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Getting the rom name and emulator

Scheduled Pinned Locked Moved General Discussion and Gaming
pi model v3pythonscriptretropiesetup
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  • M
    meleu @cyperghost
    last edited by 20 Jul 2017, 20:19

    @cyperghost said in Getting the rom name and emulator:

    @daveyman123 I think you better give the 20 bucks to @meleu and he buys me a Caipirinha :)

    Let me know when you come to Rio de Janeiro and we'll drink some Caipirinhas and try to find some arcade to play Street Fighter or something. :)

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    C 1 Reply Last reply 20 Jul 2017, 20:23 Reply Quote 0
    • C
      cyperghost @meleu
      last edited by cyperghost 20 Jul 2017, 20:23

      @meleu Don't make any jokes! My company got's a branch office in south america. For three or four weeks a company pal was in Rio to sell goods and he visited his girlfriend there. So it could happen I'm in :) It's unlikly but never say never :)

      SFII? I was more addicted to MK! But for the Caipis sake :)

      M 1 Reply Last reply 20 Jul 2017, 20:28 Reply Quote 1
      • S
        Sano
        last edited by Sano 20 Jul 2017, 20:24

        You could try something like

        sleep 5
        while [$(pidof retroarch)]
        do
        *script to scroll once*
        sleep 5
        done

        Lauched in background by runcommand-onstart.

        C 1 Reply Last reply 20 Jul 2017, 20:32 Reply Quote 1
        • D
          daveyman123
          last edited by 20 Jul 2017, 20:24

          20 bucks to @meleu it is

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          • M
            meleu @cyperghost
            last edited by 20 Jul 2017, 20:28

            @cyperghost it's not a joke! Consider yourself invited. Any game is fun with enough alcohol and friends. :-)

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            • M
              meleu
              last edited by 20 Jul 2017, 20:31

              Let's get back on topic...

              @daveyman123 usually your python script scrolls the text only once or keeps looping the text?

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              D 1 Reply Last reply 20 Jul 2017, 20:34 Reply Quote 0
              • C
                cyperghost @Sano
                last edited by cyperghost 20 Jul 2017, 20:32

                @sano I think it isn't a matter of the retroarch-PID more that the script does anyting.
                But it's a nice catch to end a process by watching the retroarch-PID.

                @meleu and me descriped also ways to terminate a running script :)

                And thanks for the invitation. It's very unlikely that I ever enter brazil, but as I said never say never and market development changes quickly. My next stops will be more east .... romania, bulgaria, russia, belarussia...

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                • D
                  daveyman123 @meleu
                  last edited by 20 Jul 2017, 20:34

                  @meleu
                  scrolls the text once. I would like it to eventually loop. but right now it stops as soon as the game actually launches

                  M C 2 Replies Last reply 20 Jul 2017, 20:38 Reply Quote 0
                  • M
                    meleu @daveyman123
                    last edited by meleu 20 Jul 2017, 20:38

                    @daveyman123 got it. I'll try something when I get home (it means 4 or 5 hours).

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                    D 1 Reply Last reply 20 Jul 2017, 20:39 Reply Quote 0
                    • D
                      daveyman123 @meleu
                      last edited by 20 Jul 2017, 20:39

                      @meleu
                      oh gosh

                      I may have it figured out by then ;)

                      M 2 Replies Last reply 20 Jul 2017, 20:40 Reply Quote 0
                      • C
                        cyperghost @daveyman123
                        last edited by cyperghost 20 Jul 2017, 20:40

                        @meleu @daveyman123 It's late here - going to sleep.
                        Good night mates

                        @daveyman123
                        That's the wrong intention. The script should do the loop not a bash file. The bash file should only tell changes. Because you always load the python interpreter again and again and this will waste resources and even the python language gives you much much controll over strings. So I would rather use python intead of bash.

                        @meleu will certainly find an easy and working solution ;)

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                        • M
                          meleu @daveyman123
                          last edited by 20 Jul 2017, 20:40

                          @daveyman123 said in Getting the rom name and emulator:

                          I may have it figured out by then ;)

                          better yet!

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                          • C
                            cyperghost @daveyman123
                            last edited by 20 Jul 2017, 21:04

                            @daveyman123 said in Getting the rom name and emulator:

                            I will look into cyperghost's loop.sh example again and see if that works to put the python script in there

                            The loop example is useless. You should look the runcommand-onstart.shand how scripts are called and running in background. If you were able to readout files you can simply write the romname via echo $3 to a file or you can directly call the python script with $3 command.

                            I think @meleu will do a nice job but meanwhile you can also try to find a solution. I'm 100% sure you find one!
                            Good night

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                            • M
                              meleu @daveyman123
                              last edited by meleu 20 Jul 2017, 21:14

                              @daveyman123 Here are some ideas to let you find the solution yourself...

                              Use this code as inspiration for your runcommand-onstart.sh:

                              # getting the rom name with no full path and no extension
                              rom_name="$(basename "${3%.*}")"
                              # running the python script in background
                              sudo /path/to/python/code.py "$rom_name" &

                              This one as inspiration for your runcommand-onend.sh:

                              # killing the python script
                              sudo pkill -f "/path/to/python/code.py"

                              And this one as inspiration for your python script:

                              #!/usr/bin/python
                              
                              # I don't know if it's right, just used @daveyman123 code as example
                              from UHScroll import *
                              import unicornhat as unicorn
                              
                              import time sys
                              
                              while True:
                                  # I have no idea if this command is right, I just used @daveyman123 code as example
                                  unicorn_scroll(sys.argv[1], 'white', 255, 0.2)
                              
                                  # I have no idea if 5 seconds is OK, adapt it to your needs
                                  time.sleep(5)
                              
                              
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                              D 1 Reply Last reply 20 Jul 2017, 21:26 Reply Quote 0
                              • D
                                daveyman123 @meleu
                                last edited by 20 Jul 2017, 21:26

                                @meleu
                                there is still the problem of (i dont know if i mentioned it) the unicorn only scrolls through ONCE (even if i include a loop in python) then it will play a random sequence of lights. I.E. it reads "JIM" or "GOLDEN" in "GOLDENEYE". But as soon as the game launches it freezes or plays random lights.

                                My fear is it has something to do with the pins being messed with by retropie. I have not tried to replicate the problem on raspbian.. but I may have to try that.

                                What I have tried:
                                making sure audio isnt interfering with the unicorn hat pins (i.e. setting the audio output to hdmi)
                                and obviously have tried making the python script run in the background

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                                • S
                                  Sano
                                  last edited by Sano 20 Jul 2017, 21:35

                                  @meleu said in Getting the rom name and emulator:

                                  sudo /path/to/python/code.py "$rom_name" &

                                  Try to modify this line like this :

                                  sudo nohup /path/to/python/code.py "$rom_name" &
                                  
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                                  • D
                                    daveyman123
                                    last edited by 20 Jul 2017, 21:38

                                    @Sano
                                    nohup was nohelp... lol

                                    something is happening at the level of the pins i believe

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                                    • S
                                      Sano
                                      last edited by Sano 20 Jul 2017, 21:43

                                      Ok sorry, could you try

                                      nohup sudo /path/to/python/code.py "$rom_name" &
                                      

                                      (possibly with quotes)
                                      I'm pretty sure it's because the parent process (runcommand-onstart) terminates before game launch, so the child are killed, including your script.
                                      This could be solved with the use of nohup, if I ever remember the correct syntax with sudo...

                                      D M 3 Replies Last reply 20 Jul 2017, 21:50 Reply Quote 0
                                      • D
                                        daveyman123 @Sano
                                        last edited by 20 Jul 2017, 21:50

                                        @sano

                                        does nothing when i do that

                                        my hunch is it has to do with the support for GPIO controllers in retropie. I could be wrong

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                                        • D
                                          daveyman123
                                          last edited by 20 Jul 2017, 22:11

                                          nah thats not it. The driver packages for GPIO controllers isnt installed

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