Is this the best way to Freeze Position?

Unity Engine
, ,
1

RigidBody has FreezePosition in Constraints, but Physics For ECS does not.
Is this the best way to do it?

    public class ConstraintsPositionAuthoring : MonoBehaviour
    {
        public bool3 linerConstrainedAxes; // x, y, z


        public class Baker : Baker<ConstraintsPositionAuthoring>
        {
            public override void Bake(ConstraintsPositionAuthoring authoring)
            {
                // The entity will be moved
                var entity = GetEntity(TransformUsageFlags.Dynamic);

                // create PhysicsJoint
                Constraint constraint = new()
                {
                    ConstrainedAxes = authoring.linerConstrainedAxes,
                    Type = ConstraintType.Linear,
                    Min = 0,
                    Max = 0,
                    SpringFrequency = Constraint.DefaultSpringFrequency,
                    SpringDamping = Constraint.DefaultSpringDamping
                };

                FixedList512Bytes<Constraint> fixedList = new(){
                    constraint
                };

                PhysicsJoint physicsJoint = new();
                physicsJoint.SetConstraints(fixedList);


                // create PhysicsConstrainedBodyPair
                PhysicsConstrainedBodyPair bodyPair = new(entity, Entity.Null, false);

                // add them
                AddComponent(entity, physicsJoint);
                AddComponent(entity, bodyPair);
            }
        }
    }

memo: As for Rotation, it is possible by setting Infinity to Inertia Tensor in the Override Default Mass Distribution in the Advanced section of Physics BodyAuthoring.

2

You could simply reset the corresponding position components in your rigid body to whatever you want them to be using a system, updated in AfterPhysicsSystemGroup. That would be more efficient and more precise than using a joint.