private static Walker FindBorderNeighborInSquareAroundWalker(Bitmap image, Walker walker, Color borderColor)
{
var neighbor = walker.Copy();
for (var i = 0; i < 8; i++)
{
neighbor.MoveAhead();
if (image.GetColor(neighbor.Position) == borderColor)
{
return(neighbor);
}
neighbor.TurnLeft();
}
return(null);
}
