[Resolved] Functions in screens

[Regis]

I have a screen that has a part like this:

Code: Select all

screen my_screen(param1):
        if param1 == 1:
            add "img1" rotate -90 xzoom -1 xpos 1.02 ypos -0.5
        elif param1 == 2:
            add "img1" xalign 0.2
        elif param1 == 3:
            add "img1" xalign 0.4
        else:
            add "img1" xalign 0.1 xzoom -1

I would like move this if/else logic to a separate function and make calculations more complex. Like compute xalign using one of provided screen parameters as input. How to do that?

[xavimat]

Code: Select all

init python:    
    def crazy_computing(v, w, x, y, z):
        # Some crazy computing that produces:
        return rotate, xzoom, yzoom, xalign, yalign
        
screen my_screen(v, w, x, y, z):    
    $ v1, v2, v3, v4, v5 = crazy_computing(v, w, x, y, z)
    add "img1" rotate v1 xzoom v2 yzoom v3 xalign v4 yalign v5
        
label start:
    show screen my_screen(v, w, x, y, z)
    #...

Be careful and don't mix "align" with "pos". Infact, "align" sets the "pos" and the "anchor" at the same time.

[Regis]

xavimat, thanks! That worked.
I was not aware that it's permitted to use python statements in screens.

[xavimat]

I was not aware that it's permitted to use python statements in screens.

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