private static bool BigSquareCompleteCheck(GridSquareScript[] gridSquares, int square)
{
int[] bigSquares = GridMaths.GridBigSquareIndices(square);
int[] numbers = GridsAtIndexes(bigSquares, gridSquares).Where(x => x.Number > 0).Select(x => x.Number).Distinct().ToArray();
print($"Big square check - Numbers count: {numbers.Length} => {string.Join(",", numbers)}");
return(numbers.Length == 9);
}
private static int[] ExistingNumbersInBigSquare(GridSquareScript[] gridSquares, int big)
{
int[] allNumbers = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
GridSquareScript[] bigSquareData = GridsAtIndexes(GridMaths.GridBigSquareIndices(big), gridSquares);
int[] remaining = allNumbers.Intersect(bigSquareData.Where(x => x.Number != 0 && !x.IsTarget).Select(s => s.Number)).ToArray();
print($"BIG SQUARE {big} existing numbers: {string.Join(",", remaining)}");
return(remaining);
}
//TODO - NEEDED?
private static int[] MissingNumbersInBigSquare(GridSquareScript[] gridSquares, int big)
{
int[] allNumbers = { 1, 2, 3, 4, 5, 6, 7, 8, 9 };
GridSquareScript[] bigSquareData = GridsAtIndexes(GridMaths.GridBigSquareIndices(big), gridSquares);
int[] remaining = allNumbers.Except(bigSquareData.Select(s => s.Number).Where(x => x != 0)).ToArray();
print($"BIG SQUARE remaining numbers: {string.Join(",", remaining)}");
return(remaining);
}
public void HighLightBigSquare(int index)
{
int bigSquare = GridMaths.BigSquareForSquare(index);
int[] bigSquares = GridMaths.GridBigSquareIndices(bigSquare);
for (int i = 0; i < bigSquares.Length; i++)
{
gridSquares[bigSquares[i]].HighlightSquare(index);
}
}
private static int[] GridEmptyIntersectIndices(GridSquareScript[] gridSquares, GridSquareScript selection)
{
int square = GridMaths.BigSquareForSquare(selection.Index);
GridSquareScript[] emptySquares = EmptyGridsAtIndexes(GridMaths.GridBigSquareIndices(square), gridSquares, selection);
int[] emptyIndices = EmptyGridsAtIndexes(GridMaths.GridBigSquareIndices(square), gridSquares, selection).Select(x => x.Index).Distinct().ToArray();
//check how many row are in the empty indicies
int[] emptyCols = emptyIndices.Where(x => !DoesColumnContainNumber(GridMaths.ColumnForSquare(x), selection, gridSquares)).ToArray();
int[] emptyRows = emptyIndices.Where(x => !DoesRowContainNumber(GridMaths.RowForSquare(x), selection, gridSquares)).ToArray();
int[] intersectIndices = emptyCols.Intersect(emptyRows).ToArray();
print($"GridEmptyIntersectIndices: ({string.Join(",", emptyIndices)}) empty rows: {string.Join(",", emptyRows)} cols: {string.Join(",", emptyCols)} intersect: {string.Join(",", intersectIndices)}");
return(emptyCols.Intersect(emptyRows).ToArray());
}
private static bool DoesSquareForceColumnNumber(int big, GridSquareScript selection, int col, GridSquareScript[] gridSquares)
{
print($"DoesSquare {big} ForceColumn {col} Number: {selection.Number}");
bool numberCheck = DoesBigSquareContainNumber(big, selection, gridSquares);
if (DoesBigSquareContainNumber(big, selection, gridSquares))
{
return(false);
}
int[] emptyIndices = EmptyGridsAtIndexes(GridMaths.GridBigSquareIndices(big), gridSquares, selection).Select(x => x.Index).Distinct().ToArray();
int[] noColIndices = emptyIndices.Where(x => !DoesColumnContainNumber(GridMaths.ColumnForSquare(x), selection, gridSquares)).ToArray();
int[] noRowIndices = emptyIndices.Where(x => !DoesRowContainNumber(GridMaths.RowForSquare(x), selection, gridSquares)).ToArray();
int[] forcedColumns = noColIndices.Intersect(noRowIndices).Select(GridMaths.ColumnForSquare).Distinct().ToArray();
print($"Empty indices in square {big} = {string.Join(",", emptyIndices)} - no col indices ({string.Join(",", noColIndices)}) no row indices ({string.Join(",", noRowIndices)}) = {string.Join(",", forcedColumns)} = {col}");
return(forcedColumns.Length == 1 && forcedColumns[0] == col);
}
private static bool DoesBigSquareContainNumber(int big, GridSquareScript selection, GridSquareScript[] gridSquares)
{
GridSquareScript[] bigSquareSquares = GridsAtIndexes(GridMaths.GridBigSquareIndices(big), gridSquares);
return(bigSquareSquares.Any(x => x.Number == selection.Number && !x.IsTarget)); //x.Index != selection.Index);
}