Nice bug ya got there, gamefreak.
Coulda cleared the AffixedRibbon value instead of copying it on Shedinja creation, and it would have made this unnecessary.
Please ditch the Affixed Ribbon gimmick for future games, thanks!
Relocate the SetRandomEC at the tail end of the generator into the specific classes that set EC, so that our correlation generators don't have their EC overwritten at the end.
## Issue
We want to discard-but-remember any slots that aren't a perfect fit, on the off chance that a better one exists later in the search space. If there's no better match, then we gotta go with what we got.
## Example:
Wurmple exists in area `X`, and also has a more rare slot for Silcoon, with the same level for both slots.
* We have a Silcoon that we've leveled up a few times.
Was our Silcoon originally a Wurmple, or was it caught as a Silcoon?
* To be sure, we have to check the EC/PID if the Wurmple wouldn't evolve into Cascoon instead.
* We don't want to wholly reject that Wurmple slot, as maybe the Met Level isn't within Silcoon's slot range.
---
Existing implementation would store "deferred" matches in a list; we only need to keep 1 of these matches around (less allocation!). We also want to differentiate between a "good" deferral and a "bad" deferral; I don't think this is necessary but it's currently used by Mystery Gift matching (implemented for the Eeveelution mystery gifts which matter for evolution moves).
The existing logic didn't use inheritance, and instead had static methods being reused across generations. Quite kludgy. Also, the existing logic was a pain to modify the master encounter yield methods, as one generation's quirks had to not impact all other generations that used the method.
---
The new implementation splits out the encounter yielding methods to be separate for each generation / subset. Now, things don't have to check `WasLink` for Gen7 origin, because Pokémon Link wasn't a thing in Gen7.
---
## Future
Maybe refactoring yielders into "GameCores" that expose yielding behaviors / properties, rather than the static logic. As more generations and side-gamegroups get added (thanks LGPE/GO/GameCube), all this switch stuff gets annoying to maintain instead of just overriding/inheritance.
## Conclusion
This shouldn't impact any legality results negatively; if you notice any regressions, report them! This should reduce false flags where we didn't defer-discard an encounter when we should have (wild area mons being confused with raids).
Closes#3133
not an ideal solution, but the encounter matching API is kinda limited in deferred-invalid vs deferred-notIdeal.
probably need to unify the match logic and generators so they can cache one secondary-check invalid
AltForm & Form & Forme => Form
GenNumber & Generation => Generation
Extract out SpeciesForm interface, and re-add IGeneration
For those using PKHeX as a dependency, this should be a pretty straightforward manual replacement... GenNumber and AltForm should be quick find-replace`s.
Metagross collision with wild beldum
deferral API is kinda crude, hence these janky workarounds. Was originally intended to hold onto close matches when there's no more possible matches to check.
I think a priority-deferral while only retaining a single encounter bad (instead of a list of retries) may work better than the current setup, but that would require more abstraction
Move form-info logic from FormConverter to AltFormInfo; now FormConverter is entirely form=>string[]
Add a bunch of xmldoc
Make pogo no-end-date cmp agaisnt UTCnow rather than local now.
