public CtorHelper(WordGraph graph, Board board, Rack rack)
{
this.graph = graph;
this.board = board;
var validMap = new Dictionary <WordPart, PlayPath>();
var cells = board.GetStartCells();
var done = new HashSet <WordPart>();
foreach (Cell cell in cells)
{
foreach (Direction direction in new[] { Direction.Down, Direction.Right })
{
var otherDirection = direction == Direction.Down ? Direction.Right : Direction.Down;
var playable = new PlayableLetters(rack.Letters);
WordPartPair extraPair = GetBeforeAfter(board, cell, otherDirection, graph, playable);
WordPartPair mainPair = GetBeforeAfter(board, cell, direction, graph, playable);
if (playable.Count == 0)
{
continue;
}
foreach (char letter in playable)
{
WordPart mainPart = mainPair.Play(cell, letter) ?? new WordPart(letter.ToString(), cell, direction);
WordPart extraPart = extraPair.Play(cell, letter);
if (extraPart != null && !graph.IsValid(extraPart.Word))
{
continue;
}
var played = new LetterPlay(cell, letter);
var pending = new List <char>(rack.Letters);
pending.Remove(letter);
bool valid = mainPart.Word.Length == 1 || graph.IsValid(mainPart.Word);
var path = GetPath(mainPart, extraPart, played, pending.ToConstant());
if (valid && !validMap.ContainsKey(mainPart))
{
validMap.Add(mainPart, path);
}
var min = new Dictionary <Direction, HashSet <int> >();
min.Add(Direction.Down, new HashSet <int>());
min.Add(Direction.Right, new HashSet <int>());
var max = new Dictionary <Direction, HashSet <int> >();
max.Add(Direction.Down, new HashSet <int>());
max.Add(Direction.Right, new HashSet <int>());
GetNewPaths(graph, board, path, path, done, validMap, true, min, max);
}
}
}
valids = new ConstantList <PlayPath>(validMap.Values.ToList());
}
public Choices(WordGraph graph, Board board, PlayPath path, Fix fix, Cell cell)
{
this.fix = fix;
this.cell = cell;
Direction direction = path.Main.Direction;
var otherDirection = direction == Direction.Down ? Direction.Right : Direction.Down;
var playable = new PlayableLetters(path.Pending);
WordPart before = fix == Fix.Suffix ? path.Main : null;
WordPart after = fix == Fix.Prefix ? path.Main : null;
main = GetBeforeAfter(board, cell, direction, graph, playable, before, after);
extra = GetBeforeAfter(board, cell, otherDirection, graph, playable);
letters = playable.Choices.ToConstant();
}
private static WordPartPair GetBeforeAfter(Board board, Cell cell, Direction direction, WordGraph graph, PlayableLetters choices, WordPart before = null, WordPart after = null)
{
before = before ?? board.GetBeforePart(cell, direction);
after = after ?? board.GetAfterPart(cell, direction);
if (before != null && graph.Contains(before.Word))
{
choices.IntersectWith(graph.GetLetters(before.Word, Fix.Suffix));
}
if (after != null && graph.Contains(after.Word))
{
choices.IntersectWith(graph.GetLetters(after.Word, Fix.Prefix));
}
return(new WordPartPair(before, after));
}
