Run the agent, connecting to a (remote) host started independently.

def agent():
  """Run the agent, connecting to a (remote) host started independently."""
  agent_module, agent_name = FLAGS.agent.rsplit(".", 1)
  agent_cls = getattr(importlib.import_module(agent_module), agent_name)

  logging.info("Starting agent:")
  with remote_sc2_env.RemoteSC2Env(
      map_name=FLAGS.map,
      host=FLAGS.host,
      host_port=FLAGS.host_port,
      lan_port=FLAGS.lan_port,
      name=FLAGS.agent_name or agent_name,
      race=sc2_env.Race[FLAGS.agent_race],
      step_mul=FLAGS.step_mul,
      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),
      visualize=FLAGS.render) as env:
    agents = [agent_cls()]
    logging.info("Connected, starting run_loop.")
    try:
      run_loop.run_loop(agents, env)
    except remote_sc2_env.RestartException:
      pass
  logging.info("Done.")