[raymath] Angle returned by Vector2Angle() isn't correct

[Knose1]

Like this post say, the angle isn't correct.
I used to multiply one of the vectors by 1000 when calling the function to avoid that problem.
The problem came back with Vector2Angle({0,1}, {0,1000}) the result shall be 0 but the returned value is 90

I fixed it by replacing this line

raylib/src/raymath.h

Line 284 in 49a5547

float result = atan2f(v2.y - v1.y, v2.x - v1.x)*(180.0f/PI);

By this one in the raymath.h of my project

float result = atan2(v2.y, v2.x) - atan2(v1.y, v1.x) * (180.0f / PI);

[schveiguy]

This should be closed now.

[raysan5]

@leowribeiro Note that Vector2Angle() returns angle in radians so you can not operate with -180 directly.

[raysan5]

@leowribeiro that's because you are using an old version of raylib. That was an issue that was fixed some time ago. Now Vector2Angle() return radians, not degrees.