def velocity(self):
""" updates velocity """
for i, body in enumerate(self._body_list):
v = Physics.velocity(body.get_velocity(), self.dt,
self.a_matrix[:, i])
body.set_position(v, self.dt)
if i == 1:
self._velocity_analytics.add_data(self._t, la.norm(v))
self._t += self.dt
self.render()
