der-nico / elevator-problem

elevator-problem

The following repository contains the solution for a prototype of and elevator. The program simulates the behaviour of the elvator with given tasks

The following classes are defined

• Program: containing the main function
• Building: A basic building with a single elvator
• Elevator: The actual elevator
• Queue: The queue of the elevator containing all Commands currently not finsihed
• Commands: A command containing the information: id of the person, when it was requested, from where it was requested and where it should go

The input and output of the application is handeled by the ElevatorInputs and the ElevatorOutput classes each using the CSVInput and the CSVOutput classes as instances of the data. The required input is a .csv file where its path is conifgured in the App.config configuration with the ID of the person, the time of the initial button press, the floor from where it is requeste and where it should go to. After running the application the output is stored in a .csv defined in the configuration file. This output contains 4 comma separated columns: the time, a semicolonseparated list of people in the elevator, the current floor the elevator is at and a semicolon separted list of floors that are still requested (in the order they will be targeted). Currently the absolut path is set to "/Users/nicolasscharmberg/Projects/AVAMAE_elevator/AVAMAE_elevator" and the input file is called "data.csv" and the output file: "dataOut.csv".

The main application starts a timer in seconds that runs up and whenever either a new task is requested (from the csv input) or a task is finished (either picking someone up or dropping someone off) the state of the elvator is changed. This change contains move the elevator floor accordingly to the time add new task to the queue and start exectuing the next task.

In this prototype some additional output is printed to the screen. Everytime a task is finalised (the combination of picking up and dropping off) the total time spend on this task is shown. Additionally the time outside the elvator and the "minimal" exectuion time are printed. The minimal execution time is defined as the time it would take the levator to finish the task without considering any other tasks. See example below

Finished task for 46 in 48s (8s to pick up, minimal time=30)

Everytime the elvator stops at a floor the current state is printed (identical to the inforamtion store in the output .csv. See example below:

State: t=425, people id's=20, currentfloor=8, floorstogo=9, 8, 7, 6, 5, 10, 4, 3, 2

The executable of this prototype is in the path /bin/Release/netcoreapp3.1/AVAMAE_elevator.dll and can be executed with:

dotnet AVAMAE_elevator.dll