在Box2D中检测碰撞而不是联系人

Question

First, let me define how I perceive these two concepts:

Collision happens when Object A collides/bumps/runs into Object B . As in they come into contact with each other, but with a high velocity.

Contact happens when Object A touches Object B . As in they come into contact with [very] low velocity. As in they just touch.

In Box2D , we assign ContactListener s to the PhysicsSystem in order to detect a contact. My question is, how do we detect a collision ?

I'm using AndEngine in my project.

Answer 1

您可以在接触侦听器的BeginContact函数中检查两个物体的相对速度。