internal override IList <Move> GetMoves(Hex start, Board board)
{
Beetle beetle = (Beetle)top;
var validMoves = new List <Move>();
beetle.GetClimbingMoves(start, board, validMoves);
// empty spaces around are valid moves for a beetle stack
var hivailability = Hivailability.GetHivailability(board, start);
foreach (Hex hex in hivailability.EmptyNeighborHexes(start))
{
validMoves.Add(Move.GetMove(this.top, hex));
}
return(validMoves);
}
internal void GetClimbingMoves(Hex start, Board board, List <Move> validMoves)
{
// TODO check climbing gates
var hivailability = Hivailability.GetHivailability(board, start);
for (int i = 1; i < 7; i++)
{
Hex neighborHex = Neighborhood.GetNeighborHex(start, (Position)i);
if (hivailability.NeighborStatusArray[i] != Hivailability.NeighborStatus.Empty)
{
if (!IsDirectionClimbingBlocked(start, board, (Position)i))
{
validMoves.Add(Move.GetMove(this, neighborHex));
}
}
}
}
protected void GetSlideMovesRecursive(Hex current, Board board, int stopAtDepth, int depth, IList <Hex> visited, Dictionary <int, HashSet <Hex> > results)
{
Hivailability hivailableCenter = Hivailability.GetHivailability(board, current);
IList <Hex> blockedNeighbors = hivailableCenter.BlockedNeighborHexes(current);
IList <Hex> emptyNeighbors = hivailableCenter.EmptyNeighborHexes(current);
IList <Hex> nonEmptyNeighbors = hivailableCenter.NonEmptyNeighborHexes(current);
IList <Hex> emptyNeighborNeighbors = new List <Hex>();
foreach (Hex hex in nonEmptyNeighbors)
{
Hivailability hivailableNeighbor = Hivailability.GetHivailability(board, hex);
emptyNeighborNeighbors = hivailableNeighbor.EmptyNeighborHexes(hex).Concat(emptyNeighborNeighbors).ToList();
}
HashSet <Hex> validMovementHexes = new HashSet <Hex>(((emptyNeighborNeighbors.Intersect(emptyNeighbors)).Except(blockedNeighbors)).Except(visited));
visited.Add(current);
HashSet <Hex> validHexSet;
if (results.TryGetValue(depth, out validHexSet))
{
validHexSet.UnionWith(validMovementHexes);
}
else
{
results.Add(depth, validMovementHexes);
}
if (stopAtDepth == depth)
{
return;
}
foreach (Hex h in validMovementHexes)
{
if (!visited.Contains(h))
{
GetSlideMovesRecursive(h, board, stopAtDepth, depth + 1, visited, results);
}
}
}
