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Messages - andrebrait

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I haven't looked into the actual score but I could imagine that both USA sets (the demo and the normal one) might get the same score value and then maybe the last one is prefered for no real reason. I guess the algorithm was more for a scenario where you only got distinct regions within one parent/clone relationship.

Well, I think my own algorithm has reached a point where I can say it's able to achieve a pretty good 1G1R set, as long as the No-Intro naming convention is used.

I have refined it with the help of some users and I think it's safe to say it works.

At the moment, it's only present as the Python script I linked in the original post for this thread.
Here's some tutorial of usage, if you're interested: https://www.reddit.com/r/RetroPie/comments/f5b2gb/how_to_make_1g1r_rom_sets_using_nointro_dats/
(Yes, the title is a bit provocative on purpose  ;D)

Of course, generating 1G1R sets is all it does, but it may be worth trying it and seeing if you think something like this could eventually be implemented in ClrMamePro itself.

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Got it. Funny, it probably shouldn't be picking a demo ROM in this case (as there's a retail one available). I'll look into the algorithm. I also think DAT-o-matic's DATs might be to blame here, as they omit a lot of information in the XML (like language, for example) and maybe they're also to blame for the algorithm picking up a demo ROM. That could explain why it's missing from my output set: I don't have Demos, Samples, Prototypes, etc.

I'll look closer into the scoring system to find out why it's picking up that demo instead of a retail ROM.

3
So I made a quick test....downloaded the Nintendo - Nintendo DS (Decrypted) (Parent-Clone) (20200126-032320).dat with that DAT-o-matic, loaded it in cmpro, enabled the 1G1R option, enabled EUR as region and I get Mario Kart DS (Europe) (En,Fr,De,Es,It) listed (see screenshot)
When I select region USA I get the mario usa set with checksum eb26155d...

So everything works fine here and I don't see any bug.

As mentioned before, Logiqx' 1G1R algorithm (which uses a scoring algorithm) is unchanged for over a decade and the results highly depend on a) your enabled regions/languages, plus b) the order of the enabled regions/languages, c) the original datfile and its "release" elements....and sometimes users simply have a totally different understanding what 1G1R is all about (how the setnaming and set selection works).

In your Python code I don't see Logiqx' algorithm implemented but surely you can point me to it in your code....
I guess part of Logiqx' code can be found on old forum posts like https://forum.no-intro.org/viewtopic.php?f=2&t=544

I'll dedicate some more time to this, but meanwhile, what I did was to follow the procedures from here:
https://forums.launchbox-app.com/topic/40303-rom-filtering-guide-for-clrmamepro-filter-all-usa-games-plus-all-exclusives-from-all-regions/

And I wasn't the only user who reported it excluding some games. Well, maybe the problem is in the steps in this link, then? I tried a number of other things but I failed to make it produce a set that included Mario Kart DS at all.

And I didn't implement his algorithm. I made my own (basically, it's also a scoring system and sorting a list of candidates based on it).
I'll check his algorithm and see where they differ, too.

4
Hi there,

I have tried to generate a 1G1R set for the Nintendo DS using DAT-o-matic's Parent/Clone XML (with default parent data) and I observed a few issues with it.

ROMs like "Mario Kart DS" would be simply missing, despite being available for all regions I selected (USA and EUR, in that order), among others. I see the full data for them in the DAT, including region data, but the ROM file is simply never picked up for selection.

For GBA, also, a number of Animal Crossing titles were missing, as well as a few other ones here and there.

Again, I checked the DAT and all the Parent/Clone data was there for those games.

I'll generate a better bug report with more detailed information, as all that happened a few weeks ago.

I created a small Python application that generates what the ROM selection is supposed to be like, from a Parent/Clone DAT, as a means of validating the selection clrmamepro makes (as well as creating my own tool for that because I wanted the sets immediately back then, instead of reporting the bug and letting someone fix it, wait, etc )

You can find it here: https://github.com/andrebrait/1g1r-romset-generator

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