/// <summary>
/// spaces mast be
/// </summary>
/// <param name="cells">cells</param>
/// <param name="startPosition">start cell of word</param>
/// <param name="endPosition">end cell of word</param>
/// <param name="orientationIndex">index of orientation, to determine cell correctly</param>
/// <param name="orientation">word orientation <see cref="WordOrientation"/></param>
/// <returns>true - spaces exists, otherwise - not</returns>
public static bool DelimetedBySpaces(this List <Cell> cells, int startPosition, int endPosition, int orientationIndex, WordOrientation orientation)
{
Cell first, last;
bool firstIsValid = false, lastIsValid = false, enoughSpace = true;
foreach (var cell in cells)
{
if (cell.CharacterIsEmpty() || !cell.EnoughSpace)
{
continue;
}
var neighbors = cells.Where(c => (c.ColumnIndex == cell.GetNeighborColumn(NeighborOrientation.Horizontal) && c.RowIndex == cell.GetNeighborRow(NeighborOrientation.Horizontal)) ||
(c.ColumnIndex == cell.GetNeighborColumn(NeighborOrientation.Vertical) && c.RowIndex == cell.GetNeighborRow(NeighborOrientation.Vertical)) ||
(c.ColumnIndex == cell.GetNeighborColumn(NeighborOrientation.Diagonal) && c.RowIndex == cell.GetNeighborRow(NeighborOrientation.Diagonal)))
.ToList();
if (AllFilled(neighbors))
{
enoughSpace = cell.EnoughSpace = false;
}
}
if (orientation == WordOrientation.Horizontal)
{
first = cells.FirstOrDefault(cell => cell.ColumnIndex == startPosition - 1 && cell.RowIndex == orientationIndex);
last = cells.FirstOrDefault(cell => cell.ColumnIndex == endPosition && cell.RowIndex == orientationIndex);
if (first == null && last == null)
{
return(enoughSpace);
}
firstIsValid = first?.CharacterIsEmpty() ?? true;
lastIsValid = last?.CharacterIsEmpty() ?? true;
}
if (orientation == WordOrientation.Vertical)
{
first = cells.FirstOrDefault(cell => cell.RowIndex == startPosition - 1 && cell.ColumnIndex == orientationIndex);
last = cells.FirstOrDefault(cell => cell.RowIndex == endPosition && cell.ColumnIndex == orientationIndex);
if (first == null && last == null)
{
return(enoughSpace);
}
firstIsValid = first?.CharacterIsEmpty() ?? true;
lastIsValid = last?.CharacterIsEmpty() ?? true;
}
return(enoughSpace && firstIsValid && lastIsValid);
}
public WordSet(WordOrientation orientation)
{
mIncidentalWords = new HashSet<WordLocation>();
mOrientation = orientation;
}
