public Board(int[][] boardValues) {
this.squares = new Square[ROWS * COLUMNS];
byte piecesOnBoard = 0;
byte whitePiecesOnBoard = 0;
byte blackPiecesOnBoard = 0;
for (byte x = 0; x < COLUMNS; x++) {
for (byte y = 0; y < ROWS; y++) {
byte squareValue = (byte) boardValues[x][y];
byte index = index(x, y);
Square sq = this.squares[index] = new Square(squareValue);
if (!(sq.isEmpty())) {
piecesOnBoard++;
if (sq.getPiece().getColor() == ChessPieceColor.WHITE) {
whitePiecesOnBoard++;
} else {
blackPiecesOnBoard++;
}
}
}
}
this.piecesOnBoard = piecesOnBoard;
this.whitePiecesOnBoard = whitePiecesOnBoard;
this.blackPiecesOnBoard = blackPiecesOnBoard;
}
public ArrayList<Byte> validMoves(int index) {
Square square = this.get(index);
if (square.isEmpty()) {
return new ArrayList<Byte>();
}
ChessPiece pc = square.getPiece();
ChessPieceColor opponentColor =
(pc.getColor() == ChessPieceColor.WHITE) ? ChessPieceColor.BLACK : ChessPieceColor.WHITE;
ArrayList<Byte> validMoves = new ArrayList<Byte>(24);
switch (pc.getType()) {
case KNIGHT:
addValidMoves(ChessPieceMoves.KNIGHT_MOVES[index], pc, opponentColor, validMoves, false);
break;
case KING:
addValidMoves(ChessPieceMoves.KING_MOVES[index], pc, opponentColor, validMoves, false);
break;
case PAWN:
if (pc.getColor() == ChessPieceColor.WHITE) {
addValidMoves(
ChessPieceMoves.WHITE_PAWN_MOVES[index], pc, opponentColor, validMoves, false);
} else {
addValidMoves(
ChessPieceMoves.BLACK_PAWN_MOVES[index], pc, opponentColor, validMoves, false);
}
break;
case ROOK:
addValidMoves(ChessPieceMoves.ROOK_MOVES_DOWN[index], pc, opponentColor, validMoves, true);
addValidMoves(ChessPieceMoves.ROOK_MOVES_LEFT[index], pc, opponentColor, validMoves, true);
addValidMoves(ChessPieceMoves.ROOK_MOVES_RIGHT[index], pc, opponentColor, validMoves, true);
addValidMoves(ChessPieceMoves.ROOK_MOVES_UP[index], pc, opponentColor, validMoves, true);
break;
case QUEEN:
addValidMoves(ChessPieceMoves.QUEEN_MOVES_DOWN[index], pc, opponentColor, validMoves, true);
addValidMoves(ChessPieceMoves.QUEEN_MOVES_LEFT[index], pc, opponentColor, validMoves, true);
addValidMoves(
ChessPieceMoves.QUEEN_MOVES_RIGHT[index], pc, opponentColor, validMoves, true);
addValidMoves(ChessPieceMoves.QUEEN_MOVES_UP[index], pc, opponentColor, validMoves, true);
addValidMoves(
ChessPieceMoves.QUEEN_MOVES_DOWN_LEFT[index], pc, opponentColor, validMoves, true);
addValidMoves(
ChessPieceMoves.QUEEN_MOVES_DOWN_RIGHT[index], pc, opponentColor, validMoves, true);
addValidMoves(
ChessPieceMoves.QUEEN_MOVES_UP_LEFT[index], pc, opponentColor, validMoves, true);
addValidMoves(
ChessPieceMoves.QUEEN_MOVES_UP_RIGHT[index], pc, opponentColor, validMoves, true);
break;
}
return validMoves;
}
private void addValidMoves(
ChessPieceMoveSet moveSet,
ChessPiece pc,
ChessPieceColor opponentColor,
ArrayList<Byte> to,
boolean breakIfNotAdded) {
for (byte moveTo : moveSet) {
Square sq = this.get(moveTo);
if (sq.isEmpty()) {
to.add(moveTo);
} else if (sq.getPiece().getColor() == opponentColor) {
/*
pc is attacking the piece in this square
*/
ChessPiece attacked = sq.getPiece();
attacked.setAttackedValue(attacked.getAttackedValue() + pc.getActionValue());
} else if (sq.getPiece().getColor() != opponentColor) {
/*
pc is protecting the same colored piece in this square
*/
ChessPiece defended = sq.getPiece();
defended.setDefendedValue(defended.getDefendedValue() + pc.getActionValue());
} else {
if (breakIfNotAdded) {
break;
}
}
}
}