It's extremely minor. Change the center of your circle from (320, 0) to (25,
25). The coordinates are with respect to self.image, not to screen.
-Christopher
On Mon, Sep 27, 2010 at 4:32 PM, kevin hayes <kevino...@gmail.com> wrote:
> Hi,
> This is my attempt at sending a circle(Sprite) vertically from the
> top of the screen to the bottom. Can someone
> tell me how to change the code so it works? Currently it is just creating
> a white screen. Thanks in advance. Kevin
>
> """Attempt at moving a circle(Sprite) from top(of screen) to bottom"""
>
> import pygame
> pygame.init()
>
> screen = pygame.display.set_mode((640, 480))
>
> class Circle(pygame.sprite.Sprite):
> def __init__(self):
> pygame.sprite.Sprite.__init__(self)
> self.image = pygame.Surface((50, 50))
> self.image.fill((255, 255, 255))
> #fill with white to hide square???
> pygame.draw.circle(self.image, (0, 0, 255), (320, 0), 25)
> self.rect = self.image.get_rect()
> self.rect.centerx = 320
> self.rect.centery = 0
>
> def update(self):
> self.rect.centery += 5
> if self.rect.top > screen.get_height():
> self.rect.bottom = 0
>
>
> def main():
> pygame.display.set_caption("Verticle Circle Sprite")
>
> background = pygame.Surface(screen.get_size())
> background.fill((255, 255, 255))
> screen.blit(background, (0, 0))
>
> circle = Circle()
> allSprites = pygame.sprite.Group(circle)
>
> clock = pygame.time.Clock()
> keepGoing = True
> while keepGoing:
> clock.tick(30)
> for event in pygame.event.get():
> if event.type == pygame.QUIT:
> keepGoing == False
>
> allSprites.clear(screen, background)
> allSprites.update()
> allSprites.draw(screen)
>
> pygame.display.flip()
>
> if __name__ == "__main__":
> main()
>
> pygame.quit()
>
>
