public int stopNavigation()
        {
            runNavigation = false;

            if (!mDrone.iDroneCup_isLanded())
            {
                mDrone.iDroneCup_MoveAdvanced(0.0f, 0.0f, 0.0f, 0.0f);
                mDrone.iDroneCup_Hover();
            }
            return(0);
        }