private static void joinDigitsIntoNumbers(List <ColorPattern> patterns)
{
for (var i = 0; i < patterns.Count(); i++)
{
for (var j = 0; j < patterns.Count(); j++)
{
var p1 = patterns[i];
var p2 = patterns[j];
for (var pi = 0; pi < p1.Points.Count(); pi++)
{
for (var pj = 0; pj < p2.Points.Count(); pj++)
{
var pt1 = p1.Points[pi];
var pt2 = p2.Points[pj];
if (pt1.IsEmpty || pt2.IsEmpty)
{
continue;
}
if (i == j && pi == pj)
{
continue;
}
if (pt1.Y == pt2.Y && pt2.X > pt1.X && pt2.X - pt1.X - p1.Pattern.GetLength(1) <= 4 &&
p1.Value == "1")
{
var exPat = patterns.FirstOrDefault(p => p.Value == p1.Value + p2.Value);
if (exPat == null)
{
exPat = new ColorPattern
{
Value = p1.Value + p2.Value,
Pattern = new bool[p1.Pattern.GetLength(0), pt2.X + p2.Pattern.GetLength(1) - pt1.X]
};
patterns.Add(exPat);
}
exPat.Points.Add(pt1);
p1.Points[pi] = Point.Empty;
p2.Points[pj] = Point.Empty;
}
}
}
}
}
foreach (var pattern in patterns)
{
pattern.Points.RemoveAll(p => p.IsEmpty);
}
}
private static void addToPatterns(List <ColorPattern> patterns, List <Point> points)
{
var minX = int.MaxValue;
var maxX = int.MinValue;
var minY = int.MaxValue;
var maxY = int.MinValue;
foreach (var point in points)
{
if (minX > point.X)
{
minX = point.X;
}
if (maxX < point.X)
{
maxX = point.X;
}
if (minY > point.Y)
{
minY = point.Y;
}
if (maxY < point.Y)
{
maxY = point.Y;
}
}
var pattern = new bool[maxY - minY + 1, maxX - minX + 1];
foreach (var point in points)
{
pattern[point.Y - minY, point.X - minX] = true;
}
var existingPattern = patterns.FirstOrDefault(p => Util.PatternEquals(pattern, p.Pattern));
if (existingPattern == null)
{
existingPattern = new ColorPattern
{
Pattern = pattern
};
patterns.Add(existingPattern);
}
existingPattern.Points.Add(new Point(minX, minY));
}
