From 473a23442d2f6b743dc6185e2133cc5c77330197 Mon Sep 17 00:00:00 2001
From: march3 <gang.wei@qq.com>
Date: Fri, 14 Apr 2023 17:07:43 +0800
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---
 bodies/body.py                        | 2 +-
 sim_scenes/science/parabolic_curve.py | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/bodies/body.py b/bodies/body.py
index 3376aeb..0467db2 100644
--- a/bodies/body.py
+++ b/bodies/body.py
@@ -231,7 +231,7 @@ class Body(metaclass=ABCMeta):
         停止运动，将加速度和速度置零
         @return:
         """
-        self.init_velocity = [0.0, 0.0, 0.0]
+        self.velocity = [0.0, 0.0, 0.0]
         self.acceleration = [0.0, 0.0, 0.0]
 
     def stop_and_ignore_gravity(self):
diff --git a/sim_scenes/science/parabolic_curve.py b/sim_scenes/science/parabolic_curve.py
index 7fe9563..3c5a9b6 100644
--- a/sim_scenes/science/parabolic_curve.py
+++ b/sim_scenes/science/parabolic_curve.py
@@ -64,9 +64,13 @@ if __name__ == '__main__':
                     # 如果抛出物与地球相碰撞了，则静止不动（抛出物停止并忽略引力）
                     obj.stop_and_ignore_gravity()
 
+    def on_reset():
+        for obj in [obj0, obj1, obj2, obj3]:
+            obj.ignore_mass = False
 
     # 订阅计时器事件（定时触发）
     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
-- 
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