public void SendAssigningRequest(Building_ReligionBuilding toBuilding, AssigningRequestType requestType)
        {
            switch (requestType)
            {
            case AssigningRequestType.Add:
            {
                if (toBuilding.AssigningRequestAccepted(this, requestType))
                {
                    AssignBuilding(toBuilding);
                    Notify_BuildingAssigningChanged();
                }
                return;
            }

            case AssigningRequestType.Delete:
            {
                if (toBuilding.AssigningRequestAccepted(this, requestType))
                {
                    UnassignBuilding(toBuilding);
                    Notify_BuildingAssigningChanged();
                }
                return;
            }
            }
        }
        private bool AssigningRequestAccepted(Building_ReligionBuilding fromBuilding, AssigningRequestType requestType)
        {
            switch (requestType)
            {
            case AssigningRequestType.Add:
            {
                if (MayAssignBuilding(fromBuilding) && fromBuilding.MayAssignBuilding(this))
                {
                    AssignBuilding(fromBuilding);
                    Notify_BuildingAssigningChanged();
                    return(true);
                }
                return(false);
            }

            case AssigningRequestType.Delete:
            {
                UnassignBuilding(fromBuilding);
                Notify_BuildingAssigningChanged();
                return(true);
            }

            default:
                return(false);
            }
        }