How can I get incomplete subtasks in the play mode?

[IsaacXu0808]

I try to use STRIPSWorld.get_subtasks to check the incomplete subtasks (given the arglist and recipes from the env) in the GamePlay after each keyboard event, just like in RealAgent. But it always shows all the subtasks instead of the incomplete subtasks. So, how should I get incomplete subtasks in the play mode?

Modification in main.py:

game = GamePlay(env.filename, env.world, env.sim_agents, env.recipes, env.arglist)

Modifications In GamePlay.py

def __init__(self, filename, world, sim_agents, recipes, arglist):
      self.recipes = recipes
      self.arglist = arglist
...
if event.key in KeyToTuple.keys():
      action = KeyToTuple[event.key]
      self.current_agent.action = action
      interact(self.current_agent, self.world)
      # After a movement
      sw = STRIPSWorld(world=self.world, recipes=self.recipes)
      subtasks = sw.get_subtasks(max_path_length=self.arglist.max_num_subtasks)
      all_subtasks = [subtask for path in subtasks for subtask in path]
      print('Subtasks:', all_subtasks, '\n')

Finding incomplete subtasks in Agent.py:

def get_subtasks(self, world):
      self.sw = STRIPSWorld(world, self.recipes)
      # [path for recipe 1, path for recipe 2, ...] where each path is a list of actions.
      subtasks = self.sw.get_subtasks(max_path_length=self.arglist.max_num_subtasks)
      all_subtasks = [subtask for path in subtasks for subtask in path]
      return all_subtasks
...
def setup_subtasks(self, env):
        self.incomplete_subtasks = self.get_subtasks(world=env.world)
        self.delegator = BayesianDelegator(
                agent_name=self.name,
                all_agent_names=env.get_agent_names(),
                model_type=self.model_type,
                planner=self.planner,
                none_action_prob=self.none_action_prob)

Sample output in the console (the returned subtasks never change even if dishes are delivered):

Delivered Plate-ChoppedTomato!
Subtasks: [Merge(Lettuce, Plate), Deliver(Lettuce-Plate-Tomato), Merge(Tomato, Plate), Merge(Lettuce, Plate-Tomato), Merge(Tomato, Lettuce-Plate), Merge(Tomato, Lettuce), Chop(Tomato), Chop(Lettuce), Merge(Lettuce-Tomato, Plate)]

Subtasks: [Merge(Lettuce, Plate), Deliver(Lettuce-Plate-Tomato), Merge(Tomato, Plate), Merge(Lettuce, Plate-Tomato), Merge(Tomato, Lettuce-Plate), Merge(Tomato, Lettuce), Chop(Tomato), Chop(Lettuce), Merge(Lettuce-Tomato, Plate)]

Subtasks: [Merge(Lettuce, Plate), Deliver(Lettuce-Plate-Tomato), Merge(Tomato, Plate), Merge(Lettuce, Plate-Tomato), Merge(Tomato, Lettuce-Plate), Merge(Tomato, Lettuce), Chop(Tomato), Chop(Lettuce), Merge(Lettuce-Tomato, Plate)]