[SOLVED] Is it possible to make a sprite gallery using SetScreenVariable?

[lacrimoosa]

I'm attempting to make an outfit/sprite gallery inside of my game's regular gallery. In theory, I'm trying to make it so that clicking on arrows next to the sprite causes a different variation of the sprite to pop up in place of the sprite already there like so:

so far I have added and initialized a variable so I know which sprite to show

Code: Select all

default aliceOutfit = 0

but when I try to increment/decrement the variable using this as the action on the "next" button-

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SetScreenVariable("aliceOutfit", += 1)

I just get an error saying the syntax is invalid.

I figure there has to be a way to do this, whether with or without SetScreenVariable() or something else. If anyone knows an easier or correct way to go about this, it would be a great help! I've searched about to see if anyone had posted about making a sprite gallery but I couldn't find anything.

[gas]

The easier thing that come to my mind is to use a DEQUE (a special list that have stack functions) and a Function() action.

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init python:
    from collections import deque

default dress_list = deque(range(3)) # here three dresses.

# bla bla bla the screen
textbutton "Next" action Function("set_dress",1)
textbutton "Prev" action Function("set_dress",-1)

init python:
    def set_dress(amount):
        dress_list.rotate(amount)
        return True

Now, dress_list[0] is always the value of the dress to show.

[lacrimoosa]

The easier thing that come to my mind is to use a DEQUE (a special list that have stack functions) and a Function() action.

Code: Select all

init python:
    from collections import deque

default dress_list = deque(range(3)) # here three dresses.

# bla bla bla the screen
textbutton "Next" action Function("set_dress",1)
textbutton "Prev" action Function("set_dress",-1)

init python:
    def set_dress(amount):
        dress_list.rotate(amount)
        return True

Now, dress_list[0] is always the value of the dress to show.

Thank you! That is exactly the thing I had in mind! I knew about stacks because of general OOP knowledge, but I had no idea how to work it with ren'py syntax.