Force a screen to update/refresh?

[qirien]

Hey, I have a little music player screen as part of my interface, and the buttons do what they are supposed to; however, the player text and buttons only update when another button is pressed somewhere else. I would like this screen to refresh itself often enough that when a new track is played, it will display the right track name, and when you stop or go to the next track, it displays the correct info.

It seems like clicking one of the imagebuttons should make the screen refresh (like if you click "Stop", it should no longer show the music that's playing and should display the play button instead), but that is not the case.

How can I make this screen refresh and show the correct information?

Code: Select all

init python:
    # Songs for computer pad
    pop_songs = MusicRoom(fadeout=0.5)
    pop_songs.add("music/Dandelion.ogg", always_unlocked = True)
    pop_songs.add("music/Shanghai_20_00.ogg", always_unlocked = True)
    pop_songs.add("music/Alpha.ogg", always_unlocked = True)
    pop_songs.add("music/YouUndone.ogg")

# Play music from the Music Room "pop_songs"
screen music_player():
    label "Music Player"
    $ current_song = renpy.music.get_playing()
    $ artist = ""
    $ song_title = ""
    if (current_song):
        if "Dandelion" in current_song:
            $ artist = "Kalabi"
            $ song_title = "Dandelion"
        #.... more setting song artists and titles deleted ....#

    if (current_song):
        text "{i}[song_title]{/i} by [artist]" size 14 ypos 30 xalign 0.5
    imagebutton auto "gui/previous_%s.png" xalign 0.3 yalign 1.0 action pop_songs.Previous()
    if (renpy.music.is_playing()):
        imagebutton auto "gui/pause_%s.png" xalign 0.5 yalign 1.0 action pop_songs.Stop()
    else:
        imagebutton auto "gui/play_%s.png" xalign 0.5 yalign 1.0 action pop_songs.Play()
    imagebutton auto "gui/next_%s.png" xalign 0.7 yalign 1.0 action pop_songs.Next()

[philat]

It's tough to say what you should do without knowing how you're using the screen, but renpy.restart_interaction() will refresh all screen elements.

[qirien]

So, would I call that as part of a list of actions, like:

Code: Select all

    imagebutton auto "gui/previous_%s.png" xalign 0.3 yalign 1.0 action [ 
                pop_songs.Previous(), 
                renpy.restart_interaction()
                ]

When I try that, the whole Ren'py engine freezes up when it gets to that screen. I can't right-click or even quit; I have to kill the process. I looked at the documentation of renpy.restart_interaction, and it seems like what I probably need to use, but I'm not sure of how to call it properly.

[nyaatrap]

When you use functions as screen action, remove "()"

[qirien]

Really?! Wow, you're right, thank you so much!
I guess it didn't come up as a syntax error because it is not parsed until the screen is shown.

Ohh, now I see it in the documentation. "Along with these actions, an action may be a function that does not take any arguments." Though it doesn't say that you need to remove the parentheses.