From d76d9eafc172fdb66cf503ac2a2e35c320e05806 Mon Sep 17 00:00:00 2001
From: march3 <gang.wei@qq.com>
Date: Wed, 25 Oct 2023 15:17:12 +0800
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---
 sim_scenes/fiction/sirius_is_coming_02.py | 68 +++++++++++++++++++++++
 1 file changed, 68 insertions(+)
 create mode 100644 sim_scenes/fiction/sirius_is_coming_02.py

diff --git a/sim_scenes/fiction/sirius_is_coming_02.py b/sim_scenes/fiction/sirius_is_coming_02.py
new file mode 100644
index 0000000..ae156bb
--- /dev/null
+++ b/sim_scenes/fiction/sirius_is_coming_02.py
@@ -0,0 +1,68 @@
+# -*- coding:utf-8 -*-
+# title           :天狼星进入太阳系场景模拟
+# description     :天狼星把太阳系带偏了
+# author          :Python超人
+# date            :2023-10-25
+# link            :https://gitcode.net/pythoncr/
+# python_version  :3.8
+# ==============================================================================
+from bodies import Sirius, Sun, Mercury, Venus, Earth, \
+    Mars, Jupiter, Saturn, Uranus, Neptune, Pluto, Moon, Asteroids
+from common.celestial_data_service import init_bodies_pos_vels
+from common.consts import SECONDS_PER_WEEK, SECONDS_PER_DAY, SECONDS_PER_MONTH, AU
+from sim_scenes.func import ursina_run, create_sphere_sky
+from ursina import camera, application
+
+from simulators.ursina.ursina_event import UrsinaEvent
+
+if __name__ == '__main__':
+    #  由于宇宙空间尺度非常大，如果按照实际的天体大小，则无法看到天体，因此需要对天体的尺寸进行放大
+    sun = Sun(name="太阳",
+              init_velocity=[0, 2, 0],
+              size_scale=0.8e2)  # 太阳放大 80 倍，距离保持不变
+    sirius = Sirius(name="天狼星",
+                    init_position=[-10 * AU, 4 * AU, 4 * AU],
+                    init_velocity=[50, -50, 0],
+                    size_scale=0.8e2)  # 天狼星放大 80 倍，距离保持不变
+    bodies = [
+        sirius,
+        sun,
+        Mercury(name="水星", size_scale=4e3),  # 水星放大 4000 倍，距离保持不变
+        Venus(name="金星", size_scale=4e3),  # 金星放大 4000 倍，距离保持不变
+        Earth(name="地球", size_scale=4e3),  # 地球放大 4000 倍，距离保持不变
+        Mars(name="火星", size_scale=4e3),  # 火星放大 4000 倍，距离保持不变
+        # Asteroids(name="小行星群", size_scale=1e2,
+        #           parent=sun),                     # 小行星群模拟(仅 ursina 模拟器支持)
+        Jupiter(name="木星", size_scale=0.8e3),  # 木星放大 800 倍，距离保持不变
+        Saturn(name="土星", size_scale=0.8e3),  # 土星放大 800 倍，距离保持不变
+        Uranus(name="天王星", size_scale=0.8e3),  # 天王星放大 800 倍，距离保持不变
+        Neptune(name="海王星", size_scale=1e3),  # 海王星放大 1000 倍，距离保持不变
+        Pluto(name="冥王星", size_scale=10e3),  # 冥王星放大 10000 倍，距离保持不变(从太阳系的行星中排除)
+    ]
+
+    init_bodies_pos_vels(bodies)
+
+    def on_ready():
+        """
+        事件绑定后，模拟器运行前会触发
+        @return:
+        """
+        # 创建天空
+        # camera.clip_plane_near = 0.1
+        camera.clip_plane_far = 1000000
+        create_sphere_sky(scale=200000)
+        application.time_scale = 5
+
+    # 运行前会触发 on_ready
+    UrsinaEvent.on_ready_subscription(on_ready)
+
+    # 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_MONTH,
+               position=(0, 2 * AU, -11 * AU),
+               cosmic_bg='',
+               show_grid=False,
+               # bg_music="sounds/interstellar.mp3"
+               bg_music='sounds/no_glory.mp3',
+               )
-- 
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