public static Angle FromDirectionVector(Vector vec)
{
var dirVec = vec.Length == 1 ? vec : vec.Normalized;
return(FromRadians(MathP.Atan2(dirVec.Y, dirVec.X)));
}
public static Angle FromPoints(Vector v1, Vector v2)
{
var dirVec = (v2 - v1).Normalized;
return(FromRadians(MathP.Atan2(dirVec.Y, dirVec.X)));
}