Book Image

Learning C# by Developing Games with Unity 2020 - Fifth Edition

By : Harrison Ferrone
Book Image

Learning C# by Developing Games with Unity 2020 - Fifth Edition

By: Harrison Ferrone

Overview of this book

Over the years, the Learning C# by Developing Games with Unity series has established itself as a popular choice for getting up to speed with C#, a powerful and versatile programming language that can be applied in a wide array of application areas. This book presents a clear path for learning C# programming from the ground up without complex jargon or unclear programming logic, all while building a simple game with Unity. This fifth edition has been updated to introduce modern C# features with the latest version of the Unity game engine, and a new chapter has been added on intermediate collection types. Starting with the basics of software programming and the C# language, you’ll learn the core concepts of programming in C#, including variables, classes, and object-oriented programming. Once you’ve got to grips with C# programming, you’ll enter the world of Unity game development and discover how you can create C# scripts for simple game mechanics. Throughout the book, you’ll gain hands-on experience with programming best practices to help you take your Unity and C# skills to the next level. By the end of this book, you’ll be able to leverage the C# language to build your own real-world Unity game development projects.
Table of Contents (16 chapters)

Using constructors

Class constructors are special methods that fire automatically when a class instance is created, which is similar to how the Start method runs in LearningCurve. Constructors build the class according to its blueprint:

  • If a constructor is not specified, C# generates a default one. The default constructor sets any variables to their default type values—numeric values are set to zero, Booleans to false, and reference types (classes) to null.
  • Custom constructors can be defined with parameters, just like any other method, and are used to set class variable values at initialization.
  • A class can have multiple constructors.

Constructors are written like regular methods but with a few differences; for instance, they need to be public, have no return type, and the method name is always the class name. As an example, let's add a basic constructor with no parameters to the Character class and set the name field to something other than null.