[ASM & Hex] Location-based evolutions

[RoadToCerulean]

Hello, guys. I'm a big fan of Eevee and his evolution variants.

I have played some GBA hacks including new Eeveelutions after Generation IV (Leafeon, Glaceon and Sylveon), but their evolution methods are not that satisfactory. For example:
1. In Pokémon Glazed, Leafeon and Glaceon are either found in the wild or given by NPCs, but cannot be evolved from Eevee;
2. In Pokémon Victory Fire and Pokémon Resolute, Leafeon, Glaceon and Sylveon (Resolute only) are evolved from an alternate Eevee using an evolution stone each, similar to Kanto Eeveelutions;
(If I'm playing outdated versions of these hacks I'll be grateful if you can inform me about them)

I was not inspired until I played a Generation I hack: Pokémon Red++ (by Mateo), in which Eevee gains location based evolution methods. So the main problem is:
How can I make a Pokémon evolve when leveled up at a certain location in GBA ROMS?
(e.g when the player is in Viridian Forest, Seafoam Islands, Power Plant, etc)

 

[Zeturic]

If you're wanting to do this for Eevee, you're going to need to expand the evolution table. There's only room for 5 evolutions per Pokemon, and that's not enough to add Leafeon and Glaceon.

Once that's done, you're nearly there.

It's actually already been implemented. It's available here.

Just insert the ASM, and then set a Pokemon so that it evolves by it.

 

[RoadToCerulean]

If you're wanting to do this for Eevee, you're going to need to expand the evolution table. There's only room for 5 evolutions per Pokemon, and that's not enough to add Leafeon and Glaceon.

Once that's done, you're nearly there.

It's actually already been implemented. It's available here.

Just insert the ASM, and then set a Pokemon so that it evolves by it.

Thanks:pink_boogie:, I'll try it out in my hack.