Decomp & Disassembly Tutorials & Resources
Pokemon Expansion
Started by DizzyEgg April 12th, 2019 2:59 AM- 17931 views
- 40 replies
About time, hmm?
Introduction
Decomps have been present for quite some time already, but one of the most possibly wanted features in a rom hack, that is pokemon expansion, was still nowhere to be seen(apart from Lunos' 493 base which sadly was done for an old version of pokeruby). I wish to change that, and present to you a game with over 800 pokemon in total. An expansion project featuring pokemon from all 7 generations, mega evolutions and forms. My aim is to put only whatever is necessary without any unrelated features, all put in one repository ready to use stand-alone or in conjunction with my battle engine.
General information
I'd like to go in detail over what exactly is in. There are several things that a project like this must cover, this includes pokemon sprites, base stats data, icons, cries, etc.
Screenshots
Gifs
Download:
The project is open-source and can be found here. All bugs and glitches are in the 'Issues' section. If you find one that's not there, please let me know so it can be quickly fixed!
https://github.com/rh-hideout/pokeemerald-expansion/tree/pokemon_expansion
Credits
Introduction
Decomps have been present for quite some time already, but one of the most possibly wanted features in a rom hack, that is pokemon expansion, was still nowhere to be seen(apart from Lunos' 493 base which sadly was done for an old version of pokeruby). I wish to change that, and present to you a game with over 800 pokemon in total. An expansion project featuring pokemon from all 7 generations, mega evolutions and forms. My aim is to put only whatever is necessary without any unrelated features, all put in one repository ready to use stand-alone or in conjunction with my battle engine.
General information
I'd like to go in detail over what exactly is in. There are several things that a project like this must cover, this includes pokemon sprites, base stats data, icons, cries, etc.
Spoiler:
Screenshots
Spoiler:
Gifs
Spoiler:
Download:
The project is open-source and can be found here. All bugs and glitches are in the 'Issues' section. If you find one that's not there, please let me know so it can be quickly fixed!
https://github.com/rh-hideout/pokeemerald-expansion/tree/pokemon_expansion
Credits
Spoiler:
Do you plan on decapping all names or it is out of scope of the project?
Do you plan on decapping all names or it is out of scope of the project?
Pokemon names, sure.
This looks alright, but I'm gonna wait until it gets better.
"The greatest obstacle in life is Yourself. Overcome it, and you will achieve the greatest accomplishment of all." -Art Beins, 1982
Pokémon Theta Emerald EX: https://www.pokecommunity.com/showthread.php?t=386240
Pokémon Theta Emerald EX: https://www.pokecommunity.com/showthread.php?t=386240
This looks alright, but I'm gonna wait until it gets better.
What specifically are you waiting for?
What specifically are you waiting for?
-Dex flags-TM/HM Compatibility
-Move Tutor Compatibility
-Cries
-Forms/Formes
-3rd/hidden ability
"The greatest obstacle in life is Yourself. Overcome it, and you will achieve the greatest accomplishment of all." -Art Beins, 1982
Pokémon Theta Emerald EX: https://www.pokecommunity.com/showthread.php?t=386240
Pokémon Theta Emerald EX: https://www.pokecommunity.com/showthread.php?t=386240
I'm excited for the ORAS styled dex.
The project sounds interesting, is there any "TODO" list for people that want to participate in the project/help implementing stuff?
My open source works: https://github.com/Almamu
Nuzlocke-enabled disassembly modification: https://github.com/Almamu/pokeruby_nuzlocke
Nuzlocke-enabled disassembly modification: https://github.com/Almamu/pokeruby_nuzlocke
The project sounds interesting, is there any "TODO" list for people that want to participate in the project/help implementing stuff?
Yeah, there is some stuff that hasn't been done.- Coordinates for form pokemon species
- Mon animations for gen5 mons, megas, forms and some of gen4 mons(one person been doing them, so its just gen5 I guess)
- Some sprites such as Turtwig have the second frame with a bit messed up palette, needs to be fixed
But it's mostly animations. Btw if you're thinking this must be super hard or anything like that, it's really not. It's basically finding the most appropriate animation function (reference) and assigning them for species here. Note the distinction between hex and dec tho.
The second part is duration of the changing frames, done here .
-Dex flags
-TM/HM Compatibility
-Move Tutor Compatibility
-Cries
-Forms/Formes
-3rd/hidden ability
Hijacking this comment to let everyone know, all of the above has been done. -TM/HM Compatibility
-Move Tutor Compatibility
-Cries
-Forms/Formes
-3rd/hidden ability
For details, see main post.
Hi, I'm new to ROM hacking, and started out with the decomp.
How does the evolution mechanic for Leafeon, Glaceon and Magnezone work in Gen3 under your implementation? Because to my knowledge, their respective evolution methods do not exist in Gen3, and how can we enable those in a Gen3 game?
How does the evolution mechanic for Leafeon, Glaceon and Magnezone work in Gen3 under your implementation? Because to my knowledge, their respective evolution methods do not exist in Gen3, and how can we enable those in a Gen3 game?
Hi, I'm new to ROM hacking, and started out with the decomp.
How does the evolution mechanic for Leafeon, Glaceon and Magnezone work in Gen3 under your implementation? Because to my knowledge, their respective evolution methods do not exist in Gen3, and how can we enable those in a Gen3 game?
Hi, the method for them is EVO_MAP, the param is the desired map's region section id. Leveling up the mon on the specified map will trigger the evo.
How does the evolution mechanic for Leafeon, Glaceon and Magnezone work in Gen3 under your implementation? Because to my knowledge, their respective evolution methods do not exist in Gen3, and how can we enable those in a Gen3 game?
Sorry to ask a dumb question, but how do you specify a map to enable evolution on those Pokemon? Is the param being mentioned the "62" next to EVO_MAP in evolution.h, or am I still missing something?
Yes, exactly this, just change 62 to the desired map's section id.
Hey, has anyone had any trouble with the in-game trades freezing after using this? The game locks up on the "take good care of _" screen. Not sure if I've broken something (seems likely) or if it's an issue with the expansion, so I thought it'd be better to ask here rather than open an issue on github.
EDIT: Never mind, I've done a few tests and can confirm this isn't caused by any of your repositories.
The only other issue I've run into is that a Grubbin caught in a Cherish Ball will crash the game when it's sent out, but that's easily fixed by assigning it a back sprite animation. I've only seen it happen with that specific combination so far, so no idea what's going on there.
Everything else is fantastic so far, great work Dizzy! Either there are very few bugs or they're all very hard to find.
EDIT: Never mind, I've done a few tests and can confirm this isn't caused by any of your repositories.
The only other issue I've run into is that a Grubbin caught in a Cherish Ball will crash the game when it's sent out, but that's easily fixed by assigning it a back sprite animation. I've only seen it happen with that specific combination so far, so no idea what's going on there.
Everything else is fantastic so far, great work Dizzy! Either there are very few bugs or they're all very hard to find.
My Hacks:
XY: Eternal X & Wilting Y | USUM: Photonic Sun & Prismatic Moon
Resources:
Gen IV move editor (Nightmare module) | Platinum decapitalisation patch/files | Updated SDSME
XY: Eternal X & Wilting Y | USUM: Photonic Sun & Prismatic Moon
Resources:
Gen IV move editor (Nightmare module) | Platinum decapitalisation patch/files | Updated SDSME
How can i asign the hidden abilities, them are coded in base stats, but how can i make a pokemon o have him?
As you saw, Hidden Abilities are already implemented, and adding one to a pokémon should be self-explanatory. You just add the relevant field to your pokémon's data inside the base_stats.h file between the line that handles your pokémon's regular abilities and their body color, and... that's it really.I doubt that's what you asked, so please do rephrase your question if I got it wrong.
EDIT: And naturally, I did misunderstand. What mrlance asked here (he chatted with me on Discord a little bit), is how can he assign a Hidden Ability to a wild pokémon or a gifted pokémon.
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How can i asign the hidden abilities, them are coded in base stats, but how can i make a pokemon o have him?
I can answer this,src/pokemon.c, line 2495, in function CreateBoxMon:
if (gBaseStats[species].abilities[1])
{
value = personality & 1;
SetBoxMonData(boxMon, MON_DATA_ABILITY_NUM, &value);
}
I actually did it by assigned a flag check, works for both wild and gift.
Edit: Well I shall mention u also need to modify GetAbilityBySpecies function to determine the abilityNum bit.
Another thing is that 1 extra abilityNum bit will break the present save structure.
What I did is to tweak the GetAbilityBySpecies function to read AbilityNum as hidden ability mark, while using PID to determine normal ability bit, or u can actually make the save structure using that 1 extra bit?
I added that extra bit and this changes
if (gBaseStats[species].abilities[1] ||gBaseStats[species].abilityHidden )
{
if ((Random() % 10) == 0)
value = 2;
else
value = personality & 1;
SetBoxMonData(boxMon, MON_DATA_ABILITY_NUM, &value);
}
In GetAbilityBySpecies
if (abilityNum == 2)
gLastUsedAbility = gBaseStats[species].abilityHidden;
else if (abilityNum == 1)
gLastUsedAbility = gBaseStats[species].abilities[1];
if (gLastUsedAbility == 0)
gLastUsedAbility = gBaseStats[species].abilities[0];
Thanx for your help
if (gBaseStats[species].abilities[1] ||gBaseStats[species].abilityHidden )
{
if ((Random() % 10) == 0)
value = 2;
else
value = personality & 1;
SetBoxMonData(boxMon, MON_DATA_ABILITY_NUM, &value);
}
In GetAbilityBySpecies
if (abilityNum == 2)
gLastUsedAbility = gBaseStats[species].abilityHidden;
else if (abilityNum == 1)
gLastUsedAbility = gBaseStats[species].abilities[1];
if (gLastUsedAbility == 0)
gLastUsedAbility = gBaseStats[species].abilities[0];
Thanx for your help
Small update since many people asked me about this earlier. Hidden abilities are added in without the need of rewriting the structs, I dealt with that. Here's info from the updated main post:
hidden abilities are functionally added, however they cannot be normally found on wild or trainer pokemon. In other words, it's up to the user to create ways of encountering them. For a mon to have a hidden ability, simply set MON_DATA_ABILITY_NUM to 2.
If you're curious, I removed isEgg field from battle pokemon(since eggs cannot participate in battles) and changed fatefulEncounter field from 4 bits to 2(by the way, I have not found a single instance of setting this field in the game, tbh I don't even know if this is fatefulEncounter since obedience fills that role in gen3).
Are the Alolan forms outside the scope of this project? I didn't see them referenced in the data, unless I was looking at the wrong files. Same for Meltan/Melmetal but he's forgettable.
They are for now. Don't really feel like adding all the data for them, but may include them if someone helps with that.
I might be able to help you with that in the near future (just not right now). I have been giving thought about maybe extending them at my local repo (as seperate entities and not forms).
Edit: Lunos did it much faster and probably better than I could.
Edit: Lunos did it much faster and probably better than I could.
Emerald master race
I might be able to help you with that in the near future (just not right now). I have been giving thought about maybe extending them at my local repo (as seperate entities and not forms).
Sure, would appreciate it. You can send a pull request with your changes later.