Getting the rom name and emulator

cyperghost

@daveyman123
Well there could be a method that should work.

You write the $3 argument to a file on runcommand-onstart.sh

echo $3 > /home/pi/unicorn.txt
sudo python onstart2.py &

Open the file /home/pi/unicorn.txt in python for every loop and dispaly the string from written file to your program

Then on runcommand-onend.sh

echo "killterm" > /home/pi/unicorn.txt

you write on killterm to the same file as on runcommand-onstart.sh
Within python you analyse the content of unicorn.txt
if it's not "killterm" then the unicorn flys, if it's killterm the python program ends

BUT THAT'S A MESSY STYLE!!!

daveyman123

@cyperghost
I use sudo because it wont run otherwise
lol its ok that your code is sloppy im a newbie and cant tell the difference

as for the python script. I think the problem lies in something to do with RetroPie being an experimental OS for the unicorn.

here is my code in the python script


from UHScroll import *
import sys
import time
import os
import unicornhat as unicorn

rom_name = os.path.basename(os.path.normpath(sys.argv[3]))

unicorn_scroll(rom_name,'white',255,0.2)

this produces the result of freezing half way through writing "GOLDENEYE". e.g it prints "GOLDEN" then freezes.

meleu

@cyperghost said in Getting the rom name and emulator:

Is there a better way to end a process running in background?

My favorites are using pgrep/pkill.

@daveyman123 I'm confused about this unicorn stuff. Can you explain what exactly you want to do and what info you need from runcommand?

cyperghost

@meleu and what about the method here
I thought killing processes by pkill/kill is bad style? Isn't it not?

Sano

SIGKILL (-9) is bad, SIGTERM (-15) is totally normal.
Default behaviour of kill/pkill is to send a SIGTERM.

meleu

@cyperghost said in Getting the rom name and emulator:

I thought killing processes by pkill/kill is bad style? Isn't it not?

IMHO this is THE method for killing processes. :)

I think we can strongly simplify things here, but I don't know what exactly @daveyman123 wants to do nor what exact info his python script needs.

daveyman123

@meleu
you mean how can i replicate the scrolling text on the unicorn using bash?

Right now its done using a script i got off github https://github.com/topshed/UnicornHatScroll/blob/master/UHScroll.py

I think the problem is however that as soon as runcommand-onstart.sh exits the python script stops running

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

meleu

@daveyman123 do you want the text scrolling during all the time the emulator is running?

cyperghost

@meleu Now I'm surprised :D meleu the p-killer :)

I think @daveyman123 wants to scroll romname on the hat.

daveyman123

@cyperghost

yes. and to be honest this is for a customer on freelancer paying me 20 bucks.
if you guys get it to work I will pay you each 10 dollars on paypal.

meleu

@daveyman123 damn! It can be a crazy thing, but when there is money involved part of the willing decreases... :)

I'll try to help you anyway... hold on a little.

daveyman123

@meleu
@cyperghost
where are you guys from? :)

cyperghost

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

@meleu Nice selfie!

meleu

@daveyman123 you may know my compatriot here:
blanka

daveyman123

https://gyazo.com/fdca868affb3ecd1f7c6f6accf2bd267
gif showing progress so far

meleu

@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. :)

cyperghost

@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 :)

Sano

You could try something like

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

Lauched in background by runcommand-onstart.

daveyman123

20 bucks to @meleu it is

meleu

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