Converting THAC0 to 5E System: Where Can I Find 'characters[currentID].THAC0.details' Values?

Mbk10298

Hey there! I've had this idea for a while to modify the Baldur's Gate 1 UI and its 2E THAC0/AC system to resemble that of 5E and BG3. It's something I've been curious about and wanted to try, just to see how far I can go with it. However, I've run into an issue.

While I was able to adjust the displayed weapon stats to match the 5E system (e.g., a THAC0 of 18 now translates to +2 to attack, 10 is +10, etc.), the page where you can see your detailed stats hasn't been adjusted.

In trying to figure out where the game tracks these variables, I came across characters[currentID].THAC0.details , which seems responsible for tracking my Base THAC0: 20 and Strength Modifier: -2 (and possibly anything else that modifies THAC0).

I want to make it so the stat screen shows Base THAC0 as 0 and Strength Modifier as +2 instead of -2. The problem is, I can't find anywhere in the code where I can modify the characters[currentID].THAC0.details value.

Any ideas on where I should look for it, or is it hardcoded into the engine?

Mbk10298

I wrote a script that outputs the new modified stats into your inventory, so that issue has been solved.

Now, I'm curious as to how to modify the combat log so that it shows:
D20 roll + attack bonuses (including the newly changed "THAC0" bonuses) = total : enemy AC.

I know the Reveal Hidden Gameplay Options mod has a feature to expand the combat log, so it must be possible to edit it somewhere.