GeneralInteraction_Class.cs

    public class GeneralInteraction : MonoBehaviour
    {
        private Transform _objectToLookAt = null;
        private bool _isRotating = false;
        private Quaternion _defaultRotation;

        public void Start()
        {
            //Store the default rotation of the NPC in case it is rotated towards the player object later.
            _defaultRotation = transform.rotation;
        }

        public void Update()
        {
            if (_isRotating)
            {
                RotateTowards(2f);
            }
        }

        /// <summary>
        /// This method is similiar to what was written on the episode for the player.
        /// The differences are:
        ///   1. Adjusted the done condition to check the players navigation distance. (Otherwise it can stop rotating befoer we're done.)
        ///   2. Checked to see if we have an object to look at. If not, it rotates back to default.
        /// </summary>
        /// <param name="speed">How quickly the rotation will occur.</param>
        public void RotateTowards(float speed)
        {
            Quaternion lookRotation;

            //Check to see if there's an object to rotate towards. If not, we're going back to the default location.
            if (_objectToLookAt != null)
            {
                Vector3 direction = (_objectToLookAt.position - transform.position).normalized;
                lookRotation = Quaternion.LookRotation(direction);
            }
            else
            {
                lookRotation =  _defaultRotation;
            }

            //Rotate
            transform.rotation = Quaternion.Slerp(transform.rotation, lookRotation, Time.deltaTime * speed);

            //Check if we should be done rotating. Null check as sometimes it drops the object before we've finished this call.
            if (_objectToLookAt != null && _objectToLookAt.tag.Equals("Player"))
            {
                if (Quaternion.Angle(transform.rotation, lookRotation) < 1 &&  && _objectToLookAt.GetComponent<MovementController>().GetIsNavigationDonePathing())
                {
                    _isRotating = false;
                }
            }
            else
            {
                if (Quaternion.Angle(transform.rotation, lookRotation) < 1)
                {
                    _isRotating = false;
                }
            }
        }
    }