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Decomp & Disassembly Tutorials icon

Decomp & Disassembly Tutorials

Get your start with tutorials and code snippets for your decompilation-based hacks including pokered, pokecrystal and pokeemerald.

Section Staff: Hiroshi Sotomura, Bloodless, 8-bit Zeta, Astrophel

Promoted

Bring Emerald to modern-day standards — Battle Engine Upgrade

Thread created February 4th, 2019

170

Promoted

Featured: Quest Menu

Thread created May 3rd, 2020

Promoted

Featured: Follow Me NPC code

Thread created March 18th, 2020

Promoted

PoryMap - map editor for Pokémon GBA decompilations

Thread created April 4th, 2018

Simple Modifications Directory

(16 pages)

kassius_kan, Aug 9: Sorry my dear, but the Git Pull of your nature_mints repository is giving error when using pokeemerald-expansion

399 161,788

Started by Avara

PoryMap | Map Editor for the Disassembly and Decompilation Projects

(4 pages)

AlmightyK, Jun 27: Thanks for that, it has solved my problem. (Without comprehensive testing mind you, but a temporary fix is something)

90 34,652

Started by Lunos

Pokeemerald

Battle Engine Upgrade

(7 pages)

Tauric, May 3: I am not. I was testing if infinite TMs/replacable HMs were implemented when i noticed that i couldn't teach HMs to anything. I saw that. That's pretty far above my understanding though, so i just figured out a workaround that should work for...

170 71,667

Started by DizzyEgg

Poryscript | Scripting Language for the Decompilation Projects

ShantyTown, Feb 2021: What is Poryscript? Poryscript is an improved scripting language that can be used with pokeemerald, pokeruby, and pokefirered. It provides higher-level control with "if" statements, inline text, and much more. It's used by prominent projects...

0 5,778

Started by ShantyTown

Rules

Decomp & Disassembly Tutorials & Resources Forum Rules

Avara, Aug 2020: *Decomp & Disassembly Tutorials & Resources Forum Rules* Forum Rules This forum is bound by rules set in the global PokéCommunity Rules To make sure that things remain civil, and to make sure that everyone has an enjoyable time, we ask that, along...

0 4,040

Started by Avara

[Tutorial] How to build the Pokémon GBA decomps using WSL (Win10)

(4 pages)

AlmightyK, Aug 9: I can't think of specific ones but I pulled it over a year ago. Oh well, time to dive in and try.

93 27,261

Started by Lunos

Decomp from scratch! Compiling our first ROM and configuring VSCode

Trainer_Red151, Aug 7: Thank you for this tutorial! I was able to get my decomp environment up and running. Just wanted to express my gratitude!

3 4,410

Started by Jaizu

Pokeemerald

Unbound Quest Menu

PSF, Aug 7: Aaand 1.1.1 is out. There was a rebase on the last set of commits that did not go as intended, and this wasn't noticed until several hours later. This will, unfortunately, mess up the history of the people that pulled in the 11-hour window. My...

4 390

Started by PSF

Pokeemerald

Editing Battle Backgrounds

MariaJumpMan!, Aug 6: Do you already tried use make clean on your terminal...?

11 7,755

Started by Avara

[Win 10] How to setup decompilation with no effort

(2 pages)

Lunos, Aug 2: There aren't alternatives to this one, no. You either follow its .sh script, or follow the process to clone and build Pokeemerald manually.

36 8,607

Started by Inmortal

Pokeemerald

How to start a project using DizzyEgg's works

(8 pages)

Lunos, Jul 28: Ladies and gentlemen, it's done. The tutorial has been updated, and so was the gist. See you in 6 months https://media.discordapp.net/attachments/920910433483890708/1002235503724204072/kappa.png

191 41,625

Started by Lunos

Boss Battle Balancing

WiserVisor, Jul 23: I just made a few changes to the Pokémon Count and Item Balancing sections. You no longer need to have the Empty variable in the SaveBlock1 struct, and I added a macro to simplify the process of taking a player's items and giving the player the same...

13 2,580

Started by WiserVisor

Pokeemerald

Sideways Stairs

(2 pages)

Greenphx, Jul 23: I've ported this to Pokefirered, if anyone needs it: https://github.com/Greenphx9/pokefirered/tree/sideways-stairs You can use this tileset for the sideways stairs tiles (borrowed from the one in this post): https://i.imgur.com/gkLdp4o.png

27 7,781

Started by ghoulslash

Pokeemerald

Following Pokémon

(3 pages)

Triplehelix, Jul 22: I found a pretty weird bug. When you jump over a ledge and land in tall grass, you will get an encounter 100% of the time as soon as you take a step. I tested it on the unmodified FollowerGen1-3 branch.

51 8,420

Started by WiserVisor

Pokeemerald

Wild Pokémon Drop Held Items

AlmightyK, Jul 14: I was also getting the "helditems" error, so the likely cause is that the master has been updated beyond what Anercomp and I have. I haven't updated because I am worried about changes I have made becoming incompatible (I am new to Git based work)

5 762

Started by Agustin23

Pokered

Basic Pokered/Pokeyellow info and tutorial links

longlostsoldier, Jun 18: I've updated the tutorial, and I just wanted to say also that if someone has something they want me to add to it I am happy to take suggestions. Also, please feel free to take absolutely any code/assets whatsoever you want from my github. It's...

3 1,524

Started by longlostsoldier

Pokeemerald

DexNav (with Detector Mode!)

(2 pages)

laser_dolphin, Jun 12: Could you please post the answer here as well as it is valuable information. I'd also like to know how it is calculated. EDIT: Answered on the discord! Thanks. In the struct SaveBlock1 you got u8 dexNavSearchLevels; which means that for each...

30 11,038

Started by ghoulslash

[Tutorial] How to build Pokeruby/Pokeemerald using devkitPro's MSys2

(2 pages)

Lunos, May 30: Reply: https://www.pokecommunity.com/showthread.php?p=10510017#post10510017

41 22,218

Started by Lunos

Pokeemerald

Customising e-Reader Cards

paccy, May 23: It's definitely possible to change the pokemon in altering cave since that depends on a single var value. The "official" event (none were actually released for this) goes through Mystery Gift but these cards work through Mystery Event. I don't know...

18 4,833

Started by paccy

Pokeemerald

Decomp Trainer Editor

(2 pages)

datoneguy, May 18: I’m curious if anyone else is running into this as well. The editor boots fine (v1.2.3) and runs perfectly for like one or two trainers. By the time I click to a third or fourth trainer, it acts odd. I can still edit the previous trainer and scroll...

28 11,236

Started by Disturbo

Pokeemerald

RoamersPlus: multiple concurrent Roamers and other Roamer related features

DarkDown, Apr 28: Github branch: https://github.com/Sneed69/pokeemerald/tree/RoamersPlus IMPORTANT: If using the RHH expansion, my changes to src/battle_ai_script_commands.c instead go into src/battle_ai_main.c As most of you already know, in Pokemon Emerald,...

0 624

Started by DarkDown

Pokeemerald

Battle Timer System (Legends: Arceus Inspired)

marios92, Apr 25: Well, Quick attack (and alike moves) in LA increase user Speed +1 for 5 turns (like Reflect or Light Screen). For 3 or 8 turns if using Agile or Strong Style, but i think you aint looking forward for Style implementation, right? Anyway the standard...

3 763

Started by WiserVisor

Pokeemerald

PokedexPlus in HGSS style UPDATED

(2 pages)

Ammy175, Apr 24: Hi there. I'm also new to decomp, and I'm trying to implement this using the RHH as well. I followed the instructions in the first post to the best of my ability, and got some merge conflicts. A friend helped me out through those, but now when...

39 12,258

Started by TheXaman

[TUTORIAL] Adding new map sections for name popups and region map

Jaykopp, Apr 9: Thanks, this was great! I was wondering, how does one change the mapgroup of a new map?

2 4,015

Started by Samug

Pokeemerald

Follow Me

(2 pages)

retrogba, Apr 8: Was anyone ever able to address some of these, like followers disappearing after using fly? I haven't had much success trying to create my own workaround.

38 12,743

Started by ghoulslash

Pokeemerald

Unique surfing overworlds

(2 pages)

retrogba, Mar 31: So I've implemented this with some updates to allow it to work on more recent builds of pokeemerald, but it seems the surfing pokemon is always the first slot from the party. Is this intended/known, or did I break something?

31 13,993

Started by slawter666

Pokeemerald

How To Add, Edit, And Understand Music in Pokeemerald

(2 pages)

WiserVisor, Mar 26: Thanks for pointing that out! I'll add that information to that section.

30 8,255

Started by WiserVisor

Pokeemerald

Let Enemy Trainers Use Revival Items Correctly

WiserVisor, Mar 10: Based on those pictures, you certainly did everything correctly. Like I said with Jessler, I've tested this code with a clean pokeemerald repository, and it works as described. The only way I could help you more is if I poked around your repository,...

11 1,870

Started by WiserVisor

Pokeemerald

Ghoul's Expansion Branch

ghoulslash, Feb 20: It's tough to help with conflicts on pokecommunity, particularly this many - I suggest going to discord to help with individual ones that are especially tricky. Which scripts? you can find the IDs for new script commands in...

4 2,543

Started by ghoulslash

Pokeemerald

Animated RHH x Pret - Copyright intro

Diego Mertens, Feb 18: For me, that makes Porygon being on top of the pret logo instead of below And its weird, because it jumps just fine, but the point where it starts jumping is the issue

3 2,334

Started by Jaizu

Pokeemerald

Inserting Custom Sprites

plzhalp, Feb 13: That's what I suspected but I was unsure of how to troubleshoot effectively. Thank you!!

16 14,926

Started by Avara

Pokeemerald

Ruins of Alph Sliding Puzzles [+ pokefirered]

Jaizu, Feb 7: Hi, I went ahead and ported it to Pokefirered, you can add it to the main post if you want. Github link: https://github.com/Jaizu/pokefirered/tree/sliding_puzzles Some notes: It disables the help system when solving puzzles since you need L/R...

5 1,337

Started by Spherical Ice

Pokeemerald

Fully Decapitalized Pokefirered and Pokeemerald

Lunos, Jan 27: You need to link your GitHub account to your terminal in order to git pull. In other words, as the terminal tells you, you need to use git config --global user.email insert_your_email_here and git config --global user.name insert_your_username_here.

6 3,090

Started by Prof. Leon Dias

Pokeemerald

Battle Transitions Guide

tldr_coder, Jan 17: Thank you Lunos! Will search for that function when I get home. Btw, your set up guide for getting up and running with decomps was pivotal to get me started, and the "How to start a project using DizzyEgg's works" guide helped a ton as well......

9 5,197

Started by Avara

[TUTORIAL] Set Trainer's Pokémon's Levels dynamically

Lunos, Jan 12: I'll proceed to quote my post from another thread: Note: Naturally, in this case, you'll want to put the declaration in src/battle_main.c because that's where you're invoking gEvolutionTable here.

15 8,042

Started by Diego Mertens

Pokecrystal

[Tutorial] How to build Pokered or Pokecrystal using WSL

Lunos, Dec 24: Explained as simply as possible and straight to the point. You guys know me. The reason why I'm writing this is because I learned how to build rgbds from the source sometime ago and I never wrote a tutorial about that. Cygwin is lame compared to...

0 859

Started by Lunos

Pokeemerald

Remove having to reel in while Fishing

astupidnerd, Dec 9: I'm a bit late to the party, but to get this working with pokemon ruby, Fishing_ShowDots is Fishing5 and Fishing_GotBite is Fishing7. Aside from this, you also have to use Menu_PrintText instead of AddTextPrinterParameterized, so Fishing5 will...

5 2,117

Started by NobodySociety

Pokeemerald

Costume Menu

TrainerX493, Nov 30: Here's another "Overworld Expansion" branch here that is probably better (link showing the changes rather than just the branch itself): https://github.com/ghoulslash/pokeemerald/compare/master...ghoulslash:overworld-expansion The author of the...

15 11,239

Started by slawter666

Pokecrystal

[Tool] Polished Map 4.7.1 and 2.7.1++: a pokecrystal and pokered map editor

Lunos, Nov 22: Naturally, the program loads files, so yes, you can load your file, assuming you're not talking about a ROM file. Polished Map opens disassembly related files, so to open one of Pokémon Red's maps, you must choose the .blk file of said map, located...

16 22,524

Started by Rangi

Create a debug menu

Rappe, Nov 20: Is there a way to implement this for pokefirered? I imported all of the code to the same files and was able to get it to compile after some tweaking, but the debug menu won't open. The start menu just opens like normal.

9 5,987

Started by ThomasWinwood

[Tutorial] How to build Pokeruby/Pokeemerald using Cygwin (64 Bits)

(2 pages)

Lunos, Nov 19: I no longer consider Cygwin as a viable option to build the decomps. devkitPro has been broken for about a year on my end, so I can no longer recommend it, or anything that requires using it, such as the process to build the decomps. Windows 7 or...

29 12,903

Started by Lunos

Pokeemerald

FR styled Hoenn (kinda!)

Mattow, Nov 13: As a fan of FR/LG's style but Emerald having most of decomp docs and features, i love this

3 2,623

Started by Jaizu

Pokeemerald

[TUTORIAL] Adding New Weather

Sonikku A, Oct 30: Ever grown tired of the same few weather effects? Wish some from Mystery Dungeon were implemented? Feeling devilish to bring back Gen 4 fog? Fortunately I've managed to figure how to add more weathers for battle effects. Special thanks to...

0 1,270

Started by Sonikku A

Pokeemerald

Guide to Editing the Region Map

Mahian23, Oct 28: Woah a map of Bangladesh!!!! Truly gorgeous.

6 3,244

Started by takyon

[Tool] DST - Install decomp with no effort

DarkMadman_69, Oct 27: Thank you for such an amazing tool. This tool just saved me from having to start over on my project

4 3,447

Started by Inmortal

Pokeemerald

[RESOURCE] NDS Music Expansion for Pokeemerald

CyanSMP64, Oct 25: Just updated the branches. There had been crash reports from players of Inclement Emerald, and it turns out I missed an important part of the upgraded mixer implementation so now there shouldn't be any crashes. Also added a new selection branch...

10 2,812

Started by CyanSMP64

Pokemon Emerald 80x80 Sprites

TrainerX493, Oct 13: Something I'm hoping to see from this is to have the this being toggable via a script. So you can use normal sprites for 99% of the game (so double battles and such aren't affected), but then have the 80x80 sprite for special boss battles. My...

7 4,501

Started by FroggestSpirit

Pokeemerald

Tutorial : How to implement X/Y Sky Battles

Martinii93, Sep 18: Hello Phlayne, I've been trying to use this tutorial but I'm running into two errors. I'm using one of the most recent rh-hideout pokeemerald builds . I get these errors: Battle_script_commands:

1 1,671

Started by Phlayne

Pokeemerald

"User Manual" for DizzyEggg's battle_engine_v2, pokemon_expansion, and item_expansion

Lunos, Sep 15: There's a feature that isn't documented anywhere else. May as well drop some info about it here. Trainer Slide-in Messages This feature originally introduced in Pokémon Platinum is present in the battle_engine branch. There's an array called...

1 6,855

Started by Ryuhouji

[FireRed] How To Edit The Intro Sprites

hjk321, Sep 5: In Emerald, the Intro Sprites are actually rather easy to edit. However, in FireRed, the process is much more involved, mostly because the sprites in question are not actually sprites, but considered part of the background. This causes some pros and...

0 932

Started by hjk321

Using Affine Animations

Anon822, Aug 30: Thank you for writing this guide. I recently looked into affine animations for the first time and this helped me to understand how they work. However, I think that the FRAME command could be explained in a simpler way and that the other commands...

1 4,170

Started by Inmortal

PokeFireRed how to easily add new types (Fairy)

Meister_anon~Master_o f_None, Aug 24: SmashLucario Yeah what Lunos said sounds right, I never looked into that but, I just want to add that while that is the physical/code limit, ( unless expanded -which isn't necessary) Someone adding a bunch of types may run into a more practical...

7 2,273

Started by Meister_anon~Master_o f_None

Pokeemerald

Fully editing an existing battle background

sickanddullandplain, Aug 15: It turns out - you can!

3 1,926

Started by Lunos

Pokeemerald

Scripting Tutorial

(3 pages)

Terrine, Aug 2021: Oh right, I didn't think of checking the map of the inside of the truck ! Thank you very much !

61 33,368

Started by Avara

Pokeemerald

Custom Music/Sound Effect Database

hjk321, Jul 2021: Interesting! Might give some of these a go.

3 1,894

Started by WiserVisor

Forum Tools	Search this Forum
Mark This Forum Read View Parent Forum

Categories

Bring Emerald to modern-day standards — Battle Engine Upgrade

Featured: Quest Menu

Featured: Follow Me NPC code

PoryMap - map editor for Pokémon GBA decompilations

Simple Modifications Directory

PoryMap | Map Editor for the Disassembly and Decompilation Projects

Battle Engine Upgrade

Poryscript | Scripting Language for the Decompilation Projects

Decomp & Disassembly Tutorials & Resources Forum Rules

[Tutorial] How to build the Pokémon GBA decomps using WSL (Win10)

Decomp from scratch! Compiling our first ROM and configuring VSCode

Unbound Quest Menu

Editing Battle Backgrounds

[Win 10] How to setup decompilation with no effort

How to start a project using DizzyEgg's works

Boss Battle Balancing

Sideways Stairs

Following Pokémon

Wild Pokémon Drop Held Items

Basic Pokered/Pokeyellow info and tutorial links

DexNav (with Detector Mode!)

[Tutorial] How to build Pokeruby/Pokeemerald using devkitPro's MSys2

Customising e-Reader Cards

Decomp Trainer Editor

RoamersPlus: multiple concurrent Roamers and other Roamer related features

Battle Timer System (Legends: Arceus Inspired)

PokedexPlus in HGSS style UPDATED

[TUTORIAL] Adding new map sections for name popups and region map

Follow Me

Unique surfing overworlds

How To Add, Edit, And Understand Music in Pokeemerald

Let Enemy Trainers Use Revival Items Correctly

Ghoul's Expansion Branch

Animated RHH x Pret - Copyright intro

Inserting Custom Sprites

Ruins of Alph Sliding Puzzles [+ pokefirered]

Fully Decapitalized Pokefirered and Pokeemerald

Battle Transitions Guide

[TUTORIAL] Set Trainer's Pokémon's Levels dynamically

[Tutorial] How to build Pokered or Pokecrystal using WSL

Remove having to reel in while Fishing

Costume Menu

[Tool] Polished Map 4.7.1 and 2.7.1++: a pokecrystal and pokered map editor

Create a debug menu

[Tutorial] How to build Pokeruby/Pokeemerald using Cygwin (64 Bits)

FR styled Hoenn (kinda!)

[TUTORIAL] Adding New Weather

Guide to Editing the Region Map

[Tool] DST - Install decomp with no effort

[RESOURCE] NDS Music Expansion for Pokeemerald

Pokemon Emerald 80x80 Sprites

Tutorial : How to implement X/Y Sky Battles

"User Manual" for DizzyEggg's battle_engine_v2, pokemon_expansion, and item_expansion

[FireRed] How To Edit The Intro Sprites

Using Affine Animations

PokeFireRed how to easily add new types (Fairy)

Fully editing an existing battle background

Scripting Tutorial

Custom Music/Sound Effect Database