public void Generate(HintSelections hints)
{
// Take any solution for a clear grid
ClearGrid();
Candidate[] soln = solver.RandomSolution();
if (soln == null)
{
return;
}
int[,] ans = new int[Cells, Cells];
foreach (Candidate k in soln)
{
SudokuCandidate sc = (SudokuCandidate)k;
ans[sc.x, sc.y] = sc.n;
}
// Add clues until soluable
PlayMode = PlayModes.EditCell;
while (true)
{
SolveResult sr = solver.DoLogicalSolve(this, hints);
if (sr == SolveResult.SingleSolution)
{
break;
}
int x = Utils.Utils.Rnd(Cells);
int y = Utils.Utils.Rnd(Cells);
if (sr == SolveResult.NoSolutions)
{
ClearCell(x, y);
ClearCell(8 - x, 8 - y);
}
else
{
SetCell(x, y, ans[x, y]);
SetCell(Cells - x - 1, Cells - y - 1, ans[Cells - x - 1, Cells - y - 1]);
}
}
// Remove any clues where it remains soluable
for (int x = 0; x < Cells; ++x)
{
for (int y = 0; y < Cells; ++y)
{
ClearCell(x, y);
if (solver.DoLogicalSolve(this, hints) != SolveResult.SingleSolution)
{
SetCell(x, y, ans[x, y]);
}
}
}
Setup();
}
