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WDT files specify exactly which map tiles are present in a world, if any, and can also reference a "global" WMO. They have a chunked file structure
[[WDT]] files specify exactly which map tiles are present in a world, if any, and can also reference a "global" [[WMO]]. They have a [[Chunk|chunked]] file structure.
 
WDT, as well as [[ADT]], [[WMO]], [[M2]] and [[WDL]] files follow a chunked structure similar to IFF, consisting of chunks of the following format:
'''Offset  Type Description'''
0x0 char[4] Chunk identifier - in reverse character order
0x4 uint32 Chunk size
0x8 [size] bytes Chunk data
 
The initial chunk in all of these files is an MVER chunk, specifying the version of the map files in a 32-bit integer. This version is always 0x12. (I am assuming, for version 1.2 of the file format?)
 
All files use Intel (little-endian) byte order.  


==  MPHD chunk ==
==  MPHD chunk ==


Header chunk. Contains 8 32-bit integers. The first integer is 1 for maps without any terrain, 0 otherwise. The rest are always 0.  
*'''Header chunk.'''
Contains 8 32-bit integers. The first integer is 1 for maps without any terrain, 0 otherwise. The rest are always 0.  


==  MAIN chunk ==
==  MAIN chunk ==


Map tile table. contains 64x64 = 4096 records of 8 bytes each. Each record can be considered a 64-bit integer: 1 if a tile is present, 0 otherwise.  
*'''Map tile table.'''
Contains 64x64 = 4096 records of 8 bytes each. Each record can be considered a 64-bit integer: 1 if a tile is present, 0 otherwise.  


==  MWMO, MODF chunks ==
==  MWMO, MODF chunks ==


For worlds with terrain, the MWMO chunk is empty and there is no MODF chunk. For a global-WMO-only world, these chunks specify an object in the same format as it is already done in ADT files. See the ADT format description for details.
For worlds with terrain, the MWMO chunk is empty and there is no MODF chunk. For a global-[[WMO]]-only world, these chunks specify an object in the same format as it is already done in [[ADT]] files. See the [[ADT]] format description for details.

Revision as of 14:05, 3 August 2007

WDT files specify exactly which map tiles are present in a world, if any, and can also reference a "global" WMO. They have a chunked file structure.

MPHD chunk

  • Header chunk.

Contains 8 32-bit integers. The first integer is 1 for maps without any terrain, 0 otherwise. The rest are always 0.

MAIN chunk

  • Map tile table.

Contains 64x64 = 4096 records of 8 bytes each. Each record can be considered a 64-bit integer: 1 if a tile is present, 0 otherwise.

MWMO, MODF chunks

For worlds with terrain, the MWMO chunk is empty and there is no MODF chunk. For a global-WMO-only world, these chunks specify an object in the same format as it is already done in ADT files. See the ADT format description for details.

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