def generate_pseudo_legal_drops(self, to_mask=chess.BB_ALL):
to_mask = to_mask & ~self.occupied
to_square = chess.bit_scan(to_mask)
while to_square != -1 and to_square is not None:
for pt, count in self.pockets[self.turn].pieces.items():
if count and (pt != chess.PAWN or not chess.BB_BACKRANKS & chess.BB_SQUARES[to_square]):
yield chess.Move(to_square, to_square, drop=pt)
to_square = chess.bit_scan(to_mask, to_square + 1)
def generate_pseudo_legal_drops(self, to_mask=chess.BB_ALL):
to_mask = to_mask & ~self.occupied
to_square = chess.bit_scan(to_mask)
while to_square != -1 and to_square is not None:
for pt, count in self.pockets[self.turn].pieces.items():
if count and (pt != chess.PAWN or not chess.BB_BACKRANKS & chess.BB_SQUARES[to_square]):
yield chess.Move(to_square, to_square, drop=pt)
to_square = chess.bit_scan(to_mask, to_square + 1)
def _kings_connected(self):
kings = self.kings & self.occupied_co[chess.WHITE]
king_square = chess.bit_scan(kings)
while king_square != -1 and king_square is not None:
if chess.BB_KING_ATTACKS[king_square] & self.kings & self.occupied_co[chess.BLACK]:
return True
king_square = chess.bit_scan(kings, king_square + 1)
return False
def _attacked_for_king(self, path):
# Can castle onto attacked squares if they are connected to the
# enemy king.
enemy_kings = self.kings & self.occupied_co[not self.turn]
enemy_king = chess.bit_scan(enemy_kings)
while enemy_king != -1 and enemy_king is not None:
path &= ~chess.BB_KING_ATTACKS[enemy_king]
enemy_king = chess.bit_scan(enemy_kings, enemy_king + 1)
return super(AtomicBoard, self)._attacked_for_king(path)
def _push_capture(self, move, capture_square, piece_type, was_promoted):
# Explode the capturing piece.
self._remove_piece_at(move.to_square)
# Explode all non pawns around.
explosion_radius = chess.BB_KING_ATTACKS[capture_square] & ~self.pawns
explosion = chess.bit_scan(explosion_radius)
while explosion != -1 and explosion is not None:
self._remove_piece_at(explosion)
explosion = chess.bit_scan(explosion_radius, explosion + 1)
def _attacked_for_king(self, path):
# Can castle onto attacked squares if they are connected to the
# enemy king.
enemy_kings = self.kings & self.occupied_co[not self.turn]
enemy_king = chess.bit_scan(enemy_kings)
while enemy_king != -1 and enemy_king is not None:
path &= ~chess.BB_KING_ATTACKS[enemy_king]
enemy_king = chess.bit_scan(enemy_kings, enemy_king + 1)
return super(AtomicBoard, self)._attacked_for_king(path)
def _kings_connected(self):
kings = self.kings & self.occupied_co[chess.WHITE]
king_square = chess.bit_scan(kings)
while king_square != -1 and king_square is not None:
if chess.BB_KING_ATTACKS[king_square] & self.kings & self.occupied_co[chess.BLACK]:
return True
king_square = chess.bit_scan(kings, king_square + 1)
return False
def _push_capture(self, move, capture_square, piece_type, was_promoted):
# Explode the capturing piece.
self._remove_piece_at(move.to_square)
# Explode all non pawns around.
explosion_radius = chess.BB_KING_ATTACKS[move.to_square] & ~self.pawns
explosion = chess.bit_scan(explosion_radius)
while explosion != -1 and explosion is not None:
self._remove_piece_at(explosion)
explosion = chess.bit_scan(explosion_radius, explosion + 1)
# Destroy castling rights.
self.castling_rights &= ~explosion_radius
def legal_drop_squares_mask(self):
king_bb = self.kings & self.occupied_co[self.turn]
king_square = chess.bit_scan(king_bb)
if king_square is None or king_square == -1:
return ~self.occupied
king_attackers = self.attackers_mask(not self.turn, king_square)
num_attackers = chess.pop_count(king_attackers)
if num_attackers == 0:
return ~self.occupied
elif num_attackers == 1:
king_rank_mask = chess.RANK_MASK[king_bb]
king_file_mask = chess.FILE_MASK[king_bb]
king_diag_ne = chess.DIAG_MASK_NE[king_bb]
king_diag_nw = chess.DIAG_MASK_NW[king_bb]
if king_rank_mask == chess.RANK_MASK[king_attackers]:
rank_pieces = king_rank_mask & self.occupied
return chess.RANK_ATTACKS[king_bb][rank_pieces] & ~self.occupied & chess.RANK_ATTACKS[king_attackers][rank_pieces]
elif king_file_mask == chess.FILE_MASK[king_attackers]:
file_pieces = king_file_mask & self.occupied
return chess.FILE_ATTACKS[king_bb][file_pieces] & ~self.occupied & chess.FILE_ATTACKS[king_attackers][file_pieces]
elif king_diag_ne == chess.DIAG_MASK_NE[king_attackers]:
ne_pieces = king_diag_ne & self.occupied
return chess.DIAG_ATTACKS_NE[king_bb][ne_pieces] & ~self.occupied & chess.DIAG_ATTACKS_NE[king_attackers][ne_pieces]
elif king_diag_nw == chess.DIAG_MASK_NW[king_attackers]:
nw_pieces = king_diag_nw & self.occupied
return chess.DIAG_ATTACKS_NW[king_bb][nw_pieces] & ~self.occupied & chess.DIAG_ATTACKS_NW[king_attackers][nw_pieces]
return chess.BB_VOID
def legal_drop_squares_mask(self):
king_bb = self.kings & self.occupied_co[self.turn]
king_square = chess.bit_scan(king_bb)
if king_square is None or king_square == -1:
return ~self.occupied
king_attackers = self.attackers_mask(not self.turn, king_square)
num_attackers = chess.pop_count(king_attackers)
if num_attackers == 0:
return ~self.occupied
elif num_attackers == 1:
king_rank_mask = chess.RANK_MASK[king_bb]
king_file_mask = chess.FILE_MASK[king_bb]
king_diag_ne = chess.DIAG_MASK_NE[king_bb]
king_diag_nw = chess.DIAG_MASK_NW[king_bb]
if king_rank_mask == chess.RANK_MASK[king_attackers]:
rank_pieces = king_rank_mask & self.occupied
return chess.RANK_ATTACKS[king_bb][rank_pieces] & ~self.occupied & chess.RANK_ATTACKS[king_attackers][rank_pieces]
elif king_file_mask == chess.FILE_MASK[king_attackers]:
file_pieces = king_file_mask & self.occupied
return chess.FILE_ATTACKS[king_bb][file_pieces] & ~self.occupied & chess.FILE_ATTACKS[king_attackers][file_pieces]
elif king_diag_ne == chess.DIAG_MASK_NE[king_attackers]:
ne_pieces = king_diag_ne & self.occupied
return chess.DIAG_ATTACKS_NE[king_bb][ne_pieces] & ~self.occupied & chess.DIAG_ATTACKS_NE[king_attackers][ne_pieces]
elif king_diag_nw == chess.DIAG_MASK_NW[king_attackers]:
nw_pieces = king_diag_nw & self.occupied
return chess.DIAG_ATTACKS_NW[king_bb][nw_pieces] & ~self.occupied & chess.DIAG_ATTACKS_NW[king_attackers][nw_pieces]
return chess.BB_VOID
def is_variant_end(self):
if not self.kings & chess.BB_RANK_8:
return False
if self.turn == chess.WHITE or self.kings & self.occupied_co[
chess.BLACK] & chess.BB_RANK_8:
return True
black_king = chess.bit_scan(self.kings & self.occupied_co[chess.BLACK])
if black_king is None or black_king == -1:
return True
# White has reached the backrank. The game is over if black can not
# also reach the backrank on the next move. Check if there are any
# safe squares for the king.
targets = chess.BB_KING_ATTACKS[black_king] & chess.BB_RANK_8
target = chess.bit_scan(targets)
while target != -1 and target is not None:
if not self.attackers_mask(chess.WHITE, target):
return False
target = chess.bit_scan(targets, target + 1)
return True
async def update_match_embed(self,
*,
flipped=None,
footer_text=discord.Embed.Empty):
if flipped is None: flipped = not self.turn
# svg = self._repr_svg_()
svg = chess.svg.board(
self,
lastmove=self.peek() if self.move_stack else None,
check=chess.bit_scan(self.kings & self.occupied_co[self.turn])
if self.is_check() else None,
flipped=flipped)
svg = svg.replace("y=\"390\"", "y=\"395\"")
svg = svg.replace("class=\"square light",
"fill=\"#ffce9e\" class=\"square light")
svg = svg.replace("class=\"square dark",
"fill=\"#d18b47\" class=\"square dark")
svg = svg.replace("class=\"check",
"fill=\"url(#check_gradient)\" class=\"check")
svg = svg.replace(
"<stop offset=\"100%\" stop-color=\"rgba(158, 0, 0, 0)\" />",
"<stop offset=\"100%\" stop-color=\"rgba(158, 0, 0, 0)\" stop-opacity=\"0\" />"
)
svg = re.subn(
r"fill=\"#ffce9e\" class=\"square light [a-h][1-8] lastmove\"",
lambda m: m.group(0).replace("ffce9e", "cdd16a"), svg)[0]
svg = re.subn(
r"fill=\"#d18b47\" class=\"square dark [a-h][1-8] lastmove\"",
lambda m: m.group(0).replace("d18b47", "aaa23b"), svg)[0]
with open("data/temp/chess_board.svg", 'w') as image:
print(svg, file=image)
with Image(filename="data/temp/chess_board.svg") as img:
img.format = "png"
img.save(filename="data/temp/chess_board.png")
# asyncio.sleep(0.2) # necessary?, wasn't even awaited
if not self.match_embed:
self.match_embed = discord.Embed(color=clients.bot_color)
'''
with open("data/temp/chess_board.png", "rb") as image:
request = requests.post("http://uploads.im/api", files = {"upload": image})
# import aiohttp
# data = aiohttp.helpers.FormData()
# data.add_field("upload", image, filename = "chess_board.png")
# async with clients.aiohttp_session.post("http://uploads.im/api", data = data) as resp:
# data = await resp.text()
try:
data = request.json()
except:
print(request.text)
return
if data["status_code"] == 403:
await self.bot.send_embed(self.text_channel, ":no_entry: Error: {}".format(data["status_txt"]))
return
# self.match_embed.set_image(url = clients.imgur_client.upload_from_path("data/temp/chess_board.png")["link"])
self.match_embed.set_image(url = data["data"]["img_url"])
'''
cache_channel = self.bot.get_channel(clients.cache_channel_id)
with open("data/temp/chess_board.png", "rb") as image:
image_message = await self.bot.send_file(cache_channel, image)
self.match_embed.set_image(url=image_message.attachments[0]["url"])
self.match_embed.set_footer(text=footer_text)
chess_pgn = chess.pgn.Game.from_board(self)
chess_pgn.headers["Site"] = "Discord"
chess_pgn.headers["Date"] = datetime.datetime.utcnow().strftime(
"%Y.%m.%d")
chess_pgn.headers["White"] = self.white_player.mention
chess_pgn.headers["Black"] = self.black_player.mention
self.match_embed.description = str(chess_pgn)
if not self.match_message:
self.match_message = await self.bot.send_message(
self.text_channel, embed=self.match_embed)
else:
await self.bot.edit_message(self.match_message,
embed=self.match_embed)