Undo Restart Restore � Blog Archive � Some useful Inform 7 extensions

Undo Restart Restore � Blog Archive � Some useful Inform 7 extensions: "Epistemology by Eric Eve

By far the most useful extension I’ve yet found. The first thing I do every time I start a new project is including this extension because it will almost certainly be used.
Epistemology adds two properties to every thing in the game: seen/unseen and familiar/unfamiliar. Every object starts as unseen and when the player encounters things (is in the same room or looks in the container where the object is) they automatically change to being seen. The familiar/unfamiliar property is what the author can toggle when needed if the player character already knows about something or learns about it during the game. The author can test whether a thing is either seen or familiar by checking if it’s known or unknown."