Proper way to declare screen only, local variables?

[henvu50]

I have variables that are only used in a screen. How should I declare those variables? Do they have to be declared outside of the screen or is it safe to declare variables within a screen?

Code: Select all

#What is the proper way to declare screen only, local variables?  
#Where should local scope, screen only variables be declared? Outside of screen or within?

screen testWindow:

  vbox: 
     # should I declare screen only variables with default 
     default test_var1 = 0
     # .... or $ ?
     $ test_var2 = 0

[Imperf3kt]

If they are only used within the screen (including changing them) then yes, you should place them in the screen. Depending on what you are doing, you will actually need to do so in order for some things to update themselves properly.

[henvu50]

If they are only used within the screen (including changing them) then yes, you should place them in the screen. Depending on what you are doing, you will actually need to do so in order for some things to update themselves properly.

So far using $ seems to be important, since I need the variables to reset to False on every screen update. If I use default, the values get remembered and I lose the functionality I need.

Like you said, I think it depends on what you're doing if you use $ or default as declarations.

[Imperf3kt]

If its within a screen, I prefer to use a python block

Example (just because I happen to have it open / be working on it)


This, by the way, when shown in-game, results in the following:

Assuming your device has a battery of course... Otherwise it'll say 100%

[trooper6]

You know, you can use default inside a screen. It is right in the documentation: https://www.renpy.org/doc/html/screens.html#default

[Remix]

Have you also considered passing the value as a screen parameter?

Code: Select all

screen testWindow( test_var = 0 ):
    text "Passed value was [test_var]"

label start:
    show screen testWindow( 5 )
    "..."

I'm not sure whether test_var would be local or global using that approach though... Maybe worth checking if you use parameters