Calculate euler angles in DOTS by the Quaternion class

Hello everyone!
I use Euler angles to calculate a boolean value:

Code (CSharp):

1.     public static bool GetIsFlipDirection(Rotation rotation)
2.     {
3.         Quaternion rotationValue = rotation.Value;
4.         var anglesZ = rotationValue.eulerAngles.z;
5.         bool flipY = anglesZ > 90 && anglesZ < 270;
6.         return flipY;
7.     }
8.  

Is it a good way to use Quaternion in DOTS? Is it compatible with Burst? I really couldn't find a way to use Unity.Mathematics to calculate Euler angles.

 

I used this

Code (CSharp):

1. public static float3 ToEulerAngles(quaternion q) {
2.     float3 angles;
3.  
4.     // roll (x-axis rotation)
5.     double sinr_cosp = 2 * (q.value.w * q.value.x + q.value.y * q.value.z);
6.     double cosr_cosp = 1 - 2 * (q.value.x * q.value.x + q.value.y * q.value.y);
7.     angles.x = (float)math.atan2(sinr_cosp, cosr_cosp);
8.  
9.     // pitch (y-axis rotation)
10.     double sinp = 2 * (q.value.w * q.value.y - q.value.z * q.value.x);
11.     if (math.abs(sinp) >= 1)
12.         angles.y = (float)CopySign(math.PI / 2, sinp); // use 90 degrees if out of range
13.     else
14.         angles.y = (float)math.asin(sinp);
15.  
16.     // yaw (z-axis rotation)
17.     double siny_cosp = 2 * (q.value.w * q.value.z + q.value.x * q.value.y);
18.     double cosy_cosp = 1 - 2 * (q.value.y * q.value.y + q.value.z * q.value.z);
19.     angles.z = (float)math.atan2(siny_cosp, cosy_cosp);
20.  
21.     return angles;
22. }
23.  
24. private static double CopySign(double a, double b) {
25.     return math.abs(a) * math.sign(b);
26. }

 

@mr-gmg Thank you very much.
I checked the performance of your solution.

Code (CSharp):

1. [BurstCompile]
2. iterations: 10000000
3. Quaternion.eulerAngles   =>  ~670ms
4. ToEulerAngles()            =>  ~260ms