private static bool ColumnCompleteCheck(GridSquareScript[] gridSquares, int col)
{
int[] colSquares = GridMaths.GridColumnIndices(col);
int[] numbers = GridsAtIndexes(colSquares, gridSquares).Where(x => x.Number > 0).Select(x => x.Number).Distinct().ToArray();
print($"Column check - Numbers count: {numbers.Length} => {string.Join(",", numbers)}");
return(numbers.Length == 9);
}
private static bool CheckSeveralMissingColumn(GridSquareScript selection, GridSquareScript[] gridSquares)
{
int col = GridMaths.ColumnForSquare(selection.Index);
GridSquareScript[] emptyColSquares = EmptyGridsAtIndexes(GridMaths.GridColumnIndices(col), gridSquares, selection);
int[] emptyIndices = emptyColSquares.Select(x => x.Index).Distinct().ToArray();
int[] bigSquareIndices = emptyColSquares.Select(x => GridMaths.BigSquareForSquare(x.Index)).Distinct().ToArray();
List <int> usableSquares = new List <int>();
for (int i = 0; i < bigSquareIndices.Length; i++)
{
int box = bigSquareIndices[i];
if (!DoesBigSquareContainNumber(box, selection, gridSquares))
{
int[] checks = emptyIndices.Intersect(GridMaths.GridColumnInSquare(col, box)).ToArray();
if (checks.Length > 0)
{
usableSquares.AddRange(checks);
}
}
}
if (usableSquares.Count > 0)
{
return(usableSquares.All(x => DoesRowContainNumber(GridMaths.RowForSquare(x), selection, gridSquares)));
}
return(true);
}
private static int[] ExistingNumbersInColumn(GridSquareScript[] gridSquares, int col)
{
int[] allNumbers = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
GridSquareScript[] colData = GridsAtIndexes(GridMaths.GridColumnIndices(col), gridSquares);
int[] remaining = allNumbers.Intersect(colData.Where(x => x.Number != 0 && !x.IsTarget).Select(s => s.Number)).ToArray();
print($"COL {col} existing numbers: {string.Join(",", remaining)}");
return(remaining);
}
//TODO - NEEDED?
private static int[] MissingNumbersInColumn(GridSquareScript[] gridSquares, int col)
{
int[] allNumbers = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
GridSquareScript[] colData = GridsAtIndexes(GridMaths.GridColumnIndices(col), gridSquares);
int[] remaining = allNumbers.Except(colData.Select(s => s.Number).Where(x => x != 0)).ToArray();
print($"COL remaining numbers: {string.Join(",", remaining)}");
return(remaining);
}
public void HighlightColumn(int index)
{
int col = GridMaths.ColumnForSquare(index);
int[] colSquares = GridMaths.GridColumnIndices(col);
for (int i = 0; i < colSquares.Length; i++)
{
gridSquares[colSquares[i]].HighlightSquare(index);
}
}
private static bool DoesColumnContainNumber(int col, GridSquareScript selection, GridSquareScript[] gridSquares)
{
GridSquareScript[] colSquares = GridsAtIndexes(GridMaths.GridColumnIndices(col), gridSquares);
return(colSquares.Any(x => x.Number == selection.Number && !x.IsTarget));//x.Index != selection.Index);
}