/// <summary>
/// Fills result list with points belonging to the component
/// </summary>
private static void TraverseConnectedComponentDFS(List <Vector> result, Bitmap map, Bitmap visited, int x, int y, int threshold)
{
if (x < 0 || x >= map.Width || y < 0 || y >= map.Height || IsVisited(visited, x, y) || !BitmapUtils.IsBelowThreshold(map, x, y, threshold))
{
return;
}
result.Add(new Vector(x, y));
if (result.Count > 2000)
{
throw new MarkersNotFoundException("Couldn't traverse one of the markers: for some reason it is too large.");
}
visited.SetPixel(x, y, Color.Red);
TraverseConnectedComponentDFS(result, map, visited, x + 1, y, threshold);
TraverseConnectedComponentDFS(result, map, visited, x, y + 1, threshold);
TraverseConnectedComponentDFS(result, map, visited, x - 1, y, threshold);
TraverseConnectedComponentDFS(result, map, visited, x, y - 1, threshold);
}