diff --git a/intro_ball.gif b/assets/intro_ball.gif
similarity index 100%
rename from intro_ball.gif
rename to assets/intro_ball.gif
diff --git a/assets/ship.gif b/assets/ship.gif
new file mode 100644
index 0000000..7e91ff7
Binary files /dev/null and b/assets/ship.gif differ
diff --git a/main.py b/main.py
index 26572b0..e794740 100755
--- a/main.py
+++ b/main.py
@@ -16,7 +16,7 @@ size = width, height = 1366, 720
 TICK_RATE=60
 camera=np.array([0.,0.])
 origin=camera=np.array([0.,0.])
-follow=0
+follow=1
 screen = pygame.display.set_mode(size)
 
 class satellite(pygame.sprite.Sprite):
@@ -45,14 +45,15 @@ tick=(time.time(), time.time(), 0)
 def clip(val, minval, maxval):
     return min(max(val, minval), maxval)
 elements=[satellite() for _ in range(3)]
-for element in elements:
+"""for element in elements:
     element.pos=np.array([random.randint(0,width), random.randint(0,height)], dtype='float64')
-    element.speed=np.array([random.randint(0,50), random.randint(0,50)], dtype='float64')
-elements[1].pos= np.array([float(width/2), float(height/2)])
-elements[0].pos= np.array([float(width/4), float(height/4)])
-elements[0].speed[1]=10
-elements[1].mass=100
+    element.speed=np.array([random.randint(0,50), random.randint(0,50)], dtype='float64')"""
+elements[1].pos= np.array([-500.,0.])
+elements[0].pos= np.array([-100.,0.])
+elements[0].speed[1]=20
+elements[1].mass=300
 elements[2].mass=30
+elements[2].speed[1]=100
 keys=set()
 while 1:
     dtick=tick
@@ -79,9 +80,13 @@ while 1:
         for element in elements:
             element.apply_gravity(elements)
             element.tick(camera=camera)
+        for element in elements:
+            element.pos = element.pos - elements[-1].pos
+            element.speed = element.speed - elements[-1].speed
         origin=elements[follow].pos
         for element in elements:
             element.apply(camera=camera, origin=origin)
             screen.blit(element.image, element.position)
         pygame.display.flip()
     time.sleep(0.001)
+    if tick[2]%60 == 0 : print(elements[follow].pos)
\ No newline at end of file
diff --git a/mecha.py b/mecha.py
new file mode 100755
index 0000000..e347ce1
--- /dev/null
+++ b/mecha.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Created on Mon Jan 27 16:32:02 2020
+
+@author: suwako
+"""
+
+import numpy as np
+
+
+class Mass():
+    def __init__(self, pos=(0,0), speed=(0,0), mass=1):
+        self.pos = np.array(pos, dtype='float64')
+        self.speed = np.array(speed, dtype='float64')
+        self.mass = mass
+        self.G = 0.0000001
+
+    def tick(self):
+        self.pos += self.speed
+
+    def apply_gravity(self, elements):
+        for element in elements:
+            d = element.pos - self.pos
+            norm_d = np.linalg.norm(d)
+            if norm_d != 0:
+                u = d/norm_d
+                norm = self.G * element.mass * (d[0]**2 + d[1]**2)
+                self.speed += norm*u
+
+
+class Player(Mass):
+    def __init__(self, keys={},
+                 orientation=0,
+                 pos=(0, 0),
+                 speed=(0, 0),
+                 mass=1):
+        Mass.__init__(self, pos=pos, speed=speed, mass=mass)
+        self.orientation = orientation
+        self.actions = {"thrust": False, "fire": False}
+        self.actions.update(keys)
+
+    def action(self, keys):
+        self.actions.update(keys)
+if __name__ == "__main__":
+    pass
\ No newline at end of file
diff --git a/server.py b/server.py
index a54ed76..5302c46 100755
--- a/server.py
+++ b/server.py
@@ -43,34 +43,6 @@ def error(*s): print(Fore.RED +
 level = 1
 for i in range(level):
     exec("debug info warn error".split()[i] + "= lambda *x: None")
-class Satellite():
-    def __init__(self, pos=np.array([0., 0.]),
-                 speed=np.array([0., 0.]),
-                 mass=1):
-        self.pos = pos
-        self.speed = speed
-        self.mass = mass
-        self.G = 0.0000001
-
-    def tick(self):
-        self.pos += self.speed
-
-    def apply_gravity(self, elements):
-        for element in elements:
-            if element.pos != self.pos:
-                d = element.pos - self.pos
-                u = d/np.linalg.norm(d)
-                norm = self.G * element.mass * (d[0]**2 + d[1]**2)
-                self.speed += norm*u
-
-
-class Player():
-    pass
-
-
-class Map():
-    def __init__(self):
-        self.elements = []
 
 
 def handle(connection, address):
diff --git a/visual.py b/visual.py
new file mode 100755
index 0000000..873e869
--- /dev/null
+++ b/visual.py
@@ -0,0 +1,14 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""
+Created on Tue Jan 28 10:54:33 2020
+
+@author: suwako
+"""
+import mecha
+
+class Player():
+    def __init__(self):
+        self.mass = mecha.Mass()
+        self.image = pygame.image.load("assets/ship.gif").convert_alpha()
+        self.position = self.image.get_rect()        
\ No newline at end of file