internal Potential(Square square, Group group, Number number,PotentialTypes potentialType)
{
this.Square = square;
this.SquareGroup = group;
this.Number = number;
this.PotentialType = potentialType;
}
void Square_NumberBecameUnavailable(Number number)
{
CheckPotentialSquare(number);
}
/// <summary>
/// Checks for potential square
/// </summary>
/// <param name="number"></param>
void CheckPotentialSquare(Number number)
{
Square potentialSquare = GetPotentialSquare(number);
//If there is a potential, raise an event to let Sudoku class to add this potential to the list
if (potentialSquare != null)
PotentialFound(new Potential(potentialSquare, this, number, PotentialTypes.Group));
}
internal Square GetPotentialSquare(Number number)
{
//If there is already a square which has this number, ignore this alert
if (_Squares.Exists(s => s.Number.Equals(number)))
return null;
//Get the list of squares which are available
var list = _Squares.Where(s => s.IsAvailable && s.AvailableNumbers.Contains(number)).ToList();
//If there is only one, set it as potential
if (list.Count().Equals(1))
return list[0];
return null;
}