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 – Creating a toggleable flashlight


We'll be working in our AwesomePawn class for this, but first, let's set the mood.

  1. Open AwesomeTestMap in the editor.

  2. Select all of the lights, and in their properties set Light | Light Component | Brightness to 0.3.

  3. Rebuild the map by clicking on the Build All button in the top toolbar.

  4. Save the map and close the editor.

  5. Open AwesomePawn.uc in ConTEXT.

  6. We'll need a variable to store our light component, so let's add it:

    var SpotLightComponent Flashlight;
  7. Now let's add the Component to the default properties:

    Begin Object Class=SpotLightComponent Name=MyFlashlight
      bEnabled=true
      Radius=1024.000000
      Brightness=1.90000
    End Object
    Components.Add(MyFlashlight)
    Flashlight=MyFlashlight
  8. Compile the code and run the game. We have a flashlight!

  9. Now to toggle it. We can use an already existing function for this, Use(). It's in PlayerController, so we'll have to override it in our AwesomePlayerController class. If it's already there, then change it to the...