private static bool CheckSeveralMissingRow(GridSquareScript selection, GridSquareScript[] gridSquares)
{
int row = GridMaths.RowForSquare(selection.Index);
GridSquareScript[] emptyRowSquares = EmptyGridsAtIndexes(GridMaths.GridRowIndices(row), gridSquares, selection);
int[] emptyIndices = emptyRowSquares.Select(x => x.Index).Distinct().ToArray();
int[] bigSquareIndices = emptyIndices.Select(x => GridMaths.BigSquareForSquare(x)).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.GridRowInSquare(row, box)).ToArray();
if (checks.Length > 0)
{
usableSquares.AddRange(checks);
}
}
}
if (usableSquares.Count > 0)
{
return(usableSquares.All(x => DoesColumnContainNumber(GridMaths.ColumnForSquare(x), selection, gridSquares)));
}
return(true);
}
private static bool DoesRowInSquareHaveSpace(int row, int square, int index, GridSquareScript[] gridSquares)
{
GridSquareScript[] rowInSquareSquares = GridsAtIndexes(GridMaths.GridRowInSquare(row, square), gridSquares);
return(rowInSquareSquares.Any(x => x.Number == 0 && !x.IsTarget)); //x.Index != index);
}
