def _make_meld(self, meld_type, tiles):
meld = Meld()
meld.who = 0
meld.type = meld_type
meld.tiles = tiles
meld.called_tile = tiles[0]
return meld
def call_meld(self, type, who, from_who, opened, tiles, called_tile):
meld = Meld()
meld.type = type
meld.who = who
meld.from_who = from_who
meld.opened = opened
meld.tiles = tiles
meld.called_tile = called_tile
return meld
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 test_call_meld(self):
client = Client()
client.table.init_round(0, 0, 0, 0, 0, [0, 0, 0, 0])
self.assertEqual(client.table.count_of_remaining_tiles, 70)
meld = Meld()
client.table.add_called_meld(0, meld)
self.assertEqual(len(client.player.melds), 1)
self.assertEqual(client.table.count_of_remaining_tiles, 71)
client.player.tiles = [0]
meld = Meld()
meld.type = Meld.KAN
meld.called_tile = 0
client.table.add_called_meld(0, meld)
self.assertEqual(len(client.player.melds), 2)
# +1 for called meld
# -1 for called kan
self.assertEqual(client.table.count_of_remaining_tiles, 71)
def test_closed_kan_and_riichi(self):
table = Table()
table.count_of_remaining_tiles = 60
player = table.player
player.scores = 25000
kan_tiles = self._string_to_136_array(pin='7777')
tiles = self._string_to_136_array(pin='568',
sou='1235788') + kan_tiles[:3]
player.init_hand(tiles)
# +3 to avoid tile duplication of 7 pin
tile = kan_tiles[3]
player.draw_tile(tile)
kan_type = player.should_call_kan(tile, False)
self.assertEqual(kan_type, Meld.KAN)
meld = Meld()
meld.type = Meld.KAN
meld.tiles = kan_tiles
meld.called_tile = tile
meld.who = 0
meld.from_who = 0
meld.opened = False
# replacement from the dead wall
player.draw_tile(self._string_to_136_tile(pin='4'))
table.add_called_meld(meld.who, meld)
discard = player.discard_tile()
self.assertEqual(self._to_string([discard]), '8p')
self.assertEqual(player.can_call_riichi(), True)
# with closed kan we can't call riichi
player.melds[0].opened = True
self.assertEqual(player.can_call_riichi(), False)
def test_call_meld_kan_from_player(self):
client = Client()
client.table.init_round(0, 0, 0, 0, 0, [0, 0, 0, 0])
self.assertEqual(client.table.count_of_remaining_tiles, 70)
meld = Meld()
client.table.add_called_meld(0, meld)
self.assertEqual(len(client.player.melds), 1)
self.assertEqual(client.table.count_of_remaining_tiles, 71)
client.player.tiles = [0]
meld = Meld()
meld.type = Meld.KAN
# closed kan
meld.tiles = [0, 1, 2, 3]
meld.called_tile = 0
meld.opened = True
client.table.add_called_meld(0, meld)
self.assertEqual(len(client.player.melds), 2)
# kan was called from another player, total number of remaining tiles stays the same
self.assertEqual(client.table.count_of_remaining_tiles, 71)
def test_call_meld_closed_kan(self):
client = Client()
client.table.init_round(0, 0, 0, 0, 0, [0, 0, 0, 0])
self.assertEqual(client.table.count_of_remaining_tiles, 70)
meld = Meld()
client.table.add_called_meld(0, meld)
self.assertEqual(len(client.player.melds), 1)
self.assertEqual(client.table.count_of_remaining_tiles, 71)
client.player.tiles = [0]
meld = Meld()
meld.type = Meld.KAN
# closed kan
meld.tiles = [0, 1, 2, 3]
meld.called_tile = None
meld.opened = False
client.table.add_called_meld(0, meld)
self.assertEqual(len(client.player.melds), 2)
# kan was closed, so -1
self.assertEqual(client.table.count_of_remaining_tiles, 70)
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):
"""
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
