[Solved]Problem generating random number or using if statement... I'm not sure

[xixikudo]

What I want to do is, show different main menu background randomly (one of three pictures) everytime when entering the main menu.
I tried in gui.rpy like this:

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## Main and Game Menus #########################################################

## The images used for the main and game menus.

$bgr = random.randint(0, 2)

if bgr == 0:
    define gui.main_menu_background = "gui/main_menu_O.png"
    jump origin

if bgr == 1:
    define gui.main_menu_background = "gui/main_menu_R.png"
    jump origin

if bgr == 2:
    define gui.main_menu_background = "gui/main_menu_B.png"
    jump origin

label origin:
##define gui.main_menu_background = "gui/main_menu.png"
define gui.game_menu_background = "gui/game_menu.png"

The game will always show the last one (main_menu_B.png) as the background.
I also tried a renpy.random.randint(0, 2) fuction, but the game won't even make it to the main menu.

I know some C/C++ grammar, but I konw nothing about Python...


Or should I look into screen.rpy?

[Rayne]

gui.main_menu_background simply defines a picture that's later added to the main menu.

Find main_menu screen in screens.rpy, delete add gui.main_menu_background and add something like this:

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## Main Menu screen ############################################################
##
## Used to display the main menu when Ren'Py starts.
##
## https://www.renpy.org/doc/html/screen_special.html#main-menu

screen main_menu():

    ## This ensures that any other menu screen is replaced.
    tag menu

    style_prefix "main_menu"
    $ bgr = renpy.random.randint(0, 2)

    if bgr == 0:
        add "gui/main_menu_O.png"
    if bgr == 1:
        add "gui/main_menu_1.png"
    if bgr == 2:
        add "gui/main_menu_2.png"

That should work!

[xixikudo]

gui.main_menu_background simply defines a picture that's later added to the main menu.

Find main_menu screen in screens.rpy, delete add gui.main_menu_background and add something like this:

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## Main Menu screen ############################################################
##
## Used to display the main menu when Ren'Py starts.
##
## https://www.renpy.org/doc/html/screen_special.html#main-menu

screen main_menu():

    ## This ensures that any other menu screen is replaced.
    tag menu

    style_prefix "main_menu"
    $ bgr = renpy.random.randint(0, 2)

    if bgr == 0:
        add "gui/main_menu_O.png"
    if bgr == 1:
        add "gui/main_menu_1.png"
    if bgr == 2:
        add "gui/main_menu_2.png"

That should work!

I see! Thanks!

[Rayne]

Actually, here's something even better! You can replace all of these ifs with just this line:

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add "gui/main_menu_[bgr].png"

So it'll be:

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screen main_menu():

    ## This ensures that any other menu screen is replaced.
    tag menu

    style_prefix "main_menu"
    $ bgr = renpy.random.randint(0, 2)
    add "gui/main_menu_[bgr].png"

[kivik]

Just be mindful that originally xixikudo's image names have 0, B and R suffixes - which I know can be changed. However if you want to maintain the flexibility of different filenames, you can use renpy.random.choice:

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$ bgr = renpy.random.choice(['0', 'L', 'R'])