cd .. can take you out of GameShell about gameshell

[phyver]

Is that better? (ad871b1)

[mission 1] $ cd .. 

You left GameShell's directory structure. Use
  $ cd
to go back to the GameShell's starting directory.

[mission 1] $ 

[phyver]

You can go outside of GameShell, but I don't see a way around that. (Using chroot would require root access, and "importing" /usr/bin and all the rest.)

I decided to protect the base directory as it contains things I don't want the player to see: the GameShell source files and directories, temporary files, etc. That's to prevent the player from messing with those files by accident.
You can always go back to GameShell's root directory with cd as the $HOME variable is set accordingly.
("root directory" = $HOME = starting dir of GameShell's "world"; "base directory" = parent of "root directory")

You can easily "unprotect" the base directory with gsh unprotect, but it should probably be used only during development. (Note that when starting in debug mode, the base directory is not protected by default, and it is unprotected for one specific mission that may require accessing GameShell from an outside file manager.)

One thing that would mitigate the problem you describe is checking $PWD in PROMPT_COMMAND and print a message describing how to go back to the root directory.
What do you think?

[daviewales]

Thanks for the detailed response. 😄

I think there should definitely be some help to direct users back to the $HOME directory.
Printing a message as you've described would definitely help!
Perhaps something like:

"You've navigated outside of GameShell. Type cd to return to the GameShell home directory."

[daviewales]

Thank you!