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 – Just five more minutes mom


Let's say instead of spawning enemies straight away when the game started, we wanted them to spawn after say, 10 seconds. That should give us enough time to start running.

  1. Let's create a new function in AwesomeEnemySpawner called TimedEnemySpawn . We'll create the timer here:

    function TimedEnemySpawn()
    {
        SetTimer(10, false, 'SpawnEnemy');
    }

    The parameters for the SetTimer function are pretty easy. The first one is the amount of time for the timer. The second is an optional bool that controls whether or not we want the timer to run in a loop, in this case it would run every 10 seconds if we set it to true. The third parameter is the name of the function we want the timer to call when the time runs out. In this case, it will call the function that actually spawns the enemy.

  2. With this new functionality, we're going to need to keep a closer eye on the enemies we're spawning. If the spawner has already spawned an enemy, we don't want it to spawn another...