public BoardMoveFinder(Board board, IDawgWithAlphabet dawgWithAlphabet)
{
Board = board;
DawgWithAlphabet = dawgWithAlphabet;
BoardCrossCheckCollector = new BoardCrossCheckCollector(board, dawgWithAlphabet);
BoardWordRetriever = new BoardWordRetriever(Board);
}
private void SetBoardTileCrossChecks(BoardTile boardTile)
{
if (boardTile == null)
{
return;
}
HashSet <char> crossChecks = BoardCrossCheckCollector.GetCrossChecksForBoardTile(boardTile);
if (BoardTilesAndTheirCrossChecks.ContainsKey(boardTile))
{
BoardTilesAndTheirCrossChecks[boardTile] = crossChecks;
}
else
{
BoardTilesAndTheirCrossChecks.Add(boardTile, crossChecks);
}
}
public List <BoardWord> GetPossibleMoves(BoardTile anchor, IPlayerRack playerRack)
{
ValidWords = new List <BoardWord>();
PlayerRack = playerRack;
StartingBoardTile = anchor;
BoardTilesAndTheirCrossChecks = new Dictionary <BoardTile, HashSet <char> >();
HorizontalBoardWord wordToTheLeftOfAnchor = BoardWordRetriever.GetHorizontalWordTilesAtCoordinates(StartingBoardTile.X, StartingBoardTile.Y - 1);
string partialWord = wordToTheLeftOfAnchor?.GetWord() ?? "";
LeftPartIsAlreadyProvided = partialWord.Length > 0;
BoardTilesAndTheirCrossChecks.Add(StartingBoardTile, BoardCrossCheckCollector.GetCrossChecksForBoardTile(StartingBoardTile));
BoardAnchorCollector boardAnchorCollector = new();
BoardTileCollection boardAnchors = boardAnchorCollector.GetAnchors(Board);
DawgNode node = GetDawgNode(partialWord);
BoardNonAnchorTileCounter boardNonAnchorTileCounter = new(Board);
int limit = boardNonAnchorTileCounter.GetNumberOfNonAnchorTilesToTheLeftOfABoardTile(StartingBoardTile, boardAnchors);
LeftPart(node, limit, anchor);
return(ValidWords);
}