public IList<Key> GetPossibleMoves(Key currentKey)
{
BoardPosition currentPosition = _board.GetPosition(currentKey);
List<BoardPosition> potentialPositions = GetPotentialMoves(currentPosition);
List<BoardPosition> validPositions = GetValidMoves(potentialPositions);
var results = (from vp in validPositions
select _board.GetKey(vp)).ToList();
return results;
}
public int CountSequencesFromKey(Key key, KeypadSequence sequence)
{
if (!sequence.IsValidSequence())
return 0;
if (sequence.Length == _pathSize)
return 1;
int count = 0;
var possibleMoves = this._moveStrategy.GetPossibleMoves(key);
foreach (var move in possibleMoves)
count += CountSequencesFromKey(move, _board.KeyPress(move, new KeypadSequence(sequence)));
return count;
}
public BoardPosition GetPosition(Key key)
{
for (int y = 0; y <= board.GetUpperBound(0); y++)
{
for (int x = 0; x <= board.GetUpperBound(1); x++)
{
Key k = this.GetKeyInternal(x, y);
if (k == key)
return new BoardPosition() { X = x, Y = y };
}
}
throw new KeyNotFoundException("Key was not found on board: " + key.Name);
}
public KeypadSequence Add(Key key)
{
_keySequence.Add(key);
return this;
}
public KeypadSequence KeyPress(Key k, KeypadSequence sequence)
{
sequence.Add(k);
return sequence;
}
