public BitBoard pawnAdvance(PieceColor mover) {
BitBoard result = new BitBoard(this);
if (mover.equals(PieceColor.WHITE)) {
result.bits >>>= 8;
} else {
result.bits <<= 8;
}
return result;
}
public BitBoard pawnCaptureWest(PieceColor mover) {
BitBoard result = new BitBoard(this);
if (mover.equals(PieceColor.WHITE)) {
result.bits >>>= 9;
} else {
result.bits <<= 7;
}
return result.intersection(NO_FILE_H);
}
public BitBoard negation() {
BitBoard result = new BitBoard();
result.bits = ~this.bits;
return result;
}