diff --git a/objs/circle_obj.py b/objs/circle_obj.py
index a8dd4af5a9776658629f2706bb518ea45e77f0e4..ea9265feb7dc17608473715dba0864b9e2c66f8c 100644
--- a/objs/circle_obj.py
+++ b/objs/circle_obj.py
@@ -22,7 +22,7 @@ class CircleObj(Obj):
                  ignore_mass=False, density=3.51e3, color=(7, 0, 162),
                  trail_color=None, show_name=False,
                  parent=None, gravity_only_for=[]):
-        from ursina.models.procedural.quad import Quad
+        from ursina.models.procedural.circle import Circle
         params = {
             "name": name,
             "mass": mass,
diff --git a/sim_scenes/tri_bodies/two_way_foil.py b/sim_scenes/tri_bodies/two_way_foil.py
index 1172aa98a10d0e4578272f78183024d03ba0be01..0e46b4abf8332b141d11edb4c3e5c0fd39565d73 100644
--- a/sim_scenes/tri_bodies/two_way_foil.py
+++ b/sim_scenes/tri_bodies/two_way_foil.py
@@ -45,9 +45,9 @@ if __name__ == '__main__':
     ]
     # endregion
 
-    two_way_foil = QuadObj(texture='caustic.jpg', size_scale=2e8,
-                           init_velocity=[-10, -10, 0],
-                           init_position=[0, 0, 39.55 * AU]) \
+    two_way_foil = QuadObj(texture='caustic.jpg', size_scale=4e7,
+                           init_velocity=[0, 0, 100],
+                           init_position=[0, 0, -10*AU]) \
         .set_light_disable(True).set_ignore_gravity(True)
 
     three_dim_bodies = []
@@ -82,17 +82,90 @@ if __name__ == '__main__':
         @return:
         """
         # 创建天空
-        create_sphere_sky(scale=8000)
+        # camera.clip_plane_near = 0.1
+        camera.clip_plane_far = 1000000
+        create_sphere_sky(scale=200000)
         for body in two_dim_bodies:
+            body.planet.enabled = False
+            model = body.planet.model
             if body.three_dim.has_rings:
                 rings = create_rings(body.planet)
                 rings.scale *= 2e10
 
+
+    current_stage = None
+
+    def stage_01():
+        """
+        二向箔飞向太阳
+        @return:
+        """
+        global current_stage
+        if two_bodies_colliding(two_way_foil, sun):
+            sun.planet.enabled = False
+            sun.two_dim.planet.enabled = True
+            # two_way_foil.explode(sun)
+            two_way_foil.planet.enabled = False
+            current_stage = stage_02
+
+    def blink(body):
+        if not hasattr(body, "blink_d"):
+            body.blink_d = 1
+            body.blink_v = 1
+
+        if body.blink_d > 0:
+            body.blink_v -= 0.05
+            body.planet.alpha = body.blink_v
+            if body.blink_v <= 0.7:
+                body.blink_d = -1
+        elif body.blink_d < 0:
+            body.blink_v += 0.05
+            body.planet.alpha = body.blink_v
+            if body.blink_v >= 1:
+                body.blink_d = 1
+
+
+
+    def stage_02():
+        """
+
+        @return:
+        """
+        global current_stage
+        sun.two_dim.planet.init_scale += 1.1
+        blink(sun.two_dim)
+        for b in three_dim_bodies:
+            if two_bodies_colliding(sun.two_dim, b):
+                b.planet.enabled = False
+                b.two_dim.planet.enabled = True
+            if b.two_dim.planet.enabled:
+                b.two_dim.planet.init_scale += 1.1
+                blink(b.two_dim)
+
+
+    current_stage = stage_01
+
     def on_timer_changed(time_data):
         two_way_foil.planet.rotation_x += 1
         two_way_foil.planet.rotation_y += 2
-        for b in three_dim_bodies:
-            b.planet.enabled = False
+        current_stage()
+        # if sun.two_dim.planet.enabled:
+        #     sun.two_dim.planet.init_scale += 1.1
+        #     for b in three_dim_bodies:
+        #         if two_bodies_colliding(sun.two_dim, b):
+        #             b.planet.enabled = False
+        #             b.two_dim.planet.enabled = True
+        #         if b.two_dim.planet.enabled:
+        #             b.two_dim.planet.init_scale += 1.1
+        # else:
+        #     if two_bodies_colliding(two_way_foil, sun):
+        #         sun.planet.enabled = False
+        #         sun.two_dim.planet.enabled = True
+
+
+
+        # for b in three_dim_bodies:
+        #     b.planet.enabled = False
         for b in two_dim_bodies:
             b.planet.rotation_x = 90
             b.init_position = b.three_dim.position
@@ -110,7 +183,7 @@ 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_MONTH, position=(0, 2 * AU, -11 * AU),
+    ursina_run(bodies, SECONDS_PER_MONTH / 2, position=(0, 2 * AU, -11 * AU),
                cosmic_bg='',
                timer_enabled=True,
                show_grid=False)
diff --git a/simulators/ursina/entities/planet.py b/simulators/ursina/entities/planet.py
index 8b17a0bed91858a992ea8fec4cabff11e925dab4..904fda5d836a3d232903f94d00e3e00f4aa99d67 100644
--- a/simulators/ursina/entities/planet.py
+++ b/simulators/ursina/entities/planet.py
@@ -106,6 +106,10 @@ class Planet(Entity):
         # 当对天体大小进行缩放的时候会触发 change_body_scale
         UrsinaEvent.on_body_size_changed_subscription(self.change_body_scale)
 
+        # if model == 'circle':
+        #     from ursina.models.procedural.circle import Circle
+        #     model = Circle()
+
         super().__init__(
             # model="sphere",
             model=model,