code: def draw_actions(self):
      
      now = time.time()
      for act in self._past_actions:
        if act.pos and now < act.deadline:
          remain = (act.deadline - now) / (act.deadline - act.time)
          if isinstance(act.pos, point.Point):
            size = remain / 3
            self.all_surfs(_Surface.draw_circle, act.color, act.pos, size, 1)
          else:
            # Fade with alpha would be nice, but doesn't seem to work.
            self.all_surfs(_Surface.draw_rect, act.color, act.pos, 1)
docs: Draw the actions so that they can be inspected for accuracy.