Pmd2 item p.bin

The "/BALANCE/item_p.bin" file in Pokemon Mystery Dungeon Explorers of Sky/Time/Darkness contains data on every item in the game.

File Structure

Overview

Offset	Length	Type	Name	Description
0x00	16			SIR0 Header	A SIR0 header wrapping the item data.
0x10	(NbEntries * 16)			Item Data	A block containing entries for all items.
After Item Data	3			SIR0 Pointer Offset List	A list of encoded offsets to the pointers in the file. Since there are only the 2 pointers of the SIR0 header, those three bytes are always 0x04, 0x04, 0x00.
After SIR0 Pointer Offset List	13			Padding Bytes	Since all entries have a fixed size, and the SIR0 Pointer Offset List is 3 bytes long, 13 0xAA bytes are used as padding to align the end of the file on 16 bytes.

Item Data

The entries for each items are always 16 bytes long, and are organized this way:

Item Entry (Total length 16 bytes)

Offset	Length	Type	Name	Description
0x00	2	uint16	Buy Price	Price to pay for the item when purchased from a shop.
0x02	2	uint16	Sell Price	Price a shop will offer for the item.
0x04	1	uint8	Category	Used for sorting items, and possibly to determine the way the item works.
0x05	1	uint8	SpriteID	The sprite shown next to the item in the bag and on the ground.
0x06	2	uint16	ItemID	The ID by which the game refers to this item !
0x08	2	uint16	Item Parameter #1	See Item Parameter
0x0A	1	uint8	Item Parameter #2	Another parameter for items. Unknown role.
0x0B	1	uint8	Item Parameter #3	Another parameter for items. Unknown role.
0x0C	1	uint8	Unknown#1	Unknown.
0x0D	1	uint8	Unknown#2	Unknown.
0x0E	1	uint8	Unknown#3	Unknown.
0x0F	1	uint8	Unknown#4	Unknown, usually is 0.

Category

A list of the possible category value an item can have. This list is based on data compiled by nhahtdh into the item_p_sky.xlsx excel document, and then verified/confirmed on our end.(See links in the Credits section. )

ID	Category
0x0	Projectile
0x1	Arc
0x2	Seed & Drink
0x3	Food & Gummi
0x4	Hold item
0x5	TM & HM
0x6	Poké
0x7	N/A
0x8	Evo. + Misc.
0x9	Orb
0xA	Link Box
0xB	Used TM
0xC	Box 1
0xD	Box 2
0xE	Box 3
0xF	Specific Items

Item Parameter

There are 3 parameters slots available for each items, their use depends on the item type.

Parameter #1 (offset 0x08)

• If the item is an HM/TM, or an orb, this value is the move ID it refers to. Its also used the same way by some items, like orbs.
• Otherwise, with items of any other category, its role is unknown !

External Resources

• Wonder Mail S Tools, research notes. The "items_p_Sky.xlsx" excel sheet contains a comprehensive list of item names/types, pokemon names/types, moves names, etc, along with their associated index values in-game : [1]

Credits

• The WMS project, for their notes. [2]
• OgreGunner and nhahtdh for that huge thread on GameFaqs filled with tidbits of information! [3]