private double FindDistance_quadratic(Vector2 point, int px, int py) { return point.DistanceToSquared(new Vector2(px + 0.5, py + 0.5)); }
private double FindDistance_cubic(Vector2 point, int px, int py) { return Math.Pow(point.DistanceToSquared(new Vector2(px + 0.5, py + 0.5)), 1.5); }