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);
}