import javax.swing.*;
import java.awt.*;
import java.awt.event.*;

/**
 * Animation.java
 *
 * A class demonstrating Swing 2D graphics using a bouncing
 * ball. See Ball.java and AnimationPanel.java.
 */
public class Animation
{
    public static void main(String[] args)
    {
        int width = 600;
        int height = 600;
        Color backgroundColor = Color.gray;

        // Create a AnimationPanel and give it a Ball.
        AnimationPanel panel = new AnimationPanel();
        panel.setPreferredSize(new Dimension(width, height));
        panel.setBackground(backgroundColor);
        panel.setBall(new Ball(200, 100, 50, 10, 10, Color.red));

        // Create a JFrame and fill it with the AnimationPanel.
        JFrame worldFrame = new JFrame();
        worldFrame.setContentPane(panel);
        worldFrame.pack();
        worldFrame.setVisible(true);

        // Animate by alternately sleeping and stepping the AnimationPanel.
        while (true) {
            try {
                Thread.sleep(20);
            } catch (Exception e) {
            }

            panel.step();
        }
    }
}