在 Unity 中更改默认对撞机反弹方向

Question

I'm creating a Breakout clone in Unity and want to change the direction of the ball based on if the ball hits the left side or the right side of the paddle, as in the original version of the game. What is the best way of accomplishing this? I tried adding angled colliders to my paddle, but that causes the ball to fall slightly through the paddle before hitting the collider and changing direction.

Answer 1

You should have access to the rigid body that you are colliding with, which will tell you the angle you want to bounce at. Then, you do a late modification of the trajectory ("late" as in after your physics are calculated and applied for velocity). Something like this should work:

Rigidbody2D.velocity = newDirection.normalized * Rigidbody2D.velocity.magnitude;