Book Image

Learning C# by Developing Games with Unity 3D Beginner's Guide

By : Terry Norton
Book Image

Learning C# by Developing Games with Unity 3D Beginner's Guide

By: Terry Norton

Overview of this book

For the absolute beginner to any concept of programming, writing a script can appear to be an impossible hurdle to overcome. The truth is, there are only three simple concepts to understand: 1) having some type of information; 2) using the information; and 3) communicating the information. Each of these concepts is very simple and extremely important. These three concepts are combined to access the feature set provided by Unity. "Learning C# by Developing Games with Unity 3D Beginner's Guide" assumes that you know nothing about programming concepts. First you will learn the absolute basics of programming using everyday examples that you already know. As you progress through the book, you will find that C# is not a foreign language after all, because you already know the words. With a few keywords and using substitution, before you know it, you'll be thinking in code. The book starts by explaining in simple terms the three concepts you need for writing C# code and scripts: 1) variables to hold information; 2) methods (functions) to use the information; and 3) Dot Syntax to communicate the information where it's needed. The book builds on these concepts to open up the world of C# coding and Unity scripting. You will use this new power to access the features provided in Unity's Scripting Reference. The first half of this book is devoted to the code writing beginner. The concepts of variables, methods, Dot Syntax, and decision processing are fully explained. Since C# is an actual programming language, we take advantage of this to develop a State Machine to help control and organize each phase of a Unity project. Once the basic programming concepts are established and we have some State Machine organization, the features and power of Unity are accessed using the Scripting Reference. If you're looking to learn C# for Unity then this is the book that offers everything you need and more - so discover what C# offers today and see your work come to life as complete games!
Table of Contents (21 chapters)
Learning C# by Developing Games with Unity 3D Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Time for action – creating a script and a class


We are going to create the StateManager script and the BeginState class, then add some code so that we can instantiate BeginState to make an instance of BeginState. With the help of the next screenshot, perform the following steps:

  1. In the Unity Project window, create a C# Script in the Scripts folder.

  2. Name the script StateManager.

  3. Double-click on StateMana ger to open it in MonoDevelop.

  4. In the MonoDevelop Solution window, right-click on the Code folder and select Add | New Folder.

  5. Name the folder States.

  6. Right-click on the States folder and select Add | New File.

  7. In the New File window, select General | Empty Class.

  8. In the Name field at the bottom, enter BeginState.

  9. Click on the New button to create the class file.

The following screenshot is the Solution window of MonoDevelop:

With the BeginState class file open in MonoDevelop, make the changes as shown in the next screenshot:

  1. Change line 1 to using UnityEngine;.

  2. Change line 3 to namespace Assets.Code...