自己亲手打的外星人入侵

import sys import pygame from bullet import Bullet from alien import Alien from time import sleep from button import Button def check_keydown_events(event, ai_settings, screen, ship, bullets): if event.key == pygame.K_ESCAPE: sys.exit() if event.key == pygame.K_RIGHT: ship.moving_right = True if event.key == pygame.K_LEFT: ship.moving_left = True if event.key == pygame.K_UP: ship.moving_up = True if event.key == pygame.K_DOWN: ship.moving_down = True if event.key == pygame.K_SPACE: fire_bullet(ai_settings, screen, ship, bullets) def check_keyup_event(event, ship): if event.key == pygame.K_RIGHT: ship.moving_right = False if event.key == pygame.K_LEFT: ship.moving_left = False if event.key == pygame.K_UP: ship.moving_up = False if event.key == pygame.K_DOWN: ship.moving_down = False def check_play_button(ai_settings,screen,stats,sb,play_button,ship,aliens,bullets, mouse_x,mouse_y): button_clicked=play_button.rect.collidepoint(mouse_x,mouse_y) if button_clicked and not stats.game_active: ai_settings.initialize_dynamic_settings() pygame.mouse.set_visible(False) stats.reset_stats() stats.game_active=True sb.prep_score() sb.prep_high_score() sb.prep_level() sb.prep_ships() aliens.empty() bullets.empty() create_fleet(ai_settings,screen,ship,aliens) ship.center_ship() def check_events(ai_settings, screen, stats, sb,play_button, ship,aliens, bullets): for event in pygame.event.get(): if event.type == pygame.QUIT: sys.exit() elif event.type == pygame.KEYDOWN: check_keydown_events(event, ai_settings, screen, ship, bullets) elif event.type == pygame.KEYUP: check_keyup_event(event, ship) elif event.type == pygame.MOUSEBUTTONDOWN: mouse_x, mouse_y = pygame.mouse.get_pos() check_play_button(ai_settings,screen,stats, sb, play_button,ship,aliens,bullets, mouse_x,mouse_y) def update_screen(ai_settings, screen,stats,sb, ship, aliens, bullets, play_button): screen.fill(ai_settings.background_color) for bullet in bullets.sprites(): bullet.draw_bullet() ship.blitme() aliens.draw(screen) sb.show_score() if not stats.game_active: play_button.draw_button() pygame.display.flip() def update_bullets(ai_settings,screen,stats,sb,ship, aliens, bullets): bullets.update() for bullet in bullets.copy(): if bullet.rect.bottom <= 0: bullets.remove(bullet) # print(len(bullets)) check_bullet_alien_collisions(ai_settings,screen,stats,sb,ship,aliens,bullets) def check_bullet_alien_collisions(ai_settings, screen, stats, sb, ship, aliens, bullets): collisions = pygame.sprite.groupcollide(bullets, aliens, True, True) if len(aliens) == 0: bullets.empty() ai_settings.increase_speed() stats.level+=1 sb.prep_level() create_fleet(ai_settings,screen,ship,aliens) if collisions: for alines in collisions.values(): stats.score += ai_settings.alien_points*len(aliens) sb.prep_score() check_high_score(stats,sb) def fire_bullet(ai_settings, screen, ship, bullets): if len(bullets) < ai_settings.bullets_allowed: new_bullet = Bullet(ai_settings, screen, ship) bullets.add(new_bullet) def get_number_aliens_x(ai_settings, alien_width): available_space_x = ai_settings.screen_width - 2 * alien_width number_aliens_x = int(available_space_x / (2 * alien_width)) return number_aliens_x def get_number_rows(ai_settings, ship_height, alien_height): available_space_y = (ai_settings.screen_height -(3 * alien_height) - ship_height) number_rows = int(available_space_y / (2 * alien_height)) return number_rows def create_alien(ai_settings, screen, aliens, alien_number, row_number): alien = Alien(ai_settings, screen) alien_width = alien.rect.width alien.x = alien_width + 2 * alien_width * alien_number alien.rect.x = alien.x alien.rect.y=alien.rect.height+2*alien.rect.height*row_number aliens.add(alien) def create_fleet(ai_settings, screen, ship,aliens): alien = Alien(ai_settings, screen) number_aliens_x = get_number_aliens_x(ai_settings, alien.rect.width) number_rows=get_number_rows(ai_settings, ship.rect.height,alien.rect.height) for row_number in range(number_rows): for alien_number in range(number_aliens_x): create_alien(ai_settings, screen, aliens, alien_number,row_number) def check_fleet_edges(ai_settings, aliens): for alien in aliens.sprites(): if alien.check_edges(): change_fleet_direction(ai_settings, aliens) break def change_fleet_direction(ai_settings, aliens): for alien in aliens.sprites(): alien.rect.y += ai_settings.fleet_drop_speed ai_settings.fleet_direction *= -1 def ship_hit(ai_settings,screen,stats,sb, ship,aliens,bullets): if stats.ships_left > 0: stats.ships_left -= 1 sb.prep_ships() aliens.empty() bullets.empty() create_fleet(ai_settings,screen,ship,aliens) ship.center_ship() sleep(1) else: stats.game_active=False pygame.mouse.set_visible(True) def check_aliens_bottom(ai_settings,screen, stats, sb, ship, aliens, bullets): screen_rect = screen.get_rect() for alien in aliens.sprites(): if alien.rect.bottom >= screen_rect.bottom: # print("alien arrive bottom!!!") ship_hit(ai_settings, screen, stats, sb, ship, aliens, bullets) break def update_aliens(ai_settings,screen,stats,sb, ship, aliens,bullets): check_fleet_edges(ai_settings, aliens) aliens.update() if pygame.sprite.spritecollideany(ship,aliens): #print("Ship hit!!!") ship_hit(ai_settings,screen,stats,sb,ship,aliens,bullets) check_aliens_bottom(ai_settings,screen,stats,sb,ship,aliens,bullets) def check_high_score(stats,sb): if stats.score>stats.high_score: stats.high_score=stats.score sb.prep_high_score()