bug修复，添加了计时器，场景切换和游戏场景参数需要同步添加

src/scenes/base_scene.py

@@ -13,4 +13,4 @@ class BaseScene:
         pass
 
     def switch_to_scene(self, scene_class):
-        self.next_scene = scene_class(self.screen)
+        self.next_scene = scene_class(self.screen, self.clock)

src/scenes/game_scene.py

@@ -5,8 +5,8 @@ from src.scenes.base_scene import BaseScene
 
 
 class GameScene(BaseScene):
-    def __init__(self, screen):
-        super().__init__(screen)
+    def __init__(self, screen, clock):
+        super().__init__(screen, clock)
         self.dirty_x = 400
         self.dirty_y = 300