Python超人-宇宙模拟器

sim_lab/earth_moon.py

@@ -75,7 +75,7 @@ if __name__ == '__main__':
     # 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, SECONDS_PER_DAY,
+    ursina_run(bodies, SECONDS_PER_WEEK*4,
                position=(-300000, 1500000, -1000),
                show_timer=True,
                show_trail=True)

sim_scenes/earth/sun_earth_moon_vr.py

+# -*- coding:utf-8 -*-
+# title           :地月场景模拟
+# description     :地月场景模拟（月球始终一面朝向地球、月球对地球的扰动）
+# author          :Python超人
+# date            :2023-05-01
+# link            :https://gitcode.net/pythoncr/
+# python_version  :3.8
+# ==============================================================================
+
+
+from bodies import Sun, Earth, Moon
+from objs import CoreValagaClas, SciFiBomber, WaterDrop
+from common.consts import AU, SECONDS_PER_DAY, SECONDS_PER_WEEK, SECONDS_PER_MONTH
+from sim_scenes.func import ursina_run, camera_look_at
+from simulators.ursina.entities.body_timer import TimeData
+from simulators.ursina.entities.entity_utils import create_directional_light
+from simulators.ursina.ursina_config import UrsinaConfig
+from simulators.ursina.ursina_event import UrsinaEvent
+
+if __name__ == '__main__':
+    """
+    月球始终一面朝向地球
+    月球对地球的扰动
+    """
+    OFFSETTING = 0
+    # TODO: 可以抵消月球带动地球的力，保持地球在原地
+    OFFSETTING = 0.01265
+    sun = Sun(name="太阳", size_scale=6e1, init_position=[0, 0, -AU]).set_ignore_gravity(True)
+    earth = Earth(init_position=[0, 0, 0],
+                  texture="earth_hd.jpg",
+                  rotate_angle=-23.44,
+                  init_velocity=[OFFSETTING, 0, 0], size_scale=1e1)  # 地球放大 5 倍，距离保持不变
+    moon = Moon(init_position=[0, 0, 363104],  # 距地距离约: 363104 至 405696 km
+                init_velocity=[-1.03, 0, 0], size_scale=2e1)  # 月球放大 10 倍，距离保持不变
+    # moon.set_light_disable(True)
+    core_valaga_clas = CoreValagaClas(size_scale=15,
+                                      init_position=[0, -30000, -220000]).set_ignore_gravity(True)
+
+    sci_fi_bomber = SciFiBomber(size_scale=3.5,
+                                init_position=[0, 30000, -220000]).set_ignore_gravity(True)
+
+    earth.rotation_speed /= 6  # 地球的转速降低50倍
+
+    bodies = [sun, earth, moon, core_valaga_clas, sci_fi_bomber]
+
+
+    def on_timer_changed(time_data: TimeData):
+        if time_data.total_days > 27.5:
+            exit(0)
+
+
+    def on_ready():
+        core_valaga_clas.planet.rotation_x = -10
+        sci_fi_bomber.planet.rotation_x = 120
+
+
+    # 订阅事件后，上面2个函数功能才会起作用
+    # 运行前会触发 on_ready
+    UrsinaEvent.on_ready_subscription(on_ready)
+    # 运行中，每时每刻都会触发 on_timer_changed
+    UrsinaEvent.on_timer_changed_subscription(on_timer_changed)
+
+    # 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,
+               # SECONDS_PER_DAY / 3,
+               SECONDS_PER_WEEK * 4,
+               position=(0, 0, -220000),
+               show_grid=False,
+               cosmic_bg="",
+               save_cube_map=True,
+               timer_enabled=True,
+               show_camera_info=False,
+               show_control_info=False,
+               view_closely=True
+               # show_trail=True
+               )