def main():
# Parse arguments
argparser = argparse.ArgumentParser()
argparser.add_argument('-g', '--graphics', action="store_true")
flags = argparser.parse_args()
# Let there be light! (create an N-particle universe)
universe = Universe(N_PARTICLES)
print universe
# Create graphics
if flags.graphics and graphics_imported:
graph = Graphics(universe, GRAPHICS_DIR)
graph.save_plot()
# Incremenent time
for i in xrange(50):
print 'Computing step', i+1
universe.increment_time()
if flags.graphics and graphics_imported:
graph.save_plot()
