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Unity 4.x Game Development by Example: Beginner's Guide

Unity 4.x Game Development by Example: Beginner's Guide

By : Ryan Henson Creighton
4 (20)
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Unity 4.x Game Development by Example: Beginner's Guide

Unity 4.x Game Development by Example: Beginner's Guide

4 (20)
By: Ryan Henson Creighton

Overview of this book

Unity is one of the biggest game engines in the world, providing the user with a range of important tools that they need to bring their ideas into reality. Beginner game developers are optimistic, passionate, and ambitious, but that ambition can be dangerous! Too often, budding indie developers and hobbyists bite off more than they can chew. Games like Angry Birds, Cut the Rope, and Fruit Ninja are fun, simple games that have delighted players and delivered big profits to their creators. This is the perfect climate for new game developers to succeed by creating simple games with Unity, starting today. This book teaches you the ins and outs of the unique Unity game engine interface. Clear and concise code examples written in both Unity Javascript and C# take you through the step-by-step process of building five small, functional games. With this understanding you can start making your own mark on the game industry! With absolutely no programming or game development experience, you will learn how to build five simple games in Unity by following step-by-step instructions, peppered with amusing analogies and anecdotes from an experienced indie developer. Following a primer on simplifying your game ideas to that single “something” that keeps players coming back for more, dive into the Unity game engine by creating a simple bat-and-ball game. From there, you'll build a complete memory game using only the Unity GUI system. After building a 2.5D mouse avoider game, you'll learn how to re-skin the project to completely change the game's theme. Incorporating everything you've learned, you'll return to complete the bat-and-ball game by adding scoring, replay flow, sound effects, and animations. Finally, in the new bonus chapter, you'll program some simple AI (Artificial Intelligence) for a tic tac toe game. "Unity 4.x Game Development by Example" is a fun and light-hearted exploration of one of the most powerful game engines on the market today. Find out what all the fuss is about by getting up to speed using this book!
Table of Contents (22 chapters)
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Unity 4.x Game Development by Example Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Time for action – create a button UI control


We're going to add a button to the title screen through code, using Unity's built-in OnGUI function:

  1. Double-click on the TitleGUI script, or switch over to the script editor if it's already open.

  2. We won't need the Update function any longer. Instead, we'll be using the built-in OnGUI function. Change the word Update to OnGUI:

    var customSkin:GUISkin;
    function OnGUI() {
    }
  3. Add a chunk of code that creates a button inside the OnGUI function:

    var customSkin:GUISkin;
    function OnGUI() {
      if(GUI.Button(Rect(0,0,100,50),"Play Game"))
      {
        print("You clicked me!");
      }
    }
  4. Save the script and press the Unity Play button to test your game.

A button labeled Play Game appears at the top-left of the screen. When you click on it, the message You clicked me! appears in the status bar at the bottom of the Unity interface. It will also appear in the Console window if you have it open.

Great! With a very tiny bit of code, we have a working, labeled button up on the screen...

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