import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;
import java.io.*;
public class Kann extends Applet implements ActionListener{
Button nupp=new Button(" Tulista ");
TextField tf1= new TextField();
int x[]={200,250,255,200};
int y[]={160,100,105,180};
int n=4;
double nu=30;
double tuul=0;
public Kann(){
add(nupp);
add(tf1);
nupp.addActionListener(this); }

public void actionPerformed(ActionEvent e){
Graphics g=getGraphics();
g.drawOval(70,110,60,60);
g.fillOval(70,110,60,60);
g.setColor(Color.white);
g.drawOval(80,120,40,40);
g.fillOval(80,120,40,40);
g.setColor(Color.black);
g.drawRect(100,100,100,100);
g.fillRect(100,100,100,100);
g.drawPolygon(x,y,n);
g.fillPolygon(x,y,n);
      tuul=Double.parseDouble(tf1.getText());
      double nurk=Math.toRadians(nu);
     int vasakult=253;
     int ylalt=103;
     double x=0, y=0;
     double vgy=0;
     final double G=-9.8;
     double sammuaeg=0.1;
     double viskeKiirus=50;
     double viskeSammX=Math.cos(nurk)*viskeKiirus*sammuaeg;
     double viskeSammY=Math.sin(nurk)*viskeKiirus*sammuaeg;

     while(ylalt-(int)y<=200){
       double uvgy=vgy+G*sammuaeg;
       double vahemaay=(vgy+uvgy)/2*sammuaeg;
       y=y+vahemaay+viskeSammY;
       x=x+viskeSammX-tuul/5;
       vgy=uvgy;
       g.setColor(Color.blue);
       g.drawOval(vasakult+(int)x, ylalt-(int)y, 10, 10);
       g.fillOval(vasakult+(int)x, ylalt-(int)y, 10, 10);
       try{Thread.sleep((int)(sammuaeg*1000));}catch(Exception ex){}
       g.setColor(getBackground());
       g.drawOval(vasakult+(int)x, ylalt-(int)y, 10, 10);
       g.fillOval(vasakult+(int)x, ylalt-(int)y, 10, 10);
}
}

public static void main(String argumendid[]){
Frame f=new Frame("Piisk");
f.add(new Kann());
f.setSize(500, 500);
f.setVisible(true);
f.addWindowListener(new WindowAdapter(){
    public void windowClosing(WindowEvent e){
        System.exit(0);
        }
    });
}
}