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<H1 align=center>TRAOD Formats</H1>
<P align=left>Tomb Raider: angel of darkness features a brand new game engine.
That means new file formats had to be made. While the first engine had files
with 1 big structure, with the new game engine the level files are split up into
smaller parts. This means there are a lot of pointers inside the files. This way
just a part where you are playing can be loaded, which means less memory is
needed and a level loads faster. However, a single level is shorter this way
which causes the game to load a new (part of a) level more often.</P>
<P align=left> </P>
<P align=left> </P>
<DIV align=center>
<CENTER>
<TABLE cellSpacing=0 cellPadding=0 width="100%" border=0>
<TBODY>
<TR>
<TD width="100%">
<H2 align=center>1. GMX Files</H2>
<CENTER></CENTER>
<P align=left>The .gmx files are big files containing a full level. They
include all textures, animations, meshes and the rooms. But these are
seperated from each other. The gmx files contains some smaller files for
animations, characters and rooms.</P></TD></TR>
<CENTER>
<TR>
<TD width="100%"><FONT face=Courier size=2><FONT color=#0000ff>struct
</FONT>GMXFile_Pointer<BR>{<BR> <FONT color=#0000ff>long
</FONT>ID;<FONT color=#0000ff><BR> long </FONT>Pointer;<FONT
color=#0000ff><BR> long </FONT>Size;<FONT
color=#0000ff><BR></FONT>};<FONT color=#0000ff><BR><BR>struct</FONT>
GMXFile<BR>{<BR> <FONT color=#0000ff>long</FONT>
Version;
<FONT color=#008080>// 0x40666666</FONT><BR> <FONT
color=#0000ff>int</FONT> NumPointers;<BR> <FONT
color=#0000ff>int</FONT> Unknown1;<BR> GMXFile_Pointer
*Pointers;<BR>};</FONT></TD></TR>
<TR>
<TD width="100%">Each pointer in the GMXFile_Pointer gives you another
file. They appear to be in random order. The ID field is unknown. It seems
to be a unique ID for each filename.</TD></TR>
<TR>
<TD width="100%">
<H3><BR>1.1 Character files</H3>
<P>One of the files that you can find are characters files
(.chr).</P></TD></TR>
<TR>
<TD width="100%"><FONT size=2><FONT face=Courier><FONT
color=#0000ff>struct </FONT>CHRFile_TextData<BR>{<BR> <FONT
color=#0000ff>char</FONT>
Format[4];
<FONT color=#008080>// 'DXT1', 'DXT3' or 0x00000015
(B8G8R8A8).<BR></FONT> <FONT color=#0000ff>long</FONT>
Unknown1;
<FONT color=#008080>// Mostly set to 2 or 4<BR></FONT> <FONT
color=#0000ff>long</FONT>
Unknown2;
<FONT color=#008080>// Always 1?<BR></FONT> <FONT
color=#0000ff>long</FONT> Levels;<BR> <FONT
color=#0000ff>long</FONT> XSize;<BR> <FONT color=#0000ff>long</FONT>
YSize;<BR> <FONT color=#0000ff>long</FONT> DataSize;<BR> <FONT
color=#0000ff>char</FONT> *Data;<BR>}; <FONT
color=#0000ff><BR><BR>struct </FONT>CHRFile_TextInfo<BR>{<BR> <FONT
color=#0000ff>long</FONT> Unknown1;<BR> <FONT
color=#0000ff>long</FONT> Unknown2;<BR> <FONT
color=#0000ff>long</FONT> Unknown3;<FONT color=#0000ff><BR></FONT>
<FONT color=#0000ff>long</FONT> Unknown4;<FONT
color=#0000ff><BR></FONT> <FONT color=#0000ff>long</FONT>
Unknown5;<FONT color=#0000ff><BR></FONT> <FONT
color=#0000ff>long</FONT> Unknown6;<BR>};<FONT
color=#0000ff><BR><BR>struct </FONT>CHRFile_Textures<FONT
color=#0000ff><BR></FONT>{<BR> <FONT color=#0000ff>long</FONT>
NumTextInfo;<BR> <FONT color=#0000ff>long</FONT> Unknown1;<BR>
CHRFile_TextInfo *TextInfo;<BR> CHRFile_TextData
*TextData;<BR>};<FONT color=#0000ff><BR><BR>struct
</FONT>CHRFile_Mesh<BR>{<BR> <FONT color=#0000ff>long</FONT>
Unknown1;<BR> <FONT color=#0000ff>char</FONT> Name[64];<BR>
<FONT color=#0000ff>char</FONT>
Unknown2[380];
<FONT color=#008080>// Lots unknown data<BR></FONT>};<FONT
color=#0000ff><BR><BR></FONT></FONT><FONT face="Courier New"><FONT
color=#0000ff>struct</FONT> CHRFile_MeshData_Unk2 {<BR> <FONT
color=#0000ff>unsigned</FONT> <FONT color=#0000ff>short</FONT>
Unknown1;<BR> <FONT color=#0000ff>unsigned short</FONT>
Unknown2;<BR><FONT color=#0000ff> unsigned long</FONT>
Unknown3;<BR><FONT color=#0000ff> unsigned long</FONT>
Unknown4;<BR>};</FONT></FONT>
<P><FONT face="Courier New" size=2><FONT color=#0000ff>struct</FONT>
CHRFile_MeshData_Vertex {<BR> <FONT
color=#0000ff>char</FONT>
Unknown[19];
<FONT color=#008080>// (first </FONT></FONT><FONT face=Courier><FONT
color=#008080>CHRFile_MeshData</FONT> </FONT><FONT face="Courier New"
color=#008080 size=2>structure has 38 bytes per Vertex</FONT><FONT
face="Courier New" size=2><FONT color=#008080>)<BR></FONT>};</FONT></P>
<P><FONT size=2><FONT face="Courier New"><FONT color=#0000ff>struct</FONT>
</FONT><FONT face=Courier>CHRFile_MeshData </FONT><FONT
face="Courier New">{<BR> <FONT color=#0000ff>long</FONT>
Unknown1[3];<BR><BR> <FONT color=#0000ff>long</FONT>
NumVertices;<BR> CHR_MeshData_Vertex *Vertices;<BR> <BR>
<FONT color=#0000ff>long</FONT> NumIndex;<BR> <FONT
color=#0000ff>short</FONT> *Index;<BR><BR> <FONT
color=#0000ff>long</FONT> NumUnknown2;<BR> CHR_MeshData_Unk2
*Unknown2;<BR><BR> <FONT color=#0000ff>long</FONT> Unknown3;
<BR> <FONT color=#0000ff>long</FONT>
Unknown4;<BR>};<BR></FONT></FONT><FONT face=Courier size=2><FONT
color=#0000ff><BR>struct</FONT> CHRFile<BR>{<BR> <FONT
color=#0000ff>long</FONT>
Unknown1;
<FONT color=#008080>// Seems to be always 0<BR></FONT> <FONT
color=#0000ff>long</FONT>
TexturePointer;
<FONT color=#008080>// Pointer to the textures<BR></FONT> <FONT
color=#0000ff>long</FONT>
MeshPointer;
<FONT color=#008080>// Pointer to the beginning of the first
CHRFile_Mesh</FONT> <FONT color=#008080>structure</FONT><BR> <FONT
color=#0000ff>long</FONT>
Unknown1;
<FONT color=#008080>// Pointer to the something<BR></FONT> <FONT
color=#0000ff>long</FONT>
MeshDataPointer; <FONT
color=#008080>// A pointer to first CHRFile_MeshData
structure<BR></FONT> <FONT color=#0000ff>long</FONT>
NumMeshes;
<FONT color=#008080>// Number of CHRFile_Mesh you must read at the</FONT>
<FONT color=#008080>MeshPointer offset</FONT><BR>};</FONT></P></TD></TR>
<TR>
<TD width="100%">
<H3>1.2 Map files</H3>
<P>Map files contain (part of) a level. Big levels are split in multiple
maps. At some placed the screen goes black and a new map is loaded. This
is done to reduce the size of textures and vertex/index buffers.</P></TD></TR>
<TR>
<TD width="100%"><FONT face=Courier size=2><FONT color=#008080>// First
structure looks like some room definition, not sure however</FONT><FONT
color=#0000ff><BR><BR>struct</FONT> MAP_Rooms<BR>{<BR> <FONT
color=#0000ff>long</FONT> NumRooms;<BR> MAP_RoomPointer
*Rooms;<BR>};<BR><BR><FONT color=#0000ff>struct</FONT>
MAP_RoomPointer<BR>{<BR> <FONT color=#0000ff>long</FONT>
Unknown1;<BR> <FONT color=#0000ff>long</FONT>
Pointer;<BR>};<BR><BR><FONT color=#0000ff>struct</FONT>
MAP_Room<BR>{<BR> <FONT color=#0000ff>long</FONT>
Unknown1;<BR> <FONT color=#0000ff>long</FONT> Unknown2;<BR>
<FONT color=#0000ff>long</FONT> Pointer1;<BR> <FONT
color=#0000ff>long</FONT> Pointer2;<BR>};<BR><BR><FONT color=#008080>//
Textures in Direct3D Format. Can be simply loaded to a surface, included
mipmaps.</FONT><BR><BR><FONT color=#0000ff>struct</FONT>
MAP_Textures<BR>{<BR> <FONT color=#0000ff>long</FONT>
NumTextInfo;<BR> <FONT color=#0000ff>long</FONT> Unknown1;<BR>
<FONT color=#0000ff>long</FONT> NumTextData;<BR> <FONT
color=#0000ff>long</FONT> Unknown2;<BR> MAP_TextInfo
*TextInfo;<BR> MAP_TextDataHeader *TextDataHeader;<BR>
MAP_TextData *TextData;<BR>};<BR><BR><FONT color=#0000ff>struct</FONT>
MAP_TextInfo<BR>{<BR> <FONT color=#0000ff>long</FONT>
Unknown1;<BR> <FONT color=#0000ff>long</FONT> Unknown2;<BR>
<FONT color=#0000ff>long</FONT> Unknown3;<BR> <FONT
color=#0000ff>long</FONT> Unknown4;<BR> <FONT
color=#0000ff>long</FONT> Unknown5;<BR> <FONT
color=#0000ff>long</FONT> Unknown6;<BR>};<BR><BR><FONT
color=#0000ff>struct</FONT> MAP_TextDataHeader<BR>{<BR> <FONT
color=#0000ff>char</FONT> Format[4]; // 'DXT1', 'DXT3' or 0x15000000. Last
one is uncompressed A8R8G8B8 format.<BR> <FONT
color=#0000ff>long</FONT> Unknown1; // 2 or 4<BR> <FONT
color=#0000ff>long</FONT> Unknown2; // Always 1<BR> <FONT
color=#0000ff>long</FONT> Unknown3; // Always 30<BR> <FONT
color=#0000ff>long</FONT> Levels; // Number of levels in
this texture. 7 for 256x256 textures, 2 for 8x8 textures.<BR> <FONT
color=#0000ff>long</FONT> XSize;<BR> <FONT color=#0000ff>long</FONT>
YSize;<BR> <FONT color=#0000ff>long</FONT> DataSize; // Size
of this texture.<BR> <FONT color=#0000ff>long</FONT> Unknown4;
// Always 0?<BR> <FONT color=#0000ff>long</FONT> Unknown5; //
Always 0?<BR>};<BR><BR><FONT color=#0000ff>struct</FONT>
MAP_TextData<BR>{<BR> <FONT color=#0000ff>char</FONT>
*Data;<BR>};<BR><BR><FONT color=#0000ff>struct</FONT>
MAPFile<BR>{<BR> <FONT color=#0000ff>long</FONT>
RoomPointer;<BR> <FONT color=#0000ff>long</FONT>
TexturePointer;<BR> <FONT color=#0000ff>long</FONT>
UnknownPointer1;<BR> <FONT color=#0000ff>long</FONT>
UnknownPointer2;<BR> <FONT color=#0000ff>long</FONT>
UnknownPointer3;<BR>};</FONT></TD></TR></TBODY></TABLE></CENTER></DIV>
<P align=center> </P>
<DIV align=center>
<CENTER>
<TABLE height=413 cellSpacing=0 cellPadding=0 width="100%" border=0>
<TBODY>
<TR>
<TD width="100%" height=104>
<H2 align=center>2. DB Files</H2>
<CENTER></CENTER>
<P align=left>The data folder from aod contains 3 .db files and have all
their own format. These files contain important data for the game. The
actor.db file contains a lot of information about all friends and enemies
in the game. The function of the other 2 files, weapon.db and invent.db,
is not known yet. But the weapon.db must have something to do with the
guns and ammo and invent seems to be about pickups.</P></TD></TR>
<CENTER>
<TR>
<TD width="100%" height=62>
<H3><BR>2.1 Actor.db</H3>
<P>As said before, actor.db is all about the NPCs (Non Player Characters).
It's a easy format, which can be explained with just 2
structures:</P></TD></TR>
<TR>
<TD width="100%" height=226><FONT face=Courier size=2><FONT
color=#0000ff>struct</FONT> ActorDB<BR>{<BR> <FONT
color=#0000ff>long</FONT> NumActors;<BR> ActorDB_Item
*Actors;<BR>};<BR><BR><FONT color=#0000ff>struct</FONT>
ActorDB_Item<BR>{<BR> <FONT color=#0000ff>long</FONT>
ActorID;<BR> <FONT color=#0000ff>long</FONT> HitPoints;<BR>
<FONT color=#0000ff>long</FONT> Type;<BR> <FONT
color=#0000ff>long</FONT> BaseID;<BR> <FONT
color=#0000ff>long</FONT> Flags;<BR>};</FONT></TD></TR>
<TR>
<TD width="100%" height=21>The ActorID is an unique number for each actor.
You cannot have 2 actors with the same id. Some actors can have shared
animations. An enemy takes the animations from the base actor. This is set
by the BaseID. If an enemy has it's own animations, BaseID must be set to
it's own id. Else it points to the actor where the animations are used
from.<BR>Different from the other TR games, the main actor data is no
longer hardcoded. The hit points of an enemy can be set using the
HitPoints field. It's not clear to say how much time you must shoot an
enemy to kill based on the hit points. It depends on the type of gun you
use and the distance to the enemy. For example, a rat far away can take
more shots then a guard right in front of you.<BR>The Type value can be
set to 4 values. If an character is playable, it has a type of 1. Friendly
characters that cannot be shot have the type set to 2. Enemies which can
be fired at have type 3. Finally there is a type 4 which seems to be used
for animating objects.<BR>The last value, Flags, can be set to 0, 1 and 3.
The meaning of it is still unknown, but proberly it has something to do
with the type of
actor.</TD></TR></TBODY></TABLE></CENTER></DIV></CENTER></CENTER></BODY></HTML>
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