private void MarkAsVisited(Pixel pixel)
{
int index = pixel.Index;
int row = index / _pixelWidth;
int col = index % _pixelWidth;
if (_isVisited[row] == null)
_isVisited[row] = new bool[_pixelWidth];
_isVisited[row][col] = true;
}
public void Process(byte[] pixelsData)
{
var queue = new Queue<Pixel>();
var firstPixel = new Pixel(pixelsData, 0, _pixelWidth, _pixelHeight);
queue.Enqueue(firstPixel);
MarkAsVisited(firstPixel);
while (queue.Count > 0)
{
Pixel pixel = queue.Dequeue();
pixel.ChangeColor(150);
Pixel[] adjacents = pixel.GetAdjacents();
foreach (Pixel adj in adjacents)
{
if (adj.IsWhite && !IsVisited(adj))
{
MarkAsVisited(adj);
queue.Enqueue(adj);
}
}
}
}
private void AddPixel(int index, List<Pixel> adjacents)
{
var pixel = new Pixel(_pixels, index, _pixelsWidth, _pixelsHeight);
adjacents.Add(pixel);
}
private bool IsVisited(Pixel pixel) => IsVisited(pixel.Row, pixel.Col);