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6332d4f113
`contains` really should not exist when it does exactly what the builtin magic method `__contains__` was meant for, but that would break backward compatibility.
20 lines
689 B
Python
20 lines
689 B
Python
import gym
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import numpy as np
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class MultiDiscrete(gym.Space):
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def __init__(self, nvec):
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"""
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nvec: vector of counts of each categorical variable
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"""
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self.nvec = np.asarray(nvec, dtype=np.int32)
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gym.Space.__init__(self, (self.nvec.shape,), np.int8)
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def sample(self):
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return (gym.spaces.np_random.random_sample(self.nvec.shape) * self.nvec).astype(self.dtype)
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def contains(self, x):
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return (0 <= x).all() and (x < self.nvec).all() and x.dtype.kind in 'ui'
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def to_jsonable(self, sample_n):
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return [sample.tolist() for sample in sample_n]
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def from_jsonable(self, sample_n):
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return np.array(sample_n)
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