Python Elevator

elevator.py

# elevator.py

from random import randint
# from SimpleXMLRPCServer import SimpleXMLRPCServer # Python 2
from xmlrpc.server import SimpleXMLRPCServer # Python 3

MAX_FLOOR = 10
current_floor = 0
server = SimpleXMLRPCServer(("localhost", 8000), logRequests=False)

def elevator_request():
    from_floor = randint(1, MAX_FLOOR)
    to_floor = randint(1, MAX_FLOOR)
    if randint(0, 10) > 8 and from_floor != to_floor:
        print("Someone on floor #%i requested to go to floor #%i" % (from_floor, to_floor))
        return (from_floor, to_floor)

    return False
server.register_function(elevator_request)

def validate(floor):
    global current_floor
    if (current_floor == floor or floor == current_floor + 1 or floor == current_floor - 1) and (floor >= 0 or floor <= MAX_FLOOR):
        print('\x1b[5;30;42m' + 'Elevator moved from ' + str(current_floor) + ' to ' + str(floor) + '\x1b[0m')
        current_floor = floor
        return True
    else:
        print('\x1b[6;37;41m' + 'Invalid move to ' + str(floor) + ', elevator is currently on ' + str(current_floor) + '\x1b[0m')
        return False
server.register_function(validate)

def reset():
    global current_floor
    current_floor = 0
    return True
server.register_function(reset)


print('\x1b[5;30;47m' + 'People are ready to use the elevator!' + '\x1b[0m')
server.serve_forever()

people.py

import time
# import xmlrpclib # Python 2
from xmlrpc import client # Python 3

#client = xmlrpclib.ServerProxy('http://localhost:8000') # Python 2
elevator_client = client.ServerProxy('http://localhost:8000') # Python 3

requests = []
tick = 0

while True:
    print("Tick %i" % tick)

    req = elevator_client.elevator_request()
    if req:
        print("Someone on floor #%i requested to go to floor #%i" % (req[0], req[1]))
        requests.append(req)

    tick = tick + 1
    time.sleep(1)