World selector does not traverse directories

[SaxxonPike]

The original engines both do not allow the traversal of directories in the world selector. All game worlds need to share a directory with the game executable.

In the future, we would like to make it possible to navigate through the filesystem. This would have some security implications and cross-platform nastiness involved, but it's probably something we should include.

We would like some input on how this should be implemented, as it extends ZZT's capabilities and therefore there's no frame of reference.

[hegyak]

I think the world browser should not go above the root folder for Roton/Lyon. Example:
C:\Games\ZZT

The game should not allow me to browse to C:\Games or C:\

Due to the cross-platform nature of things, permission checking when attempting to navigate to another folder is necessary.

[Spectere]

The world browser would have to be able to freely traverse the filesystem in order to work acceptably in macOS and Linux. If Roton were installed system-wide (which is common when using a distro's package manager), users would need to be able to browse to their home directory in order to access their personal collection of worlds. Whenever we get around to releasing Mac app bundles that point will be even more important due to how they're laid out (the executable would be located in Roton.app/Contents/MacOS/, and having to slip ZZT files in there would be painful).

If maintaining the aesthetic is important, I'd suggest putting the directories (and drive letters in the case of Windows) at the bottom of the list, preferably in a different color to distinguish them from the files.

If some extra rule bendage/breakage is acceptable, I'd say model it after what MegaZeux currently has. That would require new UI controls to be created, however, and it wouldn't feel as ZZT-like.

[hegyak]

I took a look at KevEdit and it does look like a reasonable solution to this question. It keeps the ZZT Look/Feel while also supporting modern users.