import java.awt.Graphics;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.ArrayList;
import javax.swing.JPanel;

public class Board extends JPanel implements Runnable, KeyListener {

	Balls balls = new Balls();
	private Boolean shoot = false;

	// ////////////////////////////////////////////////////CONSTRUCTOR
	public Board() {
		setFocusable(true);
		Thread t = new Thread(this);
		addKeyListener(this);
		t.start();
	}

	// ///////////////////////////////////////////////////PAINT
	public void paint(Graphics g) {
		super.paint(g);
		if (shoot) {
			balls.draw(g);
		}
	}

	// //////////////////////////////////////////////////KEY LSITENER
	public void keyPressed(KeyEvent e) {
		int key = e.getKeyCode();
		if (key == KeyEvent.VK_SPACE) {
			shoot = true;
		}
	}

	public void keyReleased(KeyEvent e) {}
	public void keyTyped(KeyEvent e) {}

	// ///////////////////////////////////////////////////UPDATER
	public void update() {

		if (shoot) {
			balls.move(this.getHeight(), this.getWidth());
		}
	}

	// //////////////////////////////////////////////////MAIN THREAD
	@Override
	public void run() {
		while (true) {
			update();
			repaint();
			try {
				Thread.sleep(17);
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}

		}
	}
}