import java.awt.Graphics;


@SuppressWarnings("serial")
public class Anim6 extends AnimationPanel
{
    private static final float SPEED1=80, SPEED2=40;
    private static final int SIZE=50;

    private double x,y;
    private int smer1=1;

    @Override
    protected boolean step(double elapsedTime)
    {
        x+=elapsedTime*SPEED1*smer1;
        y+=elapsedTime*SPEED2*smer1;

        if(x<=0){
            x=0;
            smer1*=-1;
        }else if(x>=getWidth()-SIZE){
            x=getWidth()-SIZE;
            smer1*=-1;

        }
        if(y<=0){
            y=0;
            smer1*=-1;
        }
        else if(y>=getHeight()-SIZE){
            y=getHeight()-SIZE;
            smer1*=-1;
        }
        return true;
    }
    @Override
    protected void draw(Graphics g) {
        g.drawOval((int)x, (int)y, SIZE, SIZE);

    }


    public static void main(String[] args)
    {
        new Anim6().run(400, 200, "Zad 1", true);
    }


}