/
game_loop.py
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/
game_loop.py
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import numpy as np
import pygame as pg
from ai import get_best_move
from ui.button import Button
from ui.captured_piece import CapturedPieceManager
from constants import consts as c
from images import Images
from load_data import get_resource_path
from moves import get_legal_moves
from ui.progress_bar import ProgressBar
from render import draw_everything
from ui.sound_handler import *
from ui.text import Text
from utils import *
def game_loop(screen, player = "white"):
c.chance = "white"
clock = pg.time.Clock()
img = Images()
board = init_board()
board_record = [np.copy(board)]
c.white_captured_pieces = CapturedPieceManager(img, "white", screen)
c.black_captured_pieces = CapturedPieceManager(img, "black", screen)
title_font = pg.font.Font(get_resource_path("fonts/macondo.ttf"), c.title_font_size)
button_font = pg.font.Font(get_resource_path("fonts/macondo.ttf"), c.button_font_size)
c.title_text = Text(c.screen_width / 2, c.screen_height / 15, "Chess AI", screen)
c.title_text.set_font(title_font)
c.restart_button = Button(c.screen_width / 4 - c.button_def, c.button_y, c.button_width, c.button_height, screen, "Restart")
c.restart_button.set_font(button_font)
c.quit_button = Button(3 * c.screen_width / 4 + c.button_def, c.button_y, c.button_width, c.button_height, screen, "Quit")
c.quit_button.set_font(button_font)
progress_bar = ProgressBar(c.progress_x, c.progress_y, c.progress_length, c.progress_thickness, screen)
pg.mixer.music.load(get_resource_path("sounds/bg_music.mp3"))
pg.mixer.music.set_volume(0.5)
music_started = False
c.ai_move = None
c.targeted_squares = None
if player == c.chance:
legal_moves = get_legal_moves(board, c.chance, True)
else:
best_move = get_best_move(board, c.chance, c.search_depth, progress_bar)
make_move_commons(board, best_move)
c.move_sound.play()
board_record.append(np.copy(board))
c.next_turn()
legal_moves = get_legal_moves(board, c.chance, True)
while True:
clock.tick(c.fps)
for event in pg.event.get():
if event.type == pg.QUIT:
pg.quit()
quit()
if event.type == pg.MOUSEMOTION:
mouse_pos = pg.mouse.get_pos()
c.restart_button.update(mouse_pos)
c.quit_button.update(mouse_pos)
if event.type == pg.MOUSEBUTTONDOWN:
mouse_pos = pg.mouse.get_pos()
clicks = event.button
c.restart_button.check_clicked(mouse_pos, clicks)
c.quit_button.check_clicked(mouse_pos, clicks)
if c.restart_button.left_clicked:
# restart game
board = init_board()
board_record = [np.copy(board)]
c.chance = "white"
c.reset_coords()
c.ai_move = None
c.targeted_squares = None
c.white_captured_pieces.get_captured_pieces(board)
c.black_captured_pieces.get_captured_pieces(board)
pg.mixer.music.rewind()
if player == c.chance:
legal_moves = get_legal_moves(board, c.chance, True)
else:
best_move = get_best_move(board, c.chance, c.search_depth, progress_bar)
make_move_commons(board, best_move)
board_record.append(np.copy(board))
c.next_turn()
legal_moves = get_legal_moves(board, c.chance, True)
if c.quit_button.left_clicked:
pg.mixer.music.stop()
return
if inside_board(event.pos):
coords = get_click_coords(event.pos)
if c.chance == "black":
coords = (7 - coords[0], 7 - coords[1])
if c.click_coords is not None:
if is_legal_move(coords, c.move_coords_list):
# Finish player's turn
play_move_sound(board, coords)
make_move_commons(board, [c.click_coords, coords])
check_promotions(board)
castling_status = is_castling_move(board, [c.click_coords, coords], player)
if castling_status is not None:
row = 7 if player == "white" else 0
if castling_status == 1:
# kingside castling
make_move_commons(board, [(row, 7), (row, 5)])
elif castling_status == 2:
# queenside castling
make_move_commons(board, [(row, 0), (row, 3)])
c.white_captured_pieces.get_captured_pieces(board)
c.black_captured_pieces.get_captured_pieces(board)
board_record.append(np.copy(board))
c.reset_coords()
draw_everything(board, img, screen)
pg.display.flip()
if is_enemy_in_check(board, player):
play_check_sound()
# Start AI turn
c.next_turn()
best_move = get_best_move(board, c.chance, c.search_depth, progress_bar)
if best_move is None:
if is_enemy_in_check(board, player):
play_checkmate_sound()
exit_game()
else:
play_stalemate_sound()
exit_game()
else:
# Finish AI turn
if player == "white":
c.ai_move = best_move
else:
c.ai_move = [(7 - best_move[0][0], 7 - best_move[0][1]), (7 - best_move[1][0], 7 - best_move[1][1])]
play_move_sound(board, best_move[1])
make_move_commons(board, best_move)
check_promotions(board)
c.targeted_squares = get_targeted_squares(board, player)
c.white_captured_pieces.get_captured_pieces(board)
c.black_captured_pieces.get_captured_pieces(board)
board_record.append(np.copy(board))
# Start player turn
c.next_turn()
legal_moves = get_legal_moves(board, c.chance, True)
castling_moves = check_castling(board, board_record, player)
if len(castling_moves) != 0:
legal_moves.extend(castling_moves)
if is_player_in_check(board, player):
play_check_sound()
elif len(legal_moves) == 0:
if is_player_in_check(board, player):
play_checkmate_sound()
exit_game()
else:
play_stalemate_sound()
exit_game()
elif c.click_coords == coords:
c.reset_coords()
elif clicked_self(board, coords, c.chance):
c.click_coords = coords
c.move_coords_list = get_move_coords(coords, legal_moves)
else:
if clicked_self(board, coords, c.chance):
if c.click_coords == coords:
c.reset_coords()
else:
c.click_coords = coords
c.move_coords_list = get_move_coords(c.click_coords, legal_moves)
else:
c.reset_coords()
if event.type == pg.MOUSEBUTTONUP:
mouse_pos = pg.mouse.get_pos()
clicks = event.button
c.restart_button.check_released(mouse_pos, clicks)
c.quit_button.check_released(mouse_pos, clicks)
if event.type == pg.KEYDOWN:
if event.key == pg.K_ESCAPE:
pg.quit()
quit()
if event.key == pg.K_r:
board = init_board()
board_record = [np.copy(board)]
c.ai_move = None
c.chance = "white"
c.reset_coords()
c.white_captured_pieces.get_captured_pieces(board)
c.black_captured_pieces.get_captured_pieces(board)
c.targeted_squares = None
pg.mixer.music.rewind()
if player == c.chance:
legal_moves = get_legal_moves(board, c.chance, True)
else:
best_move = get_best_move(board, c.chance, c.search_depth, progress_bar)
make_move_commons(board, best_move)
board_record.append(np.copy(board))
c.next_turn()
legal_moves = get_legal_moves(board, c.chance, True)
if event.key == pg.K_u:
if len(board_record) > 2:
board_record.pop()
board_record.pop()
board = np.copy(board_record[-1])
c.ai_move = None
c.white_captured_pieces.get_captured_pieces(board)
c.black_captured_pieces.get_captured_pieces(board)
c.reset_coords()
legal_moves = get_legal_moves(board, c.chance, True)
draw_everything(board, img, screen)
pg.display.flip()
if not music_started:
pg.mixer.music.play(-1)
music_started = True
def exit_game():
pg.mixer.music.stop()
pg.time.delay(3000)
return
if __name__ == '__main__':
pg.init()
screen = pg.display.set_mode((0, 0), pg.FULLSCREEN)
pg.display.set_caption("Chess AI")
c.init_screen(screen)
print("Compiling functions ...")
game_loop(screen)