def _initialize_honitsu_dora_count(self, tiles_136, suit):
tiles_34 = TilesConverter.to_34_array(tiles_136)
dora_count_man_not_isolated = 0
dora_count_pin_not_isolated = 0
dora_count_sou_not_isolated = 0
for tile_136 in tiles_136:
tile_34 = tile_136 // 4
dora_count = plus_dora(tile_136, self.player.table.dora_indicators)
if is_aka_dora(tile_136, self.player.table.has_aka_dora):
dora_count += 1
if is_man(tile_34):
if not is_tile_strictly_isolated(tiles_34, tile_34):
dora_count_man_not_isolated += dora_count
if is_pin(tile_34):
if not is_tile_strictly_isolated(tiles_34, tile_34):
dora_count_pin_not_isolated += dora_count
if is_sou(tile_34):
if not is_tile_strictly_isolated(tiles_34, tile_34):
dora_count_sou_not_isolated += dora_count
if suit['name'] == 'pin':
self.dora_count_other_suits_not_isolated = dora_count_man_not_isolated + dora_count_sou_not_isolated
elif suit['name'] == 'sou':
self.dora_count_other_suits_not_isolated = dora_count_man_not_isolated + dora_count_pin_not_isolated
elif suit['name'] == 'man':
self.dora_count_other_suits_not_isolated = dora_count_sou_not_isolated + dora_count_pin_not_isolated
def get_possible_meld(self, tile, is_kamicha_discard):
closed_hand = self.player.closed_hand[:]
# we can't open hand anymore
if len(closed_hand) == 1:
return None, None
discarded_tile = tile // 4
closed_hand_34 = TilesConverter.to_34_array(closed_hand + [tile])
combinations = []
first_index = 0
second_index = 0
if is_man(discarded_tile):
first_index = 0
second_index = 8
elif is_pin(discarded_tile):
first_index = 9
second_index = 17
elif is_sou(discarded_tile):
first_index = 18
second_index = 26
if second_index == 0:
# honor tiles
if closed_hand_34[discarded_tile] == 3:
combinations = [[[discarded_tile] * 3]]
else:
# to avoid not necessary calculations
# we can check only tiles around +-2 discarded tile
first_limit = discarded_tile - 2
if first_limit < first_index:
first_limit = first_index
second_limit = discarded_tile + 2
if second_limit > second_index:
second_limit = second_index
combinations = self.hand_divider.find_valid_combinations(
closed_hand_34, first_limit, second_limit, True)
if combinations:
combinations = combinations[0]
# possible_melds = []
melds_chi, melds_pon = [], []
for best_meld_34 in combinations:
# we can call pon from everyone
if is_pon(best_meld_34) and discarded_tile in best_meld_34:
if best_meld_34 not in melds_pon:
melds_pon.append(best_meld_34)
# we can call chi only from left player
if is_chi(
best_meld_34
) and is_kamicha_discard and discarded_tile in best_meld_34:
if best_meld_34 not in melds_chi:
melds_chi.append(best_meld_34)
return melds_chi, melds_pon
def is_condition_met(self, hand, *args):
pon_sets = [i for i in hand if is_pon_or_kan(i)]
if len(pon_sets) < 3:
return False
sou_pon = []
pin_pon = []
man_pon = []
for item in pon_sets:
if is_sou(item[0]):
sou_pon.append(item)
elif is_pin(item[0]):
pin_pon.append(item)
elif is_man(item[0]):
man_pon.append(item)
for sou_item in sou_pon:
for pin_item in pin_pon:
for man_item in man_pon:
# cast tile indices to 1..9 representation
sou_item = set([simplify(x) for x in sou_item])
pin_item = set([simplify(x) for x in pin_item])
man_item = set([simplify(x) for x in man_item])
if sou_item == pin_item == man_item:
return True
return False
def is_condition_met(self, hand, allow_other_sets, *args):
sou_sets = 0
pin_sets = 0
man_sets = 0
honor_sets = 0
for item in hand:
if is_sou(item[0]):
sou_sets += 1
elif is_pin(item[0]):
pin_sets += 1
elif is_man(item[0]):
man_sets += 1
else:
honor_sets += 1
sets = [sou_sets, pin_sets, man_sets]
only_one_suit = len([x for x in sets if x != 0]) == 1
if not only_one_suit or honor_sets > 0:
return False
if not allow_other_sets and pin_sets == 0:
# if we are not allowing other sets than pins
return False
indices = reduce(lambda z, y: z + y, hand)
# cast tile indices to 0..8 representation
indices = [simplify(x) for x in indices]
# check for pairs
for x in range(1, 8):
if len([y for y in indices if y == x]) != 2:
return False
return True
def is_sanshoku_douko(self, hand):
"""
Three pon sets consisting of the same numbers in all three suits
:param hand: list of hand's sets
:return: true|false
"""
pon_sets = [i for i in hand if is_pon(i)]
if len(pon_sets) < 3:
return False
sou_pon = []
pin_pon = []
man_pon = []
for item in pon_sets:
if is_sou(item[0]):
sou_pon.append(item)
elif is_pin(item[0]):
pin_pon.append(item)
elif is_man(item[0]):
man_pon.append(item)
for sou_item in sou_pon:
for pin_item in pin_pon:
for man_item in man_pon:
# cast tile indices to 1..9 representation
sou_item = [simplify(x) for x in sou_item]
pin_item = [simplify(x) for x in pin_item]
man_item = [simplify(x) for x in man_item]
if sou_item == pin_item == man_item:
return True
return False
def is_chinitsu(self, hand):
"""
The hand contains tiles from a single suit
:param hand: list of hand's sets
:return: true|false
"""
honor_sets = 0
sou_sets = 0
pin_sets = 0
man_sets = 0
for item in hand:
if item[0] in HONOR_INDICES:
honor_sets += 1
if is_sou(item[0]):
sou_sets += 1
elif is_pin(item[0]):
pin_sets += 1
elif is_man(item[0]):
man_sets += 1
sets = [sou_sets, pin_sets, man_sets]
only_one_suit = len([x for x in sets if x != 0]) == 1
return only_one_suit and honor_sets == 0
def _suits_tiles(self, tiles_34):
"""
Return tiles separated by suits
:param tiles_34:
:return:
"""
suits = [
[0] * 9,
[0] * 9,
[0] * 9,
]
for tile in range(0, EAST):
total_tiles = self.player.total_tiles(tile, tiles_34)
if not total_tiles:
continue
suit_index = None
simplified_tile = simplify(tile)
if is_man(tile):
suit_index = 0
if is_pin(tile):
suit_index = 1
if is_sou(tile):
suit_index = 2
suits[suit_index][simplified_tile] += total_tiles
return suits
def is_sanshoku(self, hand):
"""
The same chi in three suits
:param hand: list of hand's sets
:return: true|false
"""
chi_sets = [i for i in hand if is_chi(i)]
if len(chi_sets) < 3:
return False
sou_chi = []
pin_chi = []
man_chi = []
for item in chi_sets:
if is_sou(item[0]):
sou_chi.append(item)
elif is_pin(item[0]):
pin_chi.append(item)
elif is_man(item[0]):
man_chi.append(item)
for sou_item in sou_chi:
for pin_item in pin_chi:
for man_item in man_chi:
# cast tile indices to 0..8 representation
sou_item = [simplify(x) for x in sou_item]
pin_item = [simplify(x) for x in pin_item]
man_item = [simplify(x) for x in man_item]
if sou_item == pin_item == man_item:
return True
return False
def _initialize_honitsu_dora_count(self, tiles_136, suit):
tiles_34 = TilesConverter.to_34_array(tiles_136)
dora_count_man_not_isolated = 0
dora_count_pin_not_isolated = 0
dora_count_sou_not_isolated = 0
for tile_136 in tiles_136:
tile_34 = tile_136 // 4
dora_count = plus_dora(tile_136, self.player.table.dora_indicators)
if is_aka_dora(tile_136, self.player.table.has_aka_dora):
dora_count += 1
if is_man(tile_34):
if not is_tile_strictly_isolated(tiles_34, tile_34):
dora_count_man_not_isolated += dora_count
if is_pin(tile_34):
if not is_tile_strictly_isolated(tiles_34, tile_34):
dora_count_pin_not_isolated += dora_count
if is_sou(tile_34):
if not is_tile_strictly_isolated(tiles_34, tile_34):
dora_count_sou_not_isolated += dora_count
if suit['name'] == 'pin':
self.dora_count_other_suits_not_isolated = dora_count_man_not_isolated + dora_count_sou_not_isolated
elif suit['name'] == 'sou':
self.dora_count_other_suits_not_isolated = dora_count_man_not_isolated + dora_count_pin_not_isolated
elif suit['name'] == 'man':
self.dora_count_other_suits_not_isolated = dora_count_sou_not_isolated + dora_count_pin_not_isolated
def is_condition_met(self, hand, *args):
chi_sets = [i for i in hand if is_chi(i)]
if len(chi_sets) < 3:
return False
sou_chi = []
pin_chi = []
man_chi = []
for item in chi_sets:
if is_sou(item[0]):
sou_chi.append(item)
elif is_pin(item[0]):
pin_chi.append(item)
elif is_man(item[0]):
man_chi.append(item)
for sou_item in sou_chi:
for pin_item in pin_chi:
for man_item in man_chi:
# cast tile indices to 0..8 representation
sou_item = [simplify(x) for x in sou_item]
pin_item = [simplify(x) for x in pin_item]
man_item = [simplify(x) for x in man_item]
if sou_item == pin_item == man_item:
return True
return False
def is_condition_met(self, hand, *args):
chi_sets = [i for i in hand if is_chi(i)]
if len(chi_sets) < 3:
return False
sou_chi = []
pin_chi = []
man_chi = []
for item in chi_sets:
if is_sou(item[0]):
sou_chi.append(item)
elif is_pin(item[0]):
pin_chi.append(item)
elif is_man(item[0]):
man_chi.append(item)
sets = [sou_chi, pin_chi, man_chi]
for suit_item in sets:
if len(suit_item) < 3:
continue
casted_sets = []
for set_item in suit_item:
# cast tiles indices to 0..8 representation
casted_sets.append([simplify(set_item[0]),
simplify(set_item[1]),
simplify(set_item[2])])
if [0, 1, 2] in casted_sets and [3, 4, 5] in casted_sets and [6, 7, 8] in casted_sets:
return True
return False
def is_chuuren_poutou(self, hand):
"""
The hand contains 1-1-1-2-3-4-5-6-7-8-9-9-9 of one suit, plus any other tile of the same suit.
:param hand: list of hand's sets
:return: true|false
"""
sou_sets = 0
pin_sets = 0
man_sets = 0
honor_sets = 0
for item in hand:
if is_sou(item[0]):
sou_sets += 1
elif is_pin(item[0]):
pin_sets += 1
elif is_man(item[0]):
man_sets += 1
else:
honor_sets += 1
sets = [sou_sets, pin_sets, man_sets]
only_one_suit = len([x for x in sets if x != 0]) == 1
if not only_one_suit or honor_sets > 0:
return False
indices = reduce(lambda z, y: z + y, hand)
# cast tile indices to 0..8 representation
indices = [simplify(x) for x in indices]
# 1-1-1
if len([x for x in indices if x == 0]) < 3:
return False
# 9-9-9
if len([x for x in indices if x == 8]) < 3:
return False
# 1-2-3-4-5-6-7-8-9 and one tile to any of them
indices.remove(0)
indices.remove(0)
indices.remove(8)
indices.remove(8)
for x in range(0, 9):
if x in indices:
indices.remove(x)
if len(indices) == 1:
return True
return False
def find_suji(self, safe_tiles_34):
suji = []
suits = [[], [], []]
# let's cast each tile to 0-8 presentation
for tile in safe_tiles_34:
if is_man(tile):
suits[0].append(simplify(tile))
if is_pin(tile):
suits[1].append(simplify(tile))
if is_sou(tile):
suits[2].append(simplify(tile))
for x in range(0, 3):
simplified_tiles = suits[x]
base = x * 9
# 1-4-7
if 3 in simplified_tiles:
suji.append(self.FIRST_SUJI + base)
# double 1-4-7
if 0 in simplified_tiles and 6 in simplified_tiles:
suji.append(self.FIRST_SUJI + base)
# 2-5-8
if 4 in simplified_tiles:
suji.append(self.SECOND_SUJI + base)
# double 2-5-8
if 1 in simplified_tiles and 7 in simplified_tiles:
suji.append(self.SECOND_SUJI + base)
# 3-6-9
if 5 in simplified_tiles:
suji.append(self.THIRD_SUJI + base)
# double 3-6-9
if 2 in simplified_tiles and 8 in simplified_tiles:
suji.append(self.THIRD_SUJI + base)
suji = list(set(suji))
return suji
def find_suji(self, safe_tiles_34):
suji = []
suits = [[], [], []]
# let's cast each tile to 0-8 presentation
for tile in safe_tiles_34:
if is_man(tile):
suits[0].append(simplify(tile))
if is_pin(tile):
suits[1].append(simplify(tile))
if is_sou(tile):
suits[2].append(simplify(tile))
for x in range(0, 3):
simplified_tiles = suits[x]
base = x * 9
# 1-4-7
if 3 in simplified_tiles:
suji.append(self.FIRST_SUJI + base)
# double 1-4-7
if 0 in simplified_tiles and 6 in simplified_tiles:
suji.append(self.FIRST_SUJI + base)
# 2-5-8
if 4 in simplified_tiles:
suji.append(self.SECOND_SUJI + base)
# double 2-5-8
if 1 in simplified_tiles and 7 in simplified_tiles:
suji.append(self.SECOND_SUJI + base)
# 3-6-9
if 5 in simplified_tiles:
suji.append(self.THIRD_SUJI + base)
# double 3-6-9
if 2 in simplified_tiles and 8 in simplified_tiles:
suji.append(self.THIRD_SUJI + base)
suji = list(set(suji))
return suji
def is_condition_met(self, hand, *args):
sou_sets = 0
pin_sets = 0
man_sets = 0
honor_sets = 0
for item in hand:
if is_sou(item[0]):
sou_sets += 1
elif is_pin(item[0]):
pin_sets += 1
elif is_man(item[0]):
man_sets += 1
else:
honor_sets += 1
sets = [sou_sets, pin_sets, man_sets]
only_one_suit = len([x for x in sets if x != 0]) == 1
if not only_one_suit or honor_sets > 0:
return False
indices = reduce(lambda z, y: z + y, hand)
# cast tile indices to 0..8 representation
indices = [simplify(x) for x in indices]
# 1-1-1
if len([x for x in indices if x == 0]) < 3:
return False
# 9-9-9
if len([x for x in indices if x == 8]) < 3:
return False
# 1-2-3-4-5-6-7-8-9 and one tile to any of them
indices.remove(0)
indices.remove(0)
indices.remove(8)
indices.remove(8)
for x in range(0, 9):
if x in indices:
indices.remove(x)
if len(indices) == 1:
return True
return False
def is_ittsu(self, hand):
"""
Three sets of same suit: 1-2-3, 4-5-6, 7-8-9
:param hand: list of hand's sets
:return: true|false
"""
chi_sets = [i for i in hand if is_chi(i)]
if len(chi_sets) < 3:
return False
sou_chi = []
pin_chi = []
man_chi = []
for item in chi_sets:
if is_sou(item[0]):
sou_chi.append(item)
elif is_pin(item[0]):
pin_chi.append(item)
elif is_man(item[0]):
man_chi.append(item)
sets = [sou_chi, pin_chi, man_chi]
for suit_item in sets:
if len(suit_item) < 3:
continue
casted_sets = []
for set_item in suit_item:
# cast tiles indices to 0..8 representation
casted_sets.append([
simplify(set_item[0]),
simplify(set_item[1]),
simplify(set_item[2])
])
if [0, 1, 2] in casted_sets and [3, 4, 5] in casted_sets and [
6, 7, 8
] in casted_sets:
return True
return False
def _initialize_honitsu_dora_count(self, tiles_136, suit):
tiles_34 = TilesConverter.to_34_array(tiles_136)
dora_count_man = 0
dora_count_pin = 0
dora_count_sou = 0
dora_count_man_not_isolated = 0
dora_count_pin_not_isolated = 0
dora_count_sou_not_isolated = 0
for tile_136 in tiles_136:
tile_34 = tile_136 // 4
dora_count = plus_dora(
tile_136, self.player.table.dora_indicators, add_aka_dora=self.player.table.has_aka_dora
)
if is_man(tile_34):
dora_count_man += dora_count
if not is_tile_strictly_isolated(tiles_34, tile_34):
dora_count_man_not_isolated += dora_count
if is_pin(tile_34):
dora_count_pin += dora_count
if not is_tile_strictly_isolated(tiles_34, tile_34):
dora_count_pin_not_isolated += dora_count
if is_sou(tile_34):
dora_count_sou += dora_count
if not is_tile_strictly_isolated(tiles_34, tile_34):
dora_count_sou_not_isolated += dora_count
if suit["name"] == "pin":
self.dora_count_our_suit = dora_count_pin
self.dora_count_other_suits_not_isolated = dora_count_man_not_isolated + dora_count_sou_not_isolated
elif suit["name"] == "sou":
self.dora_count_our_suit = dora_count_sou
self.dora_count_other_suits_not_isolated = dora_count_man_not_isolated + dora_count_pin_not_isolated
elif suit["name"] == "man":
self.dora_count_our_suit = dora_count_man
self.dora_count_other_suits_not_isolated = dora_count_sou_not_isolated + dora_count_pin_not_isolated
def is_condition_met(self, hand, *args):
honor_sets = 0
sou_sets = 0
pin_sets = 0
man_sets = 0
for item in hand:
if item[0] in HONOR_INDICES:
honor_sets += 1
if is_sou(item[0]):
sou_sets += 1
elif is_pin(item[0]):
pin_sets += 1
elif is_man(item[0]):
man_sets += 1
sets = [sou_sets, pin_sets, man_sets]
only_one_suit = len([x for x in sets if x != 0]) == 1
return only_one_suit and honor_sets == 0
def find_tiles_to_discard(self, players):
found_suji = []
for player in players:
suji = []
suits = [[], [], []]
# let's cast each tile to 0-8 presentation
safe_tiles = player.all_safe_tiles
for tile in safe_tiles:
if is_man(tile):
suits[0].append(simplify(tile))
if is_pin(tile):
suits[1].append(simplify(tile))
if is_sou(tile):
suits[2].append(simplify(tile))
for x in range(0, 3):
simplified_tiles = suits[x]
base = x * 9
# 1-4-7
if 3 in simplified_tiles:
suji.append(self.FIRST_SUJI + base)
# double 1-4-7
if 0 in simplified_tiles and 6 in simplified_tiles:
suji.append(self.FIRST_SUJI + base)
# 2-5-8
if 4 in simplified_tiles:
suji.append(self.SECOND_SUJI + base)
# double 2-5-8
if 1 in simplified_tiles and 7 in simplified_tiles:
suji.append(self.SECOND_SUJI + base)
# 3-6-9
if 5 in simplified_tiles:
suji.append(self.THIRD_SUJI + base)
# double 3-6-9
if 2 in simplified_tiles and 8 in simplified_tiles:
suji.append(self.THIRD_SUJI + base)
suji = list(set(suji))
found_suji.append(suji)
if not found_suji:
return []
common_suji = list(set.intersection(*map(set, found_suji)))
tiles = []
for suji in common_suji:
if not suji:
continue
tiles.extend(self._suji_tiles(suji))
return tiles
def _find_best_meld_to_open(self, call_tile_136, possible_melds, new_tiles, closed_hand, discarded_tile):
all_tiles_are_suitable = True
for tile_136 in closed_hand:
all_tiles_are_suitable &= self.is_tile_suitable(tile_136)
final_results = []
for meld_34 in possible_melds:
# in order to fully emulate the possible hand with meld, we save original melds state,
# modify player's melds and then restore original melds state after everything is done
melds_original = self.player.melds[:]
tiles_original = self.player.tiles[:]
tiles = self._find_meld_tiles(closed_hand, meld_34, discarded_tile)
meld = MeldPrint()
meld.type = is_chi(meld_34) and MeldPrint.CHI or MeldPrint.PON
meld.tiles = sorted(tiles)
self.player.logger.debug(
log.MELD_HAND, f"Hand: {self._format_hand_for_print(closed_hand, discarded_tile, self.player.melds)}"
)
# update player hand state to emulate new situation and choose what to discard
self.player.tiles = new_tiles[:]
self.player.add_called_meld(meld)
selected_tile = self.player.ai.hand_builder.choose_tile_to_discard(after_meld=True)
# restore original tiles and melds state
self.player.tiles = tiles_original
self.player.melds = melds_original
# we can't find a good discard candidate, so let's skip this
if not selected_tile:
self.player.logger.debug(log.MELD_DEBUG, "Can't find discard candidate after meld. Abort melding.")
continue
if not all_tiles_are_suitable and self.is_tile_suitable(selected_tile.tile_to_discard_136):
self.player.logger.debug(
log.MELD_DEBUG,
"We have tiles in our hand that are not suitable to current strategy, "
"but we are going to discard tile that we need. Abort melding.",
)
continue
call_tile_34 = call_tile_136 // 4
# we can't discard the same tile that we called
if selected_tile.tile_to_discard_34 == call_tile_34:
self.player.logger.debug(
log.MELD_DEBUG, "We can't discard same tile that we used for meld. Abort melding."
)
continue
# we can't discard tile from the other end of the same ryanmen that we called
if not is_honor(selected_tile.tile_to_discard_34) and meld.type == MeldPrint.CHI:
if is_sou(selected_tile.tile_to_discard_34) and is_sou(call_tile_34):
same_suit = True
elif is_man(selected_tile.tile_to_discard_34) and is_man(call_tile_34):
same_suit = True
elif is_pin(selected_tile.tile_to_discard_34) and is_pin(call_tile_34):
same_suit = True
else:
same_suit = False
if same_suit:
simplified_meld_0 = simplify(meld.tiles[0] // 4)
simplified_meld_1 = simplify(meld.tiles[1] // 4)
simplified_call = simplify(call_tile_34)
simplified_discard = simplify(selected_tile.tile_to_discard_34)
kuikae = False
if simplified_discard == simplified_call - 3:
kuikae_set = [simplified_call - 1, simplified_call - 2]
if simplified_meld_0 in kuikae_set and simplified_meld_1 in kuikae_set:
kuikae = True
elif simplified_discard == simplified_call + 3:
kuikae_set = [simplified_call + 1, simplified_call + 2]
if simplified_meld_0 in kuikae_set and simplified_meld_1 in kuikae_set:
kuikae = True
if kuikae:
tile_str = TilesConverter.to_one_line_string(
[selected_tile.tile_to_discard_136], print_aka_dora=self.player.table.has_aka_dora
)
self.player.logger.debug(
log.MELD_DEBUG,
f"Kuikae discard {tile_str} candidate. Abort melding.",
)
continue
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,
}
)
if not final_results:
self.player.logger.debug(log.MELD_DEBUG, "There are no good discards after melding.")
return None
final_results = sorted(
final_results,
key=lambda x: (x["discard_tile"].shanten, -x["discard_tile"].ukeire, x["discard_tile"].valuation),
)
self.player.logger.debug(
log.MELD_PREPARE,
"Tiles could be used for open meld",
context=final_results,
)
return final_results[0]
def try_to_call_meld(self, tile, is_kamicha_discard):
"""
When bot can open hand with a set (chi or pon/kan) this method will be called
:param tile: 136 format tile
:param is_kamicha_discard: boolean
:return: Meld and DiscardOption objects or None, None
"""
# can't call if in riichi
if self.player.in_riichi:
return None, None
closed_hand = self.player.closed_hand[:]
# check for appropriate hand size, seems to solve a bug
if len(closed_hand) == 1:
return None, None
# get old shanten value
old_tiles_34 = TilesConverter.to_34_array(self.player.tiles)
old_shanten = self.shanten.calculate_shanten(old_tiles_34, self.player.open_hand_34_tiles)
# setup
discarded_tile = tile // 4
new_closed_hand_34 = TilesConverter.to_34_array(closed_hand + [tile])
# We will use hand_divider to find possible melds involving the discarded tile.
# Check its suit and number to narrow the search conditions
# skipping this will break the default mahjong functions
combinations = []
first_index = 0
second_index = 0
if is_man(discarded_tile):
first_index = 0
second_index = 8
elif is_pin(discarded_tile):
first_index = 9
second_index = 17
elif is_sou(discarded_tile):
first_index = 18
second_index = 26
if second_index == 0:
# honor tiles
if new_closed_hand_34[discarded_tile] == 3:
combinations = [[[discarded_tile] * 3]]
else:
# to avoid not necessary calculations
# we can check only tiles around +-2 discarded tile
first_limit = discarded_tile - 2
if first_limit < first_index:
first_limit = first_index
second_limit = discarded_tile + 2
if second_limit > second_index:
second_limit = second_index
combinations = self.hand_divider.find_valid_combinations(new_closed_hand_34,
first_limit,
second_limit, True)
# Reduce combinations to list of melds
if combinations:
combinations = combinations[0]
# Verify that a meld can be called
possible_melds = []
for meld_34 in combinations:
# we can call pon from everyone
if is_pon(meld_34) and discarded_tile in meld_34:
if meld_34 not in possible_melds:
possible_melds.append(meld_34)
# we can call chi only from left player
if is_chi(meld_34) and is_kamicha_discard and discarded_tile in meld_34:
if meld_34 not in possible_melds:
possible_melds.append(meld_34)
# For each possible meld, check if calling it and discarding can improve shanten
new_shanten = float('inf')
discard_136 = None
tiles = None
for meld_34 in possible_melds:
shanten, disc = self.meldDiscard(meld_34, tile)
if shanten < new_shanten:
new_shanten, discard_136 = shanten, disc
tiles = meld_34
# If shanten can be improved by calling meld, call it
if new_shanten < old_shanten:
meld = Meld()
meld.type = is_chi(tiles) and Meld.CHI or Meld.PON
# convert meld tiles back to 136 format for Meld type return
# find them in a copy of the closed hand and remove
tiles.remove(discarded_tile)
first_tile = TilesConverter.find_34_tile_in_136_array(tiles[0], closed_hand)
closed_hand.remove(first_tile)
second_tile = TilesConverter.find_34_tile_in_136_array(tiles[1], closed_hand)
closed_hand.remove(second_tile)
tiles_136 = [
first_tile,
second_tile,
tile
]
discard_136 = TilesConverter.find_34_tile_in_136_array(discard_136 // 4, closed_hand)
meld.tiles = sorted(tiles_136)
return meld, discard_136
return None, None
def try_to_call_meld(self, tile, is_kamicha_discard):
"""
Determine should we call a meld or not.
If yes, it will return Meld object and tile to discard
:param tile: 136 format tile
:param is_kamicha_discard: boolean
:return: Meld and DiscardOption objects
"""
if self.player.in_riichi:
return None, None
if self.player.ai.in_defence:
return None, None
closed_hand = self.player.closed_hand[:]
# we can't open hand anymore
if len(closed_hand) == 1:
return None, None
# we can't use this tile for our chosen strategy
if not self.is_tile_suitable(tile):
return None, None
discarded_tile = tile // 4
new_tiles = self.player.tiles[:] + [tile]
closed_hand_34 = TilesConverter.to_34_array(closed_hand + [tile])
combinations = []
first_index = 0
second_index = 0
if is_man(discarded_tile):
first_index = 0
second_index = 8
elif is_pin(discarded_tile):
first_index = 9
second_index = 17
elif is_sou(discarded_tile):
first_index = 18
second_index = 26
if second_index == 0:
# honor tiles
if closed_hand_34[discarded_tile] == 3:
combinations = [[[discarded_tile] * 3]]
else:
# to avoid not necessary calculations
# we can check only tiles around +-2 discarded tile
first_limit = discarded_tile - 2
if first_limit < first_index:
first_limit = first_index
second_limit = discarded_tile + 2
if second_limit > second_index:
second_limit = second_index
combinations = self.player.ai.hand_divider.find_valid_combinations(closed_hand_34,
first_limit,
second_limit, True)
if combinations:
combinations = combinations[0]
possible_melds = []
for best_meld_34 in combinations:
# we can call pon from everyone
if is_pon(best_meld_34) and discarded_tile in best_meld_34:
if best_meld_34 not in possible_melds:
possible_melds.append(best_meld_34)
# we can call chi only from left player
if is_chi(best_meld_34) and is_kamicha_discard and discarded_tile in best_meld_34:
if best_meld_34 not in possible_melds:
possible_melds.append(best_meld_34)
# we can call melds only with allowed tiles
validated_melds = []
for meld in possible_melds:
if (self.is_tile_suitable(meld[0] * 4) and
self.is_tile_suitable(meld[1] * 4) and
self.is_tile_suitable(meld[2] * 4)):
validated_melds.append(meld)
possible_melds = validated_melds
if not possible_melds:
return None, None
best_meld_34 = self._find_best_meld_to_open(possible_melds, new_tiles)
if best_meld_34:
# we need to calculate count of shanten with supposed meld
# to prevent bad hand openings
melds = self.player.open_hand_34_tiles + [best_meld_34]
outs_results, shanten = self.player.ai.calculate_outs(new_tiles, closed_hand, melds)
# each strategy can use their own value to min shanten number
if shanten > self.min_shanten:
return None, None
# we can't improve hand, so we don't need to open it
if not outs_results:
return None, None
# sometimes we had to call tile, even if it will not improve our hand
# otherwise we can call only with improvements of shanten
if not self.meld_had_to_be_called(tile) and shanten >= self.player.ai.previous_shanten:
return None, None
meld_type = is_chi(best_meld_34) and Meld.CHI or Meld.PON
best_meld_34.remove(discarded_tile)
first_tile = TilesConverter.find_34_tile_in_136_array(best_meld_34[0], closed_hand)
closed_hand.remove(first_tile)
second_tile = TilesConverter.find_34_tile_in_136_array(best_meld_34[1], closed_hand)
closed_hand.remove(second_tile)
tiles = [
first_tile,
second_tile,
tile
]
meld = Meld()
meld.type = meld_type
meld.tiles = sorted(tiles)
# we had to be sure that all our discard results exists in the closed hand
filtered_results = []
for result in outs_results:
if result.find_tile_in_hand(closed_hand):
filtered_results.append(result)
# we can't discard anything, so let's not open our hand
if not filtered_results:
return None, None
selected_tile = self.player.ai.process_discard_options_and_select_tile_to_discard(
filtered_results,
shanten,
had_was_open=True
)
return meld, selected_tile
return None, None
def try_to_call_meld(self, tile, is_kamicha_discard, new_tiles):
"""
Determine should we call a meld or not.
If yes, it will return Meld object and tile to discard
:param tile: 136 format tile
:param is_kamicha_discard: boolean
:param new_tiles:
:return: Meld and DiscardOption objects
"""
if self.player.in_riichi:
return None, None
if self.player.ai.in_defence:
return None, None
closed_hand = self.player.closed_hand[:]
# we can't open hand anymore
if len(closed_hand) == 1:
return None, None
# we can't use this tile for our chosen strategy
if not self.is_tile_suitable(tile):
return None, None
discarded_tile = tile // 4
closed_hand_34 = TilesConverter.to_34_array(closed_hand + [tile])
combinations = []
first_index = 0
second_index = 0
if is_man(discarded_tile):
first_index = 0
second_index = 8
elif is_pin(discarded_tile):
first_index = 9
second_index = 17
elif is_sou(discarded_tile):
first_index = 18
second_index = 26
if second_index == 0:
# honor tiles
if closed_hand_34[discarded_tile] == 3:
combinations = [[[discarded_tile] * 3]]
else:
# to avoid not necessary calculations
# we can check only tiles around +-2 discarded tile
first_limit = discarded_tile - 2
if first_limit < first_index:
first_limit = first_index
second_limit = discarded_tile + 2
if second_limit > second_index:
second_limit = second_index
combinations = self.player.ai.hand_divider.find_valid_combinations(
closed_hand_34,
first_limit,
second_limit,
True
)
if combinations:
combinations = combinations[0]
possible_melds = []
for best_meld_34 in combinations:
# we can call pon from everyone
if is_pon(best_meld_34) and discarded_tile in best_meld_34:
if best_meld_34 not in possible_melds:
possible_melds.append(best_meld_34)
# we can call chi only from left player
if is_chi(best_meld_34) and is_kamicha_discard and discarded_tile in best_meld_34:
if best_meld_34 not in possible_melds:
possible_melds.append(best_meld_34)
# we can call melds only with allowed tiles
validated_melds = []
for meld in possible_melds:
if (self.is_tile_suitable(meld[0] * 4) and
self.is_tile_suitable(meld[1] * 4) and
self.is_tile_suitable(meld[2] * 4)):
validated_melds.append(meld)
possible_melds = validated_melds
if not possible_melds:
return None, None
chosen_meld = self._find_best_meld_to_open(possible_melds, new_tiles, closed_hand, tile)
selected_tile = chosen_meld['discard_tile']
meld = chosen_meld['meld']
shanten = selected_tile.shanten
had_to_be_called = self.meld_had_to_be_called(tile)
had_to_be_called = had_to_be_called or selected_tile.had_to_be_discarded
# each strategy can use their own value to min shanten number
if shanten > self.min_shanten:
return None, None
# sometimes we had to call tile, even if it will not improve our hand
# otherwise we can call only with improvements of shanten
if not had_to_be_called and shanten >= self.player.ai.shanten:
return None, None
return meld, selected_tile
def try_to_call_meld(self, tile, is_kamicha_discard, new_tiles):
"""
Determine should we call a meld or not.
If yes, it will return MeldPrint object and tile to discard
:param tile: 136 format tile
:param is_kamicha_discard: boolean
:param new_tiles:
:return: MeldPrint and DiscardOption objects
"""
if self.player.in_riichi:
return None, None
closed_hand = self.player.closed_hand[:]
# we can't open hand anymore
if len(closed_hand) == 1:
return None, None
# we can't use this tile for our chosen strategy
if not self.is_tile_suitable(tile):
return None, None
discarded_tile = tile // 4
closed_hand_34 = TilesConverter.to_34_array(closed_hand + [tile])
combinations = []
first_index = 0
second_index = 0
if is_man(discarded_tile):
first_index = 0
second_index = 8
elif is_pin(discarded_tile):
first_index = 9
second_index = 17
elif is_sou(discarded_tile):
first_index = 18
second_index = 26
if second_index == 0:
# honor tiles
if closed_hand_34[discarded_tile] == 3:
combinations = [[[discarded_tile] * 3]]
else:
# to avoid not necessary calculations
# we can check only tiles around +-2 discarded tile
first_limit = discarded_tile - 2
if first_limit < first_index:
first_limit = first_index
second_limit = discarded_tile + 2
if second_limit > second_index:
second_limit = second_index
combinations = self.player.ai.hand_divider.find_valid_combinations(
closed_hand_34, first_limit, second_limit, True
)
if combinations:
combinations = combinations[0]
possible_melds = []
for best_meld_34 in combinations:
# we can call pon from everyone
if is_pon(best_meld_34) and discarded_tile in best_meld_34:
if best_meld_34 not in possible_melds:
possible_melds.append(best_meld_34)
# we can call chi only from left player
if is_chi(best_meld_34) and is_kamicha_discard and discarded_tile in best_meld_34:
if best_meld_34 not in possible_melds:
possible_melds.append(best_meld_34)
# we can call melds only with allowed tiles
validated_melds = []
for meld in possible_melds:
if (
self.is_tile_suitable(meld[0] * 4)
and self.is_tile_suitable(meld[1] * 4)
and self.is_tile_suitable(meld[2] * 4)
):
validated_melds.append(meld)
possible_melds = validated_melds
if not possible_melds:
return None, None
chosen_meld_dict = self._find_best_meld_to_open(tile, possible_melds, new_tiles, closed_hand, tile)
# we didn't find a good discard candidate after open meld
if not chosen_meld_dict:
return None, None
selected_tile = chosen_meld_dict["discard_tile"]
meld = chosen_meld_dict["meld"]
shanten = selected_tile.shanten
had_to_be_called = self.meld_had_to_be_called(tile)
had_to_be_called = had_to_be_called or selected_tile.had_to_be_discarded
# each strategy can use their own value to min shanten number
if shanten > self.min_shanten:
self.player.logger.debug(
log.MELD_DEBUG,
"After meld shanten is too high for our strategy. Abort melding.",
)
return None, None
# sometimes we had to call tile, even if it will not improve our hand
# otherwise we can call only with improvements of shanten
if not had_to_be_called and shanten >= self.player.ai.shanten:
self.player.logger.debug(
log.MELD_DEBUG,
"Meld is not improving hand shanten. Abort melding.",
)
return None, None
if not self.validate_meld(chosen_meld_dict):
self.player.logger.debug(
log.MELD_DEBUG,
"Meld is suitable for strategy logic. Abort melding.",
)
return None, None
if not self.should_push_against_threats(chosen_meld_dict):
self.player.logger.debug(
log.MELD_DEBUG,
"Meld is too dangerous to call. Abort melding.",
)
return None, None
return meld, selected_tile
def calculate_value(self):
# base is 100 for ability to mark tiles as not needed (like set value to 50)
value = 100
honored_value = 20
if is_honor(self.tile_to_discard):
if self.tile_to_discard in self.player.valued_honors:
count_of_winds = [x for x in self.player.valued_honors if x == self.tile_to_discard]
# for west-west, east-east we had to double tile value
value += honored_value * len(count_of_winds)
else:
# aim for tanyao
if self.player.ai.current_strategy and self.player.ai.current_strategy.type == BaseStrategy.TANYAO:
suit_tile_grades = [10, 20, 30, 50, 40, 50, 30, 20, 10]
# usual hand
else:
suit_tile_grades = [10, 20, 40, 50, 30, 50, 40, 20, 10]
simplified_tile = simplify(self.tile_to_discard)
value += suit_tile_grades[simplified_tile]
for indicator in self.player.table.dora_indicators:
indicator_34 = indicator // 4
if is_honor(indicator_34):
continue
# indicator and tile not from the same suit
if is_sou(indicator_34) and not is_sou(self.tile_to_discard):
continue
# indicator and tile not from the same suit
if is_man(indicator_34) and not is_man(self.tile_to_discard):
continue
# indicator and tile not from the same suit
if is_pin(indicator_34) and not is_pin(self.tile_to_discard):
continue
simplified_indicator = simplify(indicator_34)
simplified_dora = simplified_indicator + 1
# indicator is 9 man
if simplified_dora == 9:
simplified_dora = 0
# tile so close to the dora
if simplified_tile + 1 == simplified_dora or simplified_tile - 1 == simplified_dora:
value += DiscardOption.DORA_FIRST_NEIGHBOUR
# tile not far away from dora
if simplified_tile + 2 == simplified_dora or simplified_tile - 2 == simplified_dora:
value += DiscardOption.DORA_SECOND_NEIGHBOUR
count_of_dora = plus_dora(self.tile_to_discard * 4, self.player.table.dora_indicators)
tile_136 = self.find_tile_in_hand(self.player.closed_hand)
if is_aka_dora(tile_136, self.player.table.has_aka_dora):
count_of_dora += 1
self.count_of_dora = count_of_dora
value += count_of_dora * DiscardOption.DORA_VALUE
if is_honor(self.tile_to_discard):
# depends on how much honor tiles were discarded
# we will decrease tile value
discard_percentage = [100, 75, 20, 0, 0]
discarded_tiles = self.player.table.revealed_tiles[self.tile_to_discard]
value = (value * discard_percentage[discarded_tiles]) / 100
# three honor tiles were discarded,
# so we don't need this tile anymore
if value == 0:
self.had_to_be_discarded = True
self.valuation = int(value)
def calculate_valuation(self):
# base is 100 for ability to mark tiles as not needed (like set value to 50)
value = 100
honored_value = 20
if is_honor(self.tile_to_discard_34):
if self.tile_to_discard_34 in self.player.valued_honors:
count_of_winds = [
x for x in self.player.valued_honors
if x == self.tile_to_discard_34
]
# for west-west, east-east we had to double tile value
value += honored_value * len(count_of_winds)
else:
# aim for tanyao
if self.player.ai.current_strategy and self.player.ai.current_strategy.type == BaseStrategy.TANYAO:
suit_tile_grades = [10, 20, 30, 50, 40, 50, 30, 20, 10]
# usual hand
else:
suit_tile_grades = [10, 20, 40, 50, 30, 50, 40, 20, 10]
simplified_tile = simplify(self.tile_to_discard_34)
value += suit_tile_grades[simplified_tile]
for indicator in self.player.table.dora_indicators:
indicator_34 = indicator // 4
if is_honor(indicator_34):
continue
# indicator and tile not from the same suit
if is_sou(indicator_34) and not is_sou(
self.tile_to_discard_34):
continue
# indicator and tile not from the same suit
if is_man(indicator_34) and not is_man(
self.tile_to_discard_34):
continue
# indicator and tile not from the same suit
if is_pin(indicator_34) and not is_pin(
self.tile_to_discard_34):
continue
simplified_indicator = simplify(indicator_34)
simplified_dora = simplified_indicator + 1
# indicator is 9 man
if simplified_dora == 9:
simplified_dora = 0
# tile so close to the dora
if simplified_tile + 1 == simplified_dora or simplified_tile - 1 == simplified_dora:
value += DiscardOption.DORA_FIRST_NEIGHBOUR
# tile not far away from dora
if simplified_tile + 2 == simplified_dora or simplified_tile - 2 == simplified_dora:
value += DiscardOption.DORA_SECOND_NEIGHBOUR
count_of_dora = plus_dora(self.tile_to_discard_136,
self.player.table.dora_indicators,
add_aka_dora=self.player.table.has_aka_dora)
self.count_of_dora = count_of_dora
value += count_of_dora * DiscardOption.DORA_VALUE
if is_honor(self.tile_to_discard_34):
# depends on how much honor tiles were discarded
# we will decrease tile value
discard_percentage = [100, 75, 20, 0, 0]
discarded_tiles = self.player.table.revealed_tiles[
self.tile_to_discard_34]
value = (value * discard_percentage[discarded_tiles]) / 100
# three honor tiles were discarded,
# so we don't need this tile anymore
if value == 0:
self.had_to_be_discarded = True
self.valuation = int(value)
def find_suji(self, tiles_136):
tiles_34 = list(set([x // 4 for x in tiles_136]))
suji = []
suits = [[], [], []]
# let's cast each tile to 0-8 presentation
for tile in tiles_34:
if is_man(tile):
suits[0].append(simplify(tile))
if is_pin(tile):
suits[1].append(simplify(tile))
if is_sou(tile):
suits[2].append(simplify(tile))
for x in range(0, 3):
simplified_tiles = suits[x]
base = x * 9
# 1-4-7
if 3 in simplified_tiles:
suji.append(self.FIRST_SUJI + base)
# double 1-4-7
if 0 in simplified_tiles and 6 in simplified_tiles:
suji.append(self.FIRST_SUJI + base)
# 2-5-8
if 4 in simplified_tiles:
suji.append(self.SECOND_SUJI + base)
# double 2-5-8
if 1 in simplified_tiles and 7 in simplified_tiles:
suji.append(self.SECOND_SUJI + base)
# 3-6-9
if 5 in simplified_tiles:
suji.append(self.THIRD_SUJI + base)
# double 3-6-9
if 2 in simplified_tiles and 8 in simplified_tiles:
suji.append(self.THIRD_SUJI + base)
all_suji = list(set(suji))
result = []
for suji in all_suji:
suji_temp = suji % 9
base = suji - suji_temp - 1
if suji_temp == self.FIRST_SUJI:
result += [base + 1, base + 4, base + 7]
if suji_temp == self.SECOND_SUJI:
result += [base + 2, base + 5, base + 8]
if suji_temp == self.THIRD_SUJI:
result += [base + 3, base + 6, base + 9]
return result