// protected MoveValuePair handleTerminal(Position position, boolean maxTurn) {
// MoveValuePair finalMove = new MoveValuePair();
// if (position.isTerminal() && position.isMate()) {
// this.terminalFound = position.isTerminal();
// finalMove.eval = (maxTurn ? BE_MATED : MATE);
// } else if (position.isTerminal() && position.isStaleMate())
// finalMove.eval = 0;
// else {
// finalMove.eval = (int) ( (position.getMaterial() + position.getDomination()));
// }
//// System.out.print(finalMove.eval + " ");
// return finalMove;
// }
protected LinkedList<MoveValuePair> getCapturingSortedMoves(Position position, boolean maxTurn)
throws IllegalMoveException {
LinkedList<MoveValuePair> sortedMoves = new LinkedList<MoveValuePair>();
short[] moves = position.getAllCapturingMoves();
MoveValuePair theMove = null;
ASCENDING = maxTurn ? false : true;
for (short move : moves) {
position.doMove(move);
if (p2tte.containsKey(position.getHashCode())) {
theMove = new MoveValuePair(move, p2tte.get(position.getHashCode()).eval);
} else {
// for max turn, I assign worst values those unvisited positions
// theMove = new MoveValuePair(move, maxTurn ? BE_MATED : MATE);
int eval = (int) ((maxTurn ? -1 : 1) * (position.getMaterial() + position.getDomination()));
theMove = new MoveValuePair(move, eval);
}
position.undoMove();
sortedMoves.add(theMove);
}
Collections.sort(
sortedMoves,
new Comparator<MoveValuePair>() {
@Override
public int compare(MoveValuePair c1, MoveValuePair c2) {
// System.out.println(c1.eval + " vs " + c2.eval);
return (int) ((ASCENDING ? 1 : -1) * Math.signum(c1.eval - c2.eval)); // use your logic
}
});
return sortedMoves;
}
