Run one thread worth of the environment with agents.

def run_thread(agent_classes, players, map_name, visualize):
  """Run one thread worth of the environment with agents."""
  with sc2_env.SC2Env(
      map_name=map_name,
      players=players,
      agent_interface_format=sc2_env.parse_agent_interface_format(
          feature_screen=FLAGS.feature_screen_size,
          feature_minimap=FLAGS.feature_minimap_size,
          rgb_screen=FLAGS.rgb_screen_size,
          rgb_minimap=FLAGS.rgb_minimap_size,
          action_space=FLAGS.action_space,
          use_feature_units=FLAGS.use_feature_units),
      step_mul=FLAGS.step_mul,
      game_steps_per_episode=FLAGS.game_steps_per_episode,
      disable_fog=FLAGS.disable_fog,
      visualize=visualize) as env:
    env = available_actions_printer.AvailableActionsPrinter(env)
    agents = [agent_cls() for agent_cls in agent_classes]
    run_loop.run_loop(agents, env, FLAGS.max_agent_steps, FLAGS.max_episodes)
    if FLAGS.save_replay:
      env.save_replay(agent_classes[0].__name__)