上传文件至 ''

game_functions.py

@@ -1,155 +1,168 @@
-
+def check_keydown_events(event,ai_settings,screen,ship,bullets):
-def check_keydown_events(event, ai_settings, screen, ship, bullets):
     if event.key == pygame.K_RIGHT:
         ship.moving_right = True
     elif event.key == pygame.K_LEFT:
         ship.moving_left = True
+
     elif event.key == pygame.K_SPACE:
         fire_bullets(ai_settings, screen, ship, bullets)
     elif event.key == pygame.K_q:
         sys.exit()
-
+       def check_keyup_events(event,ship):
-def check_keyup_events(event, ship):
     if event.key == pygame.K_RIGHT:
         ship.moving_right = False
+
     elif event.key == pygame.K_LEFT:
         ship.moving_left = False
 
+def check_events(ai_settings, screen, stats,sb, play_button, ship,aliens,bullets):  
 
-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_events(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)
 
+            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_events(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 check_play_button(ai_settings, screen, stats, sb, play_button, ship, aliens, bullets, mouse_x, mouse_y):
+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)
+
+    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 update_screen(ai_settings,screen,stats,sb,ship,aliens,bullets,play_button):
 
-def update_screen(ai_settings, screen, stats, sb, ship, aliens, bullets, play_button):
     screen.fill(ai_settings.bg_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):
-
-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)
-    check_bullet_alien_collisions(ai_settings, screen, stats, sb, ship, aliens, bullets)
-
 
+    check_bullet_alien_collisions(ai_settings, screen,stats,sb, ship, aliens, bullets)
 def fire_bullets(ai_settings, screen, ship, bullets):
+
     if len(bullets) < ai_settings.bullets_allowed:
+
         new_bullet = Bullet(ai_settings, screen, ship)
         bullets.add(new_bullet)
-
+def check_bullet_alien_collisions(ai_settings, screen,stats,sb, ship, aliens, bullets):
-
+    collisions = pygame.sprite.groupcollide(bullets,aliens,True,True)
-def check_bullet_alien_collisions(ai_settings, screen, stats, sb, ship, aliens, bullets):
-    collisions = pygame.sprite.groupcollide(bullets, aliens, True, True)
     if collisions:
         for aliens in collisions.values():
             stats.score += ai_settings.alien_points * len(aliens)
             sb.prep_score()
-        check_high_score(stats, sb)
+        check_high_score(stats,sb)
     if len(aliens) == 0:
+
         bullets.empty()
+
         ai_settings.increase_speed()
 
+
         stats.level += 1
         sb.prep_level()
-
+        
         create_fleet(ai_settings, screen, ship, aliens)
 
 
+
 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 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 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.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
+    alien.rect.y = alien.rect.height + 2*alien.rect.height * row_number
     aliens.add(alien)
 
-
 def get_number_rows(ai_settings, ship_height, alien_height):
-    available_space_y = ai_settings.screen_height - (3 * alien_height) - ship_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 update_aliens(ai_settings,screen,stats,sb,ship,aliens,bullets):
-def update_aliens(ai_settings, screen, stats, sb, ship, aliens, bullets):
+    check_fleet_edges(ai_settings,aliens)
-    check_fleet_edges(ai_settings, aliens)
     aliens.update()
     if pygame.sprite.spritecollideany(ship, aliens):
-        ship_hit(ai_settings, screen, stats, sb, ship, aliens, bullets)
+        ship_hit(ai_settings,screen,stats,sb,ship,aliens,bullets)
-    check_aliens_bottom(ai_settings, screen, stats, sb, ship, aliens, bullets)
+    check_aliens_bottom(ai_settings,screen,stats,sb,ship,aliens,bullets)
-
 
 def check_fleet_edges(ai_settings, aliens):
     for alien in aliens.sprites():
         if alien.check_edges():
-            change_fleet_direction(ai_settings, aliens)
+            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):
+def ship_hit(ai_settings,screen, stats, sb, ship, aliens, bullets):
+
     if stats.ship_left > 0:
         stats.ship_left -= 1
 
+
         sb.prep_ships()
         aliens.empty()
         bullets.empty()
@@ -157,20 +170,22 @@ def ship_hit(ai_settings, screen, stats, sb, ship, aliens, bullets):
         create_fleet(ai_settings, screen, ship, aliens)
         ship.center_ship()
 
+
         sleep(0.5)
     else:
         stats.game_active = False
         pygame.mouse.set_visible(True)
 
 
-def check_aliens_bottom(ai_settings, screen, stats, sb, ship, aliens, bullets):
+    
+
+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:
-            ship_hit(ai_settings, screen, stats, sb, ship, aliens, bullets)
+            ship_hit(ai_settings,screen,stats,sb,ship,aliens,bullets)
             break
 
-
 def check_high_score(stats, sb):
     if stats.score > stats.high_score:
         stats.high_score = stats.score