SAVW (File Format)

The SAVW format determines what data gets saved to the memory card. It's used to save information on non-hardcoded parts of the game, like whether a particular MemoryRelay has been activated, whether you've scanned a particular scan has been fully scanned, etc.

Format

Type	Count	Name	Notes	MP1	MP2
u32	1	Magic	Always 0xC001D00D	✔	✔
u32	1	Version	See below for a list of possible version numbers.	✔	✔
u32	1	Area Count	Number of areas contained in this world.	✔	✔
u32	1	Cinematic Skip Count	Count of Cinematic Skip SpecialFunction instances.	✔	✔
u32	Cinematic Skip Count	Cinematic Skip Instance IDs	Array of instance IDs listing every Cinematic Skip SpecialFunction instance in the world.	✔	✔
u32	1	MemoryRelay Count	Count of MemoryRelay instances.	✔	✔
u32	MemoryRelay Count	MemoryRelay Instance IDs	Array of instance IDs listing every MemoryRelay instance in the world.	✔	✔
u32	1	Toggleable Layer Count	Count of layers that can be toggled on/off from this world.	✔	✔
Toggleable Layer	1	Toggleable Layer Array	Array specifying every layer that can be toggled on/off from this world (any layer referenced by a ScriptLayerController). The layers specified can be in other worlds.	✔	✔
u32	1	DoorArea Count	Count of DoorArea instances.	✔	✔
u32	Door Count	Door Instance IDs	Array of instance IDs listing every DoorArea/Door instance in the world.	✔	✔
u32	1	Scan Count	Count of SCAN assets.	✔	✔
Scan	Scan Count	Scan Array	Array describing every SCAN asset used in this world.	✔	✔
u32	1	Multiplayer Music Count	Count of unlockable multiplayer music tracks.	✖	✔
SpecialFunction Unlock	Multiplayer Music Count	Multiplayer Music List		✖	✔
u32	1	Unknown Unlock Count	Count of SpecialFunction Unlock structs in the next array.	✖	✔
SpecialFunction Unlock	Unknown Unlock Count	Unknown Unlock Array	This is used by AutoMapperDarkWorldButton. Unknown if it can be used with anything else.	✖	✔
u32	1	Translator Door Count	Count of translator doors in the world.	✖	✔
u32	Translator Door Count	Translator Door Instance IDs	Array of instance IDs listing every Translator Door Location SpecialFunction instance in the world.	✖	✔
End of file

Versions

Possible version numbers:

Version	Game
0x3	Metroid Prime
0x5	Metroid Prime 2: Echoes
0x6	Metroid Prime 3: Corruption
0x8	Donkey Kong Country Returns

Toggleable Layer

Type	Name	Notes
u32	Area ID	Internal area ID (not the MREA ID).
u32	Layer Index	Index of the layer that can be toggled.
End of layer

Scan

Type	Name	Notes
Asset ID	SCAN Asset ID	Asset ID of a SCAN file.
u32	Logbook Category	Enum describing which logbook category this scan is part of. See below for possible values.
End of scan

Possible logbook category values:

ID	Category
0	Non-Logbook
1	Space Pirate Data
2	Chozo Lore
3	Creatures
4	Research

SpecialFunction Unlock

Type	Name	Notes
string	Unlock Name	Zero-terminated string. Mirrors the value of the string property on the SpecialFunction.
u32	Unknown	Always 0?
u32	Unknown	Always 1?
u32	Unknown	Always 0?
End of unlock