wehub-resource-sync
34 lines
905 B
Python
34 lines
905 B
Python
import random
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import gymnasium as gym
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from gymnasium.spaces import Discrete
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class RepeatInitialObsEnv(gym.Env):
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"""Env in which the initial observation has to be repeated all the time.
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Runs for n steps.
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r=1 if action correct, -1 otherwise (max. R=100).
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"""
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def __init__(self, episode_len=100):
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self.observation_space = Discrete(2)
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self.action_space = Discrete(2)
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self.token = None
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self.episode_len = episode_len
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self.num_steps = 0
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def reset(self, *, seed=None, options=None):
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self.token = random.choice([0, 1])
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self.num_steps = 0
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return self.token, {}
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def step(self, action):
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if action == self.token:
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reward = 1
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else:
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reward = -1
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self.num_steps += 1
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done = truncated = self.num_steps >= self.episode_len
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return 0, reward, done, truncated, {}
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