import java.awt.*;
import java.awt.event.*;
import java.applet.Applet;

public class liikuv3 extends Applet implements ActionListener{
	int player=1;
	TextField tf1=new TextField();
	public liikuv3(){
		add(tf1);
		tf1.addActionListener(this);
	}
	public void paint(Graphics g){
			g.drawLine(0,420,800,420);
			g.fillOval(10,380,40,40);
			g.fillOval(750,380,40,40);
	}
	public void actionPerformed(ActionEvent syndmus){
			Graphics g=getGraphics();
			double a=Double.parseDouble(tf1.getText());
			double t;
			final int v0=20; //m/s
			final int keskx=400;
			final int kesky=300;
			final int r=10;
			int x;
			int y=1;
			for(t=0;kesky-y<400;t=t+0.2){
				x=(int)(Math.cos(a*Math.PI/180)*v0*t);
				y=(int)((Math.sin(a*Math.PI/180)*v0*t)-(0.98*t*t)/2);
				g.setColor(Color.black);
				g.drawOval(keskx+x,kesky-y,2*r,2*r);
				try{Thread.sleep(15);}catch(Exception e){}
				if(kesky-y<400){
					g.setColor(Color.white);
					g.drawOval(keskx+x,kesky-y,2*r,2*r);
				}else{
					System.out.println(x);
					if(player>0){
						if(x>(770-400-30) && x<770-400+30){
							g.setColor(Color.red);
							g.fillOval(750,380,40,40);
							g.setColor(Color.black);
						}
						player=player*-1;
					}else{
						if(x>-430 && x<-370){
							g.setColor(Color.red);
							g.fillOval(10,380,40,40);
							g.setColor(Color.black);
						}
						player=player*-1;
					}
					}
				}
	}
	public static void main(String[] arg){
		Frame f=new Frame();
		f.add(new liikuv3());
		f.setSize(800,600);
		f.setVisible(true);
		f.addWindowListener(new Raamikuular());
	}
}