Re: [pygame] Moving sprites.

["René Dudfield" <renesd@xxxxxxxxx>]

make sprite.image use the same surface.

Surfaces are not copied by default.  You need to use the
Surface.copy() method to create a new one.

So just assigning the same surface will work for sharing one picture
with lots of sprites.


On Mon, Jul 28, 2008 at 9:33 AM, Paulo Silva <nitrofurano@xxxxxxxxx> wrote:
> you welcome! :-) - btw, i'm still trying to to on Pygame what i were
> doing on sdlBasic up to now
> (http://nitrofurano.linuxkafe.com/sdlbasic), stuff like how to get
> lots of sprites from just one picture, etc.
>
> ------
>
> On Mon, Jul 28, 2008 at 12:19 AM, Percival Kelley
> <percivalkelley@xxxxxxxxx> wrote:
>> Awesome. Thank you. That did the trick.
>>
>> On Sun, Jul 27, 2008 at 1:10 PM, Paulo Silva <nitrofurano@xxxxxxxxx> wrote:
>>>
>>> well, for now i were enjoying these ones
>>> http://www.cs.iupui.edu/~aharris/pygame/ch04/
>>>
>>> --------
>>>
>>> On Sun, Jul 27, 2008 at 11:38 PM,  <percivalkelley@xxxxxxxxx> wrote:
>>> > So I've read piman's tutorial and checked out a few others. I'm still
>>> > confused. I don't really understand the process of moving a sprite
>>> > around. I would like to use RenderUpdates and such, but I'm lost.
>>> >
>>> > I basically have a simple script that moves a ship around a background
>>> > (the background is an image.)
>>> >
>>> > To create the sprite I'm using:
>>> >
>>> > class Units(pygame.sprite.Sprite):
>>> >
>>> >        def __init__(self, img, loc1 = 250, loc2 = 250):
>>> >                pygame.sprite.Sprite.__init__(self) #start up sprites
>>> >
>>> >                #locs
>>> >                self.loc1 = loc1
>>> >                self.loc2 = loc2
>>> >
>>> >                #create sprite
>>> >                self.image, self.rect = load_image(img)
>>> >                self.rect.center = [self.loc1, self.loc2]
>>> >
>>> > I create the ship like this:
>>> > self.ship = Units('bship.png')
>>> > self.screen.blit(self.ship.image, self.ship.rect)
>>> >
>>> > To redraw the ship when it moves I'm using this:
>>> >
>>> > self.ship.loc1 = n1 #n1 and n2 are setup earlier in the code that
>>> > looks for key presses and sets the pixel difference
>>> > self.ship.loc2 = n2
>>> > self.ship.rect.center = [self.ship.loc1, self.ship.loc2]
>>> > print self.ship.rect.center
>>> > self.screen.blit(self.bg, (0,0))
>>> > self.screen.blit(self.ship.image, self.ship.rect.center)
>>> > pygame.display.flip()
>>> >
>>> > I'm really pretty confused at this point. I know I'm just doing
>>> > something stupid, but I haven't managed to get any other code working
>>> > to redraw the ship properly when it's moved. I don't have the code
>>> > from when I was doing it wrong, but basically, can someone point me in
>>> > the right direction to changing this over to just redraw the
>>> > appropriate areas?
>>> >
>>> > Thanks, and sorry this was rambling.
>>> >
>>
>>
>