/// <summary>
/// Compute and set the new <see cref="WordEntry.Origin"/> of the <see cref="Candidate"/> entry, so this entry intersects in the common letter
/// </summary>
/// <exception cref="InvalidOperationException">If both entries do not intersect or do not have common letters</exception>
public WordEntry RepositionEntry()
{
if (!Intersects)
{
throw new InvalidOperationException("Can't reposition an entry that do not intersects with others");
}
if (!GetCommonLetters())
{
Logger.LogWarning($"Words {Existing} and {Candidate} intersect but don't have common letters");
return(null);
}
bool reposition = false;
WordEntry repositionedWord = null;
if (Overlaps)
{
Logger.LogInformation($"Words {Existing} and {Candidate} overlap {Count} common letters");
Point target = Existing.Coordinate(ExistingRange.Init);
int increment = Candidate.Direction.IsReverse() ? 1 : 0;
Point delta = target.Delta(Candidate.Coordinate(CandidateRange.Init + increment));
repositionedWord = Candidate.Translate(delta);
bool insideBoundaries = CheckBoundaries(repositionedWord.Origin);
reposition = insideBoundaries && !IntersectsWithOthers(repositionedWord, Soup.UsedWords.Values);
}
else
{
int i = 0;
bool insideBoundaries = false;
Logger.LogInformation($"Candidate intersects at ({this[0]}) with ({Existing})");
do
{
Point target = Existing.Coordinate(CommonLetters[i].ExistingPos);
Point delta = target.Delta(Candidate.Coordinate(CommonLetters[i].CandidatePos));
repositionedWord = Candidate.Translate(delta);
Logger.LogDebug($"Try to reposition to: {repositionedWord}");
insideBoundaries = CheckBoundaries(repositionedWord.Origin);
i++;
} while (!insideBoundaries && i < CommonLetters.Count);
reposition = insideBoundaries && !IntersectsWithOthers(repositionedWord, Soup.UsedWords.Values);
}
if (reposition)
{
Logger.LogWarning($"Candidate repositioned: {repositionedWord}");
return(repositionedWord);
}
return(null);
}
/// <summary>
/// Returns a list of coordinates where both entries intersects
/// </summary>
/// <returns></returns>
public IEnumerable <Point> GetIntersection()
{
Clear();
CommonLetters.Clear();
ExistingRange = new Range();
CandidateRange = new Range();
for (int i = 0; i < Existing.Name.Length; i++)
{
for (int j = 0; j < Candidate.Name.Length; j++)
{
if (Existing.Coordinate(i) == Candidate.Coordinate(j))
{
Add(Existing.Coordinate(i));
Logger.LogTrace($" {Existing.Coordinate(i)}");
}
}
}
Logger.LogDebug($"Comparing ({Existing}) with candidate ({Candidate}): {Count} intersection(s) found");
return(this);
}