bulletml-runner

   1 #!/usr/bin/env python
   2
   3 import os
   4 import sys
   5 import time
   6
   7 import pygame
   8
   9 import bulletml
  10
  11 def main(argv):
  12     if not argv:
  13         raise SystemExit("Usage: %s filename ..." % sys.argv[0])
  14
  15     pygame.display.init()
  16     screen = pygame.display.set_mode([600, 600], pygame.DOUBLEBUF)
  17     bullet = pygame.Surface([3, 3])
  18     bullet.fill([255, 0, 0])
  19     clock = pygame.time.Clock()
  20     target = bulletml.Bullet()
  21
  22     file_idx = 0
  23
  24     while True:
  25         filename = argv[file_idx % len(argv)]
  26         doc = bulletml.BulletML(open(filename, "rU"))
  27         source = bulletml.Bullet.FromDoc(
  28             doc, x=150, y=150, target=target, rank=0.5)
  29
  30         active = set([source])
  31         source.vanished = True
  32         print filename
  33         print "  Loaded %d top-level actions." % len(source._actions)
  34         frames = 0
  35         total = 0
  36         paused = False
  37         newfile = False
  38
  39         pygame.display.set_caption(os.path.basename(filename))
  40
  41         while active and not newfile:
  42             go = False
  43
  44             for event in pygame.event.get():
  45                 if event.type == pygame.QUIT:
  46                     raise SystemExit
  47                 elif event.type == pygame.KEYDOWN:
  48                     if event.key == pygame.K_SPACE:
  49                         paused ^= True
  50                     elif event.key == pygame.K_RIGHT:
  51                         go = True
  52                     elif event.key == pygame.K_PAGEUP:
  53                         file_idx -= 1
  54                         newfile = True
  55                     elif event.key == pygame.K_PAGEDOWN:
  56                         file_idx += 1
  57                         newfile = True
  58                     elif event.key == pygame.K_RETURN:
  59                         newfile = True
  60                     elif event.key == pygame.K_s:
  61                         source = bulletml.Bullet.FromDoc(
  62                             doc, x=150, y=150, target=target, rank=0.5)
  63                         source.vanished = True
  64                         active.add(source)
  65             target.x, target.y = pygame.mouse.get_pos()
  66             target.x /= 2
  67             target.y /= 2
  68
  69             if not paused or go:
  70
  71                 start = time.time()
  72                 count = len(active)
  73                 for obj in list(active):
  74                     new = obj.step()
  75                     total += len(new)
  76                     active.update(new)
  77                     if (obj.finished
  78                         or not (-50 < obj.x < 350)
  79                         or not (-50 < obj.y < 350)):
  80                         active.remove(obj)
  81                 elapsed = time.time() - start
  82
  83                 frames += 1
  84                 if frames % 100 == 0:
  85                     seconds_per_bullet = elapsed / count
  86                     bullets_per_second = count / elapsed
  87                     print "  Processing: %04d: %d bullets, %d active." % (
  88                         frames, total, count)
  89                     print "  %g seconds per bullet (60Hz max: %g)." % (
  90                         seconds_per_bullet, bullets_per_second / 60)
  91
  92             screen.fill([0, 0, 0])
  93             for obj in active:
  94                 try:
  95                     x, y = obj.x, obj.y
  96                 except AttributeError:
  97                     pass
  98                 else:
  99                     if not obj.vanished:
 100                         x *= 2
 101                         y *= 2
 102                         x -= 1
 103                         y -= 1
 104                         screen.blit(bullet, [x, y])
 105             clock.tick(60)
 106             pygame.display.flip()
 107
 108         print "  Finished: %04d: %d bullets." % (frames, total)
 109
 110 if __name__ == "__main__":
 111     main(sys.argv[1:])