/*  BitBoardAnalyzer - A interface for classes, that analyze the position                     on BitBoards.  Copyright (C) 2003 The Java-Chess team <info@java-chess.de>  This program 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 2  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, write to the Free Software  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.*/package de.java_chess.javaChess.engine;import de.java_chess.javaChess.*;import de.java_chess.javaChess.bitboard.*;/** * This interface has to be implemented by any class, that * that analyses a BitBoard type chess game position. */public interface BitBoardAnalyzer {    // Static variables.    /**     * A draw.     */    short DRAW = 0;    /**     * A board, where the white king is in chess.     */    short BLACK_WIN = -100;    /**     * A board, where the black king is in chess.     */    short WHITE_WIN = -BLACK_WIN;    /**     * A board, where the white king is checkmate.     */    short BLACK_HAS_WON = Short.MIN_VALUE;    /**     * A board, where the black king is checkmate.     */    short WHITE_HAS_WON = Short.MAX_VALUE;        // Methods    /**     * Get the currently analyzed board.     *     * @return The currently analyzed board.     */    BitBoard getBoard();    /**     * Set a new board to be analyzed.     *     * @param board The new board.     */    void setBoard( BitBoard board);    /**     * Set the flag, if white is about to move.     *     * @param white Flag to indicate, if white has the     *              next move.     */    void setMoveRight( boolean white);    /**     * Test if a king is in check.     *     * @param white true, if the white king is checked, false otherwise.     */    boolean isInCheck( boolean white);    /**     * Test if a king is in check on a given board.     *     * @param board The board to test.     * @param white true, if the white king is checked, false otherwise.     */    boolean isInCheck( BitBoard board, boolean white);        /**     * Analyze the current board.     */    short analyze();    /**     * Analyzed a new board.     *     * @param board The new board to analyze.     * @param white Flag to indicate, if white has the next move.     */    short analyze( BitBoard board, boolean white);}