1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | """ Sample fractal using recursion. Sample Python/Pygame Programs Simpson College Computer Science"""import pygame# Define some colorsblack = (0, 0, 0)white = (255, 255, 255)green = (0, 255, 0)red = (255, 0, 0)def recursive_draw(x, y, width, height, count): # Draw the rectangle # pygame.draw.rect(screen,black,[x,y,width,height],1) pygame.draw.line(screen, black, [x + width*.25, height // 2 + y], [x + width*.75, height // 2 + y], 3) pygame.draw.line(screen, black, [x + width * .25, (height * .5) // 2 + y], [x + width * .25, (height * 1.5) // 2 + y], 3) pygame.draw.line(screen, black, [x + width * .75, (height * .5) // 2 + y], [x + width * .75, (height * 1.5) // 2 + y], 3) if count > 0: count -= 1 # Top left recursive_draw(x, y, width // 2, height // 2, count) # Top right recursive_draw(x + width // 2, y, width // 2, height // 2, count) # Bottom left recursive_draw(x, y + width // 2, width // 2, height // 2, count) # Bottom right recursive_draw(x + width // 2, y + width // 2, width // 2, height // 2, count)pygame.init()# Set the height and width of the screensize = [700, 700]screen = pygame.display.set_mode(size)pygame.display.set_caption("My Game")# Loop until the user clicks the close button.done = False# Used to manage how fast the screen updatesclock = pygame.time.Clock()# -------- Main Program Loop -----------while not done: for event in pygame.event.get(): if event.type == pygame.QUIT: done = True # Set the screen background screen.fill(white) # ALL CODE TO DRAW SHOULD GO BELOW THIS COMMENT fractal_level = 3 recursive_draw(0, 0, 700, 700, fractal_level) # ALL CODE TO DRAW SHOULD GO ABOVE THIS COMMENT # Go ahead and update the screen with what we've drawn. pygame.display.flip() # Limit to 20 frames per second clock.tick(20)# Be IDLE friendly. If you forget this line, the program will 'hang'# on exit.pygame.quit() |