initialize pygame mixer before use

[NetSpida]

It seems that pygame.mixer was not always initialized.
Fixes #305

[adangert]

Thanks! I'll test these soon

[adangert]

Hi @NetSpida pygame mixer should always be initialized here: https://github.com/adangert/JoustMania/blob/master/piaudio.py#L274 and https://github.com/adangert/JoustMania/blob/master/piparty.py#L1050

I also tried changing the initialization from pygame.mixer.init(47000, -16, 2 , 4096) to pygame.mixer.init() which lists the frequency, size, channels, and buffer, and started getting a bunch of garbled audio and ALSA lib pcm.c:8545:(snd_pcm_recover) underrun occurred errors in the console.

have you tried doing a clean install of the raspberry pi OS and setup.sh? I'm not seeing this happen on my end.

[DrDecagon]

pygame mixer also gets initialized in update.py. Is it possible it does not release control of the device for piparty.py in some cases. If so, it could cause the pygame.error: ALSA: Couldn't open audio device: Invalid argument errors.

I tried this patch, except with pygame.mixer.init(47000, -16, 2 , 4096) instead of pygame.mixer.init() but still get errors.