def _get_fen_board(self):
pieces = [None] * 64
for sq, pc in self.squares.iteritems():
if pc:
val = piece.str(pc)
if self._get_square_color(sq) == 1:
val = val.upper()
pieces[square.index(sq)] = val
ranks = []
for rank in xrange(8):
count = 0
out = ''
for file in xrange(8):
pc = pieces[square.index(square.from_a8(rank, file))]
if pc is None:
count += 1
if file == 7:
out += '%d' % count
else:
if count:
out += '%d' % count
count = 0
out += pc
ranks.append(out)
return '/'.join(ranks)
def _parse_fen_board(self, board_string):
try:
ranks = board_string.split('/')
board = [[None] * 8 for x in range(8)]
for rank, data in enumerate(ranks):
file = 0
for char in data:
if char.isdigit():
num = int(char)
if num < 1 or num > 8:
raise ValueError('bad integer in board data')
file += num
else:
try:
pc = piece.pc(char)
cl = self._parse_piece_color(char)
self.set_square(square.from_a8(rank, file), pc, cl)
file += 1
except ValueError:
raise ValueError('bad piece in board data')
if file != 8:
raise ValueError('bad number of files')
if rank != 7:
raise ValueError('wrong number of ranks')
return board
except ValueError:
raise
except Exception:
raise
raise ValueError('error parsing fen board data')
def _get_fen_board(self):
pieces = [None] * 64
for sq, pc in self.squares.iteritems():
if pc:
val = piece.str(pc)
if self._get_square_color(sq) == 1:
val = val.upper()
pieces[square.index(sq)] = val
ranks = []
for rank in xrange(8):
count = 0
out = ''
for file in xrange(8):
pc = pieces[square.index(square.from_a8(rank, file))]
if pc is None:
count += 1
if file == 7:
out += '%d' % count
else:
if count:
out += '%d' % count
count = 0
out += pc
ranks.append(out)
return '/'.join(ranks)
def _parse_fen_board(self, board_string):
try:
ranks = board_string.split('/')
board = [[None] * 8 for x in range(8)]
for rank, data in enumerate(ranks):
file = 0
for char in data:
if char.isdigit():
num = int(char)
if num < 1 or num > 8:
raise ValueError('bad integer in board data')
file += num
else:
try:
pc = piece.pc(char)
cl = self._parse_piece_color(char)
self.set_square(square.from_a8(rank, file), pc, cl)
file += 1
except ValueError:
raise ValueError('bad piece in board data')
if file != 8:
raise ValueError('bad number of files')
if rank != 7:
raise ValueError('wrong number of ranks')
return board
except ValueError:
raise
except Exception:
raise
raise ValueError('error parsing fen board data')
def str(bb):
out = []
for rank in xrange(8):
for file in xrange(8):
sq = square.from_a8(rank, file)
out.append(BITS[int(sq & bb != 0)])
out.append("\n")
return ''.join(out)
def __str__(self):
out = []
for rank in xrange(8):
for file in xrange(8):
sq = square.from_a8(rank, file)
piece_str = piece.str(self.squares[sq])
if self.color_bbs[1] & sq:
piece_str = piece_str.upper()
out.append(piece_str)
out.append('\n')
return ''.join(out)
def __str__(self):
out = []
for rank in xrange(8):
for file in xrange(8):
sq = square.from_a8(rank, file)
piece_str = piece.str(self.squares[sq])
if self.color_bbs[1] & sq:
piece_str = piece_str.upper()
out.append(piece_str)
out.append('\n')
return ''.join(out)
def parse(val):
out = 0
val = val.replace('\n', '')
if len(val) != 64:
raise ValueError("invalid size for bitboard: %s" % len(val))
for rank in xrange(8):
for file in xrange(8):
ch = val[(7 - rank) * 8 + file]
if ch not in BITS:
raise ValueError("invalid char in bitboard: %s" % sq)
out += BITS_TO_INT[ch] * square.from_a8(rank, file)
return out
