private void CalculateNumbersToShow(ref SudokuSchemaDTO sudoku)
{
int position = 0;
Random random = new Random();
while (position < NUMBER_OF_ELEMENTS)
{
int nextStp = random.Next(0, 5);
if (nextStp == 0)
{
continue;
}
position += nextStp;
if (position > NUMBER_OF_ELEMENTS)
{
break;
}
var divMod = position % 9;
var div = (position / 9);
BaseCellDTO cell = new BaseCellDTO(div, divMod);
sudoku.CellsToShow.Add(cell);
}
}
public SudokuSchemaDTO Generate()
{
SudokuSchemaDTO result = new SudokuSchemaDTO();
CalculateNumbersToShow(ref result);
GenerateBasicSchema(ref result);
return(result);
}
private void GenerateBasicSchema(ref SudokuSchemaDTO sudoku)
{
ColumnsLogic columns = new ColumnsLogic();
LinesLogic lines = new LinesLogic();
while (sudoku.Solution.Count < 9)
{
string row = lines.GenerateNew();
if (sudoku.Solution.Contains(row))
{
continue;
}
if (columns.IsValid(sudoku.Solution, row))
{
var chars = row.ToCharArray();
for (int i = 0; i < chars.Length; i++)
{
var cell = new CellDTO(sudoku.Solution.Count, i)
{
Value = chars[i].ToString(),
IsVisible = false,
};
foreach (var item in sudoku.CellsToShow)
{
if (item.Row != sudoku.Solution.Count)
{
continue;
}
if (item.Column != i)
{
continue;
}
cell.IsVisible = true;
}
sudoku.SolutionMatrix.Add(cell);
}
sudoku.Lines.Add(new LineDTO(sudoku.Solution.Count, row));
sudoku.Solution.Add(row);
}
}
}
