Transition when showing screen [SOLVED]

[Milkymalk]

Quick and probably stupid question: How do I use a transition when showing a screen?
I tried this:

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on "show" action With(Dissolve(1.0))

but nothing happens at all.

The screen is called from within a python function with

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renpy.call_screen('hackinggrid', self)

so I can't just use "show screen myscreen with dissolve".

Also, How can I make a solid color image with Alpha < 1.0 to use as a background in a screen? By using a fourth "color" element for Alpha, like "#00000080" instead of "#000000". Okay, that was easy.

[nyaatrap]

$renpy.transition(dissolve)
show screen XXX

renpy.transition is a function that internally used as config.menu_transition or others.

[Milkymalk]

Tried it;

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            renpy.transition(dissolve)
            self.result = renpy.call_screen('hackinggrid', self)

It made no difference

[nyaatrap]

It should, unless your screen is too heavy to load all screen elements. Or do you want to add pause while showing screens?

[Milkymalk]

When the screen is loaded it is almost empty, just a few small images, a fullscreen background and a viewport.

Not sure what you mean with "add pause". I just want to use a transition when the screen appears.

[Milkymalk]

I don't know why it didn't work before, but now it does. Apparently, the on "show" statement I still had in the screen hindered the renpy.transition() statement from working - if I have both, the transition does not occur.

But something strange is happening. I also added this to my screen:

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    on "hide" action With(Dissolve(1.0))

What it does is not dissolve the screen when the interaction ends, but instead it dissolves the following "say" statement in!

The screen is called via "variable = renpy.call_screen()". Then I leave the interaction by using the "Jump()" screen action from another screen. My guess is that this causes the interaction to end, hiding the screen without causing any transitions. So the "queued" transition from on "hide" is probably used for the next interaction, which is the dialogue window appearing.

I know it's not the most elegant way, but trying to use on "hide" action Return() from the other screen didn't work.

Any ideas how I can use a transition when exiting the interaction? Maybe a different architecture for doing this? Currently I have the second screen jump out of the interaction because I don't know how to do it from the called screen once the second screen closes (on its own, with a timer).

[nyaatrap]

renpy.transition() and renpy.with_statement() is different.
renpy.with_statement is actually a combined statement of transition and pause. If you use

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show X with Tran(1.0)

then it's almost same to

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show X
$renpy.transition(Tran(1.0)) # it queues how to show.
$renpy.pause(1.0) # this line execute transition

screen action With() is actually renpy.transtion(), so it's executed at the next interaction or pause. That's why it behaves like that.

I don't know it'll work or not, but try putting $renpy.pause after hide screens. (Though I think transform works better than transition)

[Milkymalk]

But I'm not using the with statement, I'm using the With() screen action which, according to the manual, "causes a transition to occur". Even if it's the "next" transition, it should apply to the hiding and not the say statement. I still think the transitiuon for hiding the screen is just skipped because I literally jumped out of the interaction.

Regardless, I tried putting a pause directly after the screen is hidden, but it doesn't change a thing.

What do you mean with transforms? I don't know how to apply a transform to a screen that is already shown.

[nyaatrap]

On hide action is triggered by return, so it can't apply to the old screen already been hidden. You may have to put the action before return, not on hide.
Anyway, transform is easier:

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screen:
    window at show_hide_dissolve

transform show_hide_dissolve:
    on show:
        alpha .0
        linear .5 alpha 1.0
    on hide:
        alpha 1.0
        linear .5 alpha .0

If even transform doesn't work, the problem is somewhere different in your code.

[Milkymalk]

Thank you, that finally worked!