diff --git a/sim_scenes/tri_bodies/two_way_foil.py b/sim_scenes/tri_bodies/two_way_foil.py
index 0f2e7e68fdbb7cde9daea8f53c452026e191d050..2aed45d237d0b19f4c7f1a2acb0d8f300c4ad6fc 100644
--- a/sim_scenes/tri_bodies/two_way_foil.py
+++ b/sim_scenes/tri_bodies/two_way_foil.py
@@ -6,6 +6,7 @@
 # link            :https://gitcode.net/pythoncr/
 # python_version  :3.9
 # ==============================================================================
+import threading
 import time
 import datetime
 
@@ -165,15 +166,41 @@ class TwoWayFoilSim:
         for b in self.two_dim_bodies:
             b.planet.rotation_x = 90
 
+    def flatten_animation(self, body, flatten_body):
+        def flatten_update(planet, flatten_planet):
+            def warp():
+                planet.scale_y /= 1.05
+                # time.sleep(0.2)
+                if planet.scale_y < 10:
+                    planet.enabled = False
+                    flatten_planet.enabled = True
+
+            return warp
+
+        body.planet.update = flatten_update(body.planet, flatten_body.planet)
+
+        # for i in range(10):
+        #     # body.planet.scale_y /= 2
+        #     body.init_scale = [body.init_scale[0], body.init_scale[1] / 2, body.init_scale[2]]
+        #     time.sleep(0.2)
+        # body.planet.enabled = False
+        # flatten_body.planet.enabled = True
+        # flatten_body.planet.x += 100000
+
     def stage_01(self):
         """
         二向箔飞向太阳
         @return:
         """
         if two_bodies_colliding(self.two_way_foil, self.sun):
-            self.sun.planet.enabled = False
-            self.sun.two_dim.planet.enabled = True
-            self.sun.two_dim.planet.x += 100000
+            # t = threading.Thread(target=self.flatten_animation, args=[self.sun, self.sun.two_dim])
+            # t.start()
+            # for i in range(10):
+            #     self.sun.planet.scale_y /= 0.5
+            #     time.sleep(1)
+            # self.sun.planet.enabled = False
+            # self.sun.two_dim.planet.enabled = True
+            # self.sun.two_dim.planet.x += 100000
             # two_way_foil.explode(sun)
             self.two_way_foil.planet.enabled = False
             self.two_way_foil_circle.planet.alpha = 0.9
@@ -214,8 +241,10 @@ class TwoWayFoilSim:
             if hasattr(b, "two_way_time"):
                 if b.two_way_time is not None:
                     if time.time() - b.two_way_time > two_way_delay_times[idx]:
-                        b.planet.enabled = False
-                        b.two_dim.planet.enabled = True
+                        t = threading.Thread(target=self.flatten_animation, args=[b, b.two_dim])
+                        t.start()
+                        # b.planet.enabled = False
+                        # b.two_dim.planet.enabled = True
                         b.two_way_time = None
             elif two_bodies_colliding(self.two_way_foil_circle, b):
                 b.two_way_time = time.time()