ROM Hack Question How to use pkNX for wild encounters on Let's Go Eevee?

[OmegaPikachu]

So with pkNX according to this tweet: Failed to fetch tweet https://twitter.com/mattyoukhana_/status/1067211858610860033

you can randomize wild encounters, But I have no clue how to do it lol. When you click the wild encounters button on pkNX it just opens a window to browse for a .json file

Does anyone know how to do this? Its new enough that theres no tutorials or info on google lol

 

[h448]

You presumably have to figure out which .bin file in romfs holds the wild encounter code, convert this to json, edit it with pkNX and then figure out how to convert it back to .bin. It would be nice to have some sort of tutorial, or at the very least which .bin it is. My guess is poke_appearance_list.bin

 

[Stoned]

You presumably have to figure out which .bin file in romfs holds the wild encounter code, convert this to json, edit it with pkNX and then figure out how to convert it back to .bin. It would be nice to have some sort of tutorial, or at the very least which .bin it is. My guess is poke_appearance_list.bin

No it´s encount_data_e.bin and encount_data_p.bin

 

[h448]

No it´s encount_data_e.bin and encount_data_p.bin

Thank you How would you go about converting the .bin to a .json file to be edited?

 

[phonz]

Thank you How would you go about converting the .bin to a .json file to be edited?

sounds like it something that tool does for you. Best to find a readme for it.
I've never heard of pkNX myself. Unless it's an offshoot of pkHex?

EDIT: Weird, they have a github for it but they don't post their builds there. That twitter account does have links to current builds though.

 

[Akei]

I tried myself but can't manage to open any files with the program
I always have
"Invalid file loaded. Unable to recognize data : $pkNX.WinForms.FileRipper+RipResult."

So even If I try to open encount_data.bin I got the message

 

[OmegaPikachu]

Seems we've almost figured it out lol

 

[sora10pls]

I’m the one who made that Tweet. You need to have a dump of your game already made to load into pkNX (RomFS should be 27,818 total files). Once you open that dump, you use the bin2json batch file to get your encounter data’s JSON, and then open that generated JSON with the wilds editor. After making your changes, save the newly generated JSON into that folder with the flatbuffer schema tools, and then run json2bin; that newly generated binary is your randomized encounters.

 

[OmegaPikachu]

I’m the one who made that Tweet. You need to have a dump of your game already made to load into pkNX (RomFS should be 27,818 total files). Once you open that dump, you use the bin2json batch file to get your encounter data’s JSON, and then open that generated JSON with the wilds editor. After making your changes, save the newly generated JSON into that folder with the flatbuffer schema tools, and then run json2bin; that newly generated binary is your randomized encounters.

Oh alright. There isnt a batch file in the release or am I just not seeing it? just DLL files and such.

 

[sora10pls]

Oh alright. There isnt a batch file in the release or am I just not seeing it? just DLL files and such.

Download the source code from GitHub, use the folder "FlatBuffers" located in /pkNX.Structures/Encounter/.

Failed to fetch tweet https://twitter.com/mattyoukhana_/status/1067473083215208448

 

[OmegaPikachu]

Download the source code from GitHub, use the folder "FlatBuffers" located in /pkNX.Structures/Encounter/.

https://twitter.com/mattyoukhana_/status/1067473083215208448

Awesome. Thanks so much for the tutorial

 

[AKANE11]

Does anyone know what is the best homebrew app to use to dump lets go pikachu in order to use PkNx?

 

[h448]

Does anyone know what is the best homebrew app to use to dump lets go pikachu in order to use PkNx?

I don't believe there's an app on the switch itself to do it, you'll have to use hactool (or hacgui if you want to make it easier on you) to dump the romfs and exefs, and of course the .nsp file you have from your Switch.

 

[Rikoru]

Can someone give me a brief tutorial on how I get to the json part? I have extracted an nsp using hactoolGUI to produce a .nca file, I have then extracted that .nca using the same tool. This has produced the files in the screenshot. Where do I go from here?

 

[h448]

Can someone give me a brief tutorial on how I get to the json part? I have extracted an nsp using hactoolGUI to produce a .nca file, I have then extracted that .nca using the same tool. This has produced the files in the screenshot. Where do I go from here?

So, it looks like you successfully extracted the exefs, but the romfs seems to be in that big "game.istorage" file, which isn't right. I am not 100% sure how this process went south, do you have all the correct keys when extracting? (Including the Titlekey?)

 

[Rikoru]

So, it looks like you successfully extracted the exefs, but the romfs seems to be in that big "game.istorage" file, which isn't right. I am not 100% sure how this process went south, do you have all the correct keys when extracting? (Including the Titlekey?)

Yes or at least I assumed I did

 

[Arc_Ray99]

is this topic still live? ive been wanting to do this recently but there seems to be very important info missing for how to do this.
i keep seeing "you just need a dump of the games files and load them up into pkNX", so i have a dump and i put it in and its giving me an error.
it just says they are invalid files, but i find WHAT files it needs. all i see is that i need to have what i already have.

 

[Stoned]

is this topic still live? ive been wanting to do this recently but there seems to be very important info missing for how to do this.
i keep seeing "you just need a dump of the games files and load them up into pkNX", so i have a dump and i put it in and its giving me an error.
it just says they are invalid files, but i find WHAT files it needs. all i see is that i need to have what i already have.

You have to unpack your dump to a RomFS and a ExeFS Folder.

 

[Arc_Ray99]

You have to unpack your dump to a RomFS and a ExeFS Folder.

they are in a RomFS folder, but i have yet to see this ExeFS folder mentioned before. what exactly is that? or do i just need to make a folder called that and put it all in there? that seems too easy...

 

[AKANE11]

they are in a RomFS folder, but i have yet to see this ExeFS folder mentioned before. what exactly is that? or do i just need to make a folder called that and put it all in there? that seems too easy...

Are you using hactool to extract the xci?