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Elevator Implementation with Threads
import time
import threading
class Elevator:
def __init__(self, control, timer=Timer(), eventlog=EventLog()):
self.control = control
self.timer = timer
self.eventlog = eventlog
#Python thinks it's a dict if you
#initialize an empty set
self.floors_to_visit = {1}
self.floors_to_visit.remove(1)
self.min_floor = 1
self.max_floor = 1
self.current_floor = 1
self.action_log = []
self.on= True
threading.Timer(self.timer.interval, self.keep_it_moving).start()
def go_to_floor(self, floor):
self.log(f"Stop requested for floor {floor}")
self.floors_to_visit.add(floor)
self.max_floor = max(self.floors_to_visit)
self.min_floor = min(self.floors_to_visit)
def keep_it_moving(self):
if self.floors_to_visit:
if len(self.floors_to_visit) == 1 and self.current_floor in self.floors_to_visit:
self.floors_to_visit.remove(self.current_floor)
self.open_doors()
time.sleep(self.timer.interval)
elif self.max_floor > self.current_floor:
self.up_1_floor()
else:
self.down_1_floor()
if self.on:
threading.Timer(self.timer.interval, self.keep_it_moving).start()
def up_1_floor(self):
self.control.hoist_motor("up")
self.current_floor += 1
self.log(message=f"On floor {self.current_floor}")
self.handle_making_a_stop()
def down_1_floor(self):
self.control.hoist_motor("down")
self.current_floor -= 1
self.log(f"On floor {self.current_floor}")
self.handle_making_a_stop()
def handle_making_a_stop(self):
if self.current_floor in self.floors_to_visit:
self.log(f"Stopping at floor {self.current_floor}")
self.stop()
self.open_doors()
self.floors_to_visit.remove(self.current_floor)
if self.floors_to_visit:
self.max_floor = max(self.floors_to_visit)
self.min_floor = min(self.floors_to_visit)
def stop(self):
self.control.stop_motor()
def open_doors(self):
self.log(f"Opening doors at floor {self.current_floor}")
self.control.open_door()
self.log(f"DOORS CLOSING")
self.control.close_door()
def log(self, message):
self.action_log.append(message)
self.eventlog.register(message)
print(message)
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