Crazy Racing PAK: Difference between revisions
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imported>Ikskoks (Created page with "{{GRAFPageHeader}} == PAK == * ''' Format Type ''': Archive <br> * ''' [http://en.wikipedia.org/wiki/Endianness Endian Order] ''': Little Endian <br> * ''' Signature '''...") |
imported>Ikskoks |
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<div class="toccolours mw-collapsible" id="mw-customcollapsible-myDivision" style="width:800px; overflow:auto;"> | <div class="toccolours mw-collapsible" id="mw-customcollapsible-myDivision" style="width:800px; overflow:auto;"> | ||
<pre> | <pre> | ||
// | // Crazy Racing PAK file format (by barncastle) | ||
struct Archive | |||
{ | |||
uint FileCount; | |||
FileInfo FileInfos[FileCount]; | |||
byte Data[x]; | |||
} | |||
struct FileInfo | |||
{ | |||
uint Hash; | |||
int Offset; // multiply by 4 | |||
int CompressedSize; // LZMA | |||
} | |||
</pre> | |||
</div> | |||
=== Hash Algorithm === | |||
<div class="toccolours mw-collapsible" id="mw-customcollapsible-myDivision" style="width:800px; overflow:auto;"> | |||
<pre> | |||
// Hash function (by barncastle) | |||
uint Hash(string value) | |||
{ | |||
// append suffix and lowercase | |||
// e.g. Res\ALight.mesh => res\res\alight.mesh | |||
value = (@"res\" + value).ToLower(); | |||
uint h = 0u; | |||
for (int i = 0; i < value.Length; i++) | |||
h = 31 * h + (byte)value[i]; | |||
return h; | |||
} | |||
</pre> | </pre> | ||
</div> | </div> | ||
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* Files are compressed with '''LZMA''' compression. | * Files are compressed with '''LZMA''' compression. | ||
* Filenames are '''hashed'''. [https://pastebin.com/4HgKJPZD Here] is the list of filenames. | |||
=== Games === | === Games === | ||
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[[Category:Complete Complete|Crazy Racing PAK]] | [[Category:Complete Complete|Crazy Racing PAK]] | ||
[[Category:Platform | [[Category:Platform Android|Crazy Racing PAK]] | ||
[[Category:CE | [[Category:CE Both|Crazy Racing PAK]] | ||
[[Category:Format_Archive | Type: Archive]] | [[Category:Format_Archive | Type: Archive]] | ||
[[Category:Extension_pak | Extension: pak]] | [[Category:Extension_pak | Extension: pak]] | ||
[[Category:BMS_None | BMS: None]] | [[Category:BMS_None | BMS: None]] | ||
[[Category:Hash]] | |||
[[Category:LZMA compression]] | |||
[[Category:File Format]] | [[Category:File Format]] | ||
Latest revision as of 10:55, 13 August 2022
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PAK
- Format Type : Archive
- Endian Order : Little Endian
- Signature : None
Format Specifications
// Crazy Racing PAK file format (by barncastle)
struct Archive
{
uint FileCount;
FileInfo FileInfos[FileCount];
byte Data[x];
}
struct FileInfo
{
uint Hash;
int Offset; // multiply by 4
int CompressedSize; // LZMA
}
Hash Algorithm
// Hash function (by barncastle)
uint Hash(string value)
{
// append suffix and lowercase
// e.g. Res\ALight.mesh => res\res\alight.mesh
value = (@"res\" + value).ToLower();
uint h = 0u;
for (int i = 0; i < value.Length; i++)
h = 31 * h + (byte)value[i];
return h;
}
Notes and Comments
- Files are compressed with LZMA compression.
- Filenames are hashed. Here is the list of filenames.
Games
List of games using this file format:
- Crazy Racing (Android) (*.PAK)
QuickBMS Script
Not written yet.
Compatible Programs
None.