How do I rotate a 2D object based on it's velocity?

Questions & Answers
1

Hello everyone,

I am working on a 2D game and I am trying to get my character to rotate based on its velocity. An example of the effect that I am trying to get can be seen in this video: Geometry Dash - Stereo Madness - All Coins - YouTube

Quaternions and rotation in general are a bit over my head, and trying to map rotation to the characters velocity makes it even more difficult. Can someone help me out?

2

The following code assumes that the front side of your sprite is pointing right when the rotation is (0,0,0).

function FixedUpdate() {
var dir = rigidbody2D.velocity;
var angle = Mathf.Atan2(dir.y, dir.x) * Mathf.Rad2Deg;
rigidbody2D.MoveRotation(angle);
}

No Quaternions involved :slight_smile: