static public PuzzleArea Clone(PuzzleArea original)
{
PuzzleArea result = new PuzzleArea(original.Board);
foreach (Point pos in original.Positions)
{
result.AddPosition(pos);
}
return(result);
}
static public PuzzleArea Differenz(PuzzleArea areaA, PuzzleArea areaB)
{
PuzzleArea result = new PuzzleArea(areaA.Board);
PuzzleArea overlap = Overlap(areaA, areaB);
foreach (Point pos in areaA.Positions)
{
if (!areaB.Positions.Contains(pos))
{
result.AddPosition(pos);
}
}
PuzzleArea areaRightB = new PuzzleArea(areaB.Board);
foreach (Point pos in areaB.Positions)
{
if (!areaA.Positions.Contains(pos))
{
areaRightB.AddPosition(pos);
}
}
if (result.Positions.Count == 0)
{
return(null);
}
result.MinFilled = Math.Max(result.Positions.Count, areaA.MinFilled - overlap.MaxFilled - areaRightB.MinFilled);
result.MaxFilled = Math.Min(result.Positions.Count, areaA.MaxFilled - overlap.MinFilled - areaRightB.MaxFilled);
result.MinEmpty = Math.Max(result.Positions.Count, areaA.MinEmpty - overlap.MaxEmpty - areaRightB.MinEmpty);
result.MaxEmpty = Math.Min(result.Positions.Count, areaA.MaxEmpty - overlap.MinEmpty - areaRightB.MaxEmpty);
result.RefreshDistincts();
foreach (Point pos in areaA.InvolvedNumberPositions)
{
if (!result.InvolvedNumberPositions.Contains(pos))
{
result.InvolvedNumberPositions.Add(pos);
}
}
foreach (Point pos in areaB.InvolvedNumberPositions)
{
if (!result.InvolvedNumberPositions.Contains(pos))
{
result.InvolvedNumberPositions.Add(pos);
}
}
return(result);
}
static public PuzzleArea Overlap(PuzzleArea areaA, PuzzleArea areaB)
{
PuzzleArea result = new PuzzleArea(areaA.Board);
PuzzleArea leftAreaA = new PuzzleArea(areaA.Board);
foreach (Point pos in areaA.Positions)
{
if (areaB.Positions.Contains(pos))
{
result.AddPosition(pos);
}
else
{
leftAreaA.AddPosition(pos);
}
}
if (result.Positions.Count == 0)
{
return(null);
}
result.MinFilled = Math.Max(0, areaA.MinFilled - leftAreaA.UndefinedCount - leftAreaA.FilledCount);
result.MaxFilled = Math.Min(areaA.MaxFilled, result.UndefinedCount + result.FilledCount);
result.MinEmpty = Math.Max(0, areaA.MinEmpty - leftAreaA.UndefinedCount - leftAreaA.EmptyCount);
result.MaxEmpty = Math.Min(areaA.MaxEmpty, result.UndefinedCount + result.EmptyCount);
result.RefreshDistincts();
foreach (Point pos in areaA.InvolvedNumberPositions)
{
if (!result.InvolvedNumberPositions.Contains(pos))
{
result.InvolvedNumberPositions.Add(pos);
}
}
foreach (Point pos in areaB.InvolvedNumberPositions)
{
if (!result.InvolvedNumberPositions.Contains(pos))
{
result.InvolvedNumberPositions.Add(pos);
}
}
return(result);
}