Java-Gaming.org    
Featured games (79)
games approved by the League of Dukes
Games in Showcase (477)
Games in Android Showcase (107)
games submitted by our members
Games in WIP (534)
games currently in development
News: Read the Java Gaming Resources, or peek at the official Java tutorials
 
    Home     Help   Search   Login   Register   
Pages: [1]
  ignore  |  Print  
  1 vs 1 TCP/IP Game, how many ports needed?  (Read 1740 times)
0 Members and 1 Guest are viewing this topic.
Offline zappsweden

Junior Member




Java games rock!


« Posted 2006-06-27 17:12:41 »

I was doing well using one connection (one port) having a ClientServer.class i created for the purpose. I send strings between the client and server and game worked prefectly.

However, I recently discovered that when loading saves I must send objects and I started using ObjectOutputStream and ObjectInputStream for that sole reason. This only seemed to work one way!

Having
ObjectOutputStream
ObjectInputStream

on both client and server seemed to make that none of them could readObject from it. Basically, is the problem i use the same socket for sending and receiving?

Instead if I had OOS on the server side and OIS on client side it worked, not when I had OOS and OIS on both.

It worked well with DataOutputStream using the same socket for incoming and outgoing traffic. I need to create 2 connections? What am I doing wrong?
Offline zappsweden

Junior Member




Java games rock!


« Reply #1 - Posted 2006-06-27 20:22:40 »

Examining it further, things get abit clear but bizarre:

oiStream = new ObjectInputStream(new BufferedInputStream(serverSock.getInputStream()));
       
FAILS


ooStream = new ObjectOutputStream(new BufferedOutputStream(serverSock.getOutputStream()));

WORKS

How come the ObjectOutputStream works and not the ObjectInputStream?
Offline kevglass

JGO Kernel


Medals: 120
Projects: 23
Exp: 18 years


Coder, Trainee Pixel Artist, Game Reviewer


« Reply #2 - Posted 2006-06-27 20:34:15 »

Is this the odd thing that ObjectInputStream waits for some header information from the other end of the connection before returning?

Here are some details: http://forum.java.sun.com/thread.jspa?threadID=627211&tstart=30

Kev

Games published by our own members! Check 'em out!
Legends of Yore - The Casual Retro Roguelike
Offline Jeff

JGO Coder




Got any cats?


« Reply #3 - Posted 2006-06-29 00:09:27 »

Examining it further, things get abit clear but bizarre:

oiStream = new ObjectInputStream(new BufferedInputStream(serverSock.getInputStream()));
       
FAILS


How does it fail? Does it fail to compile?  Does it throw an exception? or are you just not getting what you expect?

If the latter, are you flushing the output stream before tryign to read it from the  inoput stream?

Got a question about Java and game programming?  Just new to the Java Game Development Community?  Try my FAQ.  Its likely you'll learn something!

http://wiki.java.net/bin/view/Games/JeffFAQ
Pages: [1]
  ignore  |  Print  
 
 
You cannot reply to this message, because it is very, very old.

 

Add your game by posting it in the WIP section,
or publish it in Showcase.

The first screenshot will be displayed as a thumbnail.

pw (35 views)
2014-07-24 01:59:36

Riven (33 views)
2014-07-23 21:16:32

Riven (21 views)
2014-07-23 21:07:15

Riven (24 views)
2014-07-23 20:56:16

ctomni231 (55 views)
2014-07-18 06:55:21

Zero Volt (47 views)
2014-07-17 23:47:54

danieldean (38 views)
2014-07-17 23:41:23

MustardPeter (43 views)
2014-07-16 23:30:00

Cero (59 views)
2014-07-16 00:42:17

Riven (56 views)
2014-07-14 18:02:53
HotSpot Options
by dleskov
2014-07-08 03:59:08

Java and Game Development Tutorials
by SwordsMiner
2014-06-14 00:58:24

Java and Game Development Tutorials
by SwordsMiner
2014-06-14 00:47:22

How do I start Java Game Development?
by ra4king
2014-05-17 11:13:37

HotSpot Options
by Roquen
2014-05-15 09:59:54

HotSpot Options
by Roquen
2014-05-06 15:03:10

Escape Analysis
by Roquen
2014-04-29 22:16:43

Experimental Toys
by Roquen
2014-04-28 13:24:22
java-gaming.org is not responsible for the content posted by its members, including references to external websites, and other references that may or may not have a relation with our primarily gaming and game production oriented community. inquiries and complaints can be sent via email to the info‑account of the company managing the website of java‑gaming.org
Powered by MySQL Powered by PHP Powered by SMF 1.1.18 | SMF © 2013, Simple Machines | Managed by Enhanced Four Valid XHTML 1.0! Valid CSS!