@shin - My friend, you would insert it into your project, and press, F12, and play ^_^
Edit :- And start a 'New Game'
It modifys the battlers stats from the current weather and shows it during battle. should work with any battle system

Im actually waiting on my post being accepted (i posted the finished script in the forums)
@ wrigty12
I finally managed to fix the issue with states not being removed properly. When your weather changes it should automatically change the stats. ^_^
Also, I cannot see any reason within yanflys script that would make the two conflict.
I would recommend having yanflys script below this one just to be safe, but it should work in unison.
Anyway, redownload the script. It has been updated with the fix
