def evaluate(self):
self.evaluated_pos += 1
value = self.game.material_value
for sq in range(64):
if( self.game.board[sq] != 0 ):
fig = abs(self.game.board[sq])
color = const.WHITE if self.game.board[sq] > 0 else const.BLACK
value_piece = 0
value_piece += aiv.POSSITION_VALUE[color][fig][sq]
if( fig == const.PAWN ):
#---pawn structure---
#pawn chain
if( self.game.figures[const.PAWN][color] & bb.pawn_attacks[not color][sq] ):
value_piece += aiv.PAWN_IS_IN_CHAIN[color][bb.rank(sq)]
#free pawn
if( not self.game.figures[const.PAWN][not color] & bb.lines[bb.line(sq)] ):
value_piece += aiv.PAWN_FREE[color][bb.rank(sq)]
value += value_piece * (-1 if color else 1)
for color in (0, 1):
if( self.castling_root[color] and self.game.note[1][color] != [0, 0] and not self.castling_move_done ):
value += const.CASTLING_RIGHT_LOSS_PENALTY * (-1 if color else 1)
return value* (-1 if self.game.playerTurn==const.BLACK else 1)
def updateHistoryList(self):
self.gui.history_lb.delete(0, tk.END)
#move = self.game.history[-1][0]
for history_note in self.history:
move = history_note[0]
sq_start = bo.getBits(move, *const.MOVE_START)
sq_dest = bo.getBits(move, *const.MOVE_DEST)
fig_start = bo.getBits(move, *const.MOVE_FIG_START)
fig_cap = bo.getBits(move, *const.MOVE_FIG_CAPTURE)
fig_prom = bo.getBits(move, *const.MOVE_PROM) + 2
move_type = bo.getBits(move, *const.MOVE_TYPE)
color = bo.getBits(move, *const.MOVE_COLOR)
rank_start = bb.rank(sq_start)
rank_dest = bb.rank(sq_dest)
line_start = bb.line(sq_start)
line_dest = bb.line(sq_dest)
comb_chr = '-'
if (fig_cap != 0):
comb_chr = 'x'
suffix = ''
if (move_type == const.PROMOTION):
suffix = " =" + const.ASCII_FIG[color][fig_prom]
history_entry = "%c%c%i%c%c%i%s" % (
const.ASCII_FIG[color][fig_start],
chr(97 + line_start), rank_start + 1, comb_chr,
chr(97 + line_dest), rank_dest + 1, suffix)
self.gui.addToHistory(history_entry)
def updateHistoryList(self):
self.gui.history_lb.delete(0, tk.END)
# move = self.game.history[-1][0]
for history_note in self.history:
move = history_note[0]
sq_start = bo.getBits(move, *const.MOVE_START)
sq_dest = bo.getBits(move, *const.MOVE_DEST)
fig_start = bo.getBits(move, *const.MOVE_FIG_START)
fig_cap = bo.getBits(move, *const.MOVE_FIG_CAPTURE)
fig_prom = bo.getBits(move, *const.MOVE_PROM) + 2
move_type = bo.getBits(move, *const.MOVE_TYPE)
color = bo.getBits(move, *const.MOVE_COLOR)
rank_start = bb.rank(sq_start)
rank_dest = bb.rank(sq_dest)
line_start = bb.line(sq_start)
line_dest = bb.line(sq_dest)
comb_chr = "-"
if fig_cap != 0:
comb_chr = "x"
suffix = ""
if move_type == const.PROMOTION:
suffix = " =" + const.ASCII_FIG[color][fig_prom]
history_entry = "%c%c%i%c%c%i%s" % (
const.ASCII_FIG[color][fig_start],
chr(97 + line_start),
rank_start + 1,
comb_chr,
chr(97 + line_dest),
rank_dest + 1,
suffix,
)
self.gui.addToHistory(history_entry)
def createChessboard(self):
edgeLength= min( self.height, self.width )
#border
self.create_rectangle( 0, 0,
edgeLength, edgeLength,
fill= const.COLORS["border"] )
#tiles
for sq in range(64):
self.create_rectangle( self.getTilePos( sq ),
self.addVec( self.getTilePos( sq ), (self.dispScale*const.DEFAULTTILEWIDTH, self.dispScale*const.DEFAULTTILEWIDTH)),
fill= const.COLORS["tiles"][ (sq+bb.rank(sq))%2 ] )
def createChessboard(self):
edgeLength = min(self.height, self.width)
#border
self.create_rectangle(0,
0,
edgeLength,
edgeLength,
fill=const.COLORS["border"])
#tiles
for sq in range(64):
self.create_rectangle(
self.getTilePos(sq),
self.addVec(self.getTilePos(sq),
(self.dispScale * const.DEFAULTTILEWIDTH,
self.dispScale * const.DEFAULTTILEWIDTH)),
fill=const.COLORS["tiles"][(sq + bb.rank(sq)) % 2])
def isUnderAttack(self, sq, color):
result = False
attack_diag = bb.diagonal_attacks_lr[sq][bb.getDiagonalByteLR(self.all_figures[const.BOTH], sq)] | \
bb.diagonal_attacks_rl[sq][bb.getDiagonalByteRL(self.all_figures[const.BOTH], sq)]
attack_rank_line = bb.line_attacks[sq][bb.getLineByte(self.all_figures[const.BOTH], bb.line(sq))] | \
bb.rank_attacks[sq][bb.getRankByte(self.all_figures[const.BOTH], bb.rank(sq))]
#check for enemys
if( bb.knight_attacks[sq] & self.figures[const.KNIGHT][not color] or \
bb.pawn_attacks[color][sq] & self.figures[const.PAWN][not color] or \
bb.king_attacks[sq] & self.figures[const.KING][not color] or \
attack_diag & self.figures[const.BISHOP][not color] or \
attack_diag & self.figures[const.QUEEN][not color] or \
attack_rank_line & self.figures[const.ROOK][not color] or \
attack_rank_line & self.figures[const.QUEEN][not color] ):
result = True
return result
def getPossibleMoves(self, color):
pieces = self.all_figures[color]
result = []
sq = 0
while(pieces and sq<64):
if(pieces & bb.mask64[sq]):
moves = 0
fig = abs(self.board[sq])
if(fig == const.PAWN ):
#single step
moves |= bb.pawn_singlestep[color][sq] & ~self.all_figures[const.BOTH]
#double step
if(moves):
moves |= bb.pawn_doublestep[color][sq] & ~self.all_figures[const.BOTH]
#capture
moves |= bb.pawn_attacks[color][sq] & self.all_figures[not color]
#en-passant capture
moves |= bb.pawn_attacks[color][sq] & ( self.note[0] << (40 if color==const.WHITE else 16))
elif(fig == const.KING ):
moves |= bb.king_attacks[sq] & ~self.all_figures[const.BOTH]
moves |= (bb.king_attacks[sq] & ~self.all_figures[color] ) & self.all_figures[not color]
#castling
for side in (const.CASTLING_LEFT, const.CASTLING_RIGHT):
if(not self.note[1][color][side] and \
not (bb.castling_no_fig[color][side] & self.all_figures[const.BOTH]) and \
not self.isUnderAttack(bb.castling_no_attack_sq[color][side], color) and \
not self.isUnderAttack(bb.castling_king_start_sq[color], color)):
moves |= bb.castling_king_dest[color][side]
else:
if(fig == const.KNIGHT):
moves |= bb.knight_attacks[sq]
else:
if(fig == const.BISHOP or fig == const.QUEEN):
moves |= bb.diagonal_attacks_lr[sq][bb.getDiagonalByteLR(self.all_figures[const.BOTH], sq)] | \
bb.diagonal_attacks_rl[sq][bb.getDiagonalByteRL(self.all_figures[const.BOTH], sq)]
if(fig == const.ROOK or fig == const.QUEEN):
moves |= bb.line_attacks[sq][bb.getLineByte(self.all_figures[const.BOTH], bb.line(sq))] | \
bb.rank_attacks[sq][bb.getRankByte(self.all_figures[const.BOTH], bb.rank(sq))]
moves &= ~self.all_figures[color]
dest = 0
while(moves and dest<64):
if(moves & bb.mask64[dest]):
move_type = const.NORMAL_MOVE
if(bb.mask64[dest] & self.all_figures[not color]):
move_type = const.CAPTURE
if(fig == const.KING and abs(bb.line(dest)-bb.line(sq)) == 2):
move_type = const.CASTLING
elif(fig == const.PAWN):
if(abs(bb.rank(dest)-bb.rank(sq))==2):
move_type = const.DOUBLE_STEP
elif(bb.line(dest) != bb.line(sq) and self.board[dest] == 0):
move_type = const.ENPASSANT_CAPTURE
elif(bb.rank(dest) == 7-7*color):
move_type = const.PROMOTION
move = move_type | (sq << const.MOVE_START[0]) | (dest << const.MOVE_DEST[0]) | (abs(self.board[sq]) << const.MOVE_FIG_START[0]) | (abs(self.board[dest]) << const.MOVE_FIG_CAPTURE[0]) | (color << const.MOVE_COLOR[0])
if(move_type == const.PROMOTION):
for fig_prom in (const.PROM_KNIGHT, const.PROM_BISHOP, const.PROM_ROOK, const.PROM_QUEEN):
result.append( move | (fig_prom << const.MOVE_PROM[0]) )
else:
result.append(move)
move ^= bb.mask64[dest]
dest +=1
pieces &= ~bb.mask64[sq]
sq += 1
return result
def getTilePos(self, sq):
return ( self.dispScale * ( const.DEFAULTBORDERWIDTH+const.DEFAULTTILEWIDTH*(bb.line(sq)) ), \
self.dispScale * ( const.DEFAULTBORDERWIDTH+const.DEFAULTTILEWIDTH*(7-bb.rank(sq)) ) )
def getTilePos(self, sq):
return ( self.dispScale * ( const.DEFAULTBORDERWIDTH+const.DEFAULTTILEWIDTH*(bb.line(sq)) ), \
self.dispScale * ( const.DEFAULTBORDERWIDTH+const.DEFAULTTILEWIDTH*(7-bb.rank(sq)) ) )
def isUnderAttack(self, sq, color):
result = False
attack_diag = bb.diagonal_attacks_lr[sq][bb.getDiagonalByteLR(self.all_figures[const.BOTH], sq)] | \
bb.diagonal_attacks_rl[sq][bb.getDiagonalByteRL(self.all_figures[const.BOTH], sq)]
attack_rank_line = bb.line_attacks[sq][bb.getLineByte(self.all_figures[const.BOTH], bb.line(sq))] | \
bb.rank_attacks[sq][bb.getRankByte(self.all_figures[const.BOTH], bb.rank(sq))]
#check for enemys
if( bb.knight_attacks[sq] & self.figures[const.KNIGHT][not color] or \
bb.pawn_attacks[color][sq] & self.figures[const.PAWN][not color] or \
bb.king_attacks[sq] & self.figures[const.KING][not color] or \
attack_diag & self.figures[const.BISHOP][not color] or \
attack_diag & self.figures[const.QUEEN][not color] or \
attack_rank_line & self.figures[const.ROOK][not color] or \
attack_rank_line & self.figures[const.QUEEN][not color] ):
result = True
return result
def getPossibleMoves(self, color):
pieces = self.all_figures[color]
result = []
sq = 0
while (pieces and sq < 64):
if (pieces & bb.mask64[sq]):
moves = 0
fig = abs(self.board[sq])
if (fig == const.PAWN):
#single step
moves |= bb.pawn_singlestep[color][sq] & ~self.all_figures[
const.BOTH]
#double step
if (moves):
moves |= bb.pawn_doublestep[color][
sq] & ~self.all_figures[const.BOTH]
#capture
moves |= bb.pawn_attacks[color][sq] & self.all_figures[
not color]
#en-passant capture
moves |= bb.pawn_attacks[color][sq] & (
self.note[0] << (40 if color == const.WHITE else 16))
elif (fig == const.KING):
moves |= bb.king_attacks[sq] & ~self.all_figures[
const.BOTH]
moves |= (bb.king_attacks[sq] & ~self.all_figures[color]
) & self.all_figures[not color]
#castling
for side in (const.CASTLING_LEFT, const.CASTLING_RIGHT):
if(not self.note[1][color][side] and \
not (bb.castling_no_fig[color][side] & self.all_figures[const.BOTH]) and \
not self.isUnderAttack(bb.castling_no_attack_sq[color][side], color) and \
not self.isUnderAttack(bb.castling_king_start_sq[color], color)):
moves |= bb.castling_king_dest[color][side]
else:
if (fig == const.KNIGHT):
moves |= bb.knight_attacks[sq]
else:
if (fig == const.BISHOP or fig == const.QUEEN):
moves |= bb.diagonal_attacks_lr[sq][bb.getDiagonalByteLR(self.all_figures[const.BOTH], sq)] | \
bb.diagonal_attacks_rl[sq][bb.getDiagonalByteRL(self.all_figures[const.BOTH], sq)]
if (fig == const.ROOK or fig == const.QUEEN):
moves |= bb.line_attacks[sq][bb.getLineByte(self.all_figures[const.BOTH], bb.line(sq))] | \
bb.rank_attacks[sq][bb.getRankByte(self.all_figures[const.BOTH], bb.rank(sq))]
moves &= ~self.all_figures[color]
dest = 0
while (moves and dest < 64):
if (moves & bb.mask64[dest]):
move_type = const.NORMAL_MOVE
if (bb.mask64[dest] & self.all_figures[not color]):
move_type = const.CAPTURE
if (fig == const.KING
and abs(bb.line(dest) - bb.line(sq)) == 2):
move_type = const.CASTLING
elif (fig == const.PAWN):
if (abs(bb.rank(dest) - bb.rank(sq)) == 2):
move_type = const.DOUBLE_STEP
elif (bb.line(dest) != bb.line(sq)
and self.board[dest] == 0):
move_type = const.ENPASSANT_CAPTURE
elif (bb.rank(dest) == 7 - 7 * color):
move_type = const.PROMOTION
move = move_type | (sq << const.MOVE_START[0]) | (
dest << const.MOVE_DEST[0]) | (abs(
self.board[sq]) << const.MOVE_FIG_START[0]) | (
abs(self.board[dest]) <<
const.MOVE_FIG_CAPTURE[0]) | (
color << const.MOVE_COLOR[0])
if (move_type == const.PROMOTION):
for fig_prom in (const.PROM_KNIGHT,
const.PROM_BISHOP,
const.PROM_ROOK,
const.PROM_QUEEN):
result.append(move | (
fig_prom << const.MOVE_PROM[0]))
else:
result.append(move)
move ^= bb.mask64[dest]
dest += 1
pieces &= ~bb.mask64[sq]
sq += 1
return result
