How do I detect aspect ratio and change resolution?

[Steamgirl]

Hello!

I'd like to support 2 different aspect ratios - widescreen and 4:3 in my game, but I don't know how to:

a) Toggle between them.
b) Detect whether the user has a widescreen display.

Any ideas?

[Kia]

edit: I was way off ^_^

[xela]

Try:

in options.rpy:

Code: Select all

init python hide:
    info = renpy.display.info
    width, height = info.current_w, info.current_h
    if round(float(width)/height, 2) == 1.78:
        config.screen_width, config.screen_height = 1280, 720
    elif round(float(width)/height, 2) == 1.33:
        config.screen_width, config.screen_height = 800, 600
    else:
        raise Exception("Get a Monitor with 16:9 or 4:3 resolutions to play this game!") # Or pick a default ;)

You'll also have to make sure all game elements/resources are structured in way that can support both without displacement. That said, you can place a lot more checks trying to get resolution info from APIs getting it directly from the OS in an unlikely case that PyGame failed to log it in for some reason. Google what to use for every OS and check if Ren'Pys Python has the required modules. Obviously you can always have a default to revert to in the else clause...

I didn't try the code so there could be some spelling errors, but the approach should be sound enough.

*And keep in mind that Ren'Py scales it's window reasonably well. Sometimes having a bit of black space on the sides/top+bottom in fullscreen mode is preferable to messing with resolutions, in my opinion it's always the case unless you're making an expensive commercial game of some sorts.

[PyTom]

That last bit of code seems terrible - 16:10 monitors are common, and I had a 5:4 monitor once.

[xela]

LoL

That's what the slimy face was for

[Jibus]

Bump on this.

This code seems perfect me, but i have an error when i launch the application :

AttributeError: 'NoneType' object has no attribute for 'current_w'

It seems that the function returns nothing.

[xela]

It worked at the time of this post, this is not directly exposed to developers so there is a chance that something was changed internally or you are on an OS that doesn't return anything meaningful to pygame for whatever reason. You can try accessing os directly or figure out why you info is None now.

Something like this may still get it from pygame, I guess it was changed at some point and moved to interface class:

Code: Select all

init python:
    import pygame
    meow = pygame.display.init()
    meow = pygame.display.Info()
    width, height = meow.current_w, meow.current_h
    if round(float(width)/height, 2) == 1.78:
        config.screen_width, config.screen_height = 1280, 720
    elif round(float(width)/height, 2) == 1.33:
        config.screen_width, config.screen_height = 800, 600
    else:
        config.screen_width, config.screen_height = 800, 600

[Jibus]

Works perfectly ! Thanks !