/**
* Creates a new Sudoku with a given{@link DifficultyLevel} and a given {@link GameMode}. The
* puzzles are taken from the cache if possible.<br>
* If no puzzle could be generated (or the generation was aborted), <code>null</code> is returned.
*
* @param level
* @param mode
* @return
*/
private Sudoku2 getSudoku(DifficultyLevel level, GameMode mode) {
if (mode == GameMode.LEARNING) {
// in LEARNING ANY puzzle is accepted, that has at least one Training Step in it
level = Options.getInstance().getDifficultyLevel(DifficultyType.EXTREME.ordinal());
}
String preGenSudoku = BackgroundGeneratorThread.getInstance().getSudoku(level, mode);
Sudoku2 tmpSudoku = null;
SudokuSolver solver = SudokuSolverFactory.getDefaultSolverInstance();
if (preGenSudoku == null) {
// no pregenerated puzzle available -> do it in GUI
GenerateSudokuProgressDialog dlg = new GenerateSudokuProgressDialog(null, true, level, mode);
dlg.setVisible(true);
tmpSudoku = dlg.getSudoku();
} else {
tmpSudoku = new Sudoku2();
tmpSudoku.setSudoku(preGenSudoku, true);
Sudoku2 solvedSudoku = tmpSudoku.clone();
solver.solve(
level,
solvedSudoku,
true,
null,
false,
Options.getInstance().solverSteps,
Options.getInstance().getGameMode());
tmpSudoku.setLevel(solvedSudoku.getLevel());
tmpSudoku.setScore(solvedSudoku.getScore());
}
if (tmpSudoku == null) {
// couldnt create anything or was aborted
return null;
}
if (mode == GameMode.LEARNING) {
// solve the sudoku up until the first trainingStep
List<SolutionStep> steps = solver.getSteps();
for (SolutionStep step : steps) {
if (step.getType().getStepConfig().isEnabledTraining()) {
break;
} else {
// System.out.println("doStep(): " + step.getType().getStepName());
solver.doStep(tmpSudoku, step);
}
}
}
return tmpSudoku;
}
