Python超人-宇宙模拟器

sim_scenes/solar_system/speed_of_light.py

@@ -12,7 +12,7 @@ from sim_scenes.solar_system.speed_of_light_init import SpeedOfLightInit
 
 camera_follow_light = None  # 摄像机固定，不会跟随光
 camera_follow_light = 'ForwardView'  # 摄像机跟随光，方向是向前看
-camera_follow_light = 'SideView'  # 摄像机跟随光，方向是侧面看
+# camera_follow_light = 'SideView'  # 摄像机跟随光，方向是侧面看
 
 # 实例化一个初始化对象（订阅事件，记录到达每个行星所需要的时间）
 init = SpeedOfLightInit(camera_follow_light)
@@ -34,7 +34,8 @@ init.event_subscription()
 # 常用快捷键： P：运行和暂停  O：重新开始  I：显示天体轨迹
 # position = 左-右+、上+下-、前+后-
 ursina_run(bodies, 60,
-           position=init.position,
-           show_trail=init.show_trail, show_timer=True,
+           position=init.camera_position,
+           show_trail=init.show_trail,
+           show_timer=True,
            # view_closely=True,
            bg_music="sounds/interstellar.mp3")

sim_scenes/solar_system/speed_of_light_init.py

@@ -34,31 +34,44 @@ class SpeedOfLightInit:
 
         if self.__camera_follow_light == "SideView":
             # 摄像机位置 = 前-后+、上+下-、左-右+、
-            self.position = (AU, 0, 0)
+            self.camera_position = (AU, 0, 0)
             self.show_trail = True
             self.light_size_scale = 1e3
             self.light_init_position = [AU / 3, 0, 0]
         elif self.__camera_follow_light == "ForwardView":
             # 摄像机位置 = 左-右+、上+下-、前+后-
-            self.position = (0, AU / 10, -AU)
-            self.show_trail = False
+            self.camera_position = (0, AU / 10, -AU)
+            self.show_trail = True
             self.light_size_scale = 1e2
             self.light_init_position = [AU / 12, 0, 0]
         else:
             # 摄像机位置 = 左-右+、上+下-、前+后-
-            self.position = (0, AU, -6 * AU)
+            self.camera_position = (0, AU, -6 * AU)
             self.show_trail = True
             self.light_size_scale = 2e3
             self.light_init_position = [AU / 3, 0, 0]
 
-    # 点击了重置按钮
     def on_reset(self):
+        """
+        点击了重置按钮触发
+        @return:
+        """
         self.arrived_bodies.clear()  # 重置存放记录光体已到达天体列表
         self.arrived_info = "[00:00:00]\t从 [太阳] 出发\n\n"
         if self.text_panel is not None:
             self.text_panel.text = self.arrived_info
 
     def event_subscription(self):
+        """
+        订阅事件
+        @return:
+        """
+        if self.light_body is None:
+            raise Exception("请指定 SpeedOfLightInit.light_body")
+
+        if self.bodies is None:
+            raise Exception("请指定 SpeedOfLightInit.bodies")
+
         # 订阅重新开始事件
         UrsinaEvent.on_reset_subscription(self.on_reset)
         UrsinaEvent.on_ready_subscription(self.on_ready)
@@ -66,6 +79,10 @@ class SpeedOfLightInit:
         UrsinaEvent.on_timer_changed_subscription(self.on_timer_changed)
 
     def on_ready(self):
+        """
+        模拟器开始运行前触发
+        @return:
+        """
         self.text_panel = create_text_panel()
         self.text_panel.text = self.arrived_info
 
@@ -73,12 +90,17 @@ class SpeedOfLightInit:
             camera.parent = self.light_body.planet
             camera.rotation_y = -85
         elif self.__camera_follow_light == "ForwardView":
-            self.light_body.planet.enabled = False
+            # self.light_body.planet.enabled = False
             camera.parent = self.light_body.planet
             camera.rotation_y = -15
 
     def on_timer_changed(self, time_text, time_data):
-        global arrived_info
+        """
+        计时器触发
+        @param time_text: 计时器时间文本
+        @param time_data: 计时器时间数据
+        @return:
+        """
         years, days, hours, minutes, seconds = time_data
         for body in self.bodies:
             if body is self.light_body or isinstance(body, Sun) \

simulators/ursina/entities/timer.py

@@ -17,12 +17,17 @@ class Timer(Text):
 
     def __init__(self):
         # 创建一个文本对象来显示计时器的时间
-        super().__init__(text='00:00', position=(0.65, -0.45), font=UrsinaConfig.CN_FONT)
+        super().__init__(text='                                 ', position=(0.70, -0.465),
+                         origin=(-0.5, 0.5),
+                         font=UrsinaConfig.CN_FONT, background=True)
         UrsinaEvent.on_timer_changed_subscription(self.on_timer_changed)
 
     def on_timer_changed(self, time_text, time_data):
         self.text = time_text
 
+    def update(self):
+        self.text = "00:00:00"
+
 
 if __name__ == '__main__':
     app = Ursina()