private Collection getMovesOfValue(int target) {
Collection moves = new HashSet();
for (Iterator i = itsMoves.iterator(); i.hasNext(); ) {
AbstractMove move = (AbstractMove) i.next();
if (move.getScore() == target) moves.add(move);
}
return moves;
}
private AbstractMove findHighestScoringMove() {
AbstractMove bestMove = new IllegalMove();
for (Iterator i = itsMoves.iterator(); i.hasNext(); ) {
AbstractMove move = (AbstractMove) i.next();
if (move.getScore() > bestMove.getScore()) bestMove = move;
}
return bestMove;
}
public void search(ChessBoard board, Player player) {
itsTable = new PositionHashTable();
itsMoves.clear();
itsPlayer = player;
itsBoard = board;
Collection moves = getAllMoves(player);
for (Iterator i = moves.iterator(); i.hasNext(); ) {
AbstractMove move = (AbstractMove) i.next();
move.getPiece().findMoves_safe();
move = player.movePiece(move);
itsBoard.recordPosition();
String positionCode = itsBoard.getPositionCode() + player.getColor();
int score = examineMove(move, player, itsSearchQuality, positionCode);
move.setScore(score);
itsMoves.add(move);
itsBoard.removeLastPosition();
player.reverseMove(move);
}
}