Having trouble making a "Skip Speed" slider bar

[Creazd]

I've been working on a custom Preferences screen and am attempting to make a slider bar for skip speed. At first I didn't think it was possible, however after looking at the documentation I've tracked down the variable related to adjusting skip speed. I believe my current problem is my lack of knowledge regarding slider bars. Any help would be greatly appreciated!

Variable to adjust skip speed:

Code: Select all

config.skip_delay: (0-100)

My terrible attempt at making a slider:

Code: Select all

bar value StaticValue("config.skip_delay", 100):
        xalign 0.1 yalign 0.50 
        xmaximum 400 
        ymaximum 15

[nyaatrap]

There is some difficulty to change config.skip_delay. Because even you changed it in the game menu, Ren'py nullifies this change after you closed the game menu.
So you need a trick to achieve this thing. Here is a code how I achieved it.

Code: Select all

screen:
                label _("Skip Speed")
                bar value FieldValue(persistent, "skip_delay", range=100, offset=5, style="slider") bar_invert True

init python:
    def recursive_update():
        config.skip_delay = persistent.skip_delay

    config.interact_callbacks.append(recursive_update)