I'm trying to do a capture RNG in the dark grass (wild double battles). The pokemon cannot be found elsewhere. I used RNG reporter to get a list of Gen 5 PIDRNG info for my seed. Looking at this
post shows that if you get the pokemon that would appear on the right the determination if the nature is from synch is from the current frame, encounter slot is shifted by one, and gender is shifted by 3. Thus I can piece together what frame I want to hit.
That post also shows that a call is used to determine if you get a double battle or not. However, I have noticed that even if you get a single battle sometimes you get the pokemon that would be in the right slot and sometimes you get the pokemon that would be in the left slot. This makes me think that the double battle check has two ways to return a single battle. Does anyone know how to determine which one will be hit without having to check every potential frame on an actual DS? Also, does anyone know how the IVs are determined if you do get a double battle? Does it just take the next IV frame for the pokemon on the left?
EDIT: Scratch that. Further tests show I have no idea what I'm doing. Does anyone have any hints for RNGing in dark grass?