I'm interested in your opinion, what do you think about this?: you have to explore, search, and find where those resources can be harvested. At first you don't know where they are, but you have to experiment with each entity you find, try all actions on them, and that way you can learn what resources they can give.
hmm might be too discouraging to new players. They'll probably pickup the game try to collect stuff and their anger might be kindled against it and just give up on trying. I like the idea, but maybe a little guidance for new players that way they are made aware of this or something. I'm interested in seeing how this project develops keep up the great work!