[Solved] UnboundLocalError: local variable 'vllager' referenced before assignment

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renardjap
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[Solved] UnboundLocalError: local variable 'vllager' referenced before assignment

#1 Post by renardjap » Fri Mar 06, 2020 7:42 am

Hello :)

I want to create a function to create new villager in my game if there is enough food. But the game return me UnboundLocalError: local variable 'vllager' referenced before assignment. But I made a villager variable, I don't understand why the game doesn't find it...

Code: Select all

screen board:
    vbox:
        xalign 0.5
        yalign 0.5
        text "Villageois inactifs: [villager]"
        textbutton "Créer villageois":
            action Function(creat_villager)

init python:
    def creat_villager():
        if food >= 10:
            villager += 1
        else:
            renpy.notify("You don't have enough food")

define e = Character('Eileen', color="#c8ffc8")
default villager = 0
default food = 10

label start:

    show screen board
    "[villager]"
    "[food]"
    e "Hello"

    return
Thnaks for help
Last edited by renardjap on Sat Mar 07, 2020 12:29 pm, edited 1 time in total.

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RicharDann
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Re: UnboundLocalError: local variable 'vllager' referenced before assignment

#2 Post by RicharDann » Fri Mar 06, 2020 8:48 am

You need to use global statement to let Ren'Py know you want to modify a global variable (created with default):

Code: Select all

default villager = 0
init python:
    def creat_villager():
        global villager # <--- access the variable 
        if food >= 10:
            villager += 1
Otherwise the function will treat villager as a local variable (one created inside the function), that hasn't been created yet.
A more detailed explanation: viewtopic.php?t=50964#p491426
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The most important step is always the next one.

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renardjap
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Re: UnboundLocalError: local variable 'vllager' referenced before assignment

#3 Post by renardjap » Sat Mar 07, 2020 12:29 pm

Works very well ! Thank you for your help !!!

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