/// <summary>
/// Expects a nested array with the first dimension representing the rows/columns, and the second dimension representing the hints for each of those rows/columns.
/// For example, [[1], [1,2], [3]] represents a HintCollection with 3 Rows or Columns, with "1" being the hint for the first, "1,2" for the second and "3" for the third.
/// </summary>
/// <param name="hints"></param>
/// <returns></returns>
public static HintCollection From2DArray(int[][] hints)
{
if (hints == null)
{
throw new ArgumentNullException(nameof(hints));
}
var coll = new HintCollection(hints.Length);
for (int i = 0; i < hints.Length; i++)
{
var data = hints[i];
if (data.Length == 0)
{
data = new int[] { 0 };
}
coll[i] = new int[data.Length];
for (int j = 0; j < data.Length; j++)
{
coll.SetHintValue(i, j, data[j]);
}
}
return(coll);
}
/// <summary>
/// Expects a string where each row/column is separated by space and each hint is separated by a comma.
/// For example, "1 1,2 3" will result in 3 Rows or Columns, with "1", "1,2" and "3" being the hints for those.
/// </summary>
/// <param name="hintString"></param>
/// <returns></returns>
public static HintCollection FromString(string hintString)
{
if (hintString == null)
{
throw new ArgumentNullException(nameof(hintString));
}
var elems = hintString.Split(new char[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
var coll = new HintCollection(elems.Length);
for (int i = 0; i < elems.Length; i++)
{
var data = elems[i].Split(',').Select(s => int.Parse(s)).ToArray();
coll[i] = data;
}
return(coll);
}
public Nonogram(string name, int rowCount, int colCount, HintCollection rowHints, HintCollection columnHints)
{
Name = name ?? string.Empty;
RowCount = rowCount;
ColumnCount = colCount;
RowHints = rowHints ?? throw new ArgumentNullException(nameof(rowHints));
ColumnHints = columnHints ?? throw new ArgumentNullException(nameof(columnHints));
if (RowHints.Count != RowCount)
{
throw new ArgumentException($"Expected hints for {RowCount} rows, but got {RowHints.Count} instead.");
}
if (ColumnHints.Count != ColumnCount)
{
throw new ArgumentException($"Expected hints for {ColumnCount} columns, but got {ColumnHints.Count} instead.");
}
}
public HintCollectionEnumerator(HintCollection hints)
{
_hints = hints;
_index = -1;
}
public Nonogram(string name, int rowCount, int colCount, string rowHintString, string colHintString) : this(name, rowCount, colCount, HintCollection.FromString(rowHintString), HintCollection.FromString(colHintString))
{
}
private static int MaxArrayLength(HintCollection hints) => hints.Count == 0 ? 0 : hints.Max(h => h.Length);
