This is an implemention of Conway's Game of Life. It has a WEB frontend and a python backend, communicating with websockets. You can check for the online demo.
The game world is in size of 50 by 50, and cyclic, i.e. opposit sides are considered as connected. I intended to make it 500 by 500 at first, and then found out it will be too small on screen for observation, and too slow with a naive backend implemention. Since this is only a demo, I choose to quickly finish the job, and improve it later if really necessary.
Just run docker-compose up, and see it at http://localhost:8080.
In order to run, you should first start the server:
py src/api/app.py
If there is a problem, check if these packages are installed:
pip install websockets
Then open src/ui/index.html in your browser. Note that random color is generated for browsers at first connection to the backend, and then saved to localStorage. So if you want to replace your color, you can clear local storages and refresh the page.
Run build.bat to prepare the dist folder. Copy everything inside to /var/www/game-of-life-py.
Serve the frontend in an existing, ssl secured nginx website:
location /game-of-life-py {
alias /var/www/game-of-life-py/ui;
try_files $uri index.html =404;
}
Create a daemon service for backend(/etc/systemd/system/game-of-life.service)
[Unit]
Description=Game of Life Backend
[Service]
WorkingDirectory=/var/www/game-of-life-py/api
ExecStart=/usr/bin/python3.8 /var/www/game-of-life-py/api/app.py
Restart=always
# Restart service after 10 seconds if the service crashes:
RestartSec=10
KillSignal=SIGINT
SyslogIdentifier=python3-gameoflife
User=www-data
Environment=ASPNETCORE_ENVIRONMENT=Production
Environment=DOTNET_PRINT_TELEMETRY_MESSAGE=false
[Install]
WantedBy=multi-user.target
Enable and start the service
sudo systemctl enable game-of-life.service
sudo systemctl start game-of-life.service
Expose the backend to the public web securely via ngnix:
location /ws/gameoflifepy {
proxy_pass http://127.0.0.1:5678;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
# WebSocket support
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $http_connection;
}
Check https://yousite.com/game-of-life-py and celebrate.
Copy docker-compose-publish.yml to your server, rename it to docker-compose.yml, run docker-compose up. You can also set up a service in the way described in the Serve API section without docker.
Expose the services to public web securely via ngnix:
location ~ ^/game-of-life-py(/?)(.*) {
proxy_pass http://127.0.0.1:8080/$2$is_args$args;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}
location /ws/gameoflifepy {
proxy_pass http://127.0.0.1:5678;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header Host $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
# WebSocket support
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $http_connection;
}
Check https://yousite.com/game-of-life-py and celebrate.