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Blinker.py
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import time
from typing import Callable
from Condition import Condition, StateEntryDurationCondition, StateEntryCountCondition, AnyCondition, AlwaysTrueCondition
from finite_state_machine import FiniteStateMachine
from state import MonitoredState, State
from transition import ConditionalTransition, MonitoredTransition, Transition
from assembling_functions import assemble_state_transitions_and_timed_conditions
class Blinker(FiniteStateMachine):
StateGenerator = Callable[[], MonitoredState]
def __init__(self, off_state_generator: StateGenerator, on_state_generator: StateGenerator):
self.args_combinations = [
{'end_off', 'total_duration', 'cycle_duration'},
{'end_off', 'total_duration', 'n_cycles'},
{'end_off', 'n_cycles', 'cycle_duration'}
]
# self.off = assemble_state_transitions_and_conditions()
# 1-Create states and their custom fields
self.off = off_state_generator(self)
self.off._FSM_BLINKER_ON_STATE = False
self.on = on_state_generator(self)
self.on._FSM_BLINKER_ON_STATE = True
self.blink_on = on_state_generator(self)
self.blink_on._FSM_BLINKER_ON_STATE = True
self.blink_off = off_state_generator(self)
self.blink_off._FSM_BLINKER_ON_STATE = False
self.blink_begin = MonitoredState()
self.blink_begin._FSM_BLINKER_ON_STATE = None
self.blink_stop_begin = MonitoredState()
self.blink_stop_begin._FSM_BLINKER_ON_STATE = None
self.blink_stop_end = MonitoredState()
self.blink_stop_end._FSM_BLINKER_ON_STATE = None
self.off_duration = off_state_generator(self)
self.off_duration._FSM_BLINKER_ON_STATE = False
self.on_duration = on_state_generator(self)
self.on_duration._FSM_BLINKER_ON_STATE = True
self.blink_stop_off = off_state_generator(self)
self.blink_stop_off._FSM_BLINKER_ON_STATE = False
self.blink_stop_on = on_state_generator(self)
self.blink_stop_on._FSM_BLINKER_ON_STATE = True
blink_stop_off_to_blink_stop_end_n_cycles_condition = StateEntryCountCondition(1.0, self.blink_stop_off)
blink_stop_on_to_blink_stop_end_n_cycles_condition = StateEntryCountCondition(1.0, self.blink_stop_on)
self.blink_stop_on_or_off_to_blink_stop_end_condition = AnyCondition()
self.blink_stop_on_or_off_to_blink_stop_end_condition.add_condition(blink_stop_off_to_blink_stop_end_n_cycles_condition)
self.blink_stop_on_or_off_to_blink_stop_end_condition.add_condition(blink_stop_on_to_blink_stop_end_n_cycles_condition)
blink_stop_to_blink_stop_end_n_cycles = MonitoredTransition(self.blink_stop_end, self.blink_stop_on_or_off_to_blink_stop_end_condition)
self.blink_stop_off.add_transition(blink_stop_to_blink_stop_end_n_cycles)
self.blink_stop_on.add_transition(blink_stop_to_blink_stop_end_n_cycles)
self.on_duration_condition = assemble_state_transitions_and_timed_conditions(self.on_duration, self.off_duration)
self.off_duration_condition = assemble_state_transitions_and_timed_conditions(self.off_duration, self.on_duration)
self.blink_off_condition = assemble_state_transitions_and_timed_conditions(self.blink_off, self.blink_on)
self.blink_on_condition = assemble_state_transitions_and_timed_conditions(self.blink_on, self.blink_off)
self.blink_stop_on_to_blink_stop_off_condition = assemble_state_transitions_and_timed_conditions(self.blink_stop_on, self.blink_stop_off)
self.blink_stop_off_to_blink_stop_on_condition = assemble_state_transitions_and_timed_conditions(self.blink_stop_off, self.blink_stop_on)
# self.blink_stop_on_or_off_to_blink_stop_end_condition = assemble_state_transitions_and_timed_conditions(self.blink_stop_off, self.blink_stop_end)
# self.blink_stop_on_or_off_to_blink_stop_end_condition = assemble_state_transitions_and_timed_conditions(self.blink_stop_on, self.blink_stop_end)
self.blink_stop_begin_total_duration_condition = assemble_state_transitions_and_timed_conditions(self.blink_stop_begin, self.blink_stop_end)
# 5-Create layout
layout = FiniteStateMachine.Layout()
# 6-Add states to layout
layout.initial_state = self.off
layout.add_states([self.off, self.on, self.blink_begin, self.blink_on, self.blink_off, self.blink_stop_begin, self.blink_stop_end, self.blink_stop_off, self.blink_stop_on])
# 7-Add the starting state
self.current_state = layout.initial_state
# Create FSM
super().__init__(layout=layout, unitialized=False)
@property
def is_on(self) -> bool:
return self.current_state._FSM_BLINKER_ON_STATE is True
@property
def is_off(self) -> bool:
return self.current_state._FSM_BLINKER_ON_STATE is False
def turn_off(self, **kwargs):
if kwargs.keys() == {'duration'}:
self.off_duration_condition.duration = kwargs['duration']
self.transit_to(self.off_duration)
else:
self.transit_to(self.off)
def turn_on(self, **kwargs):
if kwargs.keys() == {'duration'}:
self.on_duration_condition.duration = kwargs['duration']
self.transit_to(self.on_duration)
else:
self.transit_to(self.on)
def blink(self, percent_on:float=0.5, begin_on:bool=True, **kwargs):
# Arg checking and variable initialization
if not isinstance(begin_on, bool):
raise TypeError("begin_on must be a boolean")
if percent_on < 0 or percent_on > 1:
raise ValueError("percent_on must be between 0 and 1")
if not isinstance(begin_on, bool):
raise TypeError("begin_on must be a boolean")
if kwargs.keys().__contains__('cycle_duration'):
if kwargs['cycle_duration'] <= 0:
raise ValueError("cycle_duration must be greater than zero")
if kwargs.keys().__contains__('total_duration'):
if kwargs['total_duration'] <= 0:
raise ValueError("total_duration must be greater than zero")
if kwargs.keys().__contains__('n_cycles'):
if kwargs['n_cycles'] <= 0:
raise ValueError("n_cycles must be greater than zero")
if kwargs.keys().__contains__('end_off'):
if not isinstance(kwargs['end_off'], bool):
raise TypeError("end_off must be a boolean")
# Overloads
if kwargs.keys() == {'cycle_duration'}:
cycle_duration = kwargs['cycle_duration']
self.blink_on_condition.duration = cycle_duration * percent_on
self.blink_off_condition.duration = cycle_duration - self.blink_on_condition.duration
if begin_on:
self.transit_to(self.blink_on)
else:
self.transit_to(self.blink_off)
elif kwargs.keys() in self.args_combinations:
cycle_duration = None
if kwargs.keys() == {'end_off', 'total_duration', 'cycle_duration'}:
end_off, total_duration, cycle_duration = kwargs['end_off'], kwargs['total_duration'], kwargs['cycle_duration']
elif kwargs.keys() == {'end_off', 'total_duration', 'n_cycles'}:
end_off, total_duration, n_cycles = kwargs['end_off'], kwargs['total_duration'], kwargs['n_cycles']
cycle_duration = total_duration / n_cycles
elif kwargs.keys() == {'end_off', 'n_cycles', 'cycle_duration'}:
end_off, n_cycles, cycle_duration = kwargs['end_off'], kwargs['n_cycles'], kwargs['cycle_duration']
total_duration = n_cycles * cycle_duration
self.blink_stop_on_to_blink_stop_off_condition.duration = cycle_duration * percent_on
self.blink_stop_off_to_blink_stop_on_condition.duration = cycle_duration - self.blink_stop_on_to_blink_stop_off_condition.duration
self.blink_stop_begin_total_duration_condition.duration = total_duration
# TODO -> Demander au prof a propos de la logique du total duration
if begin_on:
self.blink_stop_begin.add_transition(ConditionalTransition(self.blink_stop_on, AlwaysTrueCondition()))
else:
self.blink_stop_begin.add_transition(ConditionalTransition(self.blink_stop_off, AlwaysTrueCondition()))
if end_off:
self.blink_stop_end.add_transition(ConditionalTransition(self.off, AlwaysTrueCondition()))
else:
self.blink_stop_end.add_transition(ConditionalTransition(self.on, AlwaysTrueCondition()))
self.transit_to(self.blink_stop_begin)
if __name__ == "__main__":
def off_state_generator():
state = MonitoredState()
state.add_in_state_action(lambda: print("Off"))
return state
def on_state_generator():
state = MonitoredState()
state.add_in_state_action(lambda: print("On"))
return state
blinker = Blinker(off_state_generator, on_state_generator)
# blinker.blink(0.5, True, cycle_duration=1.0)
blinker.blink( cycle_duration=10.0, percent_on=0.5, end_off=True, n_cycles=10)
# blinker.turn_off(duration=2.0)
for _ in range(10000000):
blinker.track()