/*  PieceImpl - A class to implement the functionality of a chess piece.  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.piece;/** * This class implements the functionality for a piece. */public class PieceImpl implements Piece {    // Instance variables    /**     * The color and type of a piece.     */    private byte _typeColor;        // Constructors    /**     * Create a new piece instance.     *     * @param typeColor The color and type of piece, with color in bit 0      *                  and the type color in bit 1-3.     */    public PieceImpl( byte typeColor) {	_typeColor = typeColor;    }    /**     * Create a new Piece instance from type and color.     *     * @param type The type of the piece.     * @param color The color of the piece.     */    public PieceImpl( byte type, byte color) {	this( (byte)((type << 1) + color));    }    // Methods    /**     * Get the type of this piece.     *     * @return The type of this piece.     */    public final byte getType() {	return (byte)(_typeColor >> 1);    }    /**     * Set the type of this piece.     *     * @param type The type of this piece as defined as      *             constants in the Piece interface.     */    public final void setType( byte type) {	_typeColor &= (byte)1;	_typeColor |= (type << 1);    }    /**     * Get the color of this piece.     *     * @return The color of this piece.     */    public final byte getColor() {	return (byte)(_typeColor & (byte)1);    }    /**     * Set the color of this piece.     *     * @param The new color of this piece.     */    public final void setColor( byte color) {	_typeColor &= (byte)14;	_typeColor |= color;    }    /**     * Check, if this piece is white.     *     * @return true, if this piece is white, false if black.     */    public final boolean isWhite() {	return (_typeColor & 1) != 0;    }    /**     * Get type and color as 1 byte.     *     * @return Type and color and 1 byte.     */    public final byte getTypeAndColor() {	return _typeColor;    }}