Describes collision.
描述碰撞。
Collision information is passed to Collider.OnCollisionEnter, Collider.OnCollisionStay and Collider.OnCollisionExit events.
碰撞(Collision)信息是传递到Collider.OnCollisionEnter, Collider.OnCollisionStay 和 Collider.OnCollisionExit事件。
参见: ContactPoint.