We'll use a function we haven't used yet for this so we can keep it easily readable. In addition to
PostBeginPlay, allActorclasses have aPreBeginPlayevent that is called beforePostBeginPlayduring startup. We'll use this for our experiments.Local variables are declared like instance variables, except we use
localin the declaration line. Local variables can only be declared inside a function, and must be at the top of the function before any other lines of code. To see for ourselves, let's make aPreBeginPlayfunction in ourAwesomeGameclass:function PreBeginPlay() { super.PreBeginPlay(); local int i; i = 5; `log("This is i:" @ i); }If we try to compile this, we'll get a compiler error:
Error, 'Local' is not allowed here
Let's try rearranging the
PreBeginPlayfunction to move the variable declaration to the top:function PreBeginPlay() { local int i; super.PreBeginPlay(); i = 5; `log("This is i:" @ i); }It compiles...
Unreal Development Kit Game Programming with UnrealScript: Beginner's Guide
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Unreal Development Kit Game Programming with UnrealScript: Beginner's Guide
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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.
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Table of Contents (18 chapters)
Unreal Development Kit Game Programming with UnrealScript
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Free Chapter
Project Setup and Test Environments
Storing and Manipulating Data
Understanding the Class Tree
Making Custom Classes
Using Functions
Using States to Control Behavior
Working with Kismet
Creating Multiplayer Games
Debugging and Optimization
Odds and Ends
Pop Quiz Answers
Index
Customer Reviews