import java.awt.*;
import java.awt.event.*;
import java.awt.font.*;
import java.awt.geom.*;
import java.util.Random;

public class 	SimpleBallBouncer extends AnimationComponent
{

	private Ball 		ball;
  private double 	vx;
  private double  vy;

  public SimpleBallBouncer( Ball ball )
  {
		this.ball = ball;
		ball.x = 100;
		ball.y = 100;
    Random random = new Random();
    vx = random.nextFloat() / 10;
    vy = random.nextFloat() / 10;
	}


  public void timeStep()
  {

    if ( ball.x + vx < 0 )
    	vx = -vx;

    else
    if ( ball.x + ball.radius + vx >= getWidth() )
    	vx = -vx;


    if ( ball.y + vy < 0 )
    	vy = -vy;

    else
    if ( ball.y + ball.radius + vy >= getHeight() )
    	vy = -vy;

    ball.x += vx;
    ball.y += vy;

  }

  public void paint(Graphics g)
  {
		ball.paint(g);
  }

}