public int checkHoleOnSides(int a_x, int a_y)
    {
        //Check right
        boolean onRight = false;
        if((m_lastCell > a_x+1) && !checkObstacle(a_x+1, 0, a_x+1, a_y))
        {
            onRight = true;
        }

        //Check left
        boolean onLeft = false;
        if(!checkObstacle(a_x-1, 0, a_x-1, a_y))
        {
            onLeft = true;
        }

        //RETURN SOMETHING
        if(onRight && onLeft)
            return Node.MAP_HOLE_ON_BOTH;
        else if(onRight)
            return Node.MAP_HOLE_ON_RIGHT;
        else if(onLeft)
            return Node.MAP_HOLE_ON_LEFT;
        else
            return MAP_OBSTACLE;
    }