From 5d5b19a966897f2067d424156f97fb4da7a7a11e Mon Sep 17 00:00:00 2001
From: march3 <gang.wei@qq.com>
Date: Sun, 23 Mar 2025 16:41:04 +0800
Subject: [PATCH] =?UTF-8?q?Python=E8=B6=85=E4=BA=BA-=E5=AE=87=E5=AE=99?=
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---
 sim_scenes/tri_bodies/two_bodies_02.py | 33 +++++++++++++++++++++++---
 1 file changed, 30 insertions(+), 3 deletions(-)

diff --git a/sim_scenes/tri_bodies/two_bodies_02.py b/sim_scenes/tri_bodies/two_bodies_02.py
index 7d46c9c..9103c92 100644
--- a/sim_scenes/tri_bodies/two_bodies_02.py
+++ b/sim_scenes/tri_bodies/two_bodies_02.py
@@ -8,9 +8,11 @@
 # ==============================================================================
 from bodies import Sun, Earth
 from common.consts import SECONDS_PER_WEEK, SECONDS_PER_YEAR, SECONDS_PER_DAY, AU, G
-from sim_scenes.func import mayavi_run, mpl_run, ursina_run
+from sim_scenes.func import mayavi_run, mpl_run, ursina_run, create_sphere_sky
 import math
 
+from simulators.ursina.ursina_event import UrsinaEvent
+
 if __name__ == '__main__':
     r2 = 0.02 * AU
     r1 = 2 * r2
@@ -28,7 +30,9 @@ if __name__ == '__main__':
     vyA = -math.sqrt((G * mA * mB) / math.pow(r1 * 1000 + r2 * 1000, 2) * r1 * 1000 / mA)
     # 万有引力常量 *mA * mB/ math.pow(r1+r2,2) = mB*math.pow(vyB,2)/r2
     vyB = math.sqrt((G * mA * mB) / math.pow(r1 * 1000 + r2 * 1000, 2) * r2 * 1000 / mB)
-    vA, vB = [vxA, vyA / 1000, 0], [vxB, vyB / 1000, 0]
+    vz = 0.02
+    vz= 0
+    vA, vB = [vxA, vyA / 1000, vz], [vxB, vyB / 1000, vz]
     # vA, vB = [0,0,0],[0,0,0]
     bodies = [
         Earth(name="A", rotation_speed=1, mass=mA,
@@ -37,7 +41,30 @@ if __name__ == '__main__':
             init_position=pB, init_velocity=vB, size_scale=5e1, distance_scale=1)
     ]
 
+
+    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
+        from ursina import camera, application
+        camera.clip_plane_far = 1000000
+        create_sphere_sky(scale=200000)
+        application.time_scale = 5
+
+
+    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_YEAR, position=(r1, r1, -7 * r2), show_trail=True)
+    ursina_run(bodies,
+               SECONDS_PER_YEAR,
+               cosmic_bg='',
+               # show_grid=False,
+               position=(r1, r1, -7 * r2),
+               show_camera_info=False,
+               show_control_info=False,
+               timer_enabled=True,
+               show_trail=True)
-- 
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