Retrieve the number of the current floor

[MarcoMeter]

Is there a possibiity to print the current floor? I'd like to track the mean floor for my training statistics. The property _floor is set to None as long as floor() is not called.

[awjuliani]

Hi @MarcoMeter

This is currently not possible, unless you manually keep a tracker that increments every time a +1 reward is received. It makes a lot of sense though to have this more easily available. We can ensure that it is available as part of the observations in the Round 2 release.

[unixpickle]

Here's the wrapper I use for this. It adds the current floor to the info dictionary.

class FloorTrackEnv(gym.Wrapper):
    def __init__(self, env):
        super().__init__(env)
        self.floor = 0

    def reset(self, **kwargs):
        self.floor = 0
        return self.env.reset(**kwargs)

    def step(self, action):
        obs, rew, done, info = self.env.step(action)
        if rew == 1.0:
            self.floor += 1
        info['floor'] = self.floor
        return obs, rew, done, info

The above wrapper does not work if you manually change the starting floor. In that case, you can make a slight modification to the reset() method:

class FloorTrackEnv(gym.Wrapper):
    def __init__(self, env):
        super().__init__(env)
        self.floor = 0

    def reset(self, **kwargs):
        obs = self.env.reset(**kwargs)
        self.floor = self.unwrapped._floor
        return obs

    def step(self, action):
        obs, rew, done, info = self.env.step(action)
        if rew == 1.0:
            self.floor += 1
        info['floor'] = self.floor
        return obs, rew, done, info