diff options
Diffstat (limited to 'data/graphics/lines')
| -rw-r--r-- | data/graphics/lines | 146 |
1 files changed, 74 insertions, 72 deletions
diff --git a/data/graphics/lines b/data/graphics/lines index bb67a34..5699719 100644 --- a/data/graphics/lines +++ b/data/graphics/lines @@ -1,6 +1,8 @@ # lines: make lots of lines on the screen -import pippy, pygame, sys +import pippy +import pygame +import sys from pygame.locals import * from random import * @@ -18,84 +20,84 @@ screen = pygame.display.set_mode() size = width, height = screen.get_size() # start the screen all black -screen.fill((0,0,0)) +screen.fill((0, 0, 0)) # we need starting endpoints for the line and seed motion vectors -start=[randint(0,size[0]), randint(0,size[1])] -end =[randint(0,size[0]), randint(0,size[1])] +start = [randint(0, size[0]), randint(0, size[1])] +end = [randint(0, size[0]), randint(0, size[1])] # randomize the motion, 1..3 in each direction, positive or negative, but # never 0 -mvect_start = [choice((-1,1)) * randint(1,3), choice((-1,1)) * randint(1,3)] -mvect_end = [choice((-1,1)) * randint(1,3), choice((-1,1)) * randint(1,3)] +mvect_start = [choice((-1, 1)) * randint(1, 3), choice((-1, 1)) * randint(1, 3)] +mvect_end = [choice((-1, 1)) * randint(1, 3), choice((-1, 1)) * randint(1, 3)] # start with a random color and color direction -color = [randint(0,255), randint(0,255), randint(0,255)] -direction = [choice((-1,1)), choice((-1,1)), choice((-1,1))] +color = [randint(0, 255), randint(0, 255), randint(0, 255)] +direction = [choice((-1, 1)), choice((-1, 1)), choice((-1, 1))] while pippy.pygame.next_frame(): - for event in pygame.event.get(): - if event.type == QUIT: - sys.exit() - - elif event.type == KEYDOWN: - sys.exit() - - # draw the line using the current values and width=3 - pygame.draw.line(screen, color, start, end, 3) - - # update the display - pygame.display.flip() - - # update the end points and the color - for i in range(2): - start[i] = start[i] + mvect_start[i] - end[i] = end[i] + mvect_end[i] - - for i in range(3): - color[i] = color[i] + direction[i] - - # check if anything has gone out of range and - # if so, bring back to edge and reverse the - # corresponding motion vector - if start[0] < 0 : - start[0] = 0 - mvect_start[0] = -1 * mvect_start[0] - elif start[0] >= size[0] : - start[0] = size[0] - 1 - mvect_start[0] = -1 * mvect_start[0] - - if start[1] < 0 : - start[1] = 0 - mvect_start[1] = -1 * mvect_start[1] - elif start[1] >= size[1] : - start[1] = size[1] - 1 - mvect_start[1] = -1 * mvect_start[1] - - if end[0] < 0 : - end[0] = 0 - mvect_end[0] = -1 * mvect_end[0] - elif end[0] >= size[0] : - end[0] = size[0] - 1 - mvect_end[0] = -1 * mvect_end[0] - - if end[1] < 0 : - end[1] = 0 - mvect_end[1] = -1 * mvect_end[1] - elif end[1] >= size[1] : - end[1] = size[1] - 1 - mvect_end[1] = -1 * mvect_end[1] - - for i in range(3) : - if color[i] < 0: - color[i] = 0 - direction[i] = direction[i] * -1 - elif color[i] >= 255 : - color[i] = 255 - direction[i] = direction[i] * -1 - - # randomly change the color directon on occasion - if randint(0,511) == 128: - for i in range(3): - direction[i] = choice((-1,1)) + for event in pygame.event.get(): + if event.type == QUIT: + sys.exit() + + elif event.type == KEYDOWN: + sys.exit() + + # draw the line using the current values and width=3 + pygame.draw.line(screen, color, start, end, 3) + + # update the display + pygame.display.flip() + + # update the end points and the color + for i in range(2): + start[i] = start[i] + mvect_start[i] + end[i] = end[i] + mvect_end[i] + + for i in range(3): + color[i] = color[i] + direction[i] + + # check if anything has gone out of range and + # if so, bring back to edge and reverse the + # corresponding motion vector + if start[0] < 0: + start[0] = 0 + mvect_start[0] = (-1) * mvect_start[0] + elif start[0] >= size[0]: + start[0] = size[0] - 1 + mvect_start[0] = (-1) * mvect_start[0] + + if start[1] < 0: + start[1] = 0 + mvect_start[1] = (-1) * mvect_start[1] + elif start[1] >= size[1]: + start[1] = size[1] - 1 + mvect_start[1] = (-1) * mvect_start[1] + + if end[0] < 0: + end[0] = 0 + mvect_end[0] = (-1) * mvect_end[0] + elif end[0] >= size[0]: + end[0] = size[0] - 1 + mvect_end[0] = (-1) * mvect_end[0] + + if end[1] < 0: + end[1] = 0 + mvect_end[1] = (-1) * mvect_end[1] + elif end[1] >= size[1]: + end[1] = size[1] - 1 + mvect_end[1] = (-1) * mvect_end[1] + + for i in range(3): + if color[i] < 0: + color[i] = 0 + direction[i] = direction[i] * (-1) + elif color[i] >= 255: + color[i] = 255 + direction[i] = direction[i] * (-1) + + # randomly change the color directon on occasion + if randint(0, 511) == 128: + for i in range(3): + direction[i] = choice((-1, 1)) |