_options[0]
other_tiles_with_same_ukeire = [x for x in filtered_options
if getattr(x, ukeire_field) == getattr(first_option, ukeire_field)]
# it will happen with shanten=1, all tiles will have ukeire_second == 0
# or in tempai we can have several tiles with same ukeire
if other_tiles_with_same_ukeire:
return sorted(other_tiles_with_same_ukeire, key=lambda x: x.valuation)[0]
# we have only one candidate to discard with greater ukeire
return first_option