Lua Game Development Cookbook电子书

Lua Game Development Cookbook

Table of Contents

Lua Game Development Cookbook

Credits

About the Author

About the Reviewer

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Preface

What this book covers

What you need for this book

Who this book is for

Sections

Getting ready

How to do it…

How it works…

There's more…

See also

Conventions

Reader feedback

Customer support

Downloading the example code

Errata

Piracy

Questions

1. Basics of the Game Engine

Introduction

Preparing a basic file structure for the game engine

Getting ready

How to do it…

How it works…

Making a stack

Getting ready

How to do it…

How it works…

Making a queue

Getting ready

How to do it…

How it works…

Making a prioritized queue

Getting ready

How to do it…

How it works…

Extending ipairs for use in sparse arrays

Getting ready

How to do it…

How it works…

Creating Lua modules

Getting ready

How to do it…

A module that returns a table as an interface

A module in the form of an object

A module in the form of a singleton object

How it works…

Handling errors with pcall, xpcall, and assert

Getting ready

How to do it…

How it works…

Using Lua with existing projects written in C/C++

Getting ready

How to do it…

Initializing the Lua state

Creating a Lua module in C/C++

Passing variables from C/C++ into the Lua environment

Passing variables from the Lua environment to C/C++

Making the C++ class accessible from Lua with Lutok2

How it works…

Getting LuaSDL for libSDL 1.2

Getting ready

How to do it…

There's more…

Designing the main application loop with LuaSDL

Getting ready

How to do it…

How it works…

2. Events

Introduction

Processing input events with LuaSDL

Getting ready

How to do it…

Event handling with the if-then-else chain

Event handling with an associative array

How it works…

See also

Using the keyboard input

Getting ready

How to do it…

Normal keys

Modifier keys

How it works…

See also

Using the relative mouse position

Getting ready

How to do it…

There's more…

Using the absolute mouse position

How to do it…

Using timers

Getting ready

How to do it…

How it works…

There's more…

3. Graphics – Common Methods

Introduction

Creating a window in libSDL

Getting ready

How to do it…

How it works…

Creating surfaces

Getting ready

How to do it…

How it works…

There's more…

Surfaces manipulation

Getting ready

How to do it…

How it works…

Using colors

Getting ready

How to do it…

How it works…

Cursor manipulation

Getting ready

How to do it…

How it works…

See also

Initializing the graphics mode with OpenGL

Getting ready

How to do it…

How it works…

Getting OpenGL information

Getting ready

How to do it…

Getting the OpenGL version

Getting the graphic card vendor

Getting the graphic card name

Getting the extensions list

How it works…

Using OpenGL extensions with GLEW and Lua

Getting ready

How to do it…

How it works…

Loading images with SDL_image

Getting ready

How to do it…

How it works…

Creating textures

Getting ready

How to do it…

How it works…

There's more…

Loading and using bitmap fonts

Getting ready

How to do it…

How it works…

There's more…

See also

Loading and using TrueType fonts

Getting ready

How to do it…

How it works…

See also

Displaying the text

Getting ready

How to do it…

How it works…

See also

Creating texture atlas with the rover-design pattern

Getting ready

How to do it…

How it works…

Using tiles and tilesets in the game

Getting ready

How to do it…

How it works…

See also

4. Graphics – Legacy Method with OpenGL 1.x–2.1

Introduction

Drawing primitives in immediate mode

Getting ready

How to do it…

Drawing points

Drawing lines

Drawing line strips

Drawing line loops

Drawing triangles

Drawing triangle strips

Drawing triangle fans

Drawing quads

Drawing quad strips

Drawing polygons

How it works…

See also

Setting up blending

Getting ready

How to do it…

Additive blending

Subtractive blending

Alpha blending

How it works…

Moving, rotating, and scaling objects

Getting ready

How to do it…

How it works…

The identity matrix

The translation matrix

The scale matrix

The rotation matrix

There's more…

See also

Setting up the orthogonal and perspective cameras

Getting ready

How to do it…

The orthogonal mode

The perspective mode

How it works…

There's more…

See also

Setting up materials

Getting ready

How to do it…

How it works…

There's more…

See also

Setting up lighting

Getting ready

How to do it…

How it works…

There's more…

See also

Using display lists

Getting ready

How to do it…

How it works…

See also

Setting up the vertex buffer

Getting ready

How to do it…

How it works…

There's more…

5. Graphics – Modern Method with OpenGL 3.0+

Introduction

Loading and using GLSL shaders

Getting ready

How to do it…

How it works…

See also

Using uniform variables with shaders

Getting ready

How to do it…

Writing into uniform variables

Reading from uniform variables

How it works…

Writing a vertex shader

Getting ready

How to do it…

How it works…

There's more…

See also

Writing a fragment (pixel) shader

Getting ready

How to do it…

How it works…

There's more…

See also

Drawing primitives using vertex buffers

Getting ready

How to do it…

Vertex positions

Vertex colors

Vertex texture coordinates

How it works…

There's more…

See also

Rendering to texture

Getting ready

How to do it…

The render buffer with the color attachment

The render buffer with the depth attachment

How it works…

See also

Applying highlights and shadows to the scene

Getting ready

How to do it…

Vertex shader

Fragment shader

How it works…

See also

Bumpmapping

Getting ready

How to do it…

Vertex shader

Fragment shader

How it works…

There's more…

See also

6. The User Interface

Introduction

Drawing a simple window

Getting ready

How to do it…

How it works…

Moving the window

Getting ready

How to do it…

How it works…

Using the window hierarchy

Getting ready

How to do it…

Child window rendering

Event propagation

How it works…

See also

Showing the part of the window with the stencil test and window content scrolling

Getting ready

How to do it…

How it works…

See also

Window controls and interaction

Getting ready

How to do it…

Button

Edit box

How it works…

There's more…

See also

7. Physics and Game Mechanics

Introduction

Using Box2D with Lua

Getting ready

How to do it…

How it works...

Using vector math

Getting ready

How to do it…

How it works…

Choosing the correct vector scaling for the physics engine

Getting ready

How to do it…

How it works…

Creating static and dynamic objects

Getting ready

How to do it…

How it works…

There's more…

Setting up object properties

Getting ready

How to do it…

Movement damping

Object gravity scale

Fixed rotation

Object sleeping

Object mass and rotational inertia

Friction

Restitution

Density

How it works…

Moving objects

Getting ready

How to do it…

The continual force

Impulses

Object velocity information

How it works…

Setting up bullets

Getting ready

How to do it…

How it works…

Running the physics simulation

Getting ready

How to do it…

The fixed-time step

The dynamic-time step

How it works…

There's more…

Detecting object collision

Getting ready

How to do it…

How it works…

The beginContact callback

The endContact callback

The preSolve callback

The postSolve callback

There's more…

Setting up object collision filtering

Getting ready

How to do it…

How it works…

There's more…

Setting up object joints

Getting ready

How to do it…

Revolute joint

The prismatic joint

The distance joint

The rope joint

The weld joint

The pulley joint

The wheel joint

The gear joint

The motor joint

The mouse joint

The friction joint

How it works…

See also

8. Artificial Intelligence

Introduction

A simple pathfinding algorithm for a maze

Getting ready

How to do it…

Maze generation

Maze solving

How it works…

Pathfinding for tile-based environments with obstacles

Getting ready

How to do it…

How it works…

Heuristic

There's more…

See also

Using a fuzzy logic for decision making

Getting ready

How to do it…

A fuzzy set

A linguistic variable

A rule

A solver

A usage

How it works…

9. Sounds and Networking

Introduction

Initializing the audio subsystem

Getting ready

How to do it…

How it works…

Playing sound samples

Getting ready

How to do it…

How it works…

There's more…

See also

Playing background music

Getting ready

How to do it…

How it works…

See also

Network communication with ZeroMQ

Getting ready

How to do it…

How it works…

Creating a basic client-server architecture

Getting ready

How to do it…

The server part

The client part

How it works…

Sending messages to many hosts at once

Getting ready

How to do it…

The publisher part

The subscriber part

How it works…

Communication between threads

Getting ready

How to do it…

How it works…

Index