Discuss how to use the Ren'Py engine to create visual novels and story-based games. New releases are announced in this section.
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This is the right place for Ren'Py help. Please ask one question per thread, use a descriptive subject like 'NotFound error in option.rpy' , and include all the relevant information - especially any relevant code and traceback messages. Use the code tag to format scripts.
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renardjap
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- Location: France ! Cocorico
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#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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#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
The most important words a man can say are, “I will do better”.
The most important step is always the next one.
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renardjap
- Regular
- Posts: 75
- Joined: Sun Aug 05, 2018 1:08 pm
- Location: France ! Cocorico
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Contact:
#3
Post
by renardjap » Sat Mar 07, 2020 12:29 pm
Works very well ! Thank you for your help !!!
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