I'm not a modder, but I know most modders use SimPE.
Tx very. I've played with SimPE a bit, mostly to browse around inside Sim Description files. I see from the tutorials that it does have some code-related functions, but from what I've found so far they look sort of rudimentary ("change the 0x1004 in the upper-left box to 0x1005, and then put in a bunch of FFs, and then in the operand field put in the hex code for the motive you want to change from the table below"). Is this what JMPescado and Crammyboy and the other wizards use to do their fancy stuff?
I guess (being sort of old-skool myself) I'm wondering if there are like command-line tools that dump BHAVs from a package file to a text file with comments and some kind of human-language translation, and re-assemble human-readable BHAVs back into package files and so on. But maybe that's just me being all old-fashioned and XXth Century...
I'd love to know how the really l33t modders do it; in the mean time I'll look harder at MTS2 and SimPE and see if maybe they have everything I'm looking for and I just haven't stumbled on it yet.
DC