old_contents: #!/usr/bin/env python
  
  from ookoobah import core
  from ookoobah import utils
  
  game = core.Game()
  
  utils.populate_grid_from_string(game.grid, """
      ######
      #>..\#
      #.#..#
      #....#
      #.\./#
      ######
  """)
  
  game.start()
  for n in range(10):
      print utils.dump_grid_to_string(game.grid, game.ball)
      game.step()
  
new_contents: #!/usr/bin/env python
  
  from ookoobah import core
  from ookoobah import utils
  
  game = core.Game()
  
  utils.populate_grid_from_string(game.grid, """
      ######
      #>..\#
      #.#..#
      #....#
      #.\./#
      ######
  """)
  
  game.start()
  print "hit <enter> to render next; ^C to abort"
  while True:
      print utils.dump_grid_to_string(game.grid, game.ball)
      game.step()
      raw_input()
  
subject: Make the core dumper interactive