static int  _check_adjacent(dungeon_feature_type feat, int &dx, int &dy);

 * Check squares adjacent to player for given feature and return how
 * many there are.  If there's only one, return the dx and dy.
 */
static int _check_adjacent(dungeon_feature_type feat, int &dx, int &dy)
{
    int num = 0;
    int _dx, _dy;
    for (int x = -1; x <= 1; x++)
        for (int y = -1; y <= 1; y++)
            if (grd[you.x_pos + x][you.y_pos + y] == feat)
            {
                num++;
                _dx = x;
                _dy = y;
            }
    if (num == 1)
    {
        dx = _dx;
        dy = _dy;
    }
    return num;
}
/*

    // If there's only one door to open, don't ask.
    if ((!check_confused || !you.duration[DUR_CONF])
        && !(move_x || move_y))
    {
        if (_check_adjacent(DNGN_CLOSED_DOOR, move_x, move_y) == 0)
        {
            mpr("There's nothing to open.");
            return;
        }
    }

    // If there's only one door to close, don't ask.
    if (!you.duration[DUR_CONF] && !(door_x || door_y))
    {
        int num = _check_adjacent(DNGN_OPEN_DOOR, door_x, door_y);
        if (num == 0)
        {
            mpr("There's nothing to close.");
            return;
        }
        else if (num == 1 && !(door_x || door_y))
        {
            mpr("You can't close doors on yourself!");
            return;
        }
    }

    if (you.duration[DUR_CONF] && !one_chance_in(3))
    {
        door_x = random2(3) - 1;
        door_y = random2(3) - 1;
    }