Re: [pygame] main game object using singleton/global/static?

[Michael George <mdgeorge@xxxxxxxxxxxxxx>]

Because python modules are just like classes, I tend to avoid the 
singleton pattern in python and simply use module-level variables.  For 
example, in my game I have:

---globals.py---

import pygame
pygame.display.init()
screen = pygame.display.set_size(...)

# a handful other commonly used variables, such as font, background, etc

---game.py---

from globals import screen, ...

I don't know if this pattern is encouraged, but I've found it a good way 
to organize my game.

--Mike


Jake b wrote:
> Summery:
> How do I organize my data structures to read or pass my Game() object 
> in ship.py ?
>
> Here is Pseudo code of what i'm talking about:
> http://pastebin.com/m985fe2f
>
> Long:
>
> How do you use your 'game' class? I created one class that handles 
> screen creation, game main loop, list of Sprites, etc... But I'm not 
> sure on how I should access the game members.
>
> In Ship.draw() I have a couple of potential examples, where the one 
> i'm using right now is:
> self.screen.blit(self.image)
> (It saves a reference to Game.screen)
>
> But, this requires me to create my objects inside of Game(), passing a 
> reference to the game instance every time a sprite is created, like so:
> # def Game.spawn():
> self.sprites.add( Ship( self ) )
>
> This seems wrong/hackish to me. Is there a way I can have a (semi?) 
> global function / method? Or should I do this?
>
> I didn't want to make 'screen' a global variable, because I want 
> access to Game(), since there are multiple members/methods I need 
> access to. 
>
> Another example: of a function that needs access to game members: This 
> is called in ship.py when the sprite is spawned.
>
> # def Game.randLoc(self):
> """returns random location that exists in boundries of current map"""
> return randint( 0, self.map.width ), randint( 0, self.map.height)
>
> --
> Jake