title: how do I make a sphere rotate around another sphere in ursina, python
body: <pre><code>from ursina import *
  
  # update sphere_2 rotation
  def update():
      line.rotation_y += 1
      sphere_2.rotation_y += 1
  
  app = Ursina()
  sphere_1 = Entity(model = 'sphere',scale = 2)
  # try to make sphere_2 follow the lines rotation
  line = Entity(model = 'line',scale = 4,y = -1)
  sphere_2 = Entity(model = 'sphere',scale = 1,x = -2)
  app.run()
  </code></pre>