package KOL;

import java.awt.Color;
import java.awt.Graphics;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.swing.JApplet;

/**
 *
 * @author Le MOI
 */
public class Kol3 extends JApplet implements Runnable{

    int x=0;
    int y=0;
    boolean goRight = true;
    boolean goLeft = false;
    boolean goBottom = false;
    boolean goTop = false;

    public void init(){
        Thread t=new Thread(this);
        t.start();
        setSize(300, 200);
    }

    public void paint(Graphics g){
        super.paint(g);

        //while(x<getWidth()-20){
            pravoagolnik(g, x, y);
            //zmija(g,x,0);
        //}

    }

    public void pravoagolnik(Graphics g,int x,int y){
        g.setColor(Color.BLUE);
        g.fillRect(x, y,20, 20);
        g.setColor(Color.BLACK);
        g.drawRect(x, y,20, 20);
    }

    public void zmija(Graphics g,int xx,int yy){
        xx=0;
        for(int i=xx;i<100;i+=20){
            pravoagolnik(g, i, yy);
        }
    }

    @Override
    public void run() {
        while(true){

        	if(goRight){
        		if(x+25 > 300){
        			goRight = false;
        			goBottom = true;
        		}else
        			x+=5;
        	}
        	if(goBottom){
        		if(y+25 > 200){
        			goBottom = false;
        			goLeft = true;
        		}
        		else
        			y+=5;
        	}
        	if(goLeft){
        		if(x<0){
        			x=0;
        			goLeft = false;
        			goTop = true;
        		}
        		else
        			x-=5;
        	}
        	if(goTop){
        		if(y<0){
        			y=0;
        			goTop = false;
        			goRight = true;
        		}
        		else
        			y-=5;
        	}
            repaint();
            try {
                Thread.sleep(50);
            } catch (InterruptedException ex) {
 //               Logger.getLogger(Kol2.class.getName()).log(Level.SEVERE, null, ex);
            }
        }
    }
}