Tractor (拖拉机)

Multiplayer online tractor game. Try it at https://util.in:8096.

Features:

Engine implements the full ruleset and allows only valid plays
Supports variable number of players and variable number of decks
Supports find-a-friend version
Supports leading with a set of top cards (special "does-it-fly" plays)
Supports take-backs
Sound notifications on your turn
Shows the currently winning player in each trick
View the previous trick
Automatic card drawing during the draw phase
AI players

The engine follows the ruleset and terminology here.

Quickstart

npm install
npm run build
./gradlew run

Go to http://localhost:8080.

Development

Backend

The backend is a Java Dropwizard server. The files are in the standard Gradle Java layout, with production files in src/main/java. Assets are served from src/main/resources/assets. The in-game communications are JSON-serialized messages sent to and received from clients via websocket using the Atmosphere framework.

Run either ./gradlew eclipse or ./gradlew idea to setup the project in Eclipse or IntelliJ (respectively), and then run the entry point, TractorServer.java.

Frontend

The frontend is a single-page React app in plain Javascript. The assets live in client/assets, self-contained React components live in client/components, library code (no React) live in client/lib, and the top-level view components live in client/views.

To start the dev server, run:

npm install
npm run start