上传文件至 '重构'

重构/第三次.py

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+# This is a sample Python script.
+
+# Press Shift+F10 to execute it or replace it with your code.
+# Press Double Shift to search everywhere for classes, files, tool windows, actions, and settings.
+
+
+def print_hi(name):
+    # Use a breakpoint in the code line below to debug your script.
+    print(f'Hi, {name}')  # Press Ctrl+F8 to toggle the breakpoint.
+
+
+# Press the green button in the gutter to run the script.
+if __name__ == '__main__':
+    print_hi('PyCharm')
+
+# See PyCharm help at https://www.jetbrains.com/help/pycharm/
+import sys
+import pygame
+from bullet import Bullet
+from alien import Alien
+from time import sleep
+
+
+# 响应按键
+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_bullet(ai_settings, screen, ship, bullets)
+    elif event.key == pygame.K_q:
+        sys.exit()
+
+
+# 如果还没有到达限制，就发射一颗子弹
+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)