Best way to set Unity.Physics limited hinge min/max angle constraint?

Hi all,

I have a piece of ugly looking code that I'm unsure if it's the best way to go – perhaps one of you has a better solution.

I have car-related physics code in which I have a spindle attached to the car's chassis, which turns on a limited hinge joint. I'm using the PhysicsJoint's min/max constraint to turn the spindle.

So in my VehicleMechanicsSystem, what I am doing is iterate over the PhysicsJoint-s, and if they are a spindle, set the constraints:

Code (CSharp):

1. public void Execute(ref PhysicsJoint physicsJoint)
2. {
3.     var potentialSpindleEntity = physicsJoint.EntityA;
4.     if (spindleComponentData.Exists(potentialSpindleEntity))
5.     {
6.         var spindle = spindleComponentData[potentialSpindleEntity];
7.        
8.         var targetRotRad = spindle.desiredAxisRotationRad;
9.         var constraints = physicsJoint.JointData.Value.Constraints[0];
10.         constraints.Min = targetRotRad - 0.01f;
11.         constraints.Max = targetRotRad + 0.01f;
12.         physicsJoint.JointData.Value.Constraints[0] = constraints;
13.        
14.         spindleComponentData[potentialSpindleEntity] = spindle;
15.     }
16. }

What's bothering though is the `physicsJoint.JointData.Value.Constraints[0]` – this can't be the right way to set the Min and Max…? Or is it?

Thanks for any help!

P.S: Setup of the GO (converted into entities):

 

P.P.S: Just found the Physics Preview Forum, reposted there: https://forum.unity.com/threads/dot...imited-hinge-min-max-angle-constraint.736301/ (Apologies)