How are the intersection points obtained in OnCollision?

[Vasilisk8]

I consider the collision of two hit boxes, sometimes there are two intersection points, sometimes three, and sometimes six, why is it so, how does Flame calculate these points?

[spydon]

The collisions are only calculated once per tick, this means that almost always your hitboxes will overlap a bit and every intersection point is where the hitboxes intersect at this time.