Multichoice List that contains a variable number of selections? (pokeemerald)

[Moistnar]

So I'm in the process of making the scientist in Devon Corp that revives the fossil you pick up in Mirage Tower be able to revive any fossil from Gens 1-6 (since the gen 8 fossils are acquired differently). I noticed there was a map script in the base game that accounted for the situation where you bring both fossils to him, and it calls a multichoicelist that lets you choose which one you want to revive. However, since multichoicelists are a predefined structure, if I were to go about this the traditional way I would have to make 2048 different multichoice lists to account for every combination of fossils you could bring to him (which obviously isn't feasible). Is there a way to create a single multichoice list that checks which fossils you have, and then presents you with those options as a multichoicelist? Or do I have to solve this problem another way (like just picking the first one in the bag or something). I'm still kinda a novice at scripting, so any help is appreciated

 

[Anon822]

One way to do this would be to call a custom C function from your script to generate a multichoice menu based on the fossils you have in your bag.
Take a look at DizzyEgg's BW Repel modification, which does exactly that with different repels.

 

[Lunos]

So I'm in the process of making the scientist in Devon Corp that revives the fossil you pick up in Mirage Tower be able to revive any fossil from Gens 1-6 (since the gen 8 fossils are acquired differently). I noticed there was a map script in the base game that accounted for the situation where you bring both fossils to him, and it calls a multichoicelist that lets you choose which one you want to revive. However, since multichoicelists are a predefined structure, if I were to go about this the traditional way I would have to make 2048 different multichoice lists to account for every combination of fossils you could bring to him (which obviously isn't feasible). Is there a way to create a single multichoice list that checks which fossils you have, and then presents you with those options as a multichoicelist? Or do I have to solve this problem another way (like just picking the first one in the bag or something). I'm still kinda a novice at scripting, so any help is appreciated

If you want to do something like this in a smooth manner, you'll probably have to dive into C code.
I wanted to do something like this with a multichoice that listed options dynamically, but that didn't go well for me.
If you're interested enough, Emerald has one instance of a multichoice that is filled dynamically; the ship at Lilycove City. You could probably use that as a reference.
Check out the ScriptMenu_CreateLilycoveSSTidalMultichoice and GetLilycoveSSTidalSelection functions in src/script_menu.c for more info.