Re: [pygame] Split screen question (newbie)

[Casey Duncan <casey@xxxxxxxxxxx>]

On Nov 21, 2007, at 11:19 AM, Miguel Sicart wrote:

> Hi all,
>
> Thanks a lot for the help!
> Ok, so what I am interested in doing is sort of artsy-fartsy little  
> videogames (think Rob Humble's The Marriage), and this is one of  
> them: top of the screen, player one will be doing one thing  
> (collecting items, destroying items); bottom of the screen, player  
> two will be doing other things (putting items together). And that  
> is it, more or less :)
> Now, the problem is that I am to game programming what military  
> music is to music, so I don't want to go into tiling or scrolling  
> backgrounds (but hey, I'd love to learn more about tiling at some  
> moment!).
> My intuition was very much towards Casey and Ian's comments - two  
> subsurfaces where I can draw. Question is, I have no idea how to  
> practically do that.
> I do the screen the classic way, I think
> screen = pygame.display.set_mode()
> and then a background:
> background = pygame.Surface(screen.get_size())

Then do something like:

top_rect = screen.get_rect()
top_rect.height = top_rect.height / 2
top_screen = screen.subsurface(top_rect)
bot_rect = top_rect.move(0, top_rect.height)
bot_screen = screen.subsurface(bot_rect)

Now use top_screen to draw into the top and bot_screen to draw into  
the bottom. You flip the main screen surface as usual to see the  
result since drawing to top_screen and bot_screen actual just draws  
into different positions of screen.

for example, try:

top_screen.fill((255,0,0))
bot_screen.fill((0,0,255))
pygame.display.flip()

-Casey