import java.applet.Applet;
import java.awt.*;
public class Kolmnurgad extends Applet{
  public void paint(Graphics g){
    Dimension suurus=getSize();
    double x1=10, y1=suurus.height-10,
           x2=suurus.width-10, y2=suurus.height-10,
           x3=suurus.width/2, y3=10;
    double ax1, ay1, ax2, ay2, ax3, ay3;
    int kordustearv=20;
    double nihe=0.1, jaak=1-nihe; //osa külje pikkusest
    for(int i=0; i<kordustearv; i++){
      g.drawLine((int)x1, (int)y1, (int)x2, (int)y2);
      g.drawLine((int)x2, (int)y2, (int)x3, (int)y3);
      g.drawLine((int)x3, (int)y3, (int)x1, (int)y1);

      try{Thread.sleep(100);}catch(Exception e){} //viivitus

      ax1=x1*jaak+x2*nihe;
      ay1=y1*jaak+y2*nihe;
      ax2=x2*jaak+x3*nihe;
      ay2=y2*jaak+y3*nihe;
      ax3=x3*jaak+x1*nihe;
      ay3=y3*jaak+y1*nihe;

      x1=ax1; y1=ay1;
      x2=ax2; y2=ay2;
      x3=ax3; y3=ay3;
    }
  }
}