/**
* Computes all the additional fields; is done after the initial search to optimize finding
* doubles.
*
* @param finder
*/
public void computeFields(SudokuStepFinder finder) {
this.buddies = new SudokuSet();
for (int i = 1; i <= 9; i++) {
if ((candidates & Sudoku2.MASKS[i]) != 0) {
SudokuSet sudokuCandidates = finder.getCandidates()[i];
indicesPerCandidat[i] = new SudokuSet(indices);
indicesPerCandidat[i].and(sudokuCandidates);
buddiesPerCandidat[i] = new SudokuSet();
Sudoku2.getBuddies(indicesPerCandidat[i], buddiesPerCandidat[i]);
buddiesPerCandidat[i].andNot(indices);
buddiesPerCandidat[i].and(finder.getCandidates()[i]);
buddiesAlsPerCandidat[i] = new SudokuSet(buddiesPerCandidat[i]);
buddiesAlsPerCandidat[i].or(indicesPerCandidat[i]);
buddies.or(buddiesPerCandidat[i]);
}
}
}
