Some Feedback on my Multiplayer Pong Game please!

When I try it, it shows a small blank window, and nothing else happens.

This is a bug, that i am already aware of.

It helps to restart the launcher a few times or use a different JRE version

I have the same issue. I tried restarting it 20+ times and nothing. It would be best to get this bug resolved before asking people to test again. Also, could you attach a code sample?

Regards,

Stitchs.

Ok, thanks for the feedback

i am sorry for that, it worked most of the time for me...

Here is the Code for the launcher:


package jPong_multi;

import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.io.InputStream;
import javax.imageio.ImageIO;
import javax.swing.*;
/**
*
* @author Michael Langeder
*
*/
public class Launcher extends JFrame implements ActionListener{
/**
*
*/
private static final long serialVersionUID = 1L;
/**
* Launcher für JPong
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
new Launcher();
try {
//load Ball
String Pathl1 = "img/ball2.png";
InputStream streaml1 = JPong.class.getResourceAsStream(Pathl1);
JPong.img_ball = ImageIO.read(streaml1);
JPong.ballR=JPong.img_ball.getWidth();
//load Cursor1
String Pathl2 = "img/cursor.png";
InputStream streaml2 = JPong.class.getResourceAsStream(Pathl2);
JPong.img_cursor = ImageIO.read(streaml2);
//load Cursor2
String Pathl3 = "img/cursor2.png";
InputStream streaml3 = JPong.class.getResourceAsStream(Pathl3);
JPong.img_cursor2 = ImageIO.read(streaml3);
} catch (IOException e) {
System.out.println("At least 1 Picture could not be opened!");
JPong.run=false;
} catch (IllegalArgumentException e){
System.out.println("A Picture has not been loaded!");
JPong.run=false;
} catch (NullPointerException e){
System.out.println("Could not get size of ball!");
JPong.run=false;
}

}
public Launcher(){
//initialize window properties
this.setTitle("jPong Launcher");
this.setSize(200,150);
this.setVisible(true);

//create elements
JPanel launcherPanel = new JPanel();
JLabel launcherLabel = new JLabel();
JButton startButtonClient = new JButton("Connect to Host");
JButton startButtonServer = new JButton("Host Game");
final JTextField adressLine = new JTextField("Type Server IP");
adressLine.setPreferredSize(new Dimension(100,20));
//attach elements
launcherPanel.add(launcherLabel);
launcherPanel.add(adressLine);
launcherPanel.add(startButtonClient);
launcherPanel.add(startButtonServer);
this.add(launcherPanel);
/**
* Connect as Client
*/
startButtonClient.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
String adresse = adressLine.getText();
new JPong(adresse);
setVisible(false);
}
});
/**
* Connect as Client
*/
adressLine.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
String adresse = adressLine.getText();
new JPong(adresse);
setVisible(false);
}
});
/**
* start Server and connect as Client
*/
startButtonServer.addActionListener(new ActionListener(){
@Override
public void actionPerformed(ActionEvent e) {
new Server();
new JPong("localhost");
setVisible(false);
}
});

}
@Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub

}
}


I hope someone can tell me where the problem is

Thanks already!

I had the same issue as the other two in this thread. I resolved it by dragging the lower bottom right corner and expanding window size.

I started the game but I do not know how to play. I tried pressing a bunch of random buttons but nothing happens. I do see two paddles and a ball.

hurrah got it to work.
here are the instructions:
1. open two launcher, both using java -jar.
2. resize the little blank windows that comes up(thanks black_darkness)
3. on one launcher, click "host game"
4. on the other launcher, type in the ip adress of the server. (127.0.0.1 if both launchers are on the same computer)
5. click "connect to host"

controls:
w - move paddle up
s - move paddle down

feedback:
Nice game, although I think it wouldn't hurt if the ball was a little bit faster. Or make the speed adjustable.
It would also be good if you can fix the need to resize the launcher just to reveal the buttons.

I got a game up and running thanks to Ultramailman. How many more hours are you going to put into this? I think it will be fun if you make the ball increase in speed depending on the angle. ( I think that is how the original pong worked.) .

Thank you guys so much!

feedback:
Nice game, although I think it wouldn't hurt if the ball was a little bit faster. Or make the speed adjustable.
It would also be good if you can fix the need to resize the launcher just to reveal the buttons.

I just moved the "setSize();" after the swing stuff, its now working 100% for me.


launcherPanel.add(startButtonServer);
this.add(launcherPanel);
this.setSize(200,151);
/**
* Connect as Client


I think it will be fun if you make the ball increase in speed depending on the angle. ( I think that is how the original pong worked.

The speed is currently increasing on every contact with a paddle,
but i want to manipulate the direction of the ball depending on the position on the paddel where it collides.

How many more hours are you going to put into this?

I think i am going to put 20 hours or more into it, to make it a real nice game (better graphics, higher performance, better networking, and of course fixing every little bug)

To extend it, i am thinking of adding a list of recent servers for quick-connect, Bonus Items (in- or decrease paddle Size, gravitation,...)

I recommend making the paddle easier to see. It was kind of hard to see on my 1080p monitor.

I recommend making the paddle easier to see. It was kind of hard to see on my 1080p monitor.

I already replaced the line with a bar,
its in the new release with the bugfix.

I played the first version, I have not done any network programming myself. Is it normal for the host to be the mirror of the clients' screen (showing the opposite?).

Also, the paddles are hard to see, but it appears you have rectified this. I think my 2 biggest issues are:

• Not accounting for when a key is held down; i.e. the paddle only moves one unit on a key-press before having to be pressed again to move more.
  
• The ball going slightly off-screen before 'bouncing' back. This could be fixed with a simple intersection between screen dimensions and ball dimensions.
  
  
  Otherwise, good job on the networking, it's something I want to look into (eventually....)
  
  Regards,
  
  Stitchs.