public class egg
        {
            System.Drawing.Graphics zona_des;
            int x0, y0, d;
            public void sterg(Color culoare_stergere, int pozx, int pozy, int diam)
            {
                zona_des.FillEllipse(new SolidBrush(culoare_stergere), x0 + 1, y0 + 1, d - 1, d - 1);
            }
            public void setc(Color culoare_egg, int np)
            {
                double alfa_g, alfa_r;
                int[,] puncte_c;
                puncte_c = new int[np + 1, 2];
                int x, y, xc, yc, i, j;
                xc = x0 + d / 2;
                yc = y0 + d / 2;

                zona_des.DrawEllipse(new Pen(culoare_egg), x0, y0, d, d);
                i = 0;
                for (alfa_g = 0; alfa_g < 360; alfa_g += 360 / np)
                {
                    alfa_r = 2 * System.Math.PI * alfa_g / 360;// unghiul in radiani
                    x = System.Convert.ToInt16(xc + d / 2 * System.Math.Cos(alfa_r));
                    y = System.Convert.ToInt16(yc - d / 2 * System.Math.Sin(alfa_r));
                    puncte_c[i, 0] = x;
                    puncte_c[i, 1] = y;
                    i++;
                }
                for (j = 0; j < np; j++)
                {
                    for (i = 0; i < np; i++)
                    {
                        zona_des.DrawLine(new Pen(culoare_egg), puncte_c[j, 0], puncte_c[j, 1], puncte_c[i, 0], puncte_c[i, 1]);
                    }
                }
            }
            public egg(System.Drawing.Graphics desen, int pozx, int pozy, int diam)
            {
                zona_des = desen;
                x0 = pozx;
                y0 = pozy;
                d = diam;
            }
        }