def min_max(board_state,
ai,
game,
max_depth,
alpha=-sys.float_info.max,
beta=sys.float_info.max):
# end = False
# if time.time() - max_depth >= 5:
# end = True
if not board_state.legal_moves:
return 0, None
best_score_move = None
new_board = board_state.copy()
new_game = Game()
new_game.board_state = new_board
for move in new_board.legal_moves:
new_board = board_state.copy()
new_board.push(move)
if board_state.turn and new_board.is_checkmate():
return 10000, move
if not board_state.turn and new_board.is_checkmate():
return -10000, move
if board_state.turn and new_board.is_game_over():
return -10, move
if not board_state.turn and new_board.is_game_over():
return 10, move
if max_depth <= 1:
score = best_move(new_board, new_game, ai)
else:
score, _ = min_max(new_board, ai, new_game, max_depth - 1, alpha,
beta)
if board_state.turn:
if score > alpha:
# print(score, ' ', best_score, ' ', best_score_move)
alpha = score
best_score_move = move
else:
if score < beta:
beta = score
best_score_move = move
if alpha >= beta:
break
# print(alpha, not game.board_state.turn)
return alpha if not game.board_state.turn else beta, best_score_move
while True:
# try:
# game.board_state.push(best_move(game, ai, game.board_state.turn))
# except:
# break
# print('ai move \n')
# print(game.board_state)
# if game.board_state.is_checkmate():
# shutil.copyfile(path, "random_"+path)
# if game.board_state.is_game_over():
# break
time_move = time.time()
# try:
board_state = game.board_state.copy()
move = min_max_NN.min_max_player(board_state, ai, game)
game.board_state = board_state
game.board_state.push(move)
print('ai move \n')
print(game.board_state)
# if game.board_state.is_checkmate():
# shutil.copyfile(path, "NN_" + path)
if game.board_state.is_game_over():
break
# except:
# break
print(time.time() - time_move)
# input('wcisnij enter')
# board_state = game.board_state.copy()
# move = min_max.min_max_player(board_state, ai, game)