Book Image

Lua Quick Start Guide

By : Gabor Szauer
4 (1)
Book Image

Lua Quick Start Guide

4 (1)
By: Gabor Szauer

Overview of this book

Lua is a small, powerful and extendable scripting/programming language that can be used for learning to program, and writing games and applications, or as an embedded scripting language. There are many popular commercial projects that allow you to modify or extend them through Lua scripting, and this book will get you ready for that. This book is the easiest way to learn Lua. It introduces you to the basics of Lua and helps you to understand the problems it solves. You will work with the basic language features, the libraries Lua provides, and powerful topics such as object-oriented programming. Every aspect of programming in Lua, variables, data types, functions, tables, arrays and objects, is covered in sufficient detail for you to get started. You will also find out about Lua's module system and how to interface with the operating system. After reading this book, you will be ready to use Lua as a programming language to write code that can interface with the operating system, automate tasks, make playable games, and much more. This book is a solid starting point for those who want to learn Lua in order to move onto other technologies such as Love2D or Roblox. A quick start guide is a focused, shorter title that provides a faster paced introduction to a technology. It is designed for people who don't need all the details at this point in their learning curve. This presentation has been streamlined to concentrate on the things you really need to know.
Table of Contents (10 chapters)

Creating and loading modules

Modules allow Lua code to be split across multiple files. The codebase of any non-trivial application is going to get large, and having modules allows the code to be organized and keeps it maintainable. When doing OOP, each class can be its own module. Keeping every class in its own file will keep your projects easy to navigate and maintain.

Lua has several ways of creating and loading modules. Only one method is discussed here. Read more about how modules work at http://lua-users.org/wiki/ModulesTutorial

Creating a module

A module is just a normal Lua table; a module file is a Lua file which returns a table. For us, this means returning an anonymous table. We are going to create a new file, character...