org/homelinux/largo/games/board/chessboard/ChessBoard.java
author Markus Bröker <mbroeker@largo.homelinux.org>
Sat, 13 Dec 2008 13:41:38 +0100
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/**
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 *   $Id: ChessBoard.java 152 2008-04-27 02:04:31Z mbroeker $
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 *  $URL: http://localhost/svn/eclipse/Schachspiel/trunk/org/homelinux/largo/games/board/chessboard/ChessBoard.java $
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 */
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package org.homelinux.largo.games.board.chessboard;
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import java.awt.Image;
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import org.homelinux.largo.games.board.Board;
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import org.homelinux.largo.games.board.Piece;
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import org.homelinux.largo.utils.ImgComponent;
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public class ChessBoard extends Board {
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	static final long serialVersionUID = 140208;
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	static final int ROOK = 1;
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	static final int KNIGHT = 2;
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	static final int BISHOP = 3;
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	static final int QUEEN = 4;
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	static final int KING = 5;
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	static final int PAWN = 6;
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	final Piece white_queen = new Piece(new ImgComponent("images/white_queen.png").getImage(),
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					"white", QUEEN, 90);
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	final Piece black_queen = new Piece(new ImgComponent("images/black_queen.png").getImage(), 
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					"black", QUEEN, 90);
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	boolean white_rochades_small;
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	boolean white_rochades_big;
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	boolean black_rochades_small;
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	boolean black_rochades_big;
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	void initBoard () {
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		add (new ImgComponent ("images/black_rook.png").getImage (), 0, "black", ROOK);
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		add (new ImgComponent ("images/black_knight.png").getImage (), 1, "black", KNIGHT);
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		add (new ImgComponent ("images/black_bishop.png").getImage (), 2, "black", BISHOP);
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		add (new ImgComponent ("images/black_queen.png").getImage (), 3, "black", QUEEN);
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		add (new ImgComponent ("images/black_king.png").getImage (), 4, "black", KING);
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		add (new ImgComponent ("images/black_bishop.png").getImage (), 5, "black", BISHOP);
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		add (new ImgComponent ("images/black_knight.png").getImage (), 6, "black", KNIGHT);
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		add (new ImgComponent ("images/black_rook.png").getImage (), 7, "black", ROOK);
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		for (int i = 0; i < 8; i++)
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			add (new ImgComponent ("images/black_pawn.png").getImage (), 8 + i, "black", PAWN);
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		add (new ImgComponent ("images/white_rook.png").getImage (), 56, "white", ROOK);
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		add (new ImgComponent ("images/white_knight.png").getImage (), 57, "white", KNIGHT);
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		add (new ImgComponent ("images/white_bishop.png").getImage (), 58, "white", BISHOP);
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		add (new ImgComponent ("images/white_queen.png").getImage (), 59, "white", QUEEN);
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		add (new ImgComponent ("images/white_king.png").getImage (), 60, "white", KING);
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		add (new ImgComponent ("images/white_bishop.png").getImage (), 61, "white", BISHOP);
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		add (new ImgComponent ("images/white_knight.png").getImage (), 62, "white", KNIGHT);
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		add (new ImgComponent ("images/white_rook.png").getImage (), 63, "white", ROOK);
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		for (int i = 0; i < 8; i++)
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			add (new ImgComponent ("images/white_pawn.png").getImage (), 55 - i, "white", PAWN);
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	}
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	/**
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	 * The init method initializes a complete chess board with figures and a history.
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	 */
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	public void init() {
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		super.init();
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		initBoard();
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		board_pieces = getPieces();
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		repaint();
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	}
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	public ChessBoard (int w, int h) {
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		super(w, h);
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	}
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	void add (Image img, int i, String c, int t) {
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		int v = 0;
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		switch (t) {
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		case ROOK:
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			v = 40;
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			break;
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		case KNIGHT:
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			v = 30;
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			break;
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		case BISHOP:
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			v = 30;
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			break;
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		case QUEEN:
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			v = 90;
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			break;
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		case KING:
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			v = 500;
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			break;
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		case PAWN:
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			v = 10;
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			break;
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		}
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		setPiece(i, new Piece(img, c, t, v));
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	}
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	/**
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	 * returns true, when the white king is at pieces[i]
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	 */
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	public boolean isWhiteKing(int i) {
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		if ( isWhite(i) && getType(i) == KING)
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			return true;
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		return false;
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	}
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	/**
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	 * returns true, when the black king is at pieces[i]
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	 */
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	public boolean isBlackKing(int i) {
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		if ( isBlack(i) && getType(i) == KING)
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			return true;
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		return false;
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	}
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	/**
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	 * Returns the score of the current position
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	 * Every field controlled by [color] gives one point
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	 * A King, controlled by [color], gives 10 extra points
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	 */
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	public int controls(String color) {
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		int t, o;
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		int value = 0;
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		for ( o=0;o<64;o++) {
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			if (color.equals(getColor(o))) {
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				for (t=0;t<64;t++) {
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					if(validMove(t, o)) {
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						if ( getType(t) == KING )
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							value+=10;
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						value++;
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					}
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				}
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			}
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		}
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		return value;
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	}
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	/**
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	 * Checks, wether this move is possible or not.
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	 */
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	public boolean validMove (int t, int o) {
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		int steps;
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		int rows;
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		int dx;
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		/* Must be here */
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		white_rochades_small = false;
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		white_rochades_big = false;
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		black_rochades_small = false;
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		black_rochades_big = false;
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		if ( t == o )
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			return false;
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		if (isSamePiece(t, o))
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			return false;
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		if (getType(o) == EMPTY)
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			return false;
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		/*
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		 *	00 01 02 03 04 05 06 07
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		 *	08 09 10 11 12 13 14 15
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		 *	16 17 18 19 20 21 22 23
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		 *	24 25 26 27 28 29 30 31
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		 *	32 33 34 35 36 37 38 39
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		 *	40 41 42 43 44 45 46 47
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		 *	48 49 50 51 52 53 54 55
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		 *	56 57 58 59 60 61 62 63
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		 */
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		steps = Math.abs(t-o);
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		rows = Math.abs(t/8 - o/8);
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		switch( getType(o) ) {
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		case ROOK:
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			if (steps < 8 && rows == 0 ) {
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				if(t>o)
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					for ( dx = o+1; dx < t; dx++ ) {
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						if ( getColor(dx) != null ) {
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							return false;
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						}
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					}
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				else
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					for ( dx = o-1; dx > t; dx-- ) {
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						if ( getColor(dx) != null ) {
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							return false;
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						}
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					}
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				return true;
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			}
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			if (steps % 8 == 0 ) {
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				if ( t>o ) {
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					for ( dx = o+8;  dx < t; dx+=8 ) {
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						if (getColor(dx) != null)
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							return false;
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					}
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				} else {
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					for ( dx = o-8;  dx > t; dx-=8 ) {
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						if (getColor(dx) != null)
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							return false;
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					}
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				}
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				if (steps == 8 && rows == 1)
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					return true;
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				if (steps == 16 && rows == 2)
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					return true;
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				if (steps == 24 && rows == 3)
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					return true;
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				if (steps == 32 && rows == 4)
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					return true;
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				if (steps == 40 && rows == 5)
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					return true;
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				if (steps == 48 && rows == 6)
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					return true;
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				if (steps == 56 && rows == 7)
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					return true;
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			}
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			break;
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   224
		case KNIGHT:
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			/* works fine */
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			if (steps == 6 && rows == 1)
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				return true;
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   228
			if (steps == 10 && rows == 1)
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				return true;
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			if (steps == 15 && rows == 2)
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				return true;
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			if (steps == 17 && rows == 2)
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				return true;
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			break;
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		case BISHOP:
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			if (steps % 7 == 0 ) {
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				if ( t>o ) {
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   238
					for ( dx = o+7;  dx < t; dx+=7 ) {
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						if (getColor(dx) != null)
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							return false;
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   241
					}
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				} else {
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					for ( dx = o-7;  dx > t; dx-=7 ) {
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						if (getColor(dx) != null)
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							return false;
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   246
					}
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				}
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				if (steps == 7 && rows == 1)
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					return true;
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				if (steps == 14 && rows == 2)
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					return true;
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				if (steps == 21 && rows == 3)
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					return true;
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   254
				if (steps == 28 && rows == 4)
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					return true;
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   256
				if (steps == 35 && rows == 5)
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					return true;
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   258
				if (steps == 42 && rows == 6)
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					return true;
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				if (steps == 49 && rows == 7)
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					return true;
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Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   262
			}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   263
			if (steps % 9 == 0 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   264
				if ( t>o ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   265
					for ( dx = o+9;  dx < t; dx+=9 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   266
						if (getColor(dx) != null)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   267
							return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   268
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   269
				} else {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   270
					for ( dx = o-9; dx > t; dx-=9 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   271
						if (getColor(dx) != null)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   272
							return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   273
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   274
				}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   275
				if (steps == 9 && rows == 1)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   276
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   277
				if (steps == 18 && rows == 2)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   278
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   279
				if (steps == 27 && rows == 3)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   280
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   281
				if (steps == 36 && rows == 4)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   282
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   283
				if (steps == 45 && rows == 5)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   284
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   285
				if (steps == 54 && rows == 6)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   286
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   287
				if (steps == 63 && rows == 7)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   288
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   289
			}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   290
			break;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   291
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   292
		case QUEEN:
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   293
			if (steps < 8 && rows == 0 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   294
				if(t>o)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   295
					for ( dx = o+1; dx < t; dx++ ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   296
						if ( getColor(dx) != null )
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   297
							return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   298
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   299
				else
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   300
					for ( dx = o-1; dx > t; dx-- ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   301
						if ( getColor(dx) != null )
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   302
							return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   303
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   304
				return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   305
			}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   306
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   307
			if (steps % 8 == 0 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   308
				if ( t>o ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   309
					for ( dx = o+8;  dx < t; dx+=8 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   310
						if (getColor(dx) != null)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   311
							return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   312
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   313
				} else {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   314
					for ( dx = o-8;  dx > t; dx-=8 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   315
						if (getColor(dx) != null)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   316
							return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   317
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   318
				}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   319
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   320
				if (steps == 8 && rows == 1)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   321
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   322
				if (steps == 16 && rows == 2)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   323
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   324
				if (steps == 24 && rows == 3)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   325
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   326
				if (steps == 32 && rows == 4)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   327
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   328
				if (steps == 40 && rows == 5)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   329
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   330
				if (steps == 48 && rows == 6)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   331
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   332
				if (steps == 56 && rows == 7)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   333
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   334
			}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   335
			if (steps % 7 == 0 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   336
				if ( t>o ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   337
					for ( dx = o+7;  dx < t; dx+=7 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   338
						if (getColor(dx) != null)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   339
							return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   340
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   341
				} else {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   342
					for ( dx = o-7;  dx > t; dx-=7 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   343
						if (getColor(dx) != null)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   344
							return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   345
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   346
				}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   347
				if (steps == 7 && rows == 1)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   348
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   349
				if (steps == 14 && rows == 2)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   350
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   351
				if (steps == 21 && rows == 3)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   352
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   353
				if (steps == 28 && rows == 4)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   354
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   355
				if (steps == 35 && rows == 5)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   356
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   357
				if (steps == 42 && rows == 6)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   358
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   359
				if (steps == 49 && rows == 7)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   360
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   361
			}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   362
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   363
			if (steps % 9 == 0 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   364
				if ( t>o ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   365
					for ( dx = o+9;  dx < t; dx+=9 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   366
						if (getColor(dx) != null)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   367
							return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   368
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   369
				} else {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   370
					for ( dx = o-9;  dx > t; dx -=9 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   371
						if (getColor(dx) != null)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   372
							return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   373
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   374
				}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   375
				if (steps == 9 && rows == 1)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   376
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   377
				if (steps == 18 && rows == 2)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   378
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   379
				if (steps == 27 && rows == 3)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   380
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   381
				if (steps == 36 && rows == 4)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   382
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   383
				if (steps == 45 && rows == 5)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   384
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   385
				if (steps == 54 && rows == 6)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   386
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   387
				if (steps == 63 && rows == 7)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   388
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   389
			}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   390
			break;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   391
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   392
		case KING:
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   393
			if ( (steps == 1) && (rows == 0) )
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   394
				return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   395
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   396
			if ( (steps == 8) && (rows == 1) )
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   397
				return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   398
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   399
			if ( (steps == 7) && (rows == 1) )
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   400
				return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   401
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   402
			if ( (steps == 9) && (rows == 1) )
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   403
				return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   404
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   405
			if ( (steps == 2) && (rows == 0) ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   406
				if ( isWhiteKing(o) ) {		/* White: Rochade */
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   407
					if ( isWhiteKing(60) && isEmpty(61) && isEmpty(62) && (t==62) ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   408
						if ( (getType(63) == ROOK) && isWhite(63) ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   409
							white_rochades_small = true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   410
							return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   411
						}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   412
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   413
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   414
					if ( isWhiteKing(60) && isEmpty(59) && isEmpty(58) && isEmpty(57) && (t==58) ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   415
						if ( (getType(56) == ROOK) && isWhite(56) ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   416
							white_rochades_big = true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   417
							return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   418
						}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   419
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   420
				}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   421
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   422
				if ( isBlackKing(o) ) {		/* Black: Rochade */
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   423
					if ( isBlackKing(4) && isEmpty(5) && isEmpty(6) && (t==6) ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   424
						if ( (getType(7) == ROOK) && isBlack(7) ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   425
							black_rochades_small = true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   426
							return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   427
						}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   428
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   429
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   430
					if ( isBlackKing(4) && isEmpty(3) && isEmpty(2) && isEmpty(1) && (t==2) ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   431
						if ( (getType(0) == ROOK) && isBlack(0) ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   432
							black_rochades_big = true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   433
							return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   434
						}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   435
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   436
				}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   437
			}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   438
			break;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   439
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   440
		case PAWN:
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   441
			if (getColor(o).equals("white")) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   442
				if (steps == 7 && rows == 1 && isEnemy(t, o) && t<o)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   443
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   444
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   445
				if (steps == 9 && rows == 1 && isEnemy(t, o) && t<o)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   446
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   447
			} else {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   448
				if (steps == 7 && rows == 1 && isEnemy(t, o) && t>o)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   449
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   450
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   451
				if (steps == 9 && rows == 1 && isEnemy(t, o) && t>o)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   452
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   453
			}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   454
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   455
			if (steps % 8 == 0 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   456
				if ( t>o ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   457
					for ( dx = o+8;  dx <= t; dx+=8 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   458
						if (getColor(dx) != null)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   459
							return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   460
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   461
				} else {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   462
					for ( dx = o-8; dx >= t; dx-=8 ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   463
						if (getColor(dx) != null)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   464
							return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   465
					}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   466
				}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   467
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   468
				if (steps == 8 && rows == 1) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   469
					if ( getColor(o).equals("white") && t < o )
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   470
						return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   471
					if ( getColor(o).equals("black") && t > o )
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   472
						return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   473
				}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   474
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   475
				if (steps == 16 && rows == 2 && (o>= 8 && o <=15) ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   476
					if ( getColor(o).equals("white") && t < o )
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   477
						return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   478
					if ( getColor(o).equals("black") && t > o )
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   479
						return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   480
				}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   481
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   482
				if (steps == 16 && rows == 2 && (o>=48 && o <=55) ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   483
					if ( getColor(o).equals("white") && t < o )
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   484
						return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   485
					if ( getColor(o).equals("black") && t > o )
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   486
						return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   487
				}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   488
			}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   489
			break;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   490
		}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   491
		return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   492
	}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   493
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   494
	/**
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   495
	 * This method must be called immediately after isValidMove(t, o)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   496
	 */
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   497
	boolean rochade() {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   498
		if (white_rochades_small) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   499
			setPiece(61, getPiece(63));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   500
			setPiece(63, new Piece(null, null, EMPTY, 0));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   501
			return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   502
		}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   503
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   504
		if (white_rochades_big) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   505
			setPiece(59, getPiece(56));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   506
			setPiece(56, new Piece(null, null, EMPTY, 0));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   507
			return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   508
		}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   509
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   510
		if (black_rochades_small) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   511
			setPiece(5, getPiece(7));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   512
			setPiece(7, new Piece(null, null, EMPTY, 0));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   513
			return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   514
		}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   515
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   516
		if (black_rochades_big) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   517
			setPiece(3, getPiece(0));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   518
			setPiece(0, new Piece(null, null, EMPTY, 0));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   519
			return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   520
		}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   521
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   522
		return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   523
	}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   524
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   525
	/**
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   526
	 * checks, whether color is in check or not.
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   527
	 */
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   528
	public boolean isCheck(String color) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   529
		int i;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   530
		int wking;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   531
		int bking;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   532
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   533
		wking = bking = -1;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   534
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   535
		for (i=0;i<64;i++) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   536
			if (isWhiteKing(i)) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   537
				wking = i;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   538
			}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   539
			if (isBlackKing(i)) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   540
				bking = i;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   541
			}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   542
		}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   543
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   544
		// returns 64 false positives
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   545
		if (wking == -1 || bking == -1)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   546
			return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   547
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   548
		if (color.equals("white")) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   549
			for (i=0;i<64;i++)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   550
				if (validMove(wking, i)) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   551
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   552
				}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   553
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   554
			return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   555
		}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   556
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   557
		if (color.equals("black")) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   558
			for (i=0;i<64;i++)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   559
				if (validMove(bking, i)) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   560
					return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   561
				}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   562
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   563
			return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   564
		}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   565
		return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   566
	}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   567
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   568
	/**
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   569
	 * simulates a "valid" move or returns false.
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   570
	 * all changes are relative to pieces and will not be painted.
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   571
	 * This method sets internal variables for the rochade() method, which will be overwritten.
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   572
	 */
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   573
	public boolean simulateMove(int t, int o) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   574
		if ( !validMove(t, o) ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   575
			return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   576
		}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   577
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   578
		push(getPiece(t), t, getPiece(o), o);
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   579
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   580
		if ( getType(o) == PAWN ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   581
			if(isBlack(o) && t >=56)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   582
				setPiece(o, new Piece(black_queen));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   583
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   584
			if(isWhite(o) && t <=7)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   585
				setPiece(o, new Piece(white_queen));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   586
		}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   587
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   588
		setPiece(t, new Piece(getPiece(o)));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   589
		setPiece(o, new Piece(null, null, EMPTY, 0));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   590
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   591
		if (isCheck(getColor(t))) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   592
			/* restore current position */
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   593
			if(UNDO_DEBUG)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   594
				print("UNDO", t, o, 0);
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   595
			undo();
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   596
			return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   597
		}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   598
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   599
		return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   600
	}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   601
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   602
	/**
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   603
	 * performs a "valid" move or returns false.
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   604
	 * all changes are relative to board_pieces and will be painted.
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   605
	 */
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   606
	public boolean doMove(int t, int o) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   607
		if ( !validMove(t, o) ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   608
			return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   609
		}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   610
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   611
		push(getPiece(t), t, getPiece(o), o);
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   612
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   613
		if ( getType(o) == PAWN ) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   614
			if(isBlack(o) && t >=56)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   615
				setPiece(o, new Piece(black_queen));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   616
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   617
			if(isWhite(o) && t <=7)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   618
				setPiece(o, new Piece(white_queen));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   619
		}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   620
		
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   621
		setPiece(t, new Piece(getPiece(o)));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   622
		setPiece(o, new Piece(null, null, EMPTY, 0));
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   623
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   624
		if (rochade())
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   625
			System.out.println("Rochade");
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   626
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   627
		if (isCheck(getColor(t))) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   628
			// restore current positions
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   629
			if(UNDO_DEBUG)
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   630
				print("UNDO", t, o, 0);
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   631
			undo();
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   632
			return false;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   633
		}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   634
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   635
		board_pieces = getPieces();
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   636
		repaint();
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   637
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   638
		moveNr = stack.size();
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   639
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   640
		return true;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   641
	}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   642
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   643
	/**
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   644
	 * converts the internal representation into normal chess notation and writes it to stdout
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   645
	 */
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   646
	public void print(String s, int t, int o, int value) {
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   647
		int row1, col1, row2, col2;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   648
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   649
		row1 = o/8;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   650
		col1 = o-(8*row1);
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   651
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   652
		row2 = t/8;
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   653
		col2 = t-(8*row2);
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   654
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   655
		System.out.printf("%s: %C%d-%c%d = %3d\n", s,
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   656
				('A')+col1, 8-row1,
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   657
				('A')+col2, 8-row2, value);
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   658
	}
e0dbaef72362 svn copy of the chess engine
Markus Bröker <mbroeker@largo.homelinux.org>
parents:
diff changeset
   659
}