import java.awt.Graphics;

public class c05_mrcm extends java.applet.Applet {
  static final int n = 4;
  static final int left = 30;
  static final int w = 300;
  static final int wl = w + left;

  /*double a[] = {0.5, 0.5, 0.5};
  double b[] = {0, 0, 0};
  double c[] = {0, 0, 0};
  double d[] = {0.5, 0.5, 0.5};
  double e[] = {0, 0.5*w, 0.25*w};
  double f[] = {0, 0, 0.5*w};*/

  double a[] = {0.387, 0.441, -0.468};
  double b[] = {0.430, -0.091, 0.020};
  double c[] = {0.430, -0.009, -0.113};
  double d[] = {-0.387, -0.322, 0.015};
  double e[] = {0.2560*w, 0.4219*w, 0.4000*w};
  double f[] = {0.5220*w, 0.5059*w, 0.4000*w};

  public void paint(Graphics g)
  {
    mrcm(g, 0, 0, 0, w, 0, 0.5*w, w);
  }

  private void mrcm(Graphics g, int level, double xleft, double yleft, double xright, double yright, double xtop, double ytop)
  {
    if (level < n) {
      for (int i = 0; i < 3; i++) {
        double xl = a[i]*xleft + b[i]*yleft + e[i];
        double yl = c[i]*xleft + d[i]*yleft + f[i];
        double xr = a[i]*xright + b[i]*yright + e[i];
        double yr = c[i]*xright + d[i]*yright + f[i];
        double xt = a[i]*xtop + b[i]*ytop + e[i];
        double yt = c[i]*xtop + d[i]*ytop + f[i];
        mrcm(g, level+1, xl, yl, xr, yr, xt, yt);
      }
    } else {
      LineTo lt = new LineTo(g);
      lt.drawLine(left+(int)xleft, wl-(int)yleft, left+(int)xright, wl-(int)yright);
      lt.lineTo(left+(int)xtop, wl-(int)ytop);
      lt.lineTo(left+(int)xleft, wl-(int)yleft);
    }
  }
}