Help with changing the STAB modifier in Pokémon Ruby.

[Superkonijn98]

Hoihoi

I have recently gotten into Romhacking and i wanted to change the STAB value from 1.5 to 1.25 or 1.3.
I don't know where, how and if i can change this in Pokémon Ruby.

Tnx for taking the time to read this.

kind regards
Superkonijn98

 

[Anon822]

Hoihoi

I have recently gotten into Romhacking and i wanted to change the STAB value from 1.5 to 1.25 or 1.3.
I don't know where, how and if i can change this in Pokémon Ruby.

Tnx for taking the time to read this.

kind regards
Superkonijn98

You can find the code for stab calculations here and here in pokeruby.

 

[Superkonijn98]

Thank you!

Abit of a stupid question but how do i need a program in particular to find this code in my ruby ROM?
I am currently using HexManiac.

 

[Anon822]

Thank you!

Abit of a stupid question but how do i need a program in particular to find this code in my ruby ROM?
I am currently using HexManiac.

You need to download and install the pokeruby decomp. After that you just edit the code files with a text editor and compile the project to get a new rom with your changes. This process called decomp hacking and you can build your entire hack this way.

If you want to stick with binary hacking (=editing a rom file) you can compare the rom you get from the decomp to a clean rom to see which bytes in the rom changed, and apply those same changes to the rom file you are working on, but this method is pretty limited and only really works for changing numbers.