| Line 23: | Line 23: | ||
* 4 bytes - paragraph_offsets_blocks_list | * 4 bytes - paragraph_offsets_blocks_list | ||
* 4 bytes - symbols_count # number of symbols contained in the tpl | * 4 bytes - symbols_count # number of symbols contained in the tpl | ||
* 2 bytes - | * 2 bytes - universal symbols ID shared between all .mdt and positionnal from tpl file | ||
'''paragraph_offsets_blocks_list''': | '''paragraph_offsets_blocks_list''': | ||
* 4 bytes - uint32 absolute offsets - array of paragraph_offsets_block terminated by -1 (FF FF FF FF) | * 4 bytes - uint32 absolute offsets - array of paragraph_offsets_block terminated by -1 (FF FF FF FF) | ||
| Line 34: | Line 34: | ||
data_block contains int16 indexes relative to the tpl symbol list. First symbol in the tpl has number 0 then horizontaly symbol 1, 2 ... So data block(s) contains texts. | data_block contains int16 indexes relative to the tpl symbol list. First symbol in the tpl has number 0 then horizontaly symbol 1, 2 ... So data block(s) contains texts. | ||
* FFFE: space | * FFFE: space <- each negative value describe something not present in the tpl | ||
* 1000: new line | * 1000: new line | ||
* 1001: end of the phrase | * 1001: end of the phrase | ||
| Line 40: | Line 40: | ||
* 80FF: stop appliying a color | * 80FF: stop appliying a color | ||
* 8002: use the player name | * 8002: use the player name | ||
== Text engine == | |||
The text engine use a hash table corresponding to symbols and allow to color the textures or use vars like player name. Here is the hashtable: | |||
Virtual World RE has developed the python script [https://github.com/Virtual-World-RE/NeoGF/tree/main/pzztool pzztool.py] to manipulate MDT files and their internal files allowing to unpack / pack mdt files. | Virtual World RE has developed the python script [https://github.com/Virtual-World-RE/NeoGF/tree/main/pzztool pzztool.py] to manipulate MDT files and their internal files allowing to unpack / pack mdt files. | ||
Revision as of 15:27, 12 September 2022
This article is about Gotcha Force MDT file format and ongoing researchs on it.
mdt files:
MDT files are same than pzz but packing only uncompressed files.
MDT header (0x800 bytes):
- 4 bytes - uint32 file count (big endian)
- 4 bytes - uint32 array: file size divided by 0x800 and upper rounded for each file
All .mdt contains 2 files:
- 000 dat file with texts used in the game
- 001 TPL including an alphanumeric alphabet used by the dat file
dat file:
header:
- 4 bytes - paragraph_offsets_blocks_list
- 4 bytes - symbols_count # number of symbols contained in the tpl
- 2 bytes - universal symbols ID shared between all .mdt and positionnal from tpl file
paragraph_offsets_blocks_list:
- 4 bytes - uint32 absolute offsets - array of paragraph_offsets_block terminated by -1 (FF FF FF FF)
paragraph_offsets_block 0: # first paragraph_offsets_block describing all paragraph offsets in the data block 0
- 4 bytes - int32 array of absolute offsets which point to pragraphs in the data block terminated by -1 (FF FF FF FF). The first offset is the data block offset.
data_block 0:
- 2 bytes - signed int16 list <- paragraph_offsets_block 0 describe where each paragraph begin.
paragraph_offsets_block 1: ... data_block 1: ...
data_block contains int16 indexes relative to the tpl symbol list. First symbol in the tpl has number 0 then horizontaly symbol 1, 2 ... So data block(s) contains texts.
- FFFE: space <- each negative value describe something not present in the tpl
- 1000: new line
- 1001: end of the phrase
- 80yy: start appliying a color to following letters
- 80FF: stop appliying a color
- 8002: use the player name
Text engine
The text engine use a hash table corresponding to symbols and allow to color the textures or use vars like player name. Here is the hashtable:
Virtual World RE has developed the python script pzztool.py to manipulate MDT files and their internal files allowing to unpack / pack mdt files.