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

You're reading from   Unreal Development Kit Game Programming with UnrealScript: Beginner's Guide Create games beyond your imagination with the Unreal Development Kit

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Product type Paperback
Published in Dec 2011
Publisher Packt
ISBN-13 9781849691925
Length 466 pages
Edition 1st Edition
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Author (1):
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Rachel Cordone Rachel Cordone
Author Profile Icon Rachel Cordone
Rachel Cordone
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Table of Contents (18) Chapters Close

Unreal Development Kit Game Programming with UnrealScript
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. Project Setup and Test Environments FREE CHAPTER 2. Storing and Manipulating Data 3. Understanding the Class Tree 4. Making Custom Classes 5. Using Functions 6. Using States to Control Behavior 7. Working with Kismet 8. Creating Multiplayer Games 9. Debugging and Optimization 10. Odds and Ends Pop Quiz Answers Index

Time for action – All classes are created equally


What does this mean for us in practical terms? Let's take a look at our friend AwesomeActor to see if he can help demonstrate.

  1. Write the following code in our AwesomeActor class:

    class AwesomeActor extends Actor
        placeable;
    
    var() int MyInt;
    
    function PostBeginPlay()
    {
        `log(self @ MyInt);
    }
    
    defaultproperties
    {
        MyInt=4
    
        Begin Object Class=SpriteComponent Name=Sprite
            Sprite=Texture2D'EditorResources.S_NavP'
            HiddenGame=True
        End Object
        Components.Add(Sprite)
    }

    We'll use an editable MyInt variable to see class behavior.

  2. Compile the class and open up the editor. Next to our existing AwesomeActor, place another one.

  3. Save the map and run it from the editor, then close out the game and editor.

  4. Now let's take a look at our Launch2.log file:

    [0010.61] ScriptLog: AwesomeActor_0 4
    [0010.61] ScriptLog: AwesomeActor_1 4

    We can see that class instances are created with the class name and then a number added to the end. Remembering...

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