Description: For this assignment, you will write several Python classes to simulate an elevator.
Details: Your simple elevator simulator will control a single elevator in a building. You will implement two strategies: a default strategy and one that you design. The default strategy is very straightforward: the elevator starts at a random oor, travels to the top oor, reverses direction and continues until all passengers have been picked up and dropped o . You should track the number of oors the elevator travels to service all requests. Note that passengers only get on the elevator when it is traveling in the direction of their desired oor.
The following will help you design your code:
Implement three classes: Building, Elevator, and Passenger. See below for more details.
Your program will prompt the user to enter the number of oors in the building and the number of passengers. The inputs should be veri ed as valid (positive integers). If they are invalid, the user should be asked to re-enter them.
1
Each passenger is on a oor chosen at random. Their destination oor is also chosen at random.
Each passenger rides the elevator exactly one time.
Every time the elevator moves you will print a representation of the building showing every oor and all of the passengers on that oor including those waiting for the elevator and those that have already exited the elevator.
The simulation ends when all passengers have reached their destination oors. Do not use any global variables.
The Classes: Each of the three classes will have the data attributes and methods listed below. You may add others.
Class
Attribute/Method
Description
Building
num
oors
Number of oors in the building
passenger
list
List of passengers
elevator
The building’s elevator (object)
run(self)
Method that operates the elevator
output(self)
Prints the building
Elevator
num
oors
Number of oors in the building
register
list
List of customers in the elevator
curr
oor
Current oor the elevator is on
direction
Direction of travel
move(self)
Method to move the elevator one oor
reg
pass(self, passenger)
Passenger enters elevator
exit
pass(self, passenger)
Passenger exits elevator
Passenger
src
oor
Passenger’s starting oor
dest
oor
Passenger’s destination oor
direction
Passenger’s director of travel
id
Passenger’s ID
in
elevator
Indicates if passenger is in elevator
done
Indicates if passenger arrived and exited
2
Adhere to common coding conventions and comment your code.. Include a comment at the top that looks like this:
#
• CS 224 Spring 2019
• Programming Assignment 3
•
• Your wonderful, pithy, erudite description of the assignment.
•
• Author: Your name here
• Date: March 13, 2019
#
Submission: The name of your program must be otis.py. Submit your solution as a compressed directory by 11:59 PM on the due date. In addition to the program, you must submit a README le that describes your elevator strategy and compares its performance to that of the default strategy.
3
