I'm going to assume this is impossible but who knows - here goes.
Is there a way (with a Squiffy adventure checked in to textadventures) to gain information from a pre-specified location on the user's computer? For example, if the user wanted to put in his name and picture (say on "C:SquiffyData") could this be recovered for use in the game?
I know that it could be done with the game in it's development mode (i.e. in a folder on the computer) but I don't know if a game in the textadventures library can accept user data.
Without building a bespoke browser extension, no you can't call images from a user's hard-drive. It would be a rather serious security vulnerability if it were possible for a web page to access a user's hard-drive so easily.
But why do you want to do this? Why not just store the name via a Squiffy attribute?
I had an idea to "personalize" the adventure - allow the player to enter characters they know for allies and villains met along the way.
I didn't think there would be an easy way to do this. Thanks all the same.
Entering names for characters is fairly easy. Look at the documentation for attributes.
If you want to go down that path:
But if I was you I'd stick with the names but drop the images.