private bool Step(int xPos, int yPos)
{
_currentIteration++;
var currentSquare = _board.GetSquare(xPos, yPos);
currentSquare.HasVisited = true;
currentSquare.Value = _currentIteration;
Console.WriteLine(_board.Draw());
if (_board.IsCovered())
{
_resultPath = new List <Square>();
_resultPath.Add(_board.GetSquare(xPos, yPos));
return(true);
}
var moves = _move.GetMove(currentSquare);
foreach (var move in moves)
{
bool result = Step(move.X, move.Y);
if (result)
{
_resultPath.Add(currentSquare);
return(true);
}
}
Console.WriteLine(_board.Draw());
_currentIteration--;
currentSquare.Value = 0;
currentSquare.HasVisited = false;
return(false);
}
/// <summary>
/// Search predicate.
/// </summary>
/// <param name="square">square</param>
/// <returns>Returns true if a Square had visited.</returns>
private bool Visited(Square s)
{
return(_board.GetSquare(s.X, s.Y).HasVisited);
}