California State University San Bernardino
Department of Computer Science and Engineering
Presentation

Date March 14, 2008

Time 11:30-12

Place JBH 359

Title A Distributed Object Framework for Networked Virtual Environments

Presenter Yong Hee You


Abstract

In this talk, I will present a framework that can be used for implementing
multiplayer games and other network applications with virtual environments.
The framework defines the communication protocol between client and server,
and provides an object-oriented mechanism for implementers to add new 
functionality. In this framework, the server is the authority on the state
of the virtual world. The server sends commands to the client to construct
that part of the world in which the user's avatar is located. Objects 
comprising the world are created, modified and destroyed using a simple 
distributed object management mechanism.  The framework was simplified by 
having all object management messages created by the server.  The framework
utilizes the command pattern to execute remote functions similar to what is
used in Java RMI. In this presentation, the usage of this programming 
pattern in designing the network protocol and the actual design of the 
network protocol will be explained in detail.