How is it possible to get a return value from a function in a button?
What I would like to do is:
from ursina import *
app = Ursina()
def on_click():
#Some code
return #Some value
b = Button(on_click = on_click)
def input(key):
if key == "left mouse down":
print(b.returnvalue)
app.run()
but this obviously does not work.
As detailed in this answer, you can either declare a global variable before on_click(), and set that variable inside on_click() using the global keyword before the name of the variable.
It would be preferable however to create a class for your button, and create a member variable that you set inside an on_click() method and can later access with a getter method.
If you need a refresher on OOP concepts, I would recommend this article, or this video.