Oh, interesting. So actually that wasn't a feature of Burps and Bellies, it was a feature of the main dialogue mod that wasn't really intentional. Basically, whenever you'd ask someone something, it would run a script to decide whether the NPC woud say yes or no. But that script is part of a piece of dialogue, and normally you'd have to have the NPC say something to run it. But you can have a line play audio to conceal the dialogue and just run a script, so I literally just picked the "Gurgle" sound effect from DFAM and used it to conceal when I was running scripts. So actually, it wasn't an indicator of them being hungry or full, etc, it was completely random. I eventually discovered that there were silent audio files in the game that were there for the exact same thing, so I replaced the gurgles with that.
But, that's actually a very fun idea, and something that would be fairly easy to implement honestly. So I think I could probably do something closer to what you're actually saying (sounds indicating the NPC's hunger). I think the biggest thing would just be sourcing the audio files.
Oh interesting! Never would've guess that wasn't intentional before. It seemed so well timed. And yiss! That's exactly what I'm asking and super glad you like the idea. If a Pred's talking about how hungry they are, a growly tum really drives the point home imo. Even when watching monster movies, if a vampire insists they're starving and hungry enough to lose self control, but I'm not hearing anything from their middle I'm like...are you really? XD Just a nice extra little bit of immersion I felt complemented Devourment really well