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BounceThread.java
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121 lines (98 loc) · 2.22 KB
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package multiBall;
import java.awt.BorderLayout;
import java.awt.Component;
import java.awt.Container;
import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import ball.Ball;
import ball.BallComponent;
public class BounceThread
{
public static void main(String[] args)
{
EventQueue.invokeLater(new Runnable()
{
public void run()
{
JFrame frame = new BounceFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setVisible(true);
}
});
}
}
class BallRunnable implements Runnable
{
private Ball ball;
private Component component;
public static final int STEPS = 100;
public static final int DELAY = 18;
public BallRunnable(Ball aBall, Component aComponent)
{
ball = aBall;
component = aComponent;
}
public void run()
{
try
{
for(int i = 1; i <= STEPS; i++)
{
ball.move(component.getBounds());
component.repaint();
Thread.sleep(DELAY);
}
}catch(InterruptedException e)
{
}
}
}
class BounceFrame extends JFrame
{
private BallComponent comp;
public static final int DEFAULT_WIDTH = 450;
public static final int DEFAULT_HEIGHT = 350;
public static final int STEPS = 1000;
public static final int DELAY = 3;
public BounceFrame()
{
setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
setTitle("BounceThread");
comp = new BallComponent();
add(comp, BorderLayout.CENTER);
JPanel buttonPanel = new JPanel();
addButton(buttonPanel, "start", new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
addBall();
}
});
addButton(buttonPanel, "Colse", new ActionListener()
{
public void actionPerformed(ActionEvent event)
{
System.exit(0);
}
});
add(buttonPanel, BorderLayout.SOUTH);
}
public void addButton(Container c, String title, ActionListener listener)
{
JButton button = new JButton(title);
c.add(button);
button.addActionListener(listener);
}
public void addBall()
{
Ball b = new Ball();
comp.add(b);
Runnable r = new BallRunnable(b, comp);
Thread t = new Thread(r);
t.start();
}
}