76 lines
1.9 KiB
Python
76 lines
1.9 KiB
Python
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#!/usr/bin/python3
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from random import randint, random, choice
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class Choice:
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def __init__(self, **data):
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""" stores a dict.
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the keys are strings that indicate the next state,
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the values are lists that store the possible emissions in transition to that new state.
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"""
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self.data = data
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self.new_states = list(self.data.keys())
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def choose(self):
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new_state = choice(self.new_states)
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emission = choice(self.data[new_state])
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return new_state, emission
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class SingleArgChoice:
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def __init__(self, kwarg):
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if len(kwarg) != 1:
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raise ValueError(
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f"{self.__class__.__name__} takes exactly one keyword argument!"
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)
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for self.next_state, self.value in kwarg.items():
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pass
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class RandInt(SingleArgChoice):
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def __init__(self, **kwarg):
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super().__init__(kwarg)
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assert len(self.value) == 2
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assert type(self.value[0]) == int
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assert type(self.value[1]) == int
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self.minimum = self.value[0]
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self.maximum = self.value[1]
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def choose(self):
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number = randint(self.minimum, self.maximum)
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return self.next_state, f"{number} "
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class FixedText(SingleArgChoice):
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def __init__(self, **kwarg):
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super().__init__(kwarg)
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self.text = self.value
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def choose(self):
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return self.next_state, self.text
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class Network:
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def __init__(self, **choices):
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""" takes a dict,
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the keys are strings that name states,
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the values are the choices for new states and emissions possible in these states.
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the 'start' state and the 'stop' state have their respective special roles.
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"""
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self.choices = choices
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self.recursion_warning = 100
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def choose(self):
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state = 'start'
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emissions = []
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states = [state]
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while state != 'stop':
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state, emission = self.choices[state].choose()
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emissions.append(emission)
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states.append(states)
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if len(emissions) > self.recursion_warning:
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raise RecursionError(
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"there are over a hundred emissions. probably a bug!"
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)
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return emissions, states
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