Book Image

Unreal Development Kit Game Programming with UnrealScript: Beginner's Guide

By : Rachel Cordone
Book Image

Unreal Development Kit Game Programming with UnrealScript: Beginner's Guide

By: Rachel Cordone

Overview of this book

Unreal Development Kit is the free edition of Unreal Engine—the largest game engine in existence with hundreds of shipped commercial titles. The Unreal Engine is a very powerful tool for game development but with something so complex it's hard to know where to start.This book will teach you how to use the UnrealScript language to create your own games with the Unreal Development Kit by using an example game that you can create and play for yourself. It breaks down the UnrealScript language into easy to follow chapters that will quickly bring you up to speed with UnrealScript game programming.Unreal Development Kit Game Programming with UnrealScript takes you through the UnrealScript language for the Unreal Development Kit. It starts by walking through a project setup and setting up programs to write and browse code. It then takes you through using variables, functions, and custom classes to alter the game's behavior and create our own functionality. The use and creation of Kismet is also covered. Later, using replication to create and test multiplayer games is discussed. The book closes with code optimization and error handling as well as a few of the less common but useful features of UnrealScript.
Table of Contents (18 chapters)
Unreal Development Kit Game Programming with UnrealScript
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Time for action – Using a server function


With the Use functionality we already have a function we can test this with, so let's try it out. Since exec functions aren't called on Pawn classes, we'll need to use AwesomePlayerController.

  1. Open AwesomePlayerController in ConTEXT.

  2. First let's write the Use function:

    exec function Use()
    {
        `log("I have been used!");
    }
  3. Compile the code, and then run the server and the client.

  4. Press the Use key (default: E). We should see the log show up on the client:

    [0011.44] ScriptLog: I have been used!
  5. Close the client and the server.

  6. Now that we can see the Use function is only called on the client, let's send a function call to the server. Let's change our Use function a bit:

    exec function Use()
    {
        `log("I have been used!");
        CallTheServer();
    }
  7. Now let's write our server function:

    reliable server function CallTheServer()
    {
        `log("Reliable server function called!");
    }
  8. Compile the code and run the server and the client.

  9. Press the Use key and we should see the...