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Core IDsEdit

The monsters are enumerated from 0x0000 to 0x017E. As always these are little endian, so Yeti (0x0056) would be stored as 5600.

There are only 324 monsters, counting the empty entry for 0x0000, with some holes in the enumaration. Whenever a core id is used, either a lookup table is needed, or these ids need to be filled.

Not to be confused with the prebuilt enemy ids.

ROM MapEdit

The core monster data uses the full bank 0x35 (D4000-D4FFF)

First Byte Last Byte Data stored
D4000 D4000 0x35 bank code
D4001 D403A #Functions
D403B D433A #Pointers
D433B D7EB6

#Structures

D7EB7 D7FFF empty

FunctionsEdit

35:4001

ld    de,D008
ld    b,2F
call  401C
ret


35:400A

ld    de,D008
ld    b,01
call  401C
ret


35:4013

ld    de,D008
ld    b,02
call  401C
ret


35:401C

Parameters:

  • id in D006 and D007
  • address in de
  • length in b

gets the offset for id from the pointer table and writes length bytes from the monster data table to address.


Example: When accessing the info of a team memer in the menu its monster id is written to D006 and D007 the following code is executed: 21 01 40 06 35 D7

ld    hl,4001
ld    b,35
rst   10

PointersEdit

0x300 Byte lookup table: core ID -> 2 Byte offsets

StructuresEdit

47 Byte long structure * 324 monsters

1 byte Family
1 byte Gender ratio
1 byte Flying (LegSweep immune)
1 byte Metal
1 byte Species-specific join rate (see Recruitment)
1 byte ? (1 for flying monsters, 2 for Water family, 3 for Starfish)
1 byte Unbred max level
1 byte Experience growth
1 byte Skill 1
1 byte Skill 2
1 byte Skill 3
1 byte ?
1 byte HP growth
1 byte MP growth
1 byte Attack growth
1 byte Defense growth
1 byte Agility growth
1 byte Intelligence growth
27 bytes Resistances
2 bytes Base exp yield in random worlds

Note1: The two unknown bytes are not the critical rates, those are stored somewhere else (as they are in DWM1 as well) These unknown bytes may have something to do with how monsters are selected/created for random worlds, since they and the "base exp yield" are the only fields that don't exist in the corresponding monster species structure in DWM1.

Note2: The first structure starts with 0xFF. All pointers not pointing to a structure point to that. So technically all 'unused' monsters are 0x0. Code that uses the data may or may not check for this.

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