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| <?php | |
| /** | |
| * This file is a part of ChessBrowser. | |
| * | |
| * ChessBrowser is free software: you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License as published by | |
| * the Free Software Foundation, either version 3 of the License, or | |
| * (at your option) any later version. | |
| * | |
| * This program is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| * GNU General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU General Public License | |
| * along with this program. If not, see <https://www.gnu.org/licenses/>. | |
| * | |
| * @file ChessSquare | |
| * @ingroup ChessBrowser | |
| * @author DannyS712 | |
| */ | |
| namespace MediaWiki\Extension\ChessBrowser; | |
| class NotationAnalyzer { | |
| /** @var string */ | |
| private $notation; | |
| /** | |
| * @param string $notation | |
| */ | |
| public function __construct( string $notation ) { | |
| $this->notation = $notation; | |
| } | |
| /** | |
| * Get the rank the piece started on | |
| * | |
| * @return int|null | |
| */ | |
| public function getFromRank() { | |
| $notation = preg_replace( "/^.+(\d).+\d.*$/s", '$1', $this->notation ); | |
| if ( strlen( $notation ) > 1 ) { | |
| return null; | |
| } | |
| return ( (int)$notation - 1 ) * 16; | |
| } | |
| /** | |
| * Get the file the piece started on | |
| * | |
| * @return int|null | |
| */ | |
| public function getFromFile() { | |
| $notation = preg_replace( "/^.*([a-h]).*[a-h].*$/s", '$1', $this->notation ); | |
| if ( strlen( $notation ) > 1 ) { | |
| return null; | |
| } | |
| return ChessSquare::FILE_TO_NUMBER[$notation]; | |
| } | |
| /** | |
| * Get the target square | |
| * | |
| * @return int|string | |
| */ | |
| public function getTargetSquare() { | |
| $notation = preg_replace( "/.*([a-h][1-8]).*/s", '$1', $this->notation ); | |
| try { | |
| $square = ChessSquare::newFromCoords( $notation ); | |
| return $square->getNumber(); | |
| } catch ( ChessBrowserException $e ) { | |
| return ''; | |
| } | |
| } | |
| /** | |
| * Get the piece type making the move | |
| * | |
| * @param string $color | |
| * @return int | |
| */ | |
| public function getPieceType( string $color ): int { | |
| $notation = $this->notation; | |
| if ( $notation === 'O-O-O' || $notation === 'O-O' ) { | |
| $pieceType = 'K'; | |
| } else { | |
| $token = $notation[0]; | |
| $pieceType = preg_match( "/[NRBQK]/", $token ) ? $token : 'P'; | |
| } | |
| $pieceType = ( new ChessPiece( $pieceType ) )->getAsHex(); | |
| if ( $color === 'black' ) { | |
| $pieceType += 8; | |
| } | |
| return $pieceType; | |
| } | |
| /** | |
| * Get the promotion | |
| * | |
| * If the notation token contains an equal sign then it's a promotion | |
| * | |
| * @return string | |
| */ | |
| public function getPromotion(): string { | |
| $notation = $this->notation; | |
| if ( strpos( $notation, '=' ) !== false ) { | |
| $piece = preg_replace( "/^.*?=([QRBN]).*$/", '$1', $notation ); | |
| return strtolower( $piece ); | |
| } | |
| if ( preg_match( "/[a-h][18][NBRQ]/", $notation ) ) { | |
| $notation = preg_replace( "/[^a-h18NBRQ]/s", "", $notation ); | |
| return strtolower( $notation[-1] ); | |
| } | |
| return ''; | |
| } | |
| } |