New Retropie user with questions about MAME!

xionyus

If any of this is not allowed I'm sorry :0
I downloaded a rom set from the internets and once it finished, the inside of the folder looks like this:
alt text

I checked most of the files, but I wasn't 100% sure what to do. Most of the ones outside of the rom folder seem like junk except for maybe the xml file. I did some google searching and I'm pretty sure the xml file needed to launch the games comes with the emulator and is updated every month, no? So, I just put all of the rom files inside of the roms/arcade folder inside of retropie. Took a few hours to transfer but I restarted emulationstation and it still pops up in the bottom left saying game does not work in the corner, which is weird. I am launching it using mame2003plus.

sleve_mcdichael

@xionyus said in New Retropie user with questions about MAME!:

@weirdh

If any of this is not allowed I'm sorry :0
I downloaded a rom set here

It is not (rule 3.)

(That's a good set though. But you'll want to edit that link out your post.)

and once it finished, the inside of the folder looks like this:

I checked most of the files, but I wasn't 100% sure what to do. Most of the ones outside of the rom folder seem like junk except for maybe the xml file.

You need the roms and samples folders, you can discard the rest. Put the roms files (and subfolders) in RetroPie/roms/arcade or RetroPie/roms/mame-libretro, and put the samples files in RetroPie/BIOS/mame2003-plus/samples.

That's a "full non-merged" set which means every game .zip file is self-contained and does not require the parent romset. This means you can pick and choose just the games you want and discard the rest. For example if you want to play Pac-Man (US, pacman.zip, clone of Puck-Man, Japan, puckman.zip) you only need the pacman.zip file and not the parent romset puckman.zip since all of the required files from the parent romset are also included in the clone.

You do still need the accompanying .chd's and samples for the games you do keep, though.

xionyus

@sleve_mcdichael Transferring the samples now, and will test later. Hopefully it'll all work. If not you'll hear back from me. Thanks!

barbudreadmon

@xionyus said in New Retropie user with questions about MAME!:

Do you need multiple ROM sets for either emulator?

As you might expect from its name, mame2003 is an emulator from 19 years ago. Dumping arcade games is a very complex process so many of the dumps available at that time were incomplete or corrupt, which led the emudevs from that time to write "simulation code" to make those games somehow playable, with more or less success at the attempt to reproduce the real thing.

Lots of those corrupt/incomplete romsets from 19 years ago have been properly dumped since then (not all, bad dumps are still being replaced from time to time), and the modern arcade emulators (non-vintaged MAME & FBNeo) will always use the newest dump available for a given game, so that they can provide the most authentic gaming experience.

There are obviously other differences between a modern emulator and its self from 19 years ago, MAME & FBNeo didn't stay idle during that time. Long story short they are better emulators but it might come at a cost, like being more demanding or having non-fixed romsets.

xionyus

@sleve_mcdichael I put all of the samples files in the right place here:

alt text

And I threw all of the ROMs and other folders into my arcade folder here:

alt text

I did reboot emulationstation and it still pops up in the bottom left saying 'game does not work' and I let it do it's thing because maybe I think it's lying to me but I don't think it is. I am launching the arcade games with mame2003plus. Anything you or anyone else recommends doing? Is there a launch error code I can post here to make it easier to diagnose?

sleve_mcdichael

@xionyus MAME isn't telling you that the game can't be found or isn't recognized, it's telling you that it "doesn't work." Some of them legitimately don't work (MAME is an archival tool first and foremost; the fact that it also allows one to play the games is somewhat of a "happy accident.")

What game are you seeing this on? Have you tried more than one?

Edit: nvm I see where it says which game.

sleve_mcdichael

@xionyus

Is there a launch error code I can post here to make it easier to diagnose?

Launch the game with verbose logging (https://retropie.org.uk/docs/Runcommand/#runcommand-launch-menu) and get the log from /dev/shm/runcommand.log; upload to pastebin.com & post the link here.

You could try the other versions of the game (9ballsh2.zip & 9ballsh3.zip) to see if either of them is working.

xionyus

@sleve_mcdichael I'm rebooting emulation station between each attempt because the logs look similar for each ROM, lol. I'm also refreshing winscp. All 3 versions of the ROM don't want to work and it's weird because I know the game can work. I dunno what wolfanoz did on his preset image to get it to work. Wish I had a spare sd card to poke around and look.

Here is the log for 9ballsht:
https://pastebin.com/hMbtWYvZ

9ballsht2:
https://pastebin.com/fy9rdBsS

9ballsht3:
https://pastebin.com/yLAnXz8Q

sleve_mcdichael

@xionyus if it helps, it's not just you, this title isn't working for me either in 2003 (I don't have 2003+ but I do have 2003 on my system. I got the same "game does not work" screen, and a pop-up warning: "there are known problems emulating this game.")

It seems to be working just fine in 2010 though (you'll need a different download. There's one linked from the same place you got this one, if I'm looking at the same thing. Remember what I said about full non-merged sets. You don't need the whole giant pack. You can take just the single 9ballsht.zip file from the 2010 pack and run it in lr-mame2010. This title doesn't have any samples or additional data [chd's -- Compressed Hunks of Data, like the laserdisc in Dragon's Lair, or the HDD in Killer Instinct]. Samples exist because some games used sound effects that are difficult to emulate so they just playback .wav recordings of the noises.)

...aaaand, another one's added to my set :)

mitu

Looking at 9ballsht in Mame2003Plus's dat file shows it's a clone of coolpool, so check if you have the parent rom in the same folder.

The other 2 variants are not supported by Mame2003plus, that's why they don't work. They may be working with other arcade emulators, as @sleve_mcdichael mentioned.

barbudreadmon

@sleve_mcdichael said in New Retropie user with questions about MAME!:

It seems to be working just fine in 2010 though (you'll need a different download

This dump was incomplete and corrupt until MAME 0.133 (2009?). As i said above, the older the emulator, the more likely you'll encounter those bad dumps issues or other emulation problems. As @mitu said, you might have more chances with coolpool, this one had a proper dump back in 2003, although it supposedly had emulation issues at that time but maybe the fixes for those were backported to mame2003+.

xionyus

@mitu I did have the coolpool rom in there as well. Not sure why it didn't want to work with mame2003+ at all. But I did happen to get it working by using MAME2010.

Thanks @sleve_mcdichael :)

Also in this pack I downloaded, it has 9ballsht2 and 3. Can I get rid of those?

And if anyone recommends any other games let me know :D Trying to add a bit at a time from the ground up and skyscraper can take awhile.

sleve_mcdichael

@xionyus

Also in this pack I downloaded, it has 9ballsht2 and 3. Can I get rid of those?

Yes, you can get rid of those if you don't want to play those variants (whatever they are; for example one might use trackball controls, or face the opponents in a different order or something. These are just examples, I don't know what the actual differences are.)

mahoneyt944

You may try to use these compatibility tables to see which games are working or not. These lists are not always 100% accurate but usually give you an idea where a game stands before trying to run one.
https://buildbot.libretro.com/compatibility_lists/

barbudreadmon

@mahoneyt944 said in New Retropie user with questions about MAME!:

These lists are not always 100% accurate

For that matter, i said it a few times already : for accuracy's sake you should flag dkong as having wrong (or maybe imperfect ?) colors in mame2003 & mame2003+

xionyus

@mahoneyt944 This is a cool list. Bookmarked it. Thanks!

mahoneyt944

@barbudreadmon honestly, those games are close enough that the average user would not notice, this list isn't about starting a witch hunt... it's just a general reference to whether a game is expected to play or not.

I don't know if you've ever worked on actual hardware like I have, but I can tell you that colors from one cabinet to another are often slightly different due to the judgement of the person adjusting the knobs in the back. This is also due to the fact that companies often used different CRT brands for the same game. Not to mention that an authentic cabinet will almost always have a degree of screen burn if it's actually in use for a period of time. I won't even get into the array of dithering techniques companies used to push more colors and better graphics out CGA monitors such as the electrohome G07, used in many cabinets like Bally Midway games such as Tron.

These things really raise the question of what is the perfect picture? If you've ever walked into a department store with TVs on display all scrolling through the same recording, you can see just how different the same color can be.

barbudreadmon

@mahoneyt944 Correct 1st level color should be magenta while older mame was vermilion, they don't seem that close to me, and there are differences on other colors.

This isn't about monitor settings or it would affect other redish colors the same way (see hiscore letters at the top), this is about resnet (resistance-based color calculation) not being properly emulated in older mame.

Sure, if you removed/replaced the resistors on the cabinet, the colors would be different, and would be even more different if you played around with the crt's colorimetry, but i believe the point here is to inform the user about the differences from an original unmodified cabinet.

I'm not telling you to fix that emulation since some players like it that way, but i think it should be properly documented, your list will never be accurate if you don't try to fix it.

mahoneyt944

@barbudreadmon just for reference in what we are talking about for anyone else who may be interested in this topic, here's a screenshot from fbneo and one from mame2003-plus. Yes the colors are slightly different but I don't see it as a reason for concern personally.... certainly more important things to focus on.

As far as the lists being accurate, it's a self generated webpage built from the source code's dat. So anyone who wants to submit a PR is welcome to do so, including for this concern. I designed these lists to be, for the most part, self sustaining so it doesn't require a devs tribal knowledge to maintain them. It's probably the most accurate representation of the cores current state there ever was. It's not perfect because the source code is not perfect which requires the community to participate 🙂.

barbudreadmon

@mahoneyt944 said in New Retropie user with questions about MAME!:

requires the community to participate

PR sent, i remember fixing resnet issues on a few other games so i might send other PR later when i'll remember their names.