[SOLVED]Using Function action in imagebutton

[Nero]

I want to use Function option for action imagebutton but it looks like it only works for functions without arguments. How do I use a function with 1,2 or unlimited number of arguments? Not sure what I'm doing wrong I'm getting an TypeError if I try to use it like shown in code below : TypeError 'NoneType' object is not callable

It's not well explained in documentation either. Anyone please help?

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    imagebutton:
        idle "pic"
        hover "pic2"
        action Function(doSomething) # This works
        action Function(doSomething(argument)) # Adding an argument doesnt work?? Getting error: TypeError 'NoneType' object is not callable

[enaielei]

If you'll go to the documentation of the Function action you'll see that there are *args and **kwargs there.
Doing some a little bit of reading about those will solve your problems.

[Nero]

I will need little bit more help on this one possible with example, I was reading what you posted but it doesn't help my case I understand what it does but I don't see the need for this in my case. My function does not need any of *args and **kwargs as I already know the number of arguments that I need in this function. All I need is to get the value that was clicked on so it can be run inside of the Function.

[laure44]

Instead of

Code: Select all

Function(doSomething(argument))

do this instead :

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Function(doSomething, argument)

[Nero]

Yes that's it. Thanks laure, however it makes no sense to me why it needs to be called this way.

[Ocelot]

Yes that's it. Thanks laure, however it makes no sense to me why it needs to be called this way.

All screen code is executed when screen is evaluated (during prediction/display). It happens multiple times. Every function call you will place there will be executed during each of those. For actions which should happen as the result of some interaction you do not want that. Because of that screen actions are not functions. They are closures: objects which contain information nessesary to perform an action and can be executed manually later.

Both correct syntax and identity of screen actions are in RenPy documentation