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Announcing Pegasus Frontend

Scheduled Pinned Locked Moved Ideas and Development
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  • S
    StephanePare
    last edited by 20 Nov 2017, 07:47

    Just for the grid view I'd give your front end a try once it's out of alpha/beta :)

    A 1 Reply Last reply 20 Nov 2017, 08:19 Reply Quote 0
    • A
      AndersHP @StephanePare
      last edited by 20 Nov 2017, 08:19

      @stephanepare I can recommend this front end. I was a bit reluctant to try it already, because it's in "Alpha" only, since I'm no coder and just wants something that works and looks good.

      I'm experiencing very few bugs and I'm only using Pegasus by now.

      After I scraped with Universal XML scraper with box art, video and logos, I think this looks super awesome, I really love the speed it runs with, and the grid view is so neat.

      I'm emulating NES, SNES, MAME, NeoGeo and Master System, so cannot tell how it works with other consoles, but my recommendation is that you give it a whirl.

      My "Bubble Bobble" Themed Bartop Arcade
      My Gameboy

      1 Reply Last reply Reply Quote 1
      • F
        fluffypillow
        last edited by 20 Nov 2017, 19:05

        Yeah, there are still some features I'd like to implement before calling this a beta, but the development is going ok, and it shouldn't be that far now :)

        As for the weekly changelog,

        • Fixed asset loading on Windows
        • Fixed theme loading on Windows

        which might not sound much, however, in the "background" I was also quite busy working on a stable interface for theming, configuration and making tests for them. This should be done by next week. As a side effect, it's very likely that one of the next releases will have custom categories support, instant theme reloading and faster startup. I'll also post a proposal for the configuration files in the next few days. After we have a stable interface and config file format, I'll start writing some proper documentation.

        H 1 Reply Last reply 20 Nov 2017, 21:22 Reply Quote 3
        • H
          halfmanhalfcake @fluffypillow
          last edited by 20 Nov 2017, 21:22

          @fluffypillow look forward to the update next week for custom categories.

          Will the proposal for config files include config for games without ES? Would be great to use this frontend independently, without ES, (and with, of course).

          Request from me :)
          Is it possible to create a 'foundation/beginner' theme as a starter theme for theme creators learning the code? I've played around with flixnet and the default theme, but would love a simple, plain theme, just a title and gridview?

          1 Reply Last reply Reply Quote 0
          • F
            fluffypillow
            last edited by 20 Nov 2017, 23:59

            @halfmanhalfcake Yes and yes :)

            The proposal will be about Pegagasus' own config files, exactly for the reason you've mentioned. I'd also like to see if someone finds any issue with the format before I start coding/using it.

            I'd like to have at least 2-3 example themes built from scratch in the documentation/guide. The default theme is a bit hack-ish due to the variable column count of the grid and the animations of the top bar, but I could imagine building the Flixnet theme or eg. the PlayStation XMB UI as a tutorial (after the plain title+grid).

            H 1 Reply Last reply 21 Nov 2017, 08:52 Reply Quote 1
            • A
              AndersHP
              last edited by 21 Nov 2017, 07:09

              A plee to all future theme makers: please remember us with 4:3 and 5:4 monitors! :)

              My "Bubble Bobble" Themed Bartop Arcade
              My Gameboy

              1 Reply Last reply Reply Quote 1
              • H
                halfmanhalfcake @fluffypillow
                last edited by 21 Nov 2017, 08:52

                @fluffypillow great, look forward to it
                The more basic the better the foundation theme, for beginners like me :)

                1 Reply Last reply Reply Quote 0
                • F
                  fluffypillow
                  last edited by 21 Nov 2017, 22:44

                  A huge set of internal changes has just landed: custom categories are now technically possible (except they aren't read from any config file yet), the available data structures available for the themes have been reorganized, and a lot of new automatic tests have been added for them. The Flixnet theme has also been updated. These changes don't have visible effect yet, they are the preparation for a stable interface. As always, feel free to report if you notice any issues.

                  L 1 Reply Last reply 21 Nov 2017, 22:58 Reply Quote 2
                  • L
                    lilbud @fluffypillow
                    last edited by 21 Nov 2017, 22:58

                    @fluffypillow I'll test tomorrow afternoon and let you know of any issues.

                    Sadly have no time tonight

                    Creator of the Radiocade: https://retropie.org.uk/forum/topic/6077/radiocade

                    Backlog: http://backloggery.com/lilbud

                    1 Reply Last reply Reply Quote 1
                    • F
                      fluffypillow
                      last edited by fluffypillow 23 Nov 2017, 19:58

                      Ok, here is the current concept for Pegasus' own config and metadata files. This is something I wouldn't want to change once it's implemented so feel free to share your opinions. There's also a GitHub issue here.

                      How it works

                      Pegasus will store a list of directories that will be checked for games/roms. In every of such directory, there should be a file that describes (one or more) collections, and another that describes metadata for each game. The proposed name for them is collections.pegasus.txt and metadata.pegasus.txt.

                      File format

                      As a user (of my own program in this case), I want a simple text file in simple, readable format, that I can edit on any platform with any (minimally competent) text editor. I don't want to care about implementation details: I'm not going to hunt missing XML-tags, curly braces, semicolons or tabs/spaces. However, it must support Unicode text, multiline values and simple lists. It should be easy to edit and extend, yet something that doesn't take forever to read by the program.

                      Here's a more technical definition of the format, with examples for both the collections and metadata file further below. It was mainly inspired by the INI, Debian-control and nodejs-ini/npmrc formats, so some things might be familiar:

                      • the files are in Unicode (UTF-8 encoded without BOM)
                      • both the Unix and Windows-style line endings are supported, with Unix being preferred
                      • the file is processed line by line
                      • lines starting with # or ; are comments, and empty lines are ignored
                      • a file contains one or more sections, and sections are defined as [sectionname]
                      • sections contain settings, which are in option = value form
                      • lines starting with spaces or tabs are concatenated to the previous option's value
                      • if an option name ends with [] (ie. option[] = value), then option will be treated as a list, and value will be added to it as an element

                      Ok, let's see how that applies to the two files:

                      Collections file

                      The collection file defines one or more collections. You can select which files belong to a collection either by filtering for file extension (extensions), listing the file names (files[]), or using regular expressions (regex). Removing files from the collection can be done similarly, but with the ignore- prefix. If a collection is defined in multiple directories (with the same section name), the separate collections are merged into one (eg. a collection for all Zelda games but on different platforms).

                      explanation line # file contents
                      define a new collection called nes 1 [nes]
                      collections can have a proper name 2 name = Nintendo Entertainment System
                      I want it to include all .nes files 3 extensions = nes
                      except the following games 4 ignored-files[] = mybuggygame.nes
                      and 5 ignored-files[] = myduplicategame.nes
                      the launch command 6 launch = myemulator ${FILEPATH}
                      empty line to look fancy 7  
                      define a new collection called mario 8 [mario]
                      with a name 9 name = Mario games
                      I want it to contain these files 10 files[] = Super Mario Bros.nes
                      and 10 files[] = Super Mario Bros 2.nes
                      and also 10 files[] = Super Mario Bros 3.nes
                      if the launch command was already defined for a file by a previous collection, I don't need to repeat it, so I'm commenting this line out 11 # launch = myemulator ${FILEPATH}
                      optional empty line 12  
                      let's say I'm interested in having a collection of multi-game pirate cartridges 13 [pirate-multigame]
                      in case you forgot or don't want to name the collection, the section name will be used 14 name = Multi-game Pirate Carts
                      I want to include all files whose name contain "<somenumbers>-in-1"; regular expressions can be used if you're familiar with them (you can find tutorials on the net) 15 regex = \d+.in.1

                      So that was the collections file; let's see the metadata now.

                      Metadata file

                      Every file can have its own section where the metadata is defined.

                      explanation line # file contents
                      section names are the file names 1 [Super Mario Bros.nes]
                      some metadata 2 title = Super Mario Bros.
                        3 developer = Nintendo
                        4 publisher = Nintendo
                        5 genres[] = platformer
                        6 players = 1-2
                      a multiline text example 7 description = This is a really really long,
                      lines starting with spacing will get appended to description 8 multiline description, in fact it's so long
                        9 it spans three lines!
                      a short summary of (one paragraph or about 3-4 sentences) 10 summary = Hello, I'm a short summary,
                        11 I'll just stop at being two lines long.
                        12 # cloneof = filename.nes
                      year(-month(-date)) (lexical order) 13 release = 1985-09-13
                        14 rating = 86%
                      custom launch command to override the one set by a collection 15 # launch = myemulator -someflag ${FILEPATH}
                      the format can be extended with additional fields, prefixed with x-; they may not be used by Pegasus, but other tools can add additional informations with it 16 x-scraper-source = somescraper.com
                        17 x-retroarchievements-id = 123456

                      Aand that's the metadata file.

                      So this is roughly the format I'm planning. What do you think?

                      (this post got a bit long, sorry about that)

                      PS. Example files without comments

                      [nes]
                      name = Nintendo Entertainment System
                      extensions = nes
                      ignored-files[] = mybuggygame.nes
                      ignored-files[] = myduplicategame.nes
                      launch = myemulator ${FILEPATH}
                      
                      [mario]
                      name = Mario games
                      files[] = Super Mario Bros.nes
                      files[] = Super Mario Bros 2.nes
                      files[] = Super Mario Bros 3.nes
                      
                      [pirate-multigame]
                      name = Multi-game
                      regex = \d+.in.1
                      
                      [Super Mario Bros.nes]
                      title = Super Mario Bros.
                      developer = Nintendo
                      publisher = Nintendo
                      genres[] = platformer
                      players = 1-2
                      description = This is a really really long,
                          multiline description, in fact it's so long
                          it spans three lines!
                      summary = Hello, I'm a short summary,
                          I'll just stop at being two lines long.
                      release = 1985-09-13
                      rating = 86%
                      x-scraper-source = somescraper.com
                      x-retroarchievements-id = 123456
                      
                      H 1 Reply Last reply 24 Nov 2017, 01:55 Reply Quote 1
                      • H
                        halfmanhalfcake
                        last edited by 23 Nov 2017, 20:28

                        Great work. A couple of questions...

                        1. Is there a requirement to state the images in the metadata file? or can we continue to use the .../media folder as we do currently?

                        2. I assume this method of config files can be used to open windows (.exe) games?

                        3. How will pegasus know what directories to look for?

                        F 1 Reply Last reply 23 Nov 2017, 21:17 Reply Quote 1
                        • F
                          fluffypillow @halfmanhalfcake
                          last edited by 23 Nov 2017, 21:17

                          @halfmanhalfcake

                          • The media directory will continue to work, there are no fixed asset fields in the metadata format at the moment. I could imagine some extended asset support in the future though.
                          • Yes, you can either set the launch command for each game separately, or list the path to the game exes in a collection, then use ${FILEPATH} as the launch command. You probably don't want to use exe as an extension due to some games have multiple of them.
                          • There'll be an option for that in Pegasus (eventually), and the search directories will be stored in the program's settings file. Other sources like the ES2 systems.cfg could also be used.
                          1 Reply Last reply Reply Quote 0
                          • H
                            hi-ban @fluffypillow
                            last edited by 24 Nov 2017, 01:55

                            @fluffypillow if i was the one developing pegasus, i'd make it use the exact same format as emulationstation. That would ensure perfect compatibility, and it would be much easier for everyone to switch between ES and pegasus with no need to manually add thousands of games to a gamelist or create a custom scraper just for pegasus.

                            1 Reply Last reply Reply Quote 0
                            • A
                              AndersHP
                              last edited by 24 Nov 2017, 07:56

                              I was also thinking; what happens to us with perfect scraped and described games now, after this is implemented? Do we have to start all over again?

                              My "Bubble Bobble" Themed Bartop Arcade
                              My Gameboy

                              1 Reply Last reply Reply Quote 0
                              • F
                                fluffypillow
                                last edited by 24 Nov 2017, 14:23

                                @hi-ban personally I don't like XML as a user-side data format, and I'm willing to differ in that. The ES2 compatibility will still be available though (that is, this config file style is optional), and I'm also planning to create conversion tools between the two formats.

                                @AndersHP not at all, I'd like to create some tools for conversion between the two formats, like scripts for on-device conversion and also a webpage for when you're scraping on PC. My scraped data is in the ES2 files too, after all :)

                                1 Reply Last reply Reply Quote 0
                                • A
                                  AndersHP
                                  last edited by 25 Nov 2017, 19:20

                                  Am I the only one, who cannot get the runcommand menu to work from Pegasus? Game just boots. I have to goto Emulationstation to switch settings for roms, then return to Pegasus afterwards...

                                  My "Bubble Bobble" Themed Bartop Arcade
                                  My Gameboy

                                  D 1 Reply Last reply 25 Nov 2017, 21:25 Reply Quote 0
                                  • D
                                    Darksavior @AndersHP
                                    last edited by 25 Nov 2017, 21:25

                                    @andershp I never had an issue. I did have an issue now that I can't run pegasus at all if it's transferred from pc to pi. It warns me about some security hole ueid or something..

                                    Installing pegasus from retropie-setup works. I just had to point autostart to the pegasus location.

                                    1 Reply Last reply Reply Quote 0
                                    • F
                                      fluffypillow
                                      last edited by 26 Nov 2017, 17:27

                                      @AndersHP seems to work fine for me, on a Pi 3 running an older RetroPie install. I'll check if it happens with the latest version. Do you see anything weird in the logs of Pegasus or runcommand?

                                      @Darksavior interesting, can you check the exact warning message? There was also a Permission denied error report some time ago, and it turned out users cannot launch executables on NTFS file systems by default.

                                      D 1 Reply Last reply 26 Nov 2017, 23:06 Reply Quote 0
                                      • F
                                        fluffypillow
                                        last edited by 26 Nov 2017, 21:13

                                        @AndersHP also works fine on an updated RetroPie, hmm.

                                        1 Reply Last reply Reply Quote 0
                                        • F
                                          fluffypillow
                                          last edited by 26 Nov 2017, 21:24

                                          Also the weekly changelog (or rather, a summary):

                                          • large number of internal changes, as a base for future updates (post)
                                          • new config file proposal (post)

                                          In addition, I've just added theme reloading support (with F5); will likely come handy in the future. And since we've also reached alpha4+100, I've reset the counter, we're now in the alpha 5 phase (yay!).

                                          1 Reply Last reply Reply Quote 0
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