Rollback issue

[bambino358]

I have this code for playing background music:

Code: Select all

init python:
        renpy.music.register_channel("Chan1", "sfx")
        
    init python:
        chan1play = True
    
        def queueChanCallback1():
            if chan1play:
                randomswamp = renpy.random.choice( ("audio/den/1.mp3", "audio/den/2.mp3", "audio/den/3.mp3", "audio/den/4.mp3", "audio/den/5.mp3", "audio/den/6.mp3", "audio/den/7.mp3") )
                renpy.music.queue (randomswamp, channel="Chan1", clear_queue=True, loop=False, fadein=0, tight=True)
        renpy.music.set_queue_empty_callback(queueChanCallback1, channel='Chan1')

Everything works fine but when I make a step back (rollback) it always change the background music. Is there any way to prevent rollback to change music?

Thank you

[hell_oh_world]

I have this code for playing background music:

Code: Select all

init python:
        renpy.music.register_channel("Chan1", "sfx")
        
    init python:
        chan1play = True
    
        def queueChanCallback1():
            if chan1play:
                randomswamp = renpy.random.choice( ("audio/den/1.mp3", "audio/den/2.mp3", "audio/den/3.mp3", "audio/den/4.mp3", "audio/den/5.mp3", "audio/den/6.mp3", "audio/den/7.mp3") )
                renpy.music.queue (randomswamp, channel="Chan1", clear_queue=True, loop=False, fadein=0, tight=True)
        renpy.music.set_queue_empty_callback(queueChanCallback1, channel='Chan1')

Everything works fine but when I make a step back (rollback) it always change the background music. Is there any way to prevent rollback to change music?

Thank you

This seems relevant https://www.renpy.org/doc/html/save_loa ... k_rollback

[bambino358]

Hmm... doesn't seem to work. Problem is that I don't want to dissable rollback. I just don't want rollback to activate the "function" above.

[Kia]

when you roll back, the game will run your code and choose the music at random again, if you want to keep the choice you can run the random code earlier and keep the result in a variable. this way it doesn't change while rollback.
to keep the code from restarting the music, and as an alternative solution: you can use persistent variables.

hell_oh_world please read your private messages

[Autumnotopia]

I haven't tested it, but it seems to me like the in_rollback() function gives you a pretty useful tool to deal with this (if you can check if the game is rolled back before calling your function, it seems like it should do it). That said, I'm not entirely sure I understand how your music function is called so I may be off base.

[Imperf3kt]

I haven't tested it, but it seems to me like the in_rollback() function gives you a pretty useful tool to deal with this (if you can check if the game is rolled back before calling your function, it seems like it should do it). That said, I'm not entirely sure I understand how your music function is called so I may be off base.

I'm not the OP but I must say thanks a lot for pointing that out. I'm in the middle of making a blackjack game and roll back was causing all sorts of headaches.
This looks like just what I need.

[Kia]

I'm not the OP but I must say thanks a lot for pointing that out. I'm in the middle of making a blackjack game and roll back was causing all sorts of headaches.
This looks like just what I need.

I wrote a blackjack(ish) card game for a client of mine and since it was all in a screen, rollback never became an issue. I suggest ditching the jumping and labels for the games loop and contain it inside a screen.