v0.4.1
The computer plays with minmax and detects the end of games No known bugs
This commit is contained in:
@ -12,7 +12,7 @@ import suicideChess.Square.NotAValidSquare;
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*/
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public class Rules {
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private static ArrayList<Move> legalMovesNonCapture;
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private static ArrayList<Move> legalMovesCapture;
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@ -66,40 +66,39 @@ public class Rules {
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* @see Square
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* @see Board
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*/
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public static void legalMovesFromSquare(Square fromSquare, Board board) throws NotAValidSquare {
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public static void legalMovesFromSquare(Square fromSquare, Board board) throws NotAValidSquare {
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Move validMove;
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Square toSquare;
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Piece movingPiece = board.getPiece(fromSquare);
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switch (movingPiece.getPieceType()) {
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case Piece.NONE:
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break;
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case Piece.PAWN:
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boolean normalMove=true; //is a normal (straight) move allowed
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boolean promotion=false;
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boolean bigJump=false; //if the pawn is allowed to move two squares
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Square toBigJumpSquare=null; //the square for the "big jump"
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boolean captureRight=true;
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boolean captureLeft=true;
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Square toCaptureLeftSquare=null;
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Square toCaptureRightSquare=null;
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Square toSquare;
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Piece movingPiece = board.getPiece(fromSquare);
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switch (movingPiece.getPieceType()) {
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case Piece.NONE:
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break;
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case Piece.PAWN:
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boolean normalMove=true; //is a normal (straight) move allowed
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boolean promotion=false;
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boolean bigJump=false; //if the pawn is allowed to move two squares
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Square toBigJumpSquare=null; //the square for the "big jump"
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boolean captureRight=true;
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boolean captureLeft=true;
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Square toCaptureLeftSquare=null;
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Square toCaptureRightSquare=null;
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boolean captureEnPassantRight=board.isEnPassant();
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boolean captureEnPassantLeft=board.isEnPassant();
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Square captureEnPassantLeftSquare=null;
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Square captureEnPassantRightSquare=null;
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switch (movingPiece.getColor()) {
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case Piece.WHITE:
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toSquare = new Square(fromSquare.getFileNb(), fromSquare.getRank()+1);
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if (fromSquare.getRank()==2) {
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bigJump=true;
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toBigJumpSquare = new Square(fromSquare.getFileNb(), fromSquare.getRank()+2);
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} else if (toSquare.getRank()==Board.NB_OF_RANKS) {
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promotion=true;
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}
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if(fromSquare.getFileNb()>1) { //make sure not to go out of the board
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switch (movingPiece.getColor()) {
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case Piece.WHITE:
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toSquare = new Square(fromSquare.getFileNb(), fromSquare.getRank()+1);
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if (fromSquare.getRank()==2) {
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bigJump=true;
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toBigJumpSquare = new Square(fromSquare.getFileNb(), fromSquare.getRank()+2);
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} else if (toSquare.getRank()==Board.NB_OF_RANKS) {
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promotion=true;
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}
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if(fromSquare.getFileNb()>1) { //make sure not to go out of the board
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toCaptureLeftSquare = new Square(fromSquare.getFileNb()-1, fromSquare.getRank()+1);
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if(captureEnPassantLeft) {
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captureEnPassantLeftSquare = new Square(fromSquare.getFileNb()-1, fromSquare.getRank());
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@ -123,15 +122,15 @@ public class Rules {
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captureRight = false;
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captureEnPassantRight=false;
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}
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break;
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case Piece.BLACK:
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toSquare = new Square(fromSquare.getFileNb(), fromSquare.getRank()-1);
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if (fromSquare.getRank()==(Board.NB_OF_RANKS-1)) {
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bigJump=true;
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toBigJumpSquare = new Square(fromSquare.getFileNb(), fromSquare.getRank()-2);
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} else if (toSquare.getRank()==1) {
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promotion=true;
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}
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break;
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case Piece.BLACK:
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toSquare = new Square(fromSquare.getFileNb(), fromSquare.getRank()-1);
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if (fromSquare.getRank()==(Board.NB_OF_RANKS-1)) {
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bigJump=true;
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toBigJumpSquare = new Square(fromSquare.getFileNb(), fromSquare.getRank()-2);
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} else if (toSquare.getRank()==1) {
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promotion=true;
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}
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if(fromSquare.getFileNb()>1) { //make sure not to go out of the board
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toCaptureLeftSquare = new Square(fromSquare.getFileNb()-1, fromSquare.getRank()-1);
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if(captureEnPassantLeft) {
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@ -156,89 +155,89 @@ public class Rules {
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captureRight = false;
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captureEnPassantRight=false;
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}
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break;
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break;
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default:
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throw new RuntimeException("ERROR 01.");
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}
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if (board.getPiece(toSquare).getPieceNumber()!=Piece.NONE) {
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normalMove= false; //cannot move forward if there is a piece
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}
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if (board.getPiece(toSquare).getPieceNumber()!=Piece.NONE) {
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normalMove= false; //cannot move forward if there is a piece
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bigJump=false;
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}
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if (captureLeft&&
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}
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if (captureLeft&&
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((board.getPiece(toCaptureLeftSquare).getColor()==Piece.NO_COLOR)
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|| (board.getPiece(toCaptureLeftSquare).getColor()==movingPiece.getColor()))) {
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captureLeft = false;
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}
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|| (board.getPiece(toCaptureLeftSquare).getColor()==movingPiece.getColor()))) {
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captureLeft = false;
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}
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if (captureRight&&
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((board.getPiece(toCaptureRightSquare).getColor()==Piece.NO_COLOR)
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|| (board.getPiece(toCaptureRightSquare).getColor()==movingPiece.getColor()))) {
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captureRight = false;
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}
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if (bigJump && (board.getPiece(toBigJumpSquare).getPieceNumber()!=Piece.NONE)) {
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bigJump=false;
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}
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if (promotion) {
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if (normalMove) {
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//to Queen
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validMove = new Move(fromSquare, toSquare, movingPiece, new Piece(Piece.NONE), new Piece(Piece.QUEEN_CHAR, movingPiece.getColor()));
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legalMovesNonCapture.add(validMove);
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//to King
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validMove = new Move(fromSquare, toSquare, movingPiece, new Piece(Piece.NONE), new Piece(Piece.KING_CHAR, movingPiece.getColor()));
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legalMovesNonCapture.add(validMove);
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//to Bishop
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validMove = new Move(fromSquare, toSquare, movingPiece, new Piece(Piece.NONE), new Piece(Piece.BISHOP_CHAR, movingPiece.getColor()));
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legalMovesNonCapture.add(validMove);
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|| (board.getPiece(toCaptureRightSquare).getColor()==movingPiece.getColor()))) {
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captureRight = false;
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}
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if (bigJump && (board.getPiece(toBigJumpSquare).getPieceNumber()!=Piece.NONE)) {
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bigJump=false;
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}
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if (promotion) {
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if (normalMove) {
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//to Queen
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validMove = new Move(fromSquare, toSquare, movingPiece, new Piece(Piece.NONE), new Piece(Piece.QUEEN_CHAR, movingPiece.getColor()));
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legalMovesNonCapture.add(validMove);
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//to King
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validMove = new Move(fromSquare, toSquare, movingPiece, new Piece(Piece.NONE), new Piece(Piece.KING_CHAR, movingPiece.getColor()));
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legalMovesNonCapture.add(validMove);
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//to Bishop
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validMove = new Move(fromSquare, toSquare, movingPiece, new Piece(Piece.NONE), new Piece(Piece.BISHOP_CHAR, movingPiece.getColor()));
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legalMovesNonCapture.add(validMove);
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//to Knight
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validMove = new Move(fromSquare, toSquare, movingPiece, new Piece(Piece.NONE), new Piece(Piece.KNIGHT_CHAR, movingPiece.getColor()));
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legalMovesNonCapture.add(validMove);
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//to Rook
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validMove = new Move(fromSquare, toSquare, movingPiece, new Piece(Piece.NONE), new Piece(Piece.ROOK_CHAR, movingPiece.getColor()));
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legalMovesNonCapture.add(validMove);
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}
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if (captureLeft) {
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//to Queen
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validMove = new Move(fromSquare, toCaptureLeftSquare, movingPiece, board.getPiece(toCaptureLeftSquare), new Piece(Piece.QUEEN_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to King
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validMove = new Move(fromSquare, toCaptureLeftSquare, movingPiece, board.getPiece(toCaptureLeftSquare), new Piece(Piece.KING_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to Bishop
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validMove = new Move(fromSquare, toCaptureLeftSquare, movingPiece, board.getPiece(toCaptureLeftSquare), new Piece(Piece.BISHOP_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to Rook
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validMove = new Move(fromSquare, toSquare, movingPiece, new Piece(Piece.NONE), new Piece(Piece.ROOK_CHAR, movingPiece.getColor()));
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legalMovesNonCapture.add(validMove);
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}
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if (captureLeft) {
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//to Queen
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validMove = new Move(fromSquare, toCaptureLeftSquare, movingPiece, board.getPiece(toCaptureLeftSquare), new Piece(Piece.QUEEN_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to King
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validMove = new Move(fromSquare, toCaptureLeftSquare, movingPiece, board.getPiece(toCaptureLeftSquare), new Piece(Piece.KING_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to Bishop
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validMove = new Move(fromSquare, toCaptureLeftSquare, movingPiece, board.getPiece(toCaptureLeftSquare), new Piece(Piece.BISHOP_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to Knight
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validMove = new Move(fromSquare, toCaptureLeftSquare, movingPiece, board.getPiece(toCaptureLeftSquare), new Piece(Piece.KNIGHT_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to Rook
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validMove = new Move(fromSquare, toCaptureLeftSquare, movingPiece, board.getPiece(toCaptureLeftSquare), new Piece(Piece.ROOK_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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}
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if (captureRight) {
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//to Queen
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validMove = new Move(fromSquare, toCaptureRightSquare, movingPiece, board.getPiece(toCaptureRightSquare), new Piece(Piece.QUEEN_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to King
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validMove = new Move(fromSquare, toCaptureRightSquare, movingPiece, board.getPiece(toCaptureRightSquare), new Piece(Piece.KING_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to Knight
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validMove = new Move(fromSquare, toCaptureRightSquare, movingPiece, board.getPiece(toCaptureRightSquare), new Piece(Piece.KNIGHT_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to Bishop
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validMove = new Move(fromSquare, toCaptureRightSquare, movingPiece, board.getPiece(toCaptureRightSquare), new Piece(Piece.BISHOP_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to Rook
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validMove = new Move(fromSquare, toCaptureRightSquare, movingPiece, board.getPiece(toCaptureRightSquare), new Piece(Piece.ROOK_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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}
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} else {
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if (normalMove) {
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validMove = new Move(fromSquare, toSquare, movingPiece, new Piece(Piece.NONE), new Piece(Piece.NONE));
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legalMovesNonCapture.add(validMove);
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}
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if (bigJump) {
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//create an 'en-passant' status
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//to Rook
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validMove = new Move(fromSquare, toCaptureLeftSquare, movingPiece, board.getPiece(toCaptureLeftSquare), new Piece(Piece.ROOK_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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}
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if (captureRight) {
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//to Queen
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validMove = new Move(fromSquare, toCaptureRightSquare, movingPiece, board.getPiece(toCaptureRightSquare), new Piece(Piece.QUEEN_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to King
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validMove = new Move(fromSquare, toCaptureRightSquare, movingPiece, board.getPiece(toCaptureRightSquare), new Piece(Piece.KING_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to Knight
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validMove = new Move(fromSquare, toCaptureRightSquare, movingPiece, board.getPiece(toCaptureRightSquare), new Piece(Piece.KNIGHT_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to Bishop
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validMove = new Move(fromSquare, toCaptureRightSquare, movingPiece, board.getPiece(toCaptureRightSquare), new Piece(Piece.BISHOP_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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//to Rook
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validMove = new Move(fromSquare, toCaptureRightSquare, movingPiece, board.getPiece(toCaptureRightSquare), new Piece(Piece.ROOK_CHAR, movingPiece.getColor()));
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legalMovesCapture.add(validMove);
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}
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} else {
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if (normalMove) {
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validMove = new Move(fromSquare, toSquare, movingPiece, new Piece(Piece.NONE), new Piece(Piece.NONE));
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legalMovesNonCapture.add(validMove);
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}
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if (bigJump) {
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//create an 'en-passant' status
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validMove = new Move(fromSquare, toBigJumpSquare, toSquare, movingPiece, false);
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legalMovesNonCapture.add(validMove);
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}
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legalMovesNonCapture.add(validMove);
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}
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if (captureEnPassantLeft) {
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//create an 'en-passant' move
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validMove = new Move(fromSquare, toCaptureLeftSquare, captureEnPassantLeftSquare, movingPiece, true);
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@ -249,51 +248,52 @@ public class Rules {
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validMove = new Move(fromSquare, toCaptureRightSquare, captureEnPassantRightSquare, movingPiece, true);
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legalMovesCapture.add(validMove);
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}
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if (captureLeft) {
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validMove = new Move(fromSquare, toCaptureLeftSquare, movingPiece, board.getPiece(toCaptureLeftSquare), new Piece(Piece.NONE));
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legalMovesCapture.add(validMove);
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}
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if (captureRight) {
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validMove = new Move(fromSquare, toCaptureRightSquare, movingPiece, board.getPiece(toCaptureRightSquare), new Piece(Piece.NONE));
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legalMovesCapture.add(validMove);
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}
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}
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break;
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default:
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//look for all valid moves
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for (int ray=0;
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ray<movesAllowed[movingPiece.getPieceType()][Board.squareToBitBoardSquare(fromSquare)].length;
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ray++) {
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for (int moveNumber=0;
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moveNumber<movesAllowed[movingPiece.getPieceType()][Board.squareToBitBoardSquare(fromSquare)][ray].length;
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moveNumber++) {
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toSquare =
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new Square(movesAllowed[movingPiece.getPieceType()]
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[Board.squareToBitBoardSquare(fromSquare)][ray][moveNumber]);
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//first check if there is a piece of the same color on that square
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if (board.getPiece(toSquare).getColor()==movingPiece.getColor()) {
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break;
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}
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validMove = new Move(fromSquare, toSquare, movingPiece, board.getPiece(toSquare), new Piece(Piece.NONE));
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//add move to list of legal moves
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if (validMove.isCaptureMove()) {
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legalMovesCapture.add(validMove);
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break; //don't go further in the ray
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} else {
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legalMovesNonCapture.add(validMove);
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}
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}//end for moveNumber
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}//end for ray
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} //end case
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}
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validMove = new Move(fromSquare, toCaptureLeftSquare, movingPiece, board.getPiece(toCaptureLeftSquare), new Piece(Piece.NONE));
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legalMovesCapture.add(validMove);
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}
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if (captureRight) {
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validMove = new Move(fromSquare, toCaptureRightSquare, movingPiece, board.getPiece(toCaptureRightSquare), new Piece(Piece.NONE));
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legalMovesCapture.add(validMove);
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}
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}
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break;
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default:
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int pieceType = movingPiece.getPieceType();
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int bitboardSquare = Board.squareToBitBoardSquare(fromSquare);
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//look for all valid moves
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for (int ray=0; ray<movesAllowed[pieceType][bitboardSquare].length; ray++) {
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try {
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for (int moveNumber=0; moveNumber<movesAllowed[pieceType][bitboardSquare][ray].length; moveNumber++) {
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toSquare =
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new Square(movesAllowed[pieceType][bitboardSquare][ray][moveNumber]);
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//first check if there is a piece of the same color on that square
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if (board.getPiece(toSquare).getColor()==movingPiece.getColor()) {
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break;
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}
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validMove = new Move(fromSquare, toSquare, movingPiece, board.getPiece(toSquare), new Piece(Piece.NONE));
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//add move to list of legal moves
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if (validMove.isCaptureMove()) {
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legalMovesCapture.add(validMove);
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break; //don't go further in the ray
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} else {
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legalMovesNonCapture.add(validMove);
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}
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}//end for moveNumber
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} catch (Exception e) {
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throw new RuntimeException("pieceType:"+pieceType+" bitboardSquare:"+bitboardSquare+
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" ray:"+ray+" movesAllowed[pieceType][bitboardSquare][ray]:"+movesAllowed[pieceType][bitboardSquare][ray]);
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}
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}//end for ray
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} //end case
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}
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/**
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* This function return the current status of the ArrayList<Move> of all legal {@link Move}
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@ -4843,7 +4843,6 @@ public class Rules {
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movesAllowed[Piece.QUEEN][ 45 ][ 2 ][ 4 ] = 5;
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movesAllowed[Piece.QUEEN][ 45 ][ 3 ][ 0 ] = 53;
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movesAllowed[Piece.QUEEN][ 45 ][ 3 ][ 1 ] = 61;
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movesAllowed[Piece.QUEEN][ 45 ] = new int[ 8 ][];
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movesAllowed[Piece.QUEEN][ 45 ][ 4 ] = new int[ 5 ];
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movesAllowed[Piece.QUEEN][ 45 ][ 5 ] = new int[ 2 ];
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movesAllowed[Piece.QUEEN][ 45 ][ 6 ] = new int[ 2 ];
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