XPlor/definitions/asura/asura_chunk.xscript

// Asura Engine chunk structure
// Used by Rebellion games: Sniper Elite, AVP 2010, etc.

type asura_chunk [display="Asura Chunk"] byteorder BE
{
    // Chunk header: 4-byte ID + 4-byte size + 4-byte version + 4-byte flags
    chunk_id = ascii(read(4));
    u32 chunk_size;
    u32 version;
    u32 flags;

    chunk_id = chunk_id;


    ui("chunk_id", "Chunk ID");
    chunk_size = chunk_size;

    ui("chunk_size", "Chunk Size");
    version = version;

    ui("version", "Version");
    flags = flags;

    ui("flags", "Flags");

    // Calculate remaining data size
    data_size = chunk_size - 16;

    if (data_size > 0) {
        data = read(data_size);
        ui("data", "Chunk Data");
    }
}

type asura_fcsr_chunk [display="FCSR Resource Chunk"] byteorder BE
{
    // FCSR chunk header
    chunk_id = ascii(read(4));
    u32 chunk_size;
    u32 version;
    u32 flags;

    chunk_id = chunk_id;


    ui("chunk_id", "Chunk ID");
    chunk_size = chunk_size;

    ui("chunk_size", "Chunk Size");
    version = version;

    ui("version", "Version");
    flags = flags;

    ui("flags", "Flags");

    // Resource info
    u32 resource_type;
    u32 unknown1;
    u32 resource_size;

    resource_type = resource_type;


    ui("resource_type", "Resource Type");
    unknown1 = unknown1;

    ui("unknown1", "Unknown1");
    resource_size = resource_size;

    ui("resource_size", "Resource Size");

    // Read null-terminated name
    name = cstring();
    name = name;

    ui("name", "Resource Name");
}

type asura_lfsr_chunk [display="LFSR List Resource Chunk"] byteorder BE
{
    // LFSR chunk header (list of file references)
    chunk_id = ascii(read(4));
    u32 chunk_size;
    u32 version;
    u32 flags;

    chunk_id = chunk_id;


    ui("chunk_id", "Chunk ID");
    chunk_size = chunk_size;

    ui("chunk_size", "Chunk Size");
    version = version;

    ui("version", "Version");
    flags = flags;

    ui("flags", "Flags");

    // Number of entries
    u32 entry_count;
    entry_count = entry_count;

    ui("entry_count", "Entry Count");
}

type asura_tsxt_chunk [display="TSXT Texture Set Chunk"] byteorder BE
{
    // TSXT chunk header (texture set)
    chunk_id = ascii(read(4));
    u32 chunk_size;
    u32 version;
    u32 flags;

    chunk_id = chunk_id;


    ui("chunk_id", "Chunk ID");
    chunk_size = chunk_size;

    ui("chunk_size", "Chunk Size");
    version = version;

    ui("version", "Version");
    flags = flags;

    ui("flags", "Flags");

    // Texture count
    u32 texture_count;
    texture_count = texture_count;

    ui("texture_count", "Texture Count");
}

type asura_stsa_chunk [display="STSA Asset List Chunk"] byteorder BE
{
    // STSA chunk header (asset list - reversed ASTS)
    chunk_id = ascii(read(4));
    u32 chunk_size;
    u32 version;
    u32 flags;

    chunk_id = chunk_id;


    ui("chunk_id", "Chunk ID");
    chunk_size = chunk_size;

    ui("chunk_size", "Chunk Size");
    version = version;

    ui("version", "Version");
    flags = flags;

    ui("flags", "Flags");

    // File count
    u32 file_count;
    file_count = file_count;

    ui("file_count", "File Count");
}