case DNGN_EXIT_HELL:

    }
}
static bool _is_feature_fudged(int feature, int x, int y)
{
    if (!env.map[x][y].object)
        return (false);
    if (is_feature(feature, x, y))
        return (true);
    // 'grid' can fit in an unsigned char, but making this a short shuts up
    // warnings about out-of-range case values.
    short grid = grd[x][y];
    if (feature == '<')
    {
        switch(grid)
        {
        case DNGN_EXIT_HELL:
        case DNGN_EXIT_PORTAL_VAULT:
        case DNGN_EXIT_ABYSS:
        case DNGN_EXIT_PANDEMONIUM:
        case DNGN_RETURN_FROM_ZOT:
            return true;
        default:
            return (false);
        }

    else if (feature == '>')
    {
        switch (grid)
        {
        case DNGN_ENTER_DIS:
        case DNGN_ENTER_GEHENNA:
        case DNGN_ENTER_COCYTUS:
        case DNGN_ENTER_TARTARUS:
        case DNGN_TRANSIT_PANDEMONIUM:
        case DNGN_ENTER_ZOT:
            return (true);
        default:
            return (false);
        }
    }
    return (false);

                if (is_feature(feature, x, y))

                if (_is_feature_fudged(feature, x, y))

        if (is_feature(feature, coord.x, coord.y))

        if (_is_feature_fudged(feature, coord.x, coord.y))