public State TryAdd(HashSet<Int32> positions)
{
var found = States.FirstOrDefault(st =>
st.Values.Intersect(positions).Count() == st.Values.Union(positions).Count());
if (found == null)
{
found = new State(this) { Values = positions };
found.CurPositions = new List<RegExpTreeItem>();
found.Values.ToList().ForEach(v => found.CurPositions.Add(AllPositions[v]));
if (States.Count == 0) First = found;
States.Add(found);
}
return found;
}
public State MoveForward(State state, Char c)
{
if (!state.Moves.ContainsKey(c)) return null;
return state.Moves[c];
}
void Restart()
{
state = new Logic.State();
updator.Start(state);
}