Crazy Racing PAK

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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.