OpenGOAL
OpenGOAL emulates Jak and Daxter. It reads 3 files, 3 of them required: without a required file it does not start games.
About this profile
Technical notes
Native port of the Jak and Daxter games built from the decompiled GOAL code. gk runs the game, goalc compiles GOAL source, and extractor turns the user's PS2 ISO into the data gk loads.
RetroBat installs v0.3.8: the gk.exe, goalc.exe and extractor.exe of its opengoal.7z are byte identical to opengoal-windows-v0.3.8.zip, and its data tree has the same files, so the profile is pinned to that tag. The launcher reads the game name (jak1, jak2 or jak3) from the first line of the ROM file, then checks data/out/<game>/iso. When that folder is missing it runs "extractor.exe -g <game> -e -d -c <iso>" with the ISO path set in the system options, and refuses to start without one. It then starts gk.exe -g <game> with its own config folder.
extractor (decompiler/extractor/main.cpp):
- -e takes a file whose extension is .iso and which is larger than
1000000000 bytes, unpacks it into iso_data/_temp and computes an XXH64
over the hashes of all its files (
decompiler/,extractor/ extractor_util.cpp:278-304 decompiler/).extractor/ main.cpp:295-317 - validate needs a DGO folder in the extraction. It reads the serial
from the boot ELF name (SCUS_971.24 gives SCUS-97124) and hashes that
ELF with XXH64, then looks both up in extractor_iso_database
(
decompiler/,extractor/ main.cpp:35-110 decompiler/,extractor/ extractor_util.cpp:30-166 229-251). A missing DGO folder stops extraction. Any other mismatch only fails the run under -v, which RetroBat does not pass, and leaves the data in iso_data/_temp instead of iso_data/<game> (decompiler/).extractor/ main.cpp:318-335 - -d decompiles with the config of the detected release, -c compiles goal_src into data/out/<game>.
The database knows Jak 1 as SCUS-97124 (Black Label and Greatest Hits), SCES-50361, SCPS-15021 and SCPS-56003, Jak 2 as SCUS-97265, SCES-51608, SCPS-15057 and SCKA-20010, and Jak 3 as SCUS-97330, SCUS-97516, SCKA-20040 and SCES-52460. The contents hashes it stores are XXH64 values over per file hashes, not hashes of the ISO file, so no entry below carries one.
At run time gk reads only what the extractor and compiler built:
out/<game>/iso, listed by the fake ISO file system, and out/<game>/fr3
for the renderer (game/,
game/). The data folder of the release
(goal_src, decompiler/config, custom_assets, game/assets, launcher) is
program source and configuration the compiler reads, shipped with every
build. goal_src/jakx is present, but the extractor accepts only jak1, jak2
and jak3 at this tag (decompiler/, 289-292).
3 files: 3 required, 0 optional.
By kind: 3 game data.
In this collection: 0 in repo, 0 missing and 3 unsourceable.
Game data
Section titled “Game data”jak1.iso required unsourceable game data
Jak and Daxter: The Precursor Legacy PS2 disc image
- System: Jak and Daxter
- No file name is fixed. Accepted serials SCUS-97124, SCES-50361, SCPS-15021 and SCPS-56003, identified by the boot ELF name and its XXH64. Read once by the extractor, which builds out/jak1 for gk.
- Not collectable: retail disc image the collection does not hold, and a same-named image of another game must not stand in (acknowledged gaps)
jak2.iso required unsourceable game data
Jak II PS2 disc image
- System: Jak and Daxter
- No file name is fixed. Accepted serials SCUS-97265, SCES-51608, SCPS-15057 and SCKA-20010, identified by the boot ELF name and its XXH64. Read once by the extractor, which builds out/jak2 for gk.
- Not collectable: retail disc image the collection does not hold, and a same-named image of another game must not stand in (acknowledged gaps)
jak3.iso required unsourceable game data
Jak 3 PS2 disc image
- System: Jak and Daxter
- No file name is fixed. Accepted serials SCUS-97330, SCUS-97516, SCKA-20040 and SCES-52460, identified by the boot ELF name and its XXH64. Read once by the extractor, which builds out/jak3 for gk.
- Not collectable: retail disc image the collection does not hold, and a same-named image of another game must not stand in (acknowledged gaps)
Next steps
Section titled “Next steps”- Get your files, for the setup you play on
- Every system, and the files each one needs
- When a game does not start