public static IEnumerable<KeyValuePair<Point, Color>> GetDistributionColor(this IEnumerable<KeyValuePair<Point, Color>> points, IPixelDrawable d, int width)
{
Dictionary<Point, Color> result = new Dictionary<Point, Color>();
foreach(var obj in points)
{
if(obj.Key.X >= 0 && obj.Key.X <= d.PixelSize.Width && obj.Key.Y >= 0 && obj.Key.Y <= d.PixelSize.Height)
{
int l = (int)Math.Ceiling((width - 1) / 2.0);
for(int i = obj.Key.X - l; i <= obj.Key.X + l; ++i)
{
for (int j = obj.Key.Y - l; j <= obj.Key.Y + l; ++j)
{
var p = new Point(i, j);
var old_c = d.ReadPixel(p);
if (result.ContainsKey(p))
{
old_c = result[p];
}
result[p] = CozyPixelHelper.Blend(obj.Value, old_c, CozyPixelHelper.LinearWeight(obj.Key.Length(p), width)); ;
}
}
}
}
return result;
}
public static void FakeDrawPixel(this IPixelDrawable target, IEnumerable <KeyValuePair <Point, Color> > points)
{
if (target != null && points != null && target.IsReady)
{
foreach (var obj in points)
{
target.FakeDrawPixel(obj.Key, obj.Value);
}
}
}
private static int SearchPointsWithColor(IPixelDrawable d, Point p, Color c, Dictionary<Point, Color> visited)
{
if (p.X < 0 || p.Y < 0 || p.X >= d.PixelSize.Width || p.Y >= d.PixelSize.Height || d.ReadPixel(p) != c)
{
return 0;
}
if (visited.ContainsKey(p))
{
return 0;
}
int count = 1;
visited[p] = c;
count += SearchPointsWithColor(d, new Point(p.X, p.Y + 1), c, visited);
count += SearchPointsWithColor(d, new Point(p.X, p.Y - 1), c, visited);
count += SearchPointsWithColor(d, new Point(p.X + 1, p.Y), c, visited);
count += SearchPointsWithColor(d, new Point(p.X - 1, p.Y), c, visited);
return count;
}
private static int SearchPointsWithColor(IPixelDrawable d, Point p, Color c, Dictionary <Point, Color> visited)
{
if (p.X < 0 || p.Y < 0 || p.X >= d.PixelSize.Width || p.Y >= d.PixelSize.Height || d.ReadPixel(p) != c)
{
return(0);
}
if (visited.ContainsKey(p))
{
return(0);
}
int count = 1;
visited[p] = c;
count += SearchPointsWithColor(d, new Point(p.X, p.Y + 1), c, visited);
count += SearchPointsWithColor(d, new Point(p.X, p.Y - 1), c, visited);
count += SearchPointsWithColor(d, new Point(p.X + 1, p.Y), c, visited);
count += SearchPointsWithColor(d, new Point(p.X - 1, p.Y), c, visited);
return(count);
}
public static IEnumerable<KeyValuePair<Point, Color>> GetPointsWithSameColor(IPixelDrawable d, Point begin, Color c)
{
Dictionary<Point, Color> visited = new Dictionary<Point, Color>();
SearchPointsWithColor(d, begin, c, visited);
return visited;
}
public static IEnumerable <KeyValuePair <Point, Color> > GetDistributionColor(this IEnumerable <KeyValuePair <Point, Color> > points, IPixelDrawable d, int width)
{
Dictionary <Point, Color> result = new Dictionary <Point, Color>();
foreach (var obj in points)
{
if (obj.Key.X >= 0 && obj.Key.X <= d.PixelSize.Width && obj.Key.Y >= 0 && obj.Key.Y <= d.PixelSize.Height)
{
int l = (int)Math.Ceiling((width - 1) / 2.0);
for (int i = obj.Key.X - l; i <= obj.Key.X + l; ++i)
{
for (int j = obj.Key.Y - l; j <= obj.Key.Y + l; ++j)
{
var p = new Point(i, j);
var old_c = d.ReadPixel(p);
if (result.ContainsKey(p))
{
old_c = result[p];
}
result[p] = CozyPixelHelper.Blend(obj.Value, old_c, CozyPixelHelper.LinearWeight(obj.Key.Length(p), width));;
}
}
}
}
return(result);
}
public static IEnumerable <KeyValuePair <Point, Color> > GetPointsWithSameColor(IPixelDrawable d, Point begin, Color c)
{
Dictionary <Point, Color> visited = new Dictionary <Point, Color>();
SearchPointsWithColor(d, begin, c, visited);
return(visited);
}
