def get_move():
fen_str = request.args.get('fen')
print(fen_str)
if fen_str is None:
return "Provide fen"
ai = Ai()
value, move = ai.get_move(fen_str=fen_str)
return move
def chess_game_loop(self, ai=None, color=None):
initial_square = Square()
drop_square = Square()
# False for ai with white pieces
player_turn = color
white_maximizing = not player_turn
value = 0
square_under_mouse = Square(None, None, None, False)
ai_player = Ai()
while True:
if ai and (not player_turn and not
self.board.board_text.is_game_over()):
value, mv = ai_player.get_move(
white_maximizing=white_maximizing,
board=self.board.board_text)
print("Val:", value)
print("Move:", mv)
self.ai_played_square = mv[2:4]
self.board.board_text.push_uci(mv)
try:
self.board.current_fen = self.board.board_text.fen()
except Exception as e:
print(e)
print("game over")
self.redo_buffer = []
self.move_history.append(mv)
player_turn = not player_turn
self.color_playing = not self.color_playing
if self.board.board_text.is_game_over():
self.board.board_surf.blit(
self.check_mate_text, self.check_mate_text_rect
)
self.board.rect_board = self.board.fen_to_board()
else:
square_under_mouse = self.board.get_square_under_mouse()
events = pygame.event.get()
for e in events:
if e.type == pygame.QUIT:
self.game_init(self.screen_width, self.screen_height)
self.game_intro()
if e.type == pygame.MOUSEBUTTONDOWN:
if square_under_mouse.can_use:
initial_square.set_square(
square_under_mouse.fen_char,
square_under_mouse.x,
square_under_mouse.y,
)
if e.type == pygame.MOUSEBUTTONUP:
if drop_square.can_use:
if initial_square != drop_square:
uci, promotion = self.board.board_to_uci(
initial_square, drop_square
)
legal = (
chess.Move.from_uci(uci)
in self.board.board_text.legal_moves
)
if legal:
self.last_square = drop_square
if promotion:
# add extra uci notation if a player is
# promoting and draw the promotion
# choice menu
uci = uci[:-1] + \
self.board.promotion_loop(
self.game_display,
self.color_playing)
promotion = False
self.board.board_text.push_uci(uci)
try:
self.board.current_fen = \
self.board.board_text.fen()
except Exception as e:
print(e)
print("game over")
self.last_square = uci[2:4]
self.redo_buffer = []
self.move_history.append(uci)
self.board.rect_board = \
self.board.fen_to_board()
player_turn = not player_turn
self.color_playing = not self.color_playing
if self.board.board_text.is_game_over():
self.board.board_surf.blit(
self.check_mate_text,
self.check_mate_text_rect)
initial_square.can_use = False
drop_square.can_use = False
self.move_displayer(self.color_playing)
self.button(
"Undo",
10,
740,
self.screen_width // 8 + 30,
720//8,
self.grey,
self.bright_green,
action=self.undo_move,
board=self.board,
ai=ai
)
self.button(
"Redo",
180,
740,
self.screen_width // 8 + 30,
720//8,
self.grey,
self.bright_green,
action=self.redo_move,
board=self.board,
ai=ai
)
self.button(
"Flip",
350,
740,
self.screen_width // 8 + 30,
720//8,
self.grey,
self.bright_green,
action=self.flip_board,
board=self.board
)
self.game_display.blit(self.board.board_surf, self.board.board_pos)
if self.last_square and not player_turn:
self.board.draw_last_piece(self.game_display, self.last_square)
if ai:
if self.ai_played_square and player_turn:
self.board.draw_last_piece(
self.game_display, self.ai_played_square)
elif self.last_square and player_turn:
self.board.draw_last_piece(self.game_display, self.last_square)
self.board.draw_pieces(self.game_display)
self.board.draw_selector(self.game_display, square_under_mouse)
drop_square = self.board.draw_drag(
self.game_display, initial_square)
# draw a req square around the king if he is in check
if self.board.board_text.is_check():
if not self.color_playing:
self.board.draw_king_check(self.game_display, "k")
else:
self.board.draw_king_check(self.game_display, "K")
pygame.display.flip()
self.clock.tick(60)