--- a/org/homelinux/largo/games/board/chessboard/ChessBoard.java
+++ b/org/homelinux/largo/games/board/chessboard/ChessBoard.java
@@ -12,646 +12,641 @@
import org.homelinux.largo.utils.ImgComponent;
public class ChessBoard extends Board {
- static final long serialVersionUID = 1L;
+ static final long serialVersionUID = 1L;
- static final int ROOK = 1;
- static final int KNIGHT = 2;
- static final int BISHOP = 3;
- static final int QUEEN = 4;
- static final int KING = 5;
- static final int PAWN = 6;
+ static final int ROOK = 1;
+ static final int KNIGHT = 2;
+ static final int BISHOP = 3;
+ static final int QUEEN = 4;
+ static final int KING = 5;
+ static final int PAWN = 6;
- final Piece white_queen = new Piece(new ImgComponent("images/white_queen.png").getImage(), "white", QUEEN, 90);
- final Piece black_queen = new Piece(new ImgComponent("images/black_queen.png").getImage(), "black", QUEEN, 90);
+ final Piece white_queen = new Piece(new ImgComponent("images/white_queen.png").getImage(), "white", QUEEN, 90);
+ final Piece black_queen = new Piece(new ImgComponent("images/black_queen.png").getImage(), "black", QUEEN, 90);
- boolean white_rochades_small;
- boolean white_rochades_big;
- boolean black_rochades_small;
- boolean black_rochades_big;
+ boolean white_rochades_small;
+ boolean white_rochades_big;
+ boolean black_rochades_small;
+ boolean black_rochades_big;
- void initBoard() {
- add(new ImgComponent("images/black_rook.png").getImage(), 0, "black", ROOK);
- add(new ImgComponent("images/black_knight.png").getImage(), 1, "black", KNIGHT);
- add(new ImgComponent("images/black_bishop.png").getImage(), 2, "black", BISHOP);
- add(new ImgComponent("images/black_queen.png").getImage(), 3, "black", QUEEN);
- add(new ImgComponent("images/black_king.png").getImage(), 4, "black", KING);
- add(new ImgComponent("images/black_bishop.png").getImage(), 5, "black", BISHOP);
- add(new ImgComponent("images/black_knight.png").getImage(), 6, "black", KNIGHT);
- add(new ImgComponent("images/black_rook.png").getImage(), 7, "black", ROOK);
+ void initBoard() {
+ add(new ImgComponent("images/black_rook.png").getImage(), 0, "black", ROOK);
+ add(new ImgComponent("images/black_knight.png").getImage(), 1, "black", KNIGHT);
+ add(new ImgComponent("images/black_bishop.png").getImage(), 2, "black", BISHOP);
+ add(new ImgComponent("images/black_queen.png").getImage(), 3, "black", QUEEN);
+ add(new ImgComponent("images/black_king.png").getImage(), 4, "black", KING);
+ add(new ImgComponent("images/black_bishop.png").getImage(), 5, "black", BISHOP);
+ add(new ImgComponent("images/black_knight.png").getImage(), 6, "black", KNIGHT);
+ add(new ImgComponent("images/black_rook.png").getImage(), 7, "black", ROOK);
- for (int i = 0; i < 8; i++)
- add(new ImgComponent("images/black_pawn.png").getImage(), 8 + i, "black", PAWN);
+ for (int i = 0; i < 8; i++)
+ add(new ImgComponent("images/black_pawn.png").getImage(), 8 + i, "black", PAWN);
- add(new ImgComponent("images/white_rook.png").getImage(), 56, "white", ROOK);
- add(new ImgComponent("images/white_knight.png").getImage(), 57, "white", KNIGHT);
- add(new ImgComponent("images/white_bishop.png").getImage(), 58, "white", BISHOP);
- add(new ImgComponent("images/white_queen.png").getImage(), 59, "white", QUEEN);
- add(new ImgComponent("images/white_king.png").getImage(), 60, "white", KING);
- add(new ImgComponent("images/white_bishop.png").getImage(), 61, "white", BISHOP);
- add(new ImgComponent("images/white_knight.png").getImage(), 62, "white", KNIGHT);
- add(new ImgComponent("images/white_rook.png").getImage(), 63, "white", ROOK);
+ add(new ImgComponent("images/white_rook.png").getImage(), 56, "white", ROOK);
+ add(new ImgComponent("images/white_knight.png").getImage(), 57, "white", KNIGHT);
+ add(new ImgComponent("images/white_bishop.png").getImage(), 58, "white", BISHOP);
+ add(new ImgComponent("images/white_queen.png").getImage(), 59, "white", QUEEN);
+ add(new ImgComponent("images/white_king.png").getImage(), 60, "white", KING);
+ add(new ImgComponent("images/white_bishop.png").getImage(), 61, "white", BISHOP);
+ add(new ImgComponent("images/white_knight.png").getImage(), 62, "white", KNIGHT);
+ add(new ImgComponent("images/white_rook.png").getImage(), 63, "white", ROOK);
- for (int i = 0; i < 8; i++)
- add(new ImgComponent("images/white_pawn.png").getImage(), 55 - i, "white", PAWN);
- }
+ for (int i = 0; i < 8; i++)
+ add(new ImgComponent("images/white_pawn.png").getImage(), 55 - i, "white", PAWN);
+ }
- /**
- * The init method initializes a complete chess board with figures and a
- * history.
- */
- public void init() {
- super.init();
- initBoard();
- board_pieces = getPieces();
- repaint();
- }
+ /**
+ * The init method initializes a complete chess board with figures and a
+ * history.
+ */
+ public void init() {
+ super.init();
+ initBoard();
+ board_pieces = getPieces();
+ repaint();
+ }
- public ChessBoard(int w, int h) {
- super(w, h);
- }
+ public ChessBoard(int w, int h) {
+ super(w, h);
+ }
- void add(Image img, int i, String c, int t) {
- int v = 0;
+ void add(Image img, int i, String c, int t) {
+ int v = 0;
- switch (t) {
- case ROOK:
- v = 80;
- break;
- case KNIGHT:
- v = 30;
- break;
- case BISHOP:
- v = 30;
- break;
- case QUEEN:
- v = 90;
- break;
- case KING:
- v = 120;
- break;
- case PAWN:
- v = 10;
- break;
- }
+ switch (t) {
+ case ROOK:
+ v = 80;
+ break;
+ case KNIGHT:
+ v = 30;
+ break;
+ case BISHOP:
+ v = 30;
+ break;
+ case QUEEN:
+ v = 90;
+ break;
+ case KING:
+ v = 120;
+ break;
+ case PAWN:
+ v = 10;
+ break;
+ }
- setPiece(i, new Piece(img, c, t, v));
- }
+ setPiece(i, new Piece(img, c, t, v));
+ }
- /**
- * returns true, when the white king is at pieces[i]
- */
- public boolean isWhiteKing(int i) {
- if (isWhite(i) && getType(i) == KING)
- return true;
- return false;
- }
+ /**
+ * returns true, when the white king is at pieces[i]
+ */
+ public boolean isWhiteKing(int i) {
+ if (isWhite(i) && getType(i) == KING)
+ return true;
+ return false;
+ }
- /**
- * returns true, when the black king is at pieces[i]
- */
- public boolean isBlackKing(int i) {
- if (isBlack(i) && getType(i) == KING)
- return true;
- return false;
- }
+ /**
+ * returns true, when the black king is at pieces[i]
+ */
+ public boolean isBlackKing(int i) {
+ if (isBlack(i) && getType(i) == KING)
+ return true;
+ return false;
+ }
- /**
- * Returns the score of the current position Every field controlled by
- * [color] gives one point A King, controlled by [color], gives 10 extra
- * points
- */
- public int controls(String color) {
- int t, o;
- int value = 0;
+ /**
+ * Returns the score of the current position Every field controlled by
+ * [color] gives one point A King, controlled by [color], gives 10 extra
+ * points
+ */
+ public int controls(String color) {
+ int t, o;
+ int value = 0;
- for (o = 0; o < 64; o++) {
- if (color.equals(getColor(o))) {
- for (t = 0; t < 64; t++) {
- if (validMove(t, o)) {
- if (getType(t) == KING)
- value += 10;
- value++;
- }
- }
- }
- }
- return value;
- }
+ for (o = 0; o < 64; o++) {
+ if (color.equals(getColor(o))) {
+ for (t = 0; t < 64; t++) {
+ if (validMove(t, o)) {
+ if (getType(t) == KING)
+ value += 10;
+ value++;
+ }
+ }
+ }
+ }
+ return value;
+ }
- /**
- * Checks, wether this move is possible or not.
- */
- public boolean validMove(int t, int o) {
- int steps;
- int rows;
- int dx;
+ /**
+ * Checks, wether this move is possible or not.
+ */
+ public boolean validMove(int t, int o) {
+ int steps;
+ int rows;
+ int dx;
- /* Must be here */
- white_rochades_small = false;
- white_rochades_big = false;
- black_rochades_small = false;
- black_rochades_big = false;
+ /* Must be here */
+ white_rochades_small = false;
+ white_rochades_big = false;
+ black_rochades_small = false;
+ black_rochades_big = false;
- if (t == o)
- return false;
+ if (t == o)
+ return false;
- if (isSamePiece(t, o))
- return false;
+ if (isSamePiece(t, o))
+ return false;
- if (getType(o) == EMPTY)
- return false;
+ if (getType(o) == EMPTY)
+ return false;
- /*
- * 00 01 02 03 04 05 06 07
- * 08 09 10 11 12 13 14 15
- * 16 17 18 19 20 21 22 23
- * 24 25 26 27 28 29 30 31
- * 32 33 34 35 36 37 38 39
- * 40 41 42 43 44 45 46 47
- * 48 49 50 51 52 53 54 55
- * 56 57 58 59 60 61 62 63
- */
+ /*
+ * 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22
+ * 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
+ * 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
+ */
- steps = Math.abs(t - o);
- rows = Math.abs(t / 8 - o / 8);
+ steps = Math.abs(t - o);
+ rows = Math.abs(t / 8 - o / 8);
- switch (getType(o)) {
- case ROOK:
- if (steps < 8 && rows == 0) {
- if (t > o)
- for (dx = o + 1; dx < t; dx++) {
- if (getColor(dx) != null) {
- return false;
- }
- }
- else
- for (dx = o - 1; dx > t; dx--) {
- if (getColor(dx) != null) {
- return false;
- }
- }
- return true;
- }
- if (steps % 8 == 0) {
- if (t > o) {
- for (dx = o + 8; dx < t; dx += 8) {
- if (getColor(dx) != null)
- return false;
- }
- } else {
- for (dx = o - 8; dx > t; dx -= 8) {
- if (getColor(dx) != null)
- return false;
- }
- }
- if (steps == 8 && rows == 1)
- return true;
- if (steps == 16 && rows == 2)
- return true;
- if (steps == 24 && rows == 3)
- return true;
- if (steps == 32 && rows == 4)
- return true;
- if (steps == 40 && rows == 5)
- return true;
- if (steps == 48 && rows == 6)
- return true;
- if (steps == 56 && rows == 7)
- return true;
- }
- break;
- case KNIGHT:
- /* works fine */
- if (steps == 6 && rows == 1)
- return true;
- if (steps == 10 && rows == 1)
- return true;
- if (steps == 15 && rows == 2)
- return true;
- if (steps == 17 && rows == 2)
- return true;
- break;
- case BISHOP:
- if (steps % 7 == 0) {
- if (t > o) {
- for (dx = o + 7; dx < t; dx += 7) {
- if (getColor(dx) != null)
- return false;
- }
- } else {
- for (dx = o - 7; dx > t; dx -= 7) {
- if (getColor(dx) != null)
- return false;
- }
- }
- if (steps == 7 && rows == 1)
- return true;
- if (steps == 14 && rows == 2)
- return true;
- if (steps == 21 && rows == 3)
- return true;
- if (steps == 28 && rows == 4)
- return true;
- if (steps == 35 && rows == 5)
- return true;
- if (steps == 42 && rows == 6)
- return true;
- if (steps == 49 && rows == 7)
- return true;
- }
- if (steps % 9 == 0) {
- if (t > o) {
- for (dx = o + 9; dx < t; dx += 9) {
- if (getColor(dx) != null)
- return false;
- }
- } else {
- for (dx = o - 9; dx > t; dx -= 9) {
- if (getColor(dx) != null)
- return false;
- }
- }
- if (steps == 9 && rows == 1)
- return true;
- if (steps == 18 && rows == 2)
- return true;
- if (steps == 27 && rows == 3)
- return true;
- if (steps == 36 && rows == 4)
- return true;
- if (steps == 45 && rows == 5)
- return true;
- if (steps == 54 && rows == 6)
- return true;
- if (steps == 63 && rows == 7)
- return true;
- }
- break;
+ switch (getType(o)) {
+ case ROOK:
+ if (steps < 8 && rows == 0) {
+ if (t > o)
+ for (dx = o + 1; dx < t; dx++) {
+ if (getColor(dx) != null) {
+ return false;
+ }
+ }
+ else
+ for (dx = o - 1; dx > t; dx--) {
+ if (getColor(dx) != null) {
+ return false;
+ }
+ }
+ return true;
+ }
+ if (steps % 8 == 0) {
+ if (t > o) {
+ for (dx = o + 8; dx < t; dx += 8) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ } else {
+ for (dx = o - 8; dx > t; dx -= 8) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ }
+ if (steps == 8 && rows == 1)
+ return true;
+ if (steps == 16 && rows == 2)
+ return true;
+ if (steps == 24 && rows == 3)
+ return true;
+ if (steps == 32 && rows == 4)
+ return true;
+ if (steps == 40 && rows == 5)
+ return true;
+ if (steps == 48 && rows == 6)
+ return true;
+ if (steps == 56 && rows == 7)
+ return true;
+ }
+ break;
+ case KNIGHT:
+ /* works fine */
+ if (steps == 6 && rows == 1)
+ return true;
+ if (steps == 10 && rows == 1)
+ return true;
+ if (steps == 15 && rows == 2)
+ return true;
+ if (steps == 17 && rows == 2)
+ return true;
+ break;
+ case BISHOP:
+ if (steps % 7 == 0) {
+ if (t > o) {
+ for (dx = o + 7; dx < t; dx += 7) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ } else {
+ for (dx = o - 7; dx > t; dx -= 7) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ }
+ if (steps == 7 && rows == 1)
+ return true;
+ if (steps == 14 && rows == 2)
+ return true;
+ if (steps == 21 && rows == 3)
+ return true;
+ if (steps == 28 && rows == 4)
+ return true;
+ if (steps == 35 && rows == 5)
+ return true;
+ if (steps == 42 && rows == 6)
+ return true;
+ if (steps == 49 && rows == 7)
+ return true;
+ }
+ if (steps % 9 == 0) {
+ if (t > o) {
+ for (dx = o + 9; dx < t; dx += 9) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ } else {
+ for (dx = o - 9; dx > t; dx -= 9) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ }
+ if (steps == 9 && rows == 1)
+ return true;
+ if (steps == 18 && rows == 2)
+ return true;
+ if (steps == 27 && rows == 3)
+ return true;
+ if (steps == 36 && rows == 4)
+ return true;
+ if (steps == 45 && rows == 5)
+ return true;
+ if (steps == 54 && rows == 6)
+ return true;
+ if (steps == 63 && rows == 7)
+ return true;
+ }
+ break;
- case QUEEN:
- if (steps < 8 && rows == 0) {
- if (t > o)
- for (dx = o + 1; dx < t; dx++) {
- if (getColor(dx) != null)
- return false;
- }
- else
- for (dx = o - 1; dx > t; dx--) {
- if (getColor(dx) != null)
- return false;
- }
- return true;
- }
+ case QUEEN:
+ if (steps < 8 && rows == 0) {
+ if (t > o)
+ for (dx = o + 1; dx < t; dx++) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ else
+ for (dx = o - 1; dx > t; dx--) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ return true;
+ }
- if (steps % 8 == 0) {
- if (t > o) {
- for (dx = o + 8; dx < t; dx += 8) {
- if (getColor(dx) != null)
- return false;
- }
- } else {
- for (dx = o - 8; dx > t; dx -= 8) {
- if (getColor(dx) != null)
- return false;
- }
- }
+ if (steps % 8 == 0) {
+ if (t > o) {
+ for (dx = o + 8; dx < t; dx += 8) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ } else {
+ for (dx = o - 8; dx > t; dx -= 8) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ }
- if (steps == 8 && rows == 1)
- return true;
- if (steps == 16 && rows == 2)
- return true;
- if (steps == 24 && rows == 3)
- return true;
- if (steps == 32 && rows == 4)
- return true;
- if (steps == 40 && rows == 5)
- return true;
- if (steps == 48 && rows == 6)
- return true;
- if (steps == 56 && rows == 7)
- return true;
- }
- if (steps % 7 == 0) {
- if (t > o) {
- for (dx = o + 7; dx < t; dx += 7) {
- if (getColor(dx) != null)
- return false;
- }
- } else {
- for (dx = o - 7; dx > t; dx -= 7) {
- if (getColor(dx) != null)
- return false;
- }
- }
- if (steps == 7 && rows == 1)
- return true;
- if (steps == 14 && rows == 2)
- return true;
- if (steps == 21 && rows == 3)
- return true;
- if (steps == 28 && rows == 4)
- return true;
- if (steps == 35 && rows == 5)
- return true;
- if (steps == 42 && rows == 6)
- return true;
- if (steps == 49 && rows == 7)
- return true;
- }
+ if (steps == 8 && rows == 1)
+ return true;
+ if (steps == 16 && rows == 2)
+ return true;
+ if (steps == 24 && rows == 3)
+ return true;
+ if (steps == 32 && rows == 4)
+ return true;
+ if (steps == 40 && rows == 5)
+ return true;
+ if (steps == 48 && rows == 6)
+ return true;
+ if (steps == 56 && rows == 7)
+ return true;
+ }
+ if (steps % 7 == 0) {
+ if (t > o) {
+ for (dx = o + 7; dx < t; dx += 7) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ } else {
+ for (dx = o - 7; dx > t; dx -= 7) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ }
+ if (steps == 7 && rows == 1)
+ return true;
+ if (steps == 14 && rows == 2)
+ return true;
+ if (steps == 21 && rows == 3)
+ return true;
+ if (steps == 28 && rows == 4)
+ return true;
+ if (steps == 35 && rows == 5)
+ return true;
+ if (steps == 42 && rows == 6)
+ return true;
+ if (steps == 49 && rows == 7)
+ return true;
+ }
- if (steps % 9 == 0) {
- if (t > o) {
- for (dx = o + 9; dx < t; dx += 9) {
- if (getColor(dx) != null)
- return false;
- }
- } else {
- for (dx = o - 9; dx > t; dx -= 9) {
- if (getColor(dx) != null)
- return false;
- }
- }
- if (steps == 9 && rows == 1)
- return true;
- if (steps == 18 && rows == 2)
- return true;
- if (steps == 27 && rows == 3)
- return true;
- if (steps == 36 && rows == 4)
- return true;
- if (steps == 45 && rows == 5)
- return true;
- if (steps == 54 && rows == 6)
- return true;
- if (steps == 63 && rows == 7)
- return true;
- }
- break;
+ if (steps % 9 == 0) {
+ if (t > o) {
+ for (dx = o + 9; dx < t; dx += 9) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ } else {
+ for (dx = o - 9; dx > t; dx -= 9) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ }
+ if (steps == 9 && rows == 1)
+ return true;
+ if (steps == 18 && rows == 2)
+ return true;
+ if (steps == 27 && rows == 3)
+ return true;
+ if (steps == 36 && rows == 4)
+ return true;
+ if (steps == 45 && rows == 5)
+ return true;
+ if (steps == 54 && rows == 6)
+ return true;
+ if (steps == 63 && rows == 7)
+ return true;
+ }
+ break;
- case KING:
- if ((steps == 1) && (rows == 0))
- return true;
+ case KING:
+ if ((steps == 1) && (rows == 0))
+ return true;
- if ((steps == 8) && (rows == 1))
- return true;
+ if ((steps == 8) && (rows == 1))
+ return true;
- if ((steps == 7) && (rows == 1))
- return true;
+ if ((steps == 7) && (rows == 1))
+ return true;
- if ((steps == 9) && (rows == 1))
- return true;
+ if ((steps == 9) && (rows == 1))
+ return true;
- if ((steps == 2) && (rows == 0)) {
- if (isWhiteKing(o)) { /* White: Rochade */
- if (isWhiteKing(60) && isEmpty(61) && isEmpty(62) && (t == 62)) {
- if ((getType(63) == ROOK) && isWhite(63)) {
- white_rochades_small = true;
- return true;
- }
- }
+ if ((steps == 2) && (rows == 0)) {
+ if (isWhiteKing(o)) { /* White: Rochade */
+ if (isWhiteKing(60) && isEmpty(61) && isEmpty(62) && (t == 62)) {
+ if ((getType(63) == ROOK) && isWhite(63)) {
+ white_rochades_small = true;
+ return true;
+ }
+ }
- if (isWhiteKing(60) && isEmpty(59) && isEmpty(58) && isEmpty(57) && (t == 58)) {
- if ((getType(56) == ROOK) && isWhite(56)) {
- white_rochades_big = true;
- return true;
- }
- }
- }
+ if (isWhiteKing(60) && isEmpty(59) && isEmpty(58) && isEmpty(57) && (t == 58)) {
+ if ((getType(56) == ROOK) && isWhite(56)) {
+ white_rochades_big = true;
+ return true;
+ }
+ }
+ }
- if (isBlackKing(o)) { /* Black: Rochade */
- if (isBlackKing(4) && isEmpty(5) && isEmpty(6) && (t == 6)) {
- if ((getType(7) == ROOK) && isBlack(7)) {
- black_rochades_small = true;
- return true;
- }
- }
+ if (isBlackKing(o)) { /* Black: Rochade */
+ if (isBlackKing(4) && isEmpty(5) && isEmpty(6) && (t == 6)) {
+ if ((getType(7) == ROOK) && isBlack(7)) {
+ black_rochades_small = true;
+ return true;
+ }
+ }
- if (isBlackKing(4) && isEmpty(3) && isEmpty(2) && isEmpty(1) && (t == 2)) {
- if ((getType(0) == ROOK) && isBlack(0)) {
- black_rochades_big = true;
- return true;
- }
- }
- }
- }
- break;
+ if (isBlackKing(4) && isEmpty(3) && isEmpty(2) && isEmpty(1) && (t == 2)) {
+ if ((getType(0) == ROOK) && isBlack(0)) {
+ black_rochades_big = true;
+ return true;
+ }
+ }
+ }
+ }
+ break;
- case PAWN:
- if (getColor(o).equals("white")) {
- if (steps == 7 && rows == 1 && isEnemy(t, o) && t < o)
- return true;
+ case PAWN:
+ if (getColor(o).equals("white")) {
+ if (steps == 7 && rows == 1 && isEnemy(t, o) && t < o)
+ return true;
- if (steps == 9 && rows == 1 && isEnemy(t, o) && t < o)
- return true;
- } else {
- if (steps == 7 && rows == 1 && isEnemy(t, o) && t > o)
- return true;
+ if (steps == 9 && rows == 1 && isEnemy(t, o) && t < o)
+ return true;
+ } else {
+ if (steps == 7 && rows == 1 && isEnemy(t, o) && t > o)
+ return true;
- if (steps == 9 && rows == 1 && isEnemy(t, o) && t > o)
- return true;
- }
+ if (steps == 9 && rows == 1 && isEnemy(t, o) && t > o)
+ return true;
+ }
- if (steps % 8 == 0) {
- if (t > o) {
- for (dx = o + 8; dx <= t; dx += 8) {
- if (getColor(dx) != null)
- return false;
- }
- } else {
- for (dx = o - 8; dx >= t; dx -= 8) {
- if (getColor(dx) != null)
- return false;
- }
- }
+ if (steps % 8 == 0) {
+ if (t > o) {
+ for (dx = o + 8; dx <= t; dx += 8) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ } else {
+ for (dx = o - 8; dx >= t; dx -= 8) {
+ if (getColor(dx) != null)
+ return false;
+ }
+ }
- if (steps == 8 && rows == 1) {
- if (getColor(o).equals("white") && t < o)
- return true;
- if (getColor(o).equals("black") && t > o)
- return true;
- }
+ if (steps == 8 && rows == 1) {
+ if (getColor(o).equals("white") && t < o)
+ return true;
+ if (getColor(o).equals("black") && t > o)
+ return true;
+ }
- if (steps == 16 && rows == 2 && (o >= 8 && o <= 15)) {
- if (getColor(o).equals("white") && t < o)
- return true;
- if (getColor(o).equals("black") && t > o)
- return true;
- }
+ if (steps == 16 && rows == 2 && (o >= 8 && o <= 15)) {
+ if (getColor(o).equals("white") && t < o)
+ return true;
+ if (getColor(o).equals("black") && t > o)
+ return true;
+ }
- if (steps == 16 && rows == 2 && (o >= 48 && o <= 55)) {
- if (getColor(o).equals("white") && t < o)
- return true;
- if (getColor(o).equals("black") && t > o)
- return true;
- }
- }
- break;
- }
- return false;
- }
+ if (steps == 16 && rows == 2 && (o >= 48 && o <= 55)) {
+ if (getColor(o).equals("white") && t < o)
+ return true;
+ if (getColor(o).equals("black") && t > o)
+ return true;
+ }
+ }
+ break;
+ }
+ return false;
+ }
- /**
- * This method must be called immediately after isValidMove(t, o)
- */
- boolean rochade() {
- if (white_rochades_small) {
- setPiece(61, getPiece(63));
- setPiece(63, new Piece(null, null, EMPTY, 0));
- return true;
- }
+ /**
+ * This method must be called immediately after isValidMove(t, o)
+ */
+ boolean rochade() {
+ if (white_rochades_small) {
+ setPiece(61, getPiece(63));
+ setPiece(63, new Piece(null, null, EMPTY, 0));
+ return true;
+ }
- if (white_rochades_big) {
- setPiece(59, getPiece(56));
- setPiece(56, new Piece(null, null, EMPTY, 0));
- return true;
- }
+ if (white_rochades_big) {
+ setPiece(59, getPiece(56));
+ setPiece(56, new Piece(null, null, EMPTY, 0));
+ return true;
+ }
- if (black_rochades_small) {
- setPiece(5, getPiece(7));
- setPiece(7, new Piece(null, null, EMPTY, 0));
- return true;
- }
+ if (black_rochades_small) {
+ setPiece(5, getPiece(7));
+ setPiece(7, new Piece(null, null, EMPTY, 0));
+ return true;
+ }
- if (black_rochades_big) {
- setPiece(3, getPiece(0));
- setPiece(0, new Piece(null, null, EMPTY, 0));
- return true;
- }
+ if (black_rochades_big) {
+ setPiece(3, getPiece(0));
+ setPiece(0, new Piece(null, null, EMPTY, 0));
+ return true;
+ }
- return false;
- }
+ return false;
+ }
- /**
- * checks, whether color is in check or not.
- */
- public boolean isCheck(String color) {
- int i;
- int wking;
- int bking;
+ /**
+ * checks, whether color is in check or not.
+ */
+ public boolean isCheck(String color) {
+ int i;
+ int wking;
+ int bking;
- wking = bking = -1;
+ wking = bking = -1;
- for (i = 0; i < 64; i++) {
- if (isWhiteKing(i)) {
- wking = i;
- }
- if (isBlackKing(i)) {
- bking = i;
- }
- }
+ for (i = 0; i < 64; i++) {
+ if (isWhiteKing(i)) {
+ wking = i;
+ }
+ if (isBlackKing(i)) {
+ bking = i;
+ }
+ }
- // returns 64 false positives
- if (wking == -1 || bking == -1)
- return true;
+ // returns 64 false positives
+ if (wking == -1 || bking == -1)
+ return true;
- if (color.equals("white")) {
- for (i = 0; i < 64; i++)
- if (validMove(wking, i)) {
- return true;
- }
+ if (color.equals("white")) {
+ for (i = 0; i < 64; i++)
+ if (validMove(wking, i)) {
+ return true;
+ }
- return false;
- }
+ return false;
+ }
- if (color.equals("black")) {
- for (i = 0; i < 64; i++)
- if (validMove(bking, i)) {
- return true;
- }
+ if (color.equals("black")) {
+ for (i = 0; i < 64; i++)
+ if (validMove(bking, i)) {
+ return true;
+ }
- return false;
- }
- return false;
- }
+ return false;
+ }
+ return false;
+ }
- /**
- * simulates a "valid" move or returns false. all changes are relative to
- * pieces and will not be painted. This method sets internal variables for
- * the rochade() method, which will be overwritten.
- */
- public boolean simulateMove(int t, int o) {
- if (!validMove(t, o)) {
- return false;
- }
+ /**
+ * simulates a "valid" move or returns false. all changes are relative to
+ * pieces and will not be painted. This method sets internal variables for
+ * the rochade() method, which will be overwritten.
+ */
+ public boolean simulateMove(int t, int o) {
+ if (!validMove(t, o)) {
+ return false;
+ }
- push(getPiece(t), t, getPiece(o), o);
+ push(getPiece(t), t, getPiece(o), o);
- if (getType(o) == PAWN) {
- if (isBlack(o) && t >= 56)
- setPiece(o, new Piece(black_queen));
+ if (getType(o) == PAWN) {
+ if (isBlack(o) && t >= 56)
+ setPiece(o, new Piece(black_queen));
- if (isWhite(o) && t <= 7)
- setPiece(o, new Piece(white_queen));
- }
+ if (isWhite(o) && t <= 7)
+ setPiece(o, new Piece(white_queen));
+ }
- setPiece(t, new Piece(getPiece(o)));
- setPiece(o, new Piece(null, null, EMPTY, 0));
+ setPiece(t, new Piece(getPiece(o)));
+ setPiece(o, new Piece(null, null, EMPTY, 0));
- if (isCheck(getColor(t))) {
- /* restore current position */
- if (UNDO_DEBUG)
- print("UNDO", t, o, 0);
- undo();
- return false;
- }
+ if (isCheck(getColor(t))) {
+ /* restore current position */
+ if (UNDO_DEBUG)
+ print("UNDO", t, o, 0);
+ undo();
+ return false;
+ }
- return true;
- }
+ return true;
+ }
- /**
- * performs a "valid" move or returns false. all changes are relative to
- * board_pieces and will be painted.
- */
- public boolean doMove(int t, int o) {
- if (!validMove(t, o)) {
- return false;
- }
+ /**
+ * performs a "valid" move or returns false. all changes are relative to
+ * board_pieces and will be painted.
+ */
+ public boolean doMove(int t, int o) {
+ if (!validMove(t, o)) {
+ return false;
+ }
- push(getPiece(t), t, getPiece(o), o);
+ push(getPiece(t), t, getPiece(o), o);
- if (getType(o) == PAWN) {
- if (isBlack(o) && t >= 56)
- setPiece(o, new Piece(black_queen));
+ if (getType(o) == PAWN) {
+ if (isBlack(o) && t >= 56)
+ setPiece(o, new Piece(black_queen));
- if (isWhite(o) && t <= 7)
- setPiece(o, new Piece(white_queen));
- }
+ if (isWhite(o) && t <= 7)
+ setPiece(o, new Piece(white_queen));
+ }
- setPiece(t, new Piece(getPiece(o)));
- setPiece(o, new Piece(null, null, EMPTY, 0));
+ setPiece(t, new Piece(getPiece(o)));
+ setPiece(o, new Piece(null, null, EMPTY, 0));
- if (rochade())
- System.out.println("Rochade");
+ if (rochade())
+ System.out.println("Rochade");
- if (isCheck(getColor(t))) {
- // restore current positions
- if (UNDO_DEBUG)
- print("UNDO", t, o, 0);
- undo();
- return false;
- }
+ if (isCheck(getColor(t))) {
+ // restore current positions
+ if (UNDO_DEBUG)
+ print("UNDO", t, o, 0);
+ undo();
+ return false;
+ }
- board_pieces = getPieces();
- repaint();
+ board_pieces = getPieces();
+ repaint();
- moveNr = stack.size();
+ moveNr = stack.size();
- return true;
- }
+ return true;
+ }
- /**
- * converts the internal representation into normal chess notation and
- * writes it to stdout
- */
- public void print(String s, int t, int o, int value) {
- int row1, col1, row2, col2;
+ /**
+ * converts the internal representation into normal chess notation and
+ * writes it to stdout
+ */
+ public void print(String s, int t, int o, int value) {
+ int row1, col1, row2, col2;
- row1 = o / 8;
- col1 = o - (8 * row1);
+ row1 = o / 8;
+ col1 = o - (8 * row1);
- row2 = t / 8;
- col2 = t - (8 * row2);
+ row2 = t / 8;
+ col2 = t - (8 * row2);
- System.out.printf("%s: %C%d-%c%d = %3d%n", s, ('A') + col1, 8 - row1, ('A') + col2, 8 - row2, value);
- }
+ System.out.printf("%s: %C%d-%c%d = %3d%n", s, ('A') + col1, 8 - row1, ('A') + col2, 8 - row2, value);
+ }
}