FF7/Battle and growth data

Kernel.bin section 3

This file contains a bunch of information about character growth and battles. Table below explains it all (credits go to Terence F. for this).

General data layout

Table 1: Section 3 of kernel.bin description

Offset	Length	Description
0x0000	56 bytes	Character data: Cloud (see below)
0x0038	56 bytes	Character data: Barret
0x0070	56 bytes	Character data: Tifa
0x00A8	56 bytes	Character data: Aeris
0x00E0	56 bytes	Character data: Red XIII
0x0118	56 bytes	Character data: Yuffie
0x0150	56 bytes	Character data: Cait Sith
0x0188	56 bytes	Character data: Vincent
0x01C0	56 bytes	Character data: Cid
0x01F8	12 x 1 byte	Random bonus to primary stats
0x0204	12 x 1 byte	Random bonus % to HP
0x0210	12 x 1 byte	Random bonus % to MP
0x021C	37 x 16 bytes	Primary stat curve 0 - 36 (see below)
0x046C	9 x 16 bytes	HP stat curve 37 - 45 (Base * 40)
0x04FC	9 x 16 bytes	MP stat curve 46 - 54 (Base * 2)
0x058C	9 x 16 bytes	EXP stat curve 55 - 63 (Gradient is quadratic, no Base)
0x61C	1508 bytes	Character AI data (see below)
0xC00	540 bytes	FF padding
0xE1C	256 bytes	Random number look-up table (all numbers from 0-256 are here)
0xF1C	64 bytes	Scene.bin look-up table (see below)
0xF5C	56 bytes	Spell order from Magic menu in battles

Character data record

- Placeholder -

Stat curve record

- Placeholder -

Character AI data

- Placeholder -

Scene.bin Look-up file

As you may know, scene.bin file is divided into banks or sections. There are 33 total sections, and each one is 8192 long. Each section contains 5 - 20 files, based on their length. If archive is modified and one of the files is bigger than before, it must be put in the next section, which'll probably cause last file in this section to be put in next one, etc. This look-up table contains data about how many files are in each section. It begins like this:

00 0C 12 19 21 27 2D ...

Which means:

Section 1 contains 0x0C - 0x00 = 12 files
Section 2 contains 0x12 - 0x0C = 6 files
Section 3 contains 0x19 - 0x12 = 7 files
... and so on.

Everytime you modify scene.bin file, you must also keep this table updated, or you'll end with VERY random encounters (wrong battles in wrong places).