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 – Breaking the class itself


Another common mistake is a class name mismatch. Let's take a look.

  1. At the top of our class, let's change the class declaration:

    class Borked extends Actor
        placeable;
  2. Now try to compile the code. We'll get this in the log:

    [0004.13] Log: R:\UDK\UDK-AwesomeGame\Binaries\..\Development\Src\BrokenGame\Classes\BrokenActor.uc : Error, Script vs. class name mismatch (BrokenActor/Borked)

What just happened?

The names of the classes in each file must match the file name. In our case, since the file is called BrokenActor.uc , the class must be declared as BrokenActor. Let's change it back:

class BrokenActor extends Actor
    placeable;

It's a minor error, but you may encounter it from time to time. It's easy to forget to rename a class if you've copied it from another of your projects, for example.

Another common error that breaks the class file itself is saving the text file in the wrong format. If you ever encounter an error such as this:

[0004.03] Log: R...