public void CalculateCorners()
{
topleftpixel = corners.First(p => p.GetX() < centerx && p.GetY() < centery);
toprightpixel = corners.First(p => p.GetX() >= centerx && p.GetY() < centery);
bottomleftpixel = corners.First(p => p.GetX() < centerx && p.GetY() >= centery);
bottomrightpixel = corners.First(p => p.GetX() >= centerx && p.GetY() >= centery);
}
public Shape(List<Pixel> pixels, Pixel[] corners)
{
this.pixels = pixels;
this.corners = corners;
centerx = corners.Sum(p => p.GetX()) / corners.Length;
centery = corners.Sum(p => p.GetY()) / corners.Length;
topleftpixel = corners[0];
toprightpixel = corners[1];
bottomrightpixel = corners[2];
bottomleftpixel = corners[3];
}