Focus Sash in Generation 3?

[Gym leader ???]

Has anyone tried working on a focus sash for generation 3 games?

 

[72485rahul]

Probably, using Updated Sturdy's effect, it may work.

 

[Gym leader ???]

Sorry, how do I use "Updated Sturdy's effect"?

 

[72485rahul]

You need to learn ASM for it.

 

[BluRose]

You need to learn ASM for it.

no, no he doesn't. not to insert sturdy's effect, anyways~
https://www.pokecommunity.com/posts/8599873/
ok so
this literally REQUIRES doesntknowhowtoplay's physical/special split patch. there's no reason not to ahaha

i believe that you should be able to just point to either a.) the routine, or b.) the 18th (17th +1 for THUMB mode) byte of the routine (to skip the sturdy check and go straight to "CheckHP"
this would be the battle effect and not the field script or however your item editor puts it

i may be totally wrong, though, so good luck

EDIT: so, what we need to do in a basic sense is check for the item that we want focus sash to be within the updated sturdy effect and then branch off to CheckHP.

nearly totally unrelated, but:

Spoiler:

while attempting to test i had forgotten that i set the max level to 6 when attempting to help out elaf

so yeah, ahaha

EDIT2: so i manage to get the item check in there and everything
but, it will say "[Pokemon] ENDURED the hit!" and then continue to activate every time, keeping it at one HP. will fix <3