Python超人-宇宙模拟器

sim_scenes/solar_system/speed_of_light.py

@@ -9,6 +9,8 @@
 from bodies import Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, Moon, Asteroids, Body
 from common.consts import SECONDS_PER_WEEK, SECONDS_PER_DAY, SECONDS_PER_YEAR, AU
 from sim_scenes.func import mayavi_run, ursina_run
+from simulators.ursina.ursina_config import UrsinaConfig
+from simulators.ursina.ursina_event import UrsinaEvent
 
 if __name__ == '__main__':
     # 八大行星：木星(♃)、土星(♄)、天王星(♅)、海王星(♆)、地球(⊕)、金星(♀)、火星(♂)、水星(☿)
@@ -46,12 +48,34 @@ if __name__ == '__main__':
                       init_velocity=[0, 0, 299792.458]).set_light_disable(True)  # 1 光速=299792.458 千米/秒(km/秒)
 
     bodies.append(light_body)
+
+    arrived_bodies = []
+
+    def on_reset():
+        arrived_bodies.clear()
+
+    def on_timer_changed(time_text, time_data):
+        years, days, hours, minutes, seconds = time_data
+        # UrsinaEvent.on_timer_changed(self.text, (years, days, hours, minutes, seconds))
+        # 光到达地球8.3分钟，
+        # 光到达冥王星平均用时要20000秒,333.3分钟 也就是约5.56小时
+
+        for body in bodies:
+            if body is light_body or isinstance(body, Sun) \
+                    or body in arrived_bodies or isinstance(body, Asteroids):
+                continue
+            if light_body.position[2] >= body.position[2]:
+                arrived_bodies.append(body)
+                print(f"[{time_text}] 已经到达 [{body.name}]")
+            # print(light_body.planet)
+
+
+    UrsinaEvent.on_timer_changed_subscription(on_timer_changed)
+    UrsinaEvent.on_reset_subscription(on_reset)
+
     # 使用 ursina 查看的运行效果
     # 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=(0, 2 * AU, -11 * AU),
                show_trail=True, show_timer=True,
                bg_music="sounds/interstellar.mp3")
-
-    # 光到达地球8.3分钟，
-    # 光到达冥王星平均用时要20000秒,333.3分钟 也就是约5.56小时

simulators/ursina/entities/timer.py

@@ -13,7 +13,7 @@ class Timer(Text):
         # 用来计时的变量
         # self.start_time = time.time()
         self.reset()
-        UrsinaEvent.on_timer_changed_subscription(self.update)
+        UrsinaEvent.on_evolving_subscription(self.update)
         UrsinaEvent.on_reset_subscription(self.reset)
         UrsinaEvent.on_pause_subscription(self.pause)
         UrsinaEvent.on_start_subscription(self.start)
@@ -59,6 +59,8 @@ class Timer(Text):
         else:
             self.text = f'{hours:02d}:{minutes:02d}:{seconds:02d}'
 
+        UrsinaEvent.on_timer_changed(self.text, (years, days, hours, minutes, seconds))
+
 
 if __name__ == '__main__':
     app = Ursina()

simulators/ursina/ui/control_handler.py

@@ -227,7 +227,7 @@ class ControlHandler(EventHandler):
             kv = key.split(" ")
             self.shift_keys[kv[0]] = False
 
-        print(self.shift_keys)
+        # print(self.shift_keys)
         return self.shift_keys['left'] or self.shift_keys['right']
 
     def settings_handler_input(self, key):
@@ -241,7 +241,7 @@ class ControlHandler(EventHandler):
         self.shift_key_handle(key)
 
         self.camera_update()
-        print(key)
+        # print(key)
         if key == "escape":
             if self.shift_keys['left'] or self.shift_keys['right']:
                 sys.exit()

simulators/ursina/ursina_event.py

@@ -31,6 +31,8 @@ class UrsinaEvent:
         UrsinaEvent.on_application_run_callback = []
         # 天体大小发生变化的订阅事件
         UrsinaEvent.on_body_size_changed_callback = []
+        # 逐步演变触发的订阅事件
+        UrsinaEvent.on_evolving_callback = []
         # 计时器触发的订阅事件
         UrsinaEvent.on_timer_changed_callback = []
 
@@ -48,8 +50,17 @@ class UrsinaEvent:
         UrsinaEvent.on_timer_changed_callback.append(fun)
 
     @staticmethod
-    def on_timer_changed(evolve_dt):
+    def on_timer_changed(time_text, time_data):
         for f in UrsinaEvent.on_timer_changed_callback:
+            f(time_text, time_data)
+
+    @staticmethod
+    def on_evolving_subscription(fun):
+        UrsinaEvent.on_evolving_callback.append(fun)
+
+    @staticmethod
+    def on_evolving(evolve_dt):
+        for f in UrsinaEvent.on_evolving_callback:
             f(evolve_dt)
 
     @staticmethod

simulators/ursina_simulator.py

@@ -172,7 +172,7 @@ class UrsinaSimulator(Simulator):
                 # 配置中，每年、月、天等等有多少秒
                 evolve_dt = UrsinaConfig.seconds_per * run_speed_factor
 
-            UrsinaEvent.on_timer_changed(evolve_dt)
+            UrsinaEvent.on_evolving(evolve_dt)
             # interval_fator 能让更新天体运行状态（位置、速度）更精确
             evolve_dt = evolve_dt * self.interval_fator
             super().evolve(evolve_dt)

simulators/views/ursina_view.py

@@ -24,7 +24,7 @@ class UrsinaView(BodyView):
         self.velocity = body.velocity
 
         self.planet = Planet(self)
-
+        body.planet = self.planet
 
     def update(self):
         """