[alternative found] set items in list from screen

[Kia]

I have this button:

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                                vbox:
                                    button:
                                        text "Remove"
                                        action SetVariable('persistent.chardb[i][0]',-3)

that should set an entry in a list, in my head it should work fine but I'm getting this error:

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I'm sorry, but an uncaught exception occurred.

While running game code:
  File "game/script.rpy", line 12, in script call
    call chars
  File "game/battle/chars.rpy", line 107, in script
    pause
  File "renpy/common/000statements.rpy", line 385, in execute_pause
    renpy.pause()
  File "renpy/common/00action_data.rpy", line 50, in get_selected
    return getattr(self.object, self.field) == self.value
AttributeError: 'StoreModule' object has no attribute 'persistent.chardb[i][0]'

anybody has any Idea what am I doing wrong here?

[Divona]

Try:

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action SetField(persistent, 'chardb[i][0]', -3)

https://www.renpy.org/doc/html/screen_a ... l#SetField

[Ocelot]

In my experience, SetVariable does not work well with dictionaries, lists, object fields and anything else. And trying to choose one of dozen of data manipulation functions is annoying.
So, I prefer to make python function which does what I want and call it with Function action. Something like that:

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def set_persistent_char_data(id1, id2, value):
    persistent.chardb[id1][id2] = value
#...
action Function('set_persistent_char_data', i, 0, -3)

[Kia]

Try:

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action SetField(persistent, 'chardb[i][0]', -3)

I've tried this one before but I didn't work, I'll give the function a try but I'm trying to make it only using screen code and avoiding python blocks, any other suggestion would be appreciated

[papiersam]

In my experience, I don't think you can edit the values in a two-dimensional array like that, simply by screen (left me stumped for a while). Your best bet is to try a function.

[Evildumdum]

I think you need the AddToSet function

[Kia]

In my experience, I don't think you can edit the values in a two-dimensional array like that, simply by screen (left me stumped for a while). Your best bet is to try a function.

as I checked, the problem is with modifying any kind of arrays(lists). I can change a variable with both "SetField" and "SetVariable" but as soon as I change the variable to an array it stops working, right now I am using the function solution but I was hoping to find out what's wrong with those two functions.

I think you need the AddToSet function

as far as I Know "AddToSet" appends the value to the end of the set, it will change the structure of the set and the code will break.