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 – A more complex Kismet sequence


The idea sounds simple in theory: the player walks over a trigger, and a weapon upgrade appears. In reality, we'll see that simple ideas can get complicated pretty quickly, even in Kismet:

  1. We should still have the editor open, if not, open it and open our AwesomeTestMap. Delete the Kismet from the last experiment by clicking on each action and event and hitting Delete on the keyboard.

  2. Delete all of the AwesomeWeaponUpgrade actors, we'll be placing them in the map through Kismet.

  3. The first thing we'll need is the trigger. Open up the Content Browser and select the Actor Classes tab. Make sure Show Categories is unchecked, and select Actor | Trigger (Not the subclasses, just Trigger). In the level, right-click somewhere near the start player and hit Add Trigger Here.

  4. The trigger we've added won't be visible in game by default, so let's fix that real quick. Double-click on the trigger to open its properties, and under Display, uncheck Hidden. Close...