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Dominion

A bare-bones simulator and visualizer for the card game Dominion in JavaScript. Simulator can be run headless from command-line with node.js or in the browser. Visualization powered by React.

Currently only supports standard cards. Card descriptions can be found here.

Run

Browser

http-server from root directory. That's it.

Command Line

The simulation can be run headless from the command line. Run

ts-node cli.js

The --help flag will give you available options.

To run the visualization, start up a web server from this directory, for example run http-server. See building instructions on building the bundle first.

Building

Shared files (between browser and Node) can be found in the /src directory. Build the bundle for browser with browserify.

yarn build

Supported Cards

  • Adventurer
  • Bureaucrat
  • Cellar
  • Chancellor
  • Chapel
  • Council Room
  • Feast
  • Festival
  • Gardens
  • Laboratory
  • Library
  • Market
  • Mine
  • Moneylender
  • Remodel
  • Smithy
  • Spy
  • Thief
  • Village
  • Witch
  • Woodcutter
  • Workshop

Unsupported Cards

  • Moat
  • Militia
  • Throne Room

Adding New Cards

See initCards function in src/game.js.

Strategies

I hand-coded a few AI strategies to test against the human opponent. Descriptions below. You can find the code in player-strategies.js.

Big Money

Each turn, buy a province if you can afford it. Otherwise, buy gold or silver. If cannot afford either of those, buy nothing.

Smart Big Money

Same as "Big Money", but buy Duchies near the end.

Smart Duchy

  • always go for province when you have 8
  • always go for duchy when you have 5
  • always go for smithy when you have 4
  • always go for silver when you have 3
  • go for gold when you have 6, if there are 4 or more provinces

Smart Smithy

???

Big Money Smithy

???

Lint & Test

yarn install
yarn lint
yarn test

Uses

  • play dominion against computer opponent(s)
  • simulate strategies over large number of iterations to see their effectiveness

Implementation Details

  • written in JavaScript, with Angular framework and Bootstrap for prettiness
  • uses Underscore library for shuffling cards (Fisher-Yates shuffle)