[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

Re: [pygame] Moving sprites.



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.
>> >
>
>