minexew / Freedom

Reverse engineering of Freedom Fighters (2003) and possibly other Glacier engine games

Freedom

Reverse engineering of Freedom Fighters (2003) and possibly other Glacier engine games

File formats in map data

BUF

- no header
- ASCII resource names throughout
- identifiers at the end
- random data referenced externally?
- not present in ErrorMessages

- contains GMS instance names
- contains GMS instance auxiliary buffers (not understood)

GMS - entities

- compressed
- cross-refs to PRM - mostly understood, able to render entire scene into .obj
- refers to function names (script not figured out yet)

LOC - hierarchical localization data

- fully understood
- not present in ErrorMessages

OCT - ?

PRM - object geometry

- we're able to enumerate models
- dump OBJs with correct vertex positions and load those into Blender
- doesn't describe model placement in world (see GMS)
- a lot of questions remain
- doesn't seem to contain world terrain (??)

RMC - ?

RMI - ?

SGP - ?

SND - ?

SUP - ?

TEX - textures

- texdump managed to parse everything we tried
- also contains reference to WAV files - this part is not understood

ZGF - compressed font collection

- able to reliably decompress
- unable to reliably tell font boundaries
- (probably not very interesting)

xtr - custom format to help mapping file layouts and find gaps in understood data