hey, is there any custom cards that come with pre installed modules?
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Overwhelming majority of BepisDB (link in OP) cards make use of modules. The modules functionality itself comes from AAU, not the card. Or am I misunderstanding your question?
I do have a little bit more to add. Normally modules added to a character card appear in their modules list as normally expected, and their logic flow and global variables appear in the triggers tab of the AUU maker with the name of the module appended on the left. However, when a card author wants to make their card's mechanics different than what available modules offer, they opt to unpack a module. This makes the modules disappear from the module list for the character card, and the triggers no longer state that they came from a module but will otherwise keep their name, sans the name of the original module.
It was what made the
Hadahako custom card so interesting. Originally I was curious as to why it was so different despite what I knew about the modules in the card's list, but I recognized the gameplay mechanics being similar to unlisted modules. Sure enough, many modules were unpacked and edited directly into the character card, along with other functions that are new and original to the card itself outside of what comes in modules.
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Is there a way to modify the pre-made characters? Ive tried looking into the editor, but i dont think i can do much there, especially not change their sexual orientation of characters (think i can screw around with their body proportions but, again, no interest in that). That, and theres quite a bit of info in there, that isnt visible on the outside (like, yep, sexual orientation). While i know its impossible to convert the heathen IRL, the game should be a wee bit less restrictive in this regard... like making it really difficult and time consuming, but not impossible. Meh.
You can totally modify pre-made characters, otherwise you're implying they exist without a card to access. For the version of the game I found and installed within a month's time from today, I boot up the program, choose to create a female character, and load a pre-existing card I want to edit from any directory on my computer. Along with the main window that deals with character aesthetics, sexual orientation, personality, traits, etc there's the AAU window with modules, triggers, fine body scale control, outfit equip slots, and more.
It's totally fine to fork a character and make your spin on them. Save the original somewhere else for reference, and make your edits. Maybe rename them to be distinctly different. Keep going until it's so different it's not the same character anymore. There's plenty of cool spice to add once you get into custom triggers. Modules are a shortcut into these triggers--without knowing anything about making them yourself you can load the module, visit the triggers tab, then study what logic and global variables are there. It's a step closer to learning how to make fun characters that deviate significantly from what AA2 characters could do back when the game was released 9 or so years ago.
I recommend getting inspired to make your own then gradually figure out fun stuff to add as you study other characters people share.