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Group 9's Repository

Covey.Town

Covey.Town provides a virtual meeting space where different groups of people can have simultaneous video calls, allowing participants to drift between different conversations, just like in real life. Covey.Town was built for Northeastern's Spring 2021 software engineering course, and is designed to be reused across semesters. You can view our reference deployment of the app at app.covey.town.

Covey.Town Architecture

The figure above depicts the high-level architecture of Covey.Town. The frontend client (in the frontend directory of this repository) uses the PhaserJS Game Library to create a 2D game interface, using tilemaps and sprites. The frontend implements video chat using the Twilio Programmable Video API, and that aspect of the interface relies heavily on Twilio's React Starter App.

A backend service (in the services/roomService directory) implements the application logic: tracking which "towns" are available to be joined, and the state of each of those towns.

Running this app locally

Running the application locally entails running both the backend service and a frontend.

Setting up the backend

To run the backend, you will need a Twilio account. Twilio provides new accounts with $15 of credit, which is more than enough to get started. To create an account and configure your local environment:

  1. Go to Twilio and create an account. You do not need to provide a credit card to create a trial account.
  2. Create an API key and secret (select "API Keys" on the left under "Settings")
  3. Create a .env file in the services/roomService directory, setting the values as follows:
Config Value Description
TWILIO_ACCOUNT_SID Visible on your twilio account dashboard.
TWILIO_API_KEY_SID The SID of the new API key you created.
TWILIO_API_KEY_SECRET The secret for the API key you created.
TWILIO_API_AUTH_TOKEN Visible on your twilio account dashboard.

Starting the backend

Once your backend is configured, you can start it by running npm start in the services/roomService directory (the first time you run it, you will also need to run npm install). The backend will automatically restart if you change any of the files in the services/roomService/src directory.

Configuring the frontend

Create a .env file in the frontend directory, with the line: REACT_APP_TOWNS_SERVICE_URL=http://localhost:8081 (if you deploy the rooms/towns service to another location, put that location here instead)

Running the frontend

In the frontend directory, run npm start (again, you'll need to run npm install the very first time). After several moments (or minutes, depending on the speed of your machine), a browser will open with the frontend running locally. The frontend will automatically re-compile and reload in your browser if you change any files in the frontend/src directory.

INSTRUCTIONS FOR LAUNCHING OUR TEXT CHAT FEATURE

Our feature is directly built into the existing covey.town frontend/services folders. Following the instructions for configuring and launching the existing frontend and backend results in it being deployed correctly. You can interact with it alongside the covey.town game screen, but it will not display if your browser window is too small.