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)

Basic syntax

Declaring a dictionary is almost the same as declaring a list, but with one added detail—both the key and the value type need to be specified inside the arrow symbols:

Dictionary<keyType, valueType> name = new Dictionary<keyType,
valueType>();

To initialize a dictionary with key-value pairs, do the following:

  • Use a pair of curly brackets at the end of the declaration.
  • Add each element within its pair of curly brackets, with the key and the value separated by a comma. 
  • Separate elements with a comma, except the last element where the comma is optional:
Dictionary<keyType, valueType> name = new Dictionary<keyType,
valueType>()
{
{key1, value1},
{key2, value2}
};

An important note to consider when picking key values is that each key must be unique, and they cannot be changed. If you need to update a key, change its value in the variable declaration or remove the entire key-value pair and add another in code. 

Just like with arrays...