使用Unity和UFPS创建FPS游戏实战

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"Building an FPS Game with Unity(PACKT,2015)" 是一本指导读者如何使用Unity游戏引擎创建3D第一人称射击(FPS)游戏的书籍，它结合了VisionPunk的UFPS框架和ProCore3D的Prototype/ProBuilder 2.0工具。在本书中，作者John P. Doran引领读者踏上使用Unity开发高品质FPS游戏的旅程。首先，你会了解到如何设置开发环境，然后进入具体的游戏设计环节。这个阶段包括创建定制武器，这涉及到武器的模型、动画以及与玩家交互的逻辑。学习如何利用Prototype/ProBuilder 2.0工具快速原型化和构建游戏关卡，无论是户外场景还是室内环境，都可以通过该工具灵活设计。此外，书中还会介绍如何让游戏世界更具生机，例如添加动态元素、AI敌人以及环境交互性。接下来，是游戏细节打磨的过程。这部分内容涵盖了光照、阴影、纹理以及其他视觉效果的优化，以提升游戏的整体视觉体验。同时，书里会教授如何使用Unity的物理引擎来实现真实的弹道模拟和碰撞检测，增强游戏的真实感。进入后期制作阶段，你将学习到如何创建自定义GUI（图形用户界面）和菜单系统。这部分内容不仅包括主菜单、选项菜单的设计，还包括游戏中的UI元素如生命值、弹药量等的显示，以及各种提示信息的处理。通过这些，可以使游戏更加完整，提升玩家的沉浸感。最后，书中的实践项目将帮助你整合所有元素，将一个概念性的游戏项目转化为一个可以实际运行的游戏产品。这涉及到测试、调试、优化和打包发布等多个环节，确保游戏能在目标平台上流畅运行。《Building an FPS Game with Unity》是一本面向有一定Unity基础的开发者的技术指南，通过实例教学，它将帮助你掌握使用Unity和相关框架开发高质量FPS游戏的关键技能。无论你是独立开发者还是在大型游戏工作室工作，这本书都能提供宝贵的参考和实践指导。

Table of Contents

[ iii ]

Chapter 8: Creating a Custom GUI 255

Prerequisites 255

Creating a main menu: part 1 – adding text 256

Creating a main menu: part 2 – adding buttons 261

Creating a main menu: part 3 – button functionality 265

Replacing the default UFPS HUD 270

Summary 278

Chapter 9: Finalizing Our Project 279

Prerequisites 279

Building the game in Unity 279

Building an installer for Windows 283

Building an installer for Windows 287

Summary 296

Index 297

Preface

[ vi ]

Chapter 3, Prototyping Levels with Prototype, will help us take on the role of a level

designer, who has been tasked to create a level prototype to prove that our gameplay

is solid. We will make use of the free tool Prototype to help in this endeavor. In

addition, you will also learn some beginning level designing.

Chapter 4, Creating Exterior Environments, explores the various ways to add more

organic-feeling areas to your levels, making use of Unity's different terrain tools

while also adding water, trees, grass, custom skyboxes, and fog to create a complete

environment that can be used in your project.

Chapter 5, Building Encounters, will show how to create various types of encounters

that players may experience to create effective gameplay scenarios starting with a

simple turret, then creating a melee enemy using the free RAIN AI Engine as well

as a ranged enemy using Shooter AI. You will then learn how to place enemies as

well as spawn them into our scene. Lastly, you will learn how to place ammo and

healthpacks in the level to guide players through the level.

Chapter 6, Breathing Life into Levels, will explore some of the ways we can breathe life

into our levels with moving objects and more things that the player can interact with,

such as exploding barrels, moving doors, and elevators.

Chapter 7, Adding Polish with ProBuilder, will take all of the pieces we created in the

previous chapters and put them together to create a nished level. You will learn

how to upgrade Prototype levels to using ProBuilder, gaining the ability to add

materials to wall faces and create custom UVs. You will also learn how to create

materials and how to mesh your levels to create a complete environment.

Chapter 8, Creating a Custom GUI, will demonstrate how to use Unity's new GUI

system to create a custom GUI to replace the one given to us by UFPS to help our

project stand out.

Chapter 9, Finalizing Our Project, will focus on exporting our game from Unity and

then creating an Installer so that we can give it to all of our friends, family, and

prospective customers.

What you need for this book

Throughout this book, we will be working within the Unity 3D game engine that you

can download from http://unity3d.com/ unity/download/. The projects were

created using version 5.0.1, but the project should work with minimal changes.

For simplicity's sake, we will assume that you are working on a Windows-powered

computer. Though Unity allows you to code in either C# or UnityScript, for this

book, we will be using C#.

Preface

[ vii ]

We will also be using assets that are available from the Asset Store in Unity, most

notably UFPS which costs money ($95 normally, but it also has sales where it can

be gotten for cheaper). Aside from UFPS, all of the other topics will cover how to

use a free asset to accomplish things while also discussing an easier to use asset

which does cost. Readers will use ProCore3D's free Prototype tool for the creation of

levels while also learning how you may upgrade your project to using ProBuilder in

Chapter 9, Finalizing Our Project, for advanced functionality, but it also costs money.

For enemies, you will also learn how to use the free RAIN toolkit for melee enemies

and how to use Shooter AI for ranged enemies, which costs money.

Who this book is for

This book is for those who want to create an FPS game in Unity and gain knowledge

on how to customize it to be their very own. If you are familiar with the basics of

Unity, you will have an easier time, but it should make it possible for someone with

no prior experience to learn Unity at an accelerated pace.

Conventions

In this book, you will nd a number of text styles that distinguish between different

kinds of information. Here are some examples of these styles and an explanation of

their meaning.

Code words in text, database table names, folder names, lenames, le extensions,

pathnames, dummy URLs, user input, and Twitter handles are shown as follows:

"We can include other contexts through the use of the include directive."

A block of code is set as follows:

void OnTriggerEnter(Collider other)

{

//If the player touches the trigger, and if it hasn't

//been triggered before

if(other.tag == "Player" && hasTriggered == false)

{

// Spawn a new enemy using the properties from the

// spawnPoint object

GameObject newEnemy = Instantiate(enemy,

spawnPoint.position,

spawnPoint.rotation)

as GameObject;

// We only want this to happen once.

hasTriggered = true;

}

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