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- 'use strict';
- const React = require('react');
- const GameStore = require('../stores/GameStore');
- const GameActions = require('../actions/GameActions');
- const ChessPieces = require('../constants/ChessPieces');
- const onGameChange = require('../mixins/onGameChange');
- const maybeReverse = require('../mixins/maybeReverse');
- const omit = require('lodash.omit');
- const cx = require('classnames');
- const Immutable = require('immutable');
- const {Seq, Repeat, List} = Immutable;
- const FILES = Seq.Indexed('abcdefgh');
- const RANKS = Seq.Indexed('12345678');
- const Chessboard = React.createClass({
-
- propTypes: {
- io: React.PropTypes.object.isRequired,
- token: React.PropTypes.string.isRequired,
- maybePlaySound: React.PropTypes.func.isRequired,
- color: React.PropTypes.oneOf(['white', 'black']).isRequired,
- gameOver: React.PropTypes.bool.isRequired,
- isOpponentAvailable: React.PropTypes.bool.isRequired
- },
- mixins: [React.addons.PureRenderMixin, maybeReverse],
- getInitialState() {
- const state = GameStore.getChessboardState();
- return {
- fen: state.fen,
- moveFrom: null,
- lastMove: state.lastMove
- };
- },
- componentDidMount() {
- const {io, token} = this.props;
- GameStore.on('change', this._onGameChange);
- GameStore.on('new-move', this._onNewMove);
- io.on('move', data => {
- GameActions.makeMove(data.from, data.to, data.capture, false);
- this.props.maybePlaySound();
- if (!data.gameOver) {
- this._runClock();
- }
- });
- io.on('rematch-confirmed', () => this.setState({moveFrom: null}));
- },
- componentWillUnmount() {
- GameStore.off('change', this._onGameChange);
- GameStore.on('new-move', this._onNewMove);
- },
- render() {
- const {color, isOpponentAvailable, gameOver} = this.props;
- const fenArray = this.state.fen.split(' ');
- const placement = fenArray[0];
- const isItMyTurn = fenArray[1] === color.charAt(0);
- const rows = this._maybeReverse(placement.split('/'));
- const ranks = this._maybeReverse(RANKS, 'white');
- return (
- <table className="chessboard">
- {rows.map((placement, i) =>
- <Row
- key={i}
- rank={ranks.get(i)}
- placement={placement}
- color={color}
- isMoveable={isItMyTurn && isOpponentAvailable && !gameOver}
- moveFrom={this.state.moveFrom}
- lastMove={this.state.lastMove}
- setMoveFrom={this._setMoveFrom} />)}
- </table>
- );
- },
- _onGameChange(cb) {
- const state = GameStore.getChessboardState();
- this.setState({
- fen: state.fen,
- lastMove: state.lastMove
- }, cb);
- },
- _setMoveFrom(square) {
- this.setState({
- moveFrom: square
- });
- },
- _onNewMove(move) {
- const {io, token} = this.props;
- io.emit('new-move', {
- token: token,
- move: move
- });
- setTimeout(this.props.maybePlaySound, 0);
- },
- _runClock() {
- const {io, token, color} = this.props;
- io.emit('clock-run', {
- token: token,
- color: color
- });
- }
- });
- const Row = React.createClass({
- propTypes: {
- rank: React.PropTypes.oneOf(['1','2','3','4','5','6','7','8']).isRequired,
- placement: React.PropTypes.string.isRequired,
- color: React.PropTypes.oneOf(['white', 'black']).isRequired,
- isMoveable: React.PropTypes.bool.isRequired,
- moveFrom: React.PropTypes.string,
- lastMove: React.PropTypes.object,
- setMoveFrom: React.PropTypes.func.isRequired
- },
- mixins: [maybeReverse],
- render() {
- const {rank, placement, color} = this.props;
- const files = this._maybeReverse(FILES);
- const pieces = this._maybeReverse(placement.length < 8 ?
- Seq(placement).flatMap(piece => (
- /^\d$/.test(piece) ? Repeat('-', parseInt(piece, 10)) : piece
- )).toArray() :
- placement.split('')
- );
- return (
- <tr>
- {pieces.map((piece, i) =>
- <Column
- key={i}
- square={files.get(i) + rank}
- piece={piece}
- {...omit(this.props, 'rank', 'placement')} />)}
- </tr>
- );
- }
- });
- const Column = React.createClass({
- propTypes: {
- square: React.PropTypes.string.isRequired,
- piece: React.PropTypes.string.isRequired,
- color: React.PropTypes.oneOf(['white', 'black']).isRequired,
- isMoveable: React.PropTypes.bool.isRequired,
- moveFrom: React.PropTypes.string,
- lastMove: React.PropTypes.object,
- setMoveFrom: React.PropTypes.func.isRequired
- },
- render() {
- const {moveFrom, lastMove, square} = this.props;
- const piece = ChessPieces[this.props.piece];
- return piece ?
- <td className={cx({
- selected: moveFrom === square,
- to: lastMove.get('to') === square
- })}>
- <a onClick={this._onClickSquare}>
- {piece}
- </a>
- </td> :
- <td className={lastMove.get('from') === square ? 'from' : null}
- onClick={this._onClickSquare} />;
- },
- _onClickSquare() {
- const {isMoveable, color, moveFrom, square, piece} = this.props;
- const rgx = color === 'white' ? /^[KQRBNP]$/ : /^[kqrbnp]$/;
- if (!isMoveable || (!moveFrom && !rgx.test(piece)))
- return;
- else if (moveFrom && moveFrom === square)
- this.props.setMoveFrom(null);
- else if (rgx.test(piece))
- this.props.setMoveFrom(square);
- else
- GameActions.makeMove(moveFrom, square, ChessPieces[piece], true);
- }
- });
- module.exports = Chessboard;
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