chessdog

chessdog is a chess program that runs directly inside your browser. It can easily be embedded into other websites via a simple JavaScript API.

Getting Started

Here is a complete example. Insert this into any HTML page and a chess board will appear:

<div id="board"></div>
<script type="text/javascript" src="http://chessdog.christophdietze.com/chessdog.js"></script>
<script type="text/javascript">
  var board = new chessdog.Board(document.getElementById("board"));
</script>

Let's dissect what this does:

1. Create a element where the board should be inserted, e.g.,

    <div id="board"></div>
   

2. Include the chessdog script

    <script type="text/javascript" src="http://chessdog.christophdietze.com/chessdog.js"></script>
   

3. Now, we can use the chessdog JavaScript API to create a chess board at the element. An iframe of a fixed size will be created as the child of the specified element.

    <script type="text/javascript">
      var board = new chessdog.Board(document.getElementById("board"));
    </script>
   

4. Additionally, the API provides the following functions:

    board.reset()
    board.getFen()
    board.setFen(String fenString)
    board.getPgn()
    board.setPgn(String pgnString)
    board.onReady(function func)
    board.allowUserMoves(boolean allowed)
   

Demos

• Board
• Two boards
• Board showing the Immortal Game read from PGN

Building from source

In order to build from source you will need sbt v0.11.

git clone [email protected]:thunderklaus/chessdog.git
cd chessdog
sbt package-war

After the build finished successfully, you can open a demo page at ./target/webapp/demo/JackEmbedDemo.html. The final war file will be in the target directory ./target/scala_xxx/.