Unity 360 degree

I want to find angle between two vectors (or three points). There is a built in function Vector3.Angle but it only gives angle between -180 to +180. So How can I get 360 degree angle between two vectors?

 

the range of -180 to 180 is 360 degrees

A -1 degree means 1 degree clockwise, or 359 degrees counter-clockwise.

0 and 360 are equal.

It comes back in that range because the trig functions used to calculate angles stay in the range of -pi to pi. And pi radians is 180 degrees.


If you want to normalize your angle in a 0 -> 360 range, you add 360 to the value until it's positive, and then modulo around 360.

Code (csharp):

1.  
2. public static float NormalizeAngleTo360(float angle)
3. {
4.     while(angle < 0f) angle += 360f;
5.     return angle % 360f;
6. }
7.