Displaying several backgrounds (solved)

[Lina]

I'm trying to show a set of background images at the beginning of my game without any text or character sprites. To set the mood so to say.
But I'm obviosly doing something wrong and I can't figure it out. My code so far looks like this:

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label start:
    scene bg bird
    scene bg gras

So, the first image the player looks at is a bird. When he clicks with his mouse, the next image should be the gras. However, the game starts right away with the gras.

I've tried it with

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scene bg bird with dissolve

and that worked a little bit. Except that the game menu and the bird were dissolving, not the bird and the gras. Also, the bird disapeared too quickly and it should only disappear when the player clicks with the mouse. I realize that this is probably a really silly question, but I'm a bit lost here and would appreaciate any help.

[DragoonHP]

That is because you didn't tell Ren'Py to stop there...

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$ renpy.pause()

[MoPark]

Overall note on coding in general:

Programs will execute line-by-line. In your example, it read "scene bg bird" and executed it, but then read the next line "scene bg gras" and executed that immediately afterwards, before continuing to the next line. Since we're running modern systems, it executes those lines so quickly that you ended up not seeing the bird bg at all, because it immediately read the next line and did that.

This is why you need pauses and other such methods in your program (timed transitions, menus, etc). If you had no pauses whatsoever, it could run everything in a second or two and that'd be your entire game in a blink of an eye!

This is my simplified and likely not terribly technical explanation for why your problem happened, and DragoonHP provides the solution for it.

[Lina]

Thank you, you two. That has solved my problem and made the whole thing clearer for me.