OBD talk:Oni2AS: Difference between revisions
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;Alternative idea if you don't want to overwrite the Excel file | ;Alternative idea if you don't want to overwrite the Excel file | ||
:As it happens, '''Settings/rb.gamedata''' is the file whose data, at 0xE5000, is the one that comes first, and between it and the preceding string data there are 1866 bytes of unneeded space. Together with the 297 bytes of the file itself, that allows for 2153 bytes of plain text, which is enough to list a lot of the layouts, if not all of them. | :As it happens, '''Settings/rb.gamedata''' is the file whose data, at 0xE5000, is the one that comes first, and between it and the preceding string data there are 1866 bytes of unneeded space. Together with the 297 bytes of the file itself, that allows for 2153 bytes of plain text, which is enough to list a lot of the layouts, if not all of them. | ||
[[Category:Modding information]] | |||
Latest revision as of 17:11, 4 May 2022
Using this page to write up instructions for a straightforward patch allowing one to specify alternative/additional layouts in Settings/rb.gamedata
The file table entries for Settings/rb.gamedata and fonts/rbstrings.xls look like this:
| Offset | Type | Raw Hex | Value | Description |
|---|---|---|---|---|
| File table, 8881st entry | ||||
| 0x23300 | offset | 26 BC 04 00 | 0x4BC26 | offset to file name, from start of file name block, in bytes
|
| 0x23304 | offset | 00 88 7C 02 | 0x27C8800 | absolute offset to file data, from start of DAT file, in bytes |
| 0x23308 | int32 | 00 52 00 00 | 20992 | uncompressed file size, in bytes |
| 0x2330C | int32 | 12 15 00 00 | 5394 | compressed file size, in bytes |
| File table, 16456th entry | ||||
| 0x40C70 | offset | 98 10 0A 00 | 0xA1098 | offset to file name, from start of file name block, in bytes
|
| 0x40C74 | offset | 00 50 0E 00 | 0xE5000 | absolute offset to file data, from start of DAT file, in bytes |
| 0x40C78 | int32 | C7 02 00 00 | 711 | uncompressed file size, in bytes |
| 0x40C7C | int32 | 29 01 00 00 | 297 | compressed file size, in bytes |
- RB.DAT patch
- Adding all layouts to Settings/rb.gamedata could be as simple as making the following value changes to RB.DAT (after making a backup)
| Address | Old value | New value |
|---|---|---|
| 0x23304 | 00 88 7C 02 | 22 D3 1D 02 |
| 0x23308 | 00 52 00 00 | 00 00 00 00 |
| 0x2330C | 12 15 00 00 | 00 00 00 00 |
| 0x40C74 | 00 50 0E 00 | 00 88 7C 02 |
| 0x40C78 | C7 02 00 00 | 70 12 00 00 |
| 0x40C7C | 29 01 00 00 | 70 12 00 00 |
and replacing 4720 bytes of RB.DAT starting at 0x27C8800 with the byte-for-byte contents of THIS file.
- ISO patch
- To avoid the trouble of making a PS2-compatible ISO, one can instead make the following changes directly to oni2dev_ps2.iso or whatever it's called (after making a backup)
| Address | Old value | New value |
|---|---|---|
| 0x37A304 | 00 88 7C 02 | 22 D3 1D 02 |
| 0x37A308 | 00 52 00 00 | 00 00 00 00 |
| 0x37A30C | 12 15 00 00 | 00 00 00 00 |
| 0x397C74 | 00 50 0E 00 | 00 88 7C 02 |
| 0x397C78 | C7 02 00 00 | 70 12 00 00 |
| 0x397C7C | 29 01 00 00 | 70 12 00 00 |
and replace 4720 bytes of the same oni2dev_ps2.iso starting at 0x2B1F800 with the byte-for-byte contents of THIS file.
- Indeed, the RB.DAT file is stored as-is in the ISO, with a 0x357000 offset.
- UNFORTUNATELY...
- The game can only load 63 layouts at once without complaining. So one needs to provide a smaller Settings/rb.gamedata file, or at least one that announces fewer layouts in the first line. Like THIS ONE (first 63 layouts) or THIS OTHER ONE (last 32).
- Alternative idea if you don't want to overwrite the Excel file
- As it happens, Settings/rb.gamedata is the file whose data, at 0xE5000, is the one that comes first, and between it and the preceding string data there are 1866 bytes of unneeded space. Together with the 297 bytes of the file itself, that allows for 2153 bytes of plain text, which is enough to list a lot of the layouts, if not all of them.