def isgameover(self, board, colour):
if(self.playercolor == "white"):
if(colour > 0):
pawn_move = -1
else:
pawn_move = 1
else:
if(colour < 0):
pawn_move = 1
else:
pawn_move = -1
if(colour < 0): # when satisfied want to check whether white king is locked
for i in range(8):
for j in range(8):
if(board[i][j] > 0):
f = PieceMap.getFun(board[i][j])
if(abs(board[i][j]) == 6):
moves = f([i,j],board,pawn_move)
else:
moves = f([i,j],board)
start = board[i][j]
for m in moves:
#changing the board and sending to if check and then again reversing the board
end = board[m[0]][m[1]]
board[m[0]][m[1]] = start
board[i][j] = 0
if(not self.ischeck(board,colour *-1)):
board[i][j] = start
board[m[0]][m[1]] = end
return False
else:
board[i][j] = start
board[m[0]][m[1]] = end
elif(colour > 0): # when satisfied want to check whether black king is locked
for i in range(8):
for j in range(8):
if(board[i][j] < 0):
f = PieceMap.getFun(board[i][j])
if(abs(board[i][j]) == 6):
moves = f([i,j],board,pawn_move)
else:
moves = f([i,j],board)
start = board[i][j]
for m in moves:
#changing the board and sending to if check and then again reversing the board
end = board[m[0]][m[1]]
board[m[0]][m[1]] = start
board[i][j] = 0
if(not self.ischeck(board, colour * -1)):
board[i][j] = start
board[m[0]][m[1]] = end
return False
else:
board[i][j] = start
board[m[0]][m[1]] = end
return True
def quiescence1(self, player, state, alpha, beta, depth):
best = self.evolution(state, player) * player
if(best >= beta):
return best
if(self.b.playercolor == "white"):
if(player > 0):
pawn_move = -1
else:
pawn_move = 1
else:
if(player < 0):
pawn_move = 1
else:
pawn_move = -1
for i in range(8):
for j in range(8):
if(state[i][j] * player > 0):
f = PieceMap.getCaptureFun(state[i][j])
moves = []
if(abs(state[i][j]) == 6):
moves = f([i,j],state,pawn_move)
elif(abs(state[i][j] != 0)):
moves = f([i,j],state)
if(depth <= 0 and len(moves) <= 0):
continue
for move in moves:
t = state[move[0]][move[1]]
state[move[0]][move[1]] = state[i][j]
temp = -self.quiescence1(-player, [[x for x in y] for y in state], -beta, max(alpha, best), depth-1)
state[move[0]][move[1]] = t
best = max(temp, best)
if(best >= beta):
return best
return best
def ischeck(self, board, colour):
if(self.playercolor == "white"):
if(colour > 0):
pawn_move = 1
else:
pawn_move = -1
else:
if(colour < 0):
pawn_move = -1
else:
pawn_move = 1
bK = wK = None
for i in range(8):
for j in range(8):
if(board[i][j] == -1):
bK = [i,j]
elif(board[i][j] == 1):
wK = [i,j]
if(bK == None or wK == None):
print("ennamo nadakuthu")
return True
if(colour < 0): #when satisfied want to check whether black king in danger
for i in range(8):
for j in range(8):
if(board[i][j] > 0):
f = PieceMap.getFun(board[i][j])
if(abs(board[i][j]) == 6):
moves = f([i,j],board,pawn_move)
else:
moves = f([i,j],board)
if(bK in moves):
return True
elif(colour > 0): #when satisfied want to check whether white king in danger
for i in range(8):
for j in range(8):
if(board[i][j] < 0 ):
f = PieceMap.getFun(board[i][j])
if(abs(board[i][j]) == 6):
moves = f([i,j],board,pawn_move)
else:
moves = f([i,j],board)
if(wK in moves):
return True
return False
def evolution2(self, board, player):
wmobility = bmobility = piecescore = 0
if (self.b.playercolor == "white"):
if (player > 0):
pawn_move = -1
else:
pawn_move = 1
else:
if (player < 0):
pawn_move = 1
else:
pawn_move = -1
MD = PA = MT = 0
for i in range(8):
for j in range(8):
if (board[i][j] > 0):
MD += PieceMap.getPoints(board[i][j])
MT += PieceMap.getPoints(board[i][j])
elif (board[i][j] < 0):
MD -= PieceMap.getPoints(board[i][j])
MT += PieceMap.getPoints(board[i][j])
if (board[i][j] * player < 0 and abs(board[i][j]) == 6):
PA += 1
if (player > 0):
f = PieceMap.getFun(board[i][j])
moves = []
if (abs(board[i][j]) == 6):
moves = f([i, j], board, pawn_move)
elif (abs(board[i][j] != 0)):
moves = f([i, j], board)
wmobility += len(moves)
else:
f = PieceMap.getFun(board[i][j])
moves = []
if (abs(board[i][j]) == 6):
moves = f([i, j], board, pawn_move)
elif (abs(board[i][j]) != 0):
moves = f([i, j], board)
bmobility += len(moves)
if (board[i][j] * player > 0):
piecescore += PieceMap.getPieceScore(
board[i][j], i, j, player)
MD = abs(MD)
MS = min(24000, MD) + ((MD * PA * (80000 - MT)) / (64000 * (PA + 1)))
materialscore = min(31000, MS)
mobilityscore = 0.1 * (wmobility - bmobility) * player
return (materialscore + mobilityscore) * player
def evolution3(self, board, player):
materialscore = wmobility = bmobility = piecescore = 0
if (self.b.playercolor == "white"):
if (player > 0):
pawn_move = -1
else:
pawn_move = 1
else:
if (player < 0):
pawn_move = 1
else:
pawn_move = -1
for i in range(8):
for j in range(8):
if (player > 0):
if (board[i][j] > 0):
materialscore += PieceMap.getPoints(board[i][j])
elif (board[i][j] < 0):
materialscore -= PieceMap.getPoints(board[i][j])
f = PieceMap.getFun(board[i][j])
moves = []
if (abs(board[i][j]) == 6):
moves = f([i, j], board, pawn_move)
elif (abs(board[i][j] != 0)):
moves = f([i, j], board)
wmobility += len(moves)
else:
if (board[i][j] > 0):
materialscore -= PieceMap.getPoints(board[i][j])
elif (board[i][j] < 0):
materialscore += PieceMap.getPoints(board[i][j])
f = PieceMap.getFun(board[i][j])
moves = []
if (abs(board[i][j]) == 6):
moves = f([i, j], board, pawn_move)
elif (abs(board[i][j]) != 0):
moves = f([i, j], board)
bmobility += len(moves)
if (board[i][j] * player > 0):
piecescore += PieceMap.getPieceScore(
board[i][j], i, j, player)
mobilityscore = 0.1 * (wmobility - bmobility) * player
return (materialscore + mobilityscore + piecescore) * player
def capture_successor(self, colour, board):
allmoves = []
if(self.playercolor == "white"):
if(colour > 0):
pawn_move = -1
else:
pawn_move = 1
else:
if(colour < 0):
pawn_move = 1
else:
pawn_move = -1
if(colour > 0):
for i in range(8):
for j in range(8):
if(board[i][j] > 0):
start = board[i][j]
#f = PieceMap.getFun(board[i][j])
f = PieceMap.getCaptureFun(board[i][j])
if(abs(board[i][j]) == 6):
moves = f([i,j],board,pawn_move)
else:
moves = f([i,j],board)
'''
if(len(moves) <= 0):
f = PieceMap.getFun(board[i][j])
if(abs(board[i][j]) == 6):
moves = f([i,j],board,pawn_move)
else:
moves = f([i,j],board)
'''
for move in moves:
end = board[move[0]][move[1]]
board[i][j] = 0
board[move[0]][move[1]] = start
if(not self.ischeck(board, colour)):
allmoves.append([[_i for _i in _j] for _j in board])
board[i][j] = start
board[move[0]][move[1]] = end
elif(colour < 0):
for i in range(8):
for j in range(8):
if(board[i][j] < 0):
start = board[i][j]
f = PieceMap.getFun(board[i][j])
#f = PieceMap.getCaptureFun(board[i][j])
if(abs(board[i][j]) == 6):
moves = f([i,j],board,pawn_move)
else:
moves = f([i,j],board)
'''
if(len(moves) <= 0):
f = PieceMap.getFun(board[i][j])
if(abs(board[i][j]) == 6):
moves = f([i,j],board,pawn_move)
else:
moves = f([i,j],board)
'''
for move in moves:
end = board[move[0]][move[1]]
board[i][j] = 0
board[move[0]][move[1]] = start
if(not self.ischeck(board, colour)):
allmoves.append([[_i for _i in _j] for _j in board])
board[i][j] = start
board[move[0]][move[1]] = end
return allmoves