FF7/Battle/Battle Mechanics

This page will be for Battle memory structures. May be pretty unstructured for a while.

Command Defaults

Each command type has default execution values that can, in some cases, be overridden.

Offset	Default
0h	Animation
1h	Damage Calculation
2h	Command Properties

Queued Actions

When a command is selected either by a player character or an enemy the action gets queued in a FIFO structure while there are actions queued or one is being performed. Up to 64 actions can be queued.

Offset	Value
0	Command Index
1	Command's Actor
2	Priority (4 - ??; 3 - Auto commands (Added Cut, Poison, Death Sentence, etc); 2 - Normal; 1 - ??; 0 - Counters and Limit Breaks)
3	AI-related function parameter
4	Target Mask
6	Action Index

AI Structure

There is a single block of memory that holds AI information on the current running script. Each Actor "owns" this while their scripts are executing.

Offset	Function
0h	Actor Index
4h	Script Position
8h	Remaining Stack Space (initially 200h)
0Ch	Current AI OpCode
10h	OpCode Lower Nybble
14h	OpCode Upper Nybble
18h	First Group Type
1Ch	Second Group Type
20h	OpCode Lower Nybble (related to group 1?)
24h	OpCode Lower Nybble (related to group 2?)
28h	Mask of non-null values in Group 1
2Ah	Mask of non-null values in Group 2
2Ch - 50h	Group 1 of variables
54h - 78h	Group 2 of variables
7Ch - 27Ch	Stack of values

Active Character Data

This is an array that each playable character maintains an instance of. (These addresses are off)

Offset	Value
000h	Character ID
001h	Cover Chance
002h	Strength
003h	Vitality
004h	Magic
005h	Spirit
006h	Speed
007h	Luck
008h	Phys Attack
00Ah	Phys Def
00Ch	Mag Attack
00Eh	Mag Def
010h	Current HP
012h	Max HP
014h	Current MP
016h	Max MP
018h	Timer
01Ah	Counter Attack Action Index
01Ch	Counter Attack Chance
021h	Some sort of divisor
022h	Character Flags (Underwater, Long Range, HP<->MP, etc)
023h	Eight entries of three bytes...
03Ch	Attacking Elements
03Eh	Halved Elements
040h	Nullified Elements
042h	Absorbed Elements
044h	Attacking Elements
046h	Self Mask as a DWord
04Ah	Immune Statuses
04Eh	Enabled Command Menu (16 entries of 6 bytes)
0ACh	Limit Actions for current Limit Level
0B8h	Enabled Limit Data (three entries in Attack Data format)
10Ch	Enabled Magics (54 entries of 8 bytes)
0	Magic Index
1h	MP Cost
2h	All Count
3h	Quad Enabled?
4h	Quad Count?
5h	Target Data
6h	Properties
2CCh	Enabled Summons (format like above)
32Ch	Enabled ESkills (format like above)
40Ch	First 11 bytes of Weapon Data
41Ch	Elements added to Attacking Elements above
420h	Four sets of two DWords : (Stat to increase, Increase value)
43Ch	Gil Bonus granted by this character
43Dh	Encounter rate ""
43Eh	Chocobo Chance ""
43Fh	PreEmptive Chance ""