Hi,
This program creates a circle and moves it diagonally across
the screen. I'm having trouble understanding how to use the Circle class to
make Four circles (one on each corner), each going diagonally across the
screen in a different direction. I've really hit a wall. Can someone show
me how to add to this to have more than one circle?
import pygame
pygame.init()
screen = pygame.display.set_mode((640, 480))
class Circle(pygame.sprite.Sprite):
def __init__(self, color):
pygame.sprite.Sprite.__init__(self)
self.image = pygame.Surface((50, 50))
self.image.fill((255, 255, 255))
pygame.draw.circle(self.image, (color), (25, 25), 25)
self.rect = self.image.get_rect()
self.rect.center = (0, 0)
self.dx = 5
self.dy = 5
def update(self):
self.rect.centerx += self.dx
self.rect.centery += self.dy
if self.rect.right > screen.get_width():
self.rect.left = 0
if self.rect.top > screen.get_height():
self.rect.bottom = 0
def main():
pygame.display.set_caption("Diagonal Circle")
background = pygame.Surface(screen.get_size())
background.fill((255, 255, 255))
screen.blit(background, (0, 0))
circle1 = Circle(pygame.color.Color("yellow"))
allSprites = pygame.sprite.Group(circle1)
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()
