A little successful experiment involving adding a new player stat. in this case it was money:
before I walked over the health pickup:
after:
I created a new player stat in the source code, proliferated it everywhere player data is manipulated. Added another hud image and location, added in a new ai command to add player money, added the command to the pickuphealth script. So when I picked up the health, not only did I get a health boost, but I gained 1000 money!
The bad news is the games have to use my .exe, because it was extensive source code modification.
Add functions to your .fpi to add/remove money from the player, gets preserved between levels. Next little mod is to add money when a creature dies, or spawn a money pickup item.
