123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243 |
- import React from 'react/addons';
- import omit from 'lodash.omit';
- import cx from 'classnames';
- import {Seq, Repeat, List, Set} from 'immutable';
- import GameStore from '../stores/GameStore';
- import GameActions from '../actions/GameActions';
- import ChessPieces from '../constants/ChessPieces';
- import onGameChange from '../mixins/onGameChange';
- import maybeReverse from '../mixins/maybeReverse';
- 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,
- kingInCheck: false
- };
- },
- 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();
- }
- if (document.hidden) {
- let title = document.getElementsByTagName('title')[0];
- title.text = '* ' + title.text;
- window.addEventListener('focus', this._removeAsteriskFromTitle);
- }
- });
- io.on('rematch-accepted', () => this.setState({moveFrom: null}));
- },
- componentWillUnmount() {
- GameStore.off('change', this._onGameChange);
- GameStore.on('new-move', this._onNewMove);
- },
- render() {
- const {color, isOpponentAvailable, gameOver} = this.props;
- const {fen, moveFrom, lastMove, kingInCheck} = this.state;
- const fenArray = 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={moveFrom}
- lastMove={lastMove}
- setMoveFrom={this._setMoveFrom}
- kingInCheck={kingInCheck}
- validMoves={GameStore.getValidMoves(moveFrom)} />)}
- </table>
- );
- },
- _onGameChange(cb) {
- const state = GameStore.getChessboardState();
- this.setState({
- fen: state.fen,
- lastMove: state.lastMove,
- kingInCheck: state.check && (state.fen.split(' ')[1] === 'w' ? 'K' : 'k')
- }, 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
- });
- },
- _removeAsteriskFromTitle() {
- let title = document.getElementsByTagName('title')[0];
- title.text = title.text.replace('* ', '');
- window.removeEventListener('focus', this._removeAsteriskFromTitle);
- }
- });
- 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,
- kingInCheck: React.PropTypes.oneOf([false, 'K', 'k']).isRequired,
- validMoves: React.PropTypes.instanceOf(Set).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$/.test(piece) ? Repeat('-', parseInt(piece, 10)) : piece
- )).toArray() :
- placement.split('')
- );
- return (
- <tr>
- {pieces.map((piece, i) =>
- <Column
- key={i}
- square={files.get(i) + rank}
- piece={piece}
- {...omit(this.props, 'rank', 'placement')} />)}
- </tr>
- );
- }
- });
- const Column = React.createClass({
- propTypes: {
- square: React.PropTypes.string.isRequired,
- piece: React.PropTypes.string.isRequired,
- color: React.PropTypes.oneOf(['white', 'black']).isRequired,
- isMoveable: React.PropTypes.bool.isRequired,
- moveFrom: React.PropTypes.string,
- lastMove: React.PropTypes.object,
- setMoveFrom: React.PropTypes.func.isRequired,
- kingInCheck: React.PropTypes.oneOf([false, 'K', 'k']).isRequired,
- validMoves: React.PropTypes.instanceOf(Set).isRequired
- },
- render() {
- const {moveFrom, lastMove, square, color,
- isMoveable, kingInCheck, validMoves} = this.props;
- const piece = ChessPieces[this.props.piece];
- const rgx = color === 'white' ? /^[KQRBNP]$/ : /^[kqrbnp]$/;
- const isDraggable = rgx.test(this.props.piece);
- const isDroppable = moveFrom && validMoves.has(square);
- return (
- <td className={cx({
- selected: moveFrom === square && !validMoves.isEmpty(),
- from: lastMove.get('from') === square,
- to: lastMove.get('to') === square,
- droppable: isDroppable
- })}
- onClick={!piece ? this._onClickSquare : null}
- onDragOver={isDroppable ? this._onDragOver : null}
- onDrop={isDroppable ? this._onDrop : null}>
- {piece ?
- <a className={kingInCheck === this.props.piece ? 'in-check' : null}
- onClick={this._onClickSquare}
- onDragStart={this._onDragStart}
- draggable={isDraggable && isMoveable}>
- {piece}
- </a>
- :null}
- </td>
- );
- },
- _onClickSquare() {
- const {isMoveable, color, moveFrom, square, piece} = this.props;
- const rgx = color === 'white' ? /^[KQRBNP]$/ : /^[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);
- },
- _onDragStart(e) {
- e.dataTransfer.effectAllowed = 'move';
- // setData is required by firefox
- e.dataTransfer.setData('text/plain', '');
- this.props.setMoveFrom(this.props.square);
- },
- _onDragOver(e) {
- e.preventDefault();
- e.dataTransfer.dropEffect = 'move';
- },
- _onDrop(e) {
- e.preventDefault();
- const {moveFrom, square, piece} = this.props;
- GameActions.makeMove(moveFrom, square, ChessPieces[piece], true);
- }
- });
- export default Chessboard;
|