Lua Quick Start Guide电子书

Title Page

Copyright and Credits

Lua Quick Start Guide

Packt Upsell

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PacktPub.com

Contributors

About the author

About the reviewer

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Preface

Who this book is for

What this book covers

To get the most out of this book

Download the example code files

Download the color images

Code in Action

Conventions used

Get in touch

Reviews

Introduction to Lua

Technical requirements

What Lua is

Source code and binaries

Installing Lua on Windows 10

Installing Lua on macOS

Installing Lua on Linux

Tools for Lua

Installing VS Code on Windows 10

Installing VS Code on macOS

Installing VS Code on Linux

Exploring VS Code

Hello World!

Summary

Working with Lua

Technical requirements

Variables

Creating variables

Printing variables

Assigning variables

Comments

Basic types

nil

Boolean

number

Finding a type

String types

String literals

String length

Concatenate strings

String coercion

Escape characters

Console input

Scope

Scope access

Global scope

Shadowing

Functions

Defining a function

Calling a function

Function arguments

Any number of arguments

Returning a value

Returning multiple values

Operators

Arithmetic operators

Relational operators

Logical operators

Misc operators

Operator precedence

Control structures

if

elseif

else

Nesting if statements

Loops

while loops

Infinite loops

Breaking a loop

Repeat until loop

for loop

Nested loops

Summary

Tables and Objects

Technical requirements

Introduction to tables

Creating tables

Storing values

Table constructor

Tables are references

Arrays

Array constructor

Arrays are one-based

Sparse arrays

The size of an array

Multidimensional arrays

Iterating

Understanding pairs

Understanding ipairs

Closures

Iterator functions

Meta tables

setmetatable

getmetatable

__index

__newindex

rawget and rawset

__call

Operators

Math operators

Equivalence operators

Other operators

Objects

Classes

The : operator

Tables inside of objects

Inheritance

Single inheritance

Multiple inheritance

Summary

Lua Libraries

Technical requirements

The global table

Explicit variables

Dynamic variables

Environment

math

Trigonometry

Changing numbers

Comparing numbers

Randomness

Constants

Everything else

File IO

Opening a file

Writing data

Reading data

Reading line by line

Reading bits of data

Closing a file

Interfacing with the operating system

Working with time

Interacting with the shell

Working with files

More strings

Searching for a substring

Extracting a substring

Case manipulation

Creating and loading modules

Creating a module

Loading and using modules

Avoiding parsing

Executing files

Summary

Debugging Lua

Technical requirements

The debug library

Introspective information

The debug.getinfo return value

Filtering the information

Local variables

Hooks

Line ("l")

Call ("c")

Return ("r")

Setting a counter

Multiple hooks

Traceback

Debugger.lua

Using debugger.lua

Error-handling in Lua

pcall and error

assert

Profiling

The profile module

Using the profile module

Integrated development environments

LuaEdit

Breakpoints

Locals and Watch

Callstack

Decoda

Starting debugging

Everything else

Zero Brane Studio

Selecting an interpreter

Starting the debugger

Visual Studio Code

Summary

Embedding Lua

Technical requirements

Working with the C API

The stack

Pushing to the stack

Querying the stack

Reading from the stack

Stack size

Reading Lua variables from C

Loading a Lua file

Reading global variables

Example

Creating Lua variables from C

Calling Lua functions from C

Calling C functions from Lua

Working with tables in C

Reading values from a table

Writing values to a table

Meta tables

User data

Lua C API reference

Summary

Lua Bridge

Technical requirements

API conventions

Namespaces

Variables

Functions

Properties

Classes

Constructor

Subclass

Member variables, properties, and functions

Static variables, properties, and functions

Calling C functions from Lua

LuaRef

LuaRef and tables

Summary

Next Steps

Books

Programming In Lua

Learning Game AI Programming with Lua

LÖVE for Lua Game Programming

Lua Game Development Cookbook

Game Development with Lua

Beginning Lua Programming

Lua Programming Gems

Learn Lua for iOS Game Development

Game engines

LÖVE 2D

Defold

Corona

Leadwerks

Gideros

Urho 3D

Polycode

ShiVa

Game mods

Roblox

Garry's Mod

World Of Warcraft

Natural Selection 2

Don't Starve

Hack 'n' Slash

Scriptable software

CEGUI

Conky

Premake

Moho

Summary

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