screen update transitions in 6.18 [solved]

[saguaro]

per the changelog for the upcoming 6.18 release:

Ren'Py has been changed to make a copy of the screens being displayed before a transition occurs. This makes it possible to use a transition to show screen updates. For example, one could increase the value displayed by a bar, and then use the dissolve transition to dissolve in the new segment of bar.

How does one accomplish this? I have a bar that is decremented by a function, and I can either show the screen again (and see the zoom transform on replace) or I can leave the screen up and see the animated value decrease, but I'm not sure how to get both effects at the same time or if I can.

Code: Select all

screen heart_meter:
    tag h
    frame:
        background None xalign 0.5 yalign 0.0
        at quick_zoom
        fixed:
            bar:
                value AnimatedValue (current_heart, range=10) left_bar "images/gui/heart-meter-full.png" right_bar "images/gui/heart-meter-empty.png" xmaximum 150 ymaximum 51 xalign 0.5 thumb None    

...
init python:
    def heartbeat(value):
        global current_heart
        current_heart += value
        renpy.show_screen("heart_meter")

[PyTom]

Screen transitions are done with the With action, or else the with statement.

Code: Select all

init python:
     $ value = 0

screen test:
    vbox:
        text "[value]"
        textbutton "Increase" action [ SetVariable("value", value + 10), With(dissolve) ]

Code: Select all

show screen test

"Before."
$value += 10
with dissolve
"After."

[PyTom]

Screen transitions are done with the With action, or else the with statement.

Code: Select all

init python:
     $ value = 0

screen test:
    vbox:
        text "[value]"
        textbutton "Increase" action [ SetVariable("value", value + 10), With(dissolve) ]

Code: Select all

show screen test

"Before."
$value += 10
with dissolve
"After."

[saguaro]

Thanks PyTom, I appreciate you.