// The copyright of this program is reserved by “N”L.
/* 
Turtle Graphics / 
*/ 

/* <applet code="Ex061015e.class" width=400 height=400> </applet> */

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;

public class Ex061015e extends JApplet implements ActionListener{
	double th=60.0;
	double Leng;
	int order;
	dTurtle t;
	boolean flag=false;
	JComboBox cb2;
	String cbl2[]={"n=1","n=2","n=3","n=4","n=5","n=6","n=7"};	
	public void init(){
		Container cp = getContentPane();
		JPanel pl = new JPanel();
    pl.setLayout(null);
		pl.setBackground(Color.black);
    cb2 = new JComboBox(cbl2);
    cb2.setBounds(0,0,60,20);
    cb2.setSelectedIndex(0);
    cb2.addActionListener(this);
		pl.add(cb2);
		t = new dTurtle(250,300);
		t.setColor(Color.green);
		cp.add(pl);
	}
	
	public void actionPerformed(ActionEvent event){
		order = cb2.getSelectedIndex()+1;
		Leng=100.0;
		t.setPos(250.0,280.0);
		t.setAng(0.0);
		flag=true;
		repaint();
	}
	
	public void paint(Graphics g){
		super.paint(g);
		if(flag==true)
			Rec(order,Leng,g);
	}
	
	public void Rec(int order,double length,Graphics g){
		if(order>0){
			for(int i=0;i<6;i++){
				t.turn(th);
				Rec(order-1,length/2.0,g);
				t.move(length,g);
			}
		}else
			return;	
	}		
}