Work with python instance

[JFillip]

Hello. I'm new in renpy and so I want to apologize for stupid questions.
Question:
I import python module in renpy, then I create new instance in my game. Then I will change some variables of instance and go to main menu.

Code: Select all

init python:
    from py.test import A
    
    a = A()

#    class A:
#    def __init__(self):
#        self.a = 20
    
    def let():
        global a
        a.a += 1000
init:
    image bg = "bg washington.jpg"

screen count():
    add "bg washington.jpg"
    frame:
        add "money.png"
        background None
        vbox:
            text "{b}{color=#000000}[a.a]{/color}{/b}" xpos 46 ypos 46 xanchor 0.5 yanchor 0.5

screen test(): 
        use count
        imagebutton:
            auto "button_%s.png"
            action Function(let)
            focus_mask True

label start:
    call screen test

When I start new game all variables changing will saved. But I need clear new instance.
Any links are welcome.
Sorry if I spend your time and thank you for any help.

[PyTom]

Basically, you have to create A in a default statement, rather than an init python block.

Code: Select all

default a = A()

But note that fields on a won't participate in rollback, since the magic Ren'Py uses to make rollback work doesn't work in python files.

[JFillip]

I will try this code:

Code: Select all

init python:
    from py.test import A

#    class A:
#    def __init__(self):
#        self.a = 20
    
    def let():
        a
        a.a += 1000

init:
    image bg = "bg washington.jpg"

define a = A()

screen count():
    add "bg washington.jpg"
    frame:
        add "money.png"
        background None
        vbox:
            text "{b}{color=#000000}[a.a]{/color}{/b}" xpos 46 ypos 46 xanchor 0.5 yanchor 0.5

screen test(): 
        use count
        imagebutton:
            auto "button_%s.png"
            action Function(let)
            focus_mask True

label start:
    call screen test

It doesn't help.

[PyTom]

You want default, not define. And remember, this code won't work with rollback.

[JFillip]

Thank you! Sorry for the carelessness, I was programming all night...
But now everything has fallen into place (i mean using rollback).