/*
 * Created on Feb 13, 2005
 *
 */

import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JPanel;

/**
 * @author knorton
 */
public class ControlPanel extends JPanel implements ActionListener {
    
    JButton 		nsp = null;
    JButton 		tsp = null;
    JButton 		bsp = null;
    BallPanel	sim = null;
    
    public ControlPanel(BallPanel ballSim) {
        this.sim = ballSim;
        
        this.setPreferredSize(new Dimension(ballSim.getWidth(),50));
        this.setLayout(new BoxLayout(this,BoxLayout.X_AXIS));
        nsp = new JButton("No Spin");
        tsp = new JButton("Top Spin");
        bsp = new JButton("Back Spin");
        this.add(nsp);
        this.add(tsp);
        this.add(bsp);
        nsp.addActionListener(this);
        tsp.addActionListener(this);
        bsp.addActionListener(this);
    }
   
    public void actionPerformed(ActionEvent evt) {
        Object s = evt.getSource();
        sim.stop();
        sim.resetBall();
        Ball b = sim.getBall();
        
        if (s == nsp) {
            b.setAngularVelocity(0f);
            b.setVx(20f);
        }
        else if (s == tsp) {
            b.setAngularVelocity(1.2f);
            b.setVx(20f);
        }
        else if (s == bsp) {
            b.setAngularVelocity(-1.2f);
            b.setVx(20f);
        }
        
        sim.start();
    }
}