The mechanics will actually work almost identically to the video games. I've pulled formulas from the games themselves to use in calculating growth rates, damages, hit percents, and so on. You can use [url=http://www.serenesforest.net/]Serenes Forest[/url] to view the calculations and other game mechanics available for each game, just click the title on the left of the homepage and each game has their own databases for everything you'd want to know about them.