RGZ modified by Brynner

Brynner — Mon, 20 Feb 2023 05:03:11 -0000

An RGZ file is a proprietary compressed archive format used for [Ragnarok
Online], developed by
Gravity. It is used for
patching the local file system directory, the game client resides in. The
archive mostly contains updated game executable or new background music files.
The extension is always .rgz and might be an abbreviation for
ragnarok+gzip.

File Format
Tools
See Also

File Format

The RGZ archive is a sequential concatenation of files and/or directories
entries, compressed with gzip, much like
tar+gzip archives are.
Each entry inside the archive is defined by following structure:

Field Offset	Field Size	Field
0	1	Entry type (case-sensitive)
1	1	File name field length
2	?	File name (zero-terminated)

The entry type specifies, what kind of data it represents. It can be f
(file), d (directory) or e (end). The file name always denotes
relative position of the file, inside the folder, the archive is patched to.

File

A file entry can store any type of file, up to 232 - 1 Byte (4
GiB - 1 Byte) in length. If the file
is put into a sub-directory, the entire path is assumed to exist. A file entry
always follows a directory entry, that creates the path in advance. The
additional data in the file entry has the following structure:

Field Offset	Field Size	Field
0	4	Data length ([little
endian](http://en.wikipedia.org/wiki/Little_endian))
4	?	Data

End

End entry is the last entry inside the archive, and makes the patcher stop
parsing the archive. The file name for this entry is always end.

Hex Workshop Definition File (ragnarok.hsl)

/********************
* 
* Ragnarok Resource files to view and edit
*
*/

#include "standard-types.hsl"

#pragma displayname("Ragnarok GZip") ;
#pragma fileextensions(".rgz") ;

#pragma byteorder(little_endian) 
//#pragma maxarray(65536)
#pragma hide()

struct FILESTRUCT
{
    BYTE type;

    struct tagFILENAME
    {
        BYTE length;
        char string[length];
    };

    switch (type)
    {
        case 0x66:
            struct FILECONTENTS
            {
                DWORD length;
                blob  contents[length];
            };
            break;
        default:

            break;
    };

};
#pragma show()

struct files
{
    struct FILESTRUCT entries[256];
};

Recent changes to RGZ

RGZ modified by Brynner

File Format

File

Directory

End

Hex Workshop Definition File (ragnarok.hsl)

Tools

See Also