Universe.Physics.BulletSPlugin.BSPrim.UpdateProperties C# (CSharp) Method

        public override void UpdateProperties(EntityProperties entprop)
        {
            // Let anyone (like the actors) modify the updated properties before they are pushed into the object and the simulator.
            TriggerPreUpdatePropertyAction(ref entprop);

            // DetailLog("{0},BSPrim.UpdateProperties,entry,entprop={1}", LocalID, entprop);   // DEBUG DEBUG

            // Assign directly to the local variables so the normal set actions do not happen
            _position = entprop.Position;
            _orientation = entprop.Rotation;

            bool terseUpdate = false;

            if (entprop.Velocity != OMV.Vector3.Zero && entprop.Velocity.ApproxEquals(OMV.Vector3.Zero, 0.01f) &&
                Velocity != OMV.Vector3.Zero)
            {
                entprop.Velocity = OMV.Vector3.Zero;
                entprop.Acceleration = OMV.Vector3.Zero;
                entprop.RotationalVelocity = OMV.Vector3.Zero;
                Velocity = RawVelocity = OMV.Vector3.Zero;
                ZeroMotion(true);
                terseUpdate = true;
            }

            // DEBUG DEBUG DEBUG -- smooth velocity changes a bit. The simulator seems to be
            //    very sensitive to velocity changes.
            if (entprop.Velocity == OMV.Vector3.Zero ||
                (VehicleType != 0 /*&& !entprop.Velocity.ApproxEquals(RawVelocity, 0.01f)*/) ||
                !entprop.Velocity.ApproxEquals(RawVelocity, BSParam.UpdateVelocityChangeThreshold / 2f))
            {
                terseUpdate = true;
                RawVelocity = entprop.Velocity;
            }
            _acceleration = entprop.Acceleration;
            _rotationalVelocity = entprop.RotationalVelocity;

            // DetailLog("{0},BSPrim.UpdateProperties,afterAssign,entprop={1}", LocalID, entprop);   // DEBUG DEBUG

            // The sanity check can change the velocity and/or position.
            if (PositionSanityCheck(true /* inTaintTime */))
            {
                entprop.Position = _position;
                entprop.Velocity = RawVelocity;
                entprop.RotationalVelocity = _rotationalVelocity;
                entprop.Acceleration = _acceleration;
            }

            // 20131224 not used        OMV.Vector3 direction = OMV.Vector3.UnitX * _orientation;   // DEBUG DEBUG DEBUG
            //DetailLog("{0},BSPrim.UpdateProperties,call,entProp={1},dir={2}", LocalID, entprop, direction);

            // remember the current and last set values
            LastEntityProperties = CurrentEntityProperties;
            CurrentEntityProperties = entprop;

            if (terseUpdate)
                RequestPhysicsterseUpdate ();
            /*
            else
            {
                // For debugging, report the movement of children
                DetailLog("{0},BSPrim.UpdateProperties,child,pos={1},orient={2},vel={3},accel={4},rotVel={5}",
                        LocalID, entprop.Position, entprop.Rotation, entprop.Velocity,
                        entprop.Acceleration, entprop.RotationalVelocity);
            }
            */
         }