pokefirered VS RomPatcher.js

Definitely definitely look at doing your project as a decomp using pokefirered or The Complete Fire Red Upgrade.

Pokémon Ruby/Sapphire, Pokémon FireRed/LeafGreen and Pokémon Emerald.

The quickest way would be to edit the decompilation. All the graphics are stored there as separate files there allowing you to easily replace them.

The "Person ID" is what I was referring to in my previous reply. You should write the ID of a flag there. Then make sure the flag is cleared if you want the NPC to appear and make sure it's set if you want it to not appear. You can find a list of valid and unused flags here.

Or use the pokefirered source code decompilation project.

You will have to program those mechanics into the game. You can do that by using the pokefirered decompilation.

If you're just now trying to get into romhacking, the best thing to do is to check out the pokefirered decomp project here. I have the most up to date video tutorial series for the decomps, I use pokeemerald in my tutorials but a large part of everything is the same. We have access to the full decompiled source code, so it's really easy to make changes to whatever you want and the workflow is practically identical to what the actual Pokemon devs would have been doing, whereas binary hacking, the old outdated method, is its own entire thing.

Weird question but, how do games which are coded like pokemon work? https://github.com/pret/pokefirered/tree/master/src for example this disassembly in c. Seems like each component has its own file, like battle.c or trade.c etc. How do these components communicate with each other? How and where does the main gameloop run? I would be very glad to get more info and write something like this game on my own (each component in own file, not pokemon 2)) ), because I'm not good at game architecture and cant resolve this on my own. thx in advance

You need to patch your rom with the translation patch. On PC there's offline patchers, but using something like https://www.marcrobledo.com/RomPatcher.js/ is probably easiest on mobile.

In that case, you're gonna need a ROM, an emulator (https://www.zophar.net/snes/snes9x.html), a translation patch (https://forums.serenesforest.net/index.php?/topic/63676-fe4-translation-patch-open-beta-v7/#comments), and a patcher (https://www.marcrobledo.com/RomPatcher.js/). Theres different patches for different versions of the game, but the readme in the translation patch tells you which patch to use for your file.

Do you have a 3DS or PSP? I hacked mine and it’s really convenient to play old games on. There’s lots of homebrew tutorials on YouTube. For those games you need to put a translation patch on the rom (I usually use this website to patch stuff). Or sometimes you can find a rom that someone already patched. All this might sound complicated, but trust me it’s not. I barely know anything about computers and this kinda thing, but I figured this stuff out.

I usually get my patches from Romhacking.net, and they specify which ROM you'll need in the the ROM / ISO Information section in each page. For patching, I use Floating IPS. You just need the .ips patch and a copy of the right ROM. You could also use online patchers, like the one over at www.marcrobledo.com.

I then loaded the ISO.file with the latest patch 2.0.31 https://ffhacktics.com/smf/index.php?topic=12767.0 with the help of the following website https://www.marcrobledo.com/RomPatcher.js/

You need to patch it first with a clean emerald rom (Emerald.gba (Trashman)) . Using https://www.marcrobledo.com/RomPatcher.js/