How to access Python class in Renpy?

[tofuuu]

Hi! I'm sorry if you saw me too often. I was playing around with renpy and python, so i tried to access a python class in renpy. I want to get user input for the numbers, but somehow it didn't work, Btw i know this code isn't applied for visual novel, i just took an easiest example to tested out. So here's my code

Code: Select all

python:
    class Operation:
        num= []
        def __init__(self):
            n = input("How many numbers? ")
            n = int(n)
            i = 0
            while i < n:
                temp_num= input("Enter number-%d: " %i)
                temp_num= int(temp_num)
                self.num.append(temp_num)
                i+=1

        def print_num(self):
            return self.num

and in the label start, i called it like this:

Code: Select all

label start:
	$ objek_a = Operation()
	$ ang = objek_a.print_num()
	x "[ang]"

But i got some errors. Can you help me how to fix it? Please Thank you

[tofuuu]

ah solved it! i should put the python block inside the start label. Thank you! Hope you have a good day

[rames44]

The slightly “more Ren’py way” of doing this is to move the class to an “init python” block (instead of just a “python” one). That way, the class definition will be set up before any of your script is run. (All the “init” stuff is done before any script runs, so you can put it in its own file if you want)

[trooper6]

Yeah, class definitions shouldn't be inside the start label.

[tofuuu]

But if i use init python, i can't access renpy.input, since i want to ask user for their input

[trooper6]

Some things shouldn't be classes. But just labels that you call.

[rames44]

Again, the “more Ren’py way” would be to separate the functions - ask for input using “normal” script, and then if you need a class to use that info, pass it to the class via a $ line or an in-line Python block. What happens if you need to update the class between 0.1 and 0.2? The way you’ve done it, someone with a save won’t get the updates, because they will be past that block of Python.

As trooper6 quite correctly points out, you can create callable sections of Ren’py script if you need reusable script-based “stuff.”