Comment by ericb

I don't know the game, but I recognized the name. Werecat is a very cool project by this author!

http://www.whicken.com/werecat/overview.html

The Werecat Rules Engine is a freely available framework for building and evaluating simple, hierarchical rule structures. Using Java reflection, you can easily plug in your own data and functions to create a highly dynamic rules-based structure with very little coding effort.