探索iPhone游戏开发：创新设计与商业潜力

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"《iPhone Game Development》(O'Reilly, 2009-11) 是一本关于在苹果iPhone平台上开发游戏的专业书籍，由Paul Zirkle和Joe Hogue撰写。该书深入探讨了利用iPhone的高性能硬件、触摸屏和陀螺仪接口进行创新游戏设计的技术和策略，同时介绍了通过iTunes App Store进行独立开发和盈利的途径。" 在iPhone游戏开发的世界中，这本书提供了一条通向成功的路径。作者首先强调了iPhone作为新型游戏平台的巨大潜力，其强大的硬件性能为图形和内容处理提供了充足的资源，而独特的触摸界面和陀螺仪则为游戏设计带来了前所未有的创新机会。这使得开发者可以设计出既吸引人又具有独特交互体验的游戏。书中详细讲解了如何利用Objective-C（当时iPhone的主要编程语言）和苹果的iOS SDK来构建游戏。读者将学习到如何设置开发环境、理解和使用Cocoa Touch框架、以及如何创建动态和引人入胜的用户体验。作者还会讨论如何优化代码以充分利用iPhone的硬件性能，确保游戏运行流畅。此外，书籍还涵盖了App Store的发布流程，包括应用提交、审核、定价和市场营销策略。对于独立开发者来说，App Store的开放市场意味着更低的准入门槛和更直接的收入跟踪，这为他们提供了与大型游戏发行商竞争的机会。书中的章节可能包含如何编写吸引人的应用描述、创建引人注目的图标，以及如何利用社交媒体进行推广等内容。在技术层面，本书可能会涉及图形编程，如OpenGL ES的使用，以及如何实现触摸和运动感应控制。还有可能讲解如何实现游戏逻辑、物理模拟、音频集成以及游戏状态管理。对于网络功能，如多人在线游戏的支持，也可能有相应的指导。《iPhone Game Development》是一本全面的指南，旨在帮助开发者充分利用iPhone平台的独特优势，创造出富有创意且商业成功的游戏。无论你是初学者还是经验丰富的程序员，都能从书中获得宝贵的见解和实践技巧，以应对这个快速发展的领域的挑战。

not download Xcode separately because it is included within the SDK download

package (and the version of Xcode that comes with the SDK may be newer than

what is otherwise available).

5. Once downloaded, install the SDK, which will make Xcode and Interface Builder

accessible to you in the /Developer/Applications folder on your hard drive (you can

also activate Spotlight and search for Xcode and Interface Builder to launch either

application quickly).

The free developer account will allow you to build applications and run them in a

simulator on your Mac. However, to load your application onto a phone, you will also

need to sign up for the paid developer program. This requires a small annual fee, so

even if you are a private developer, it won’t hurt your wallet too much:

1. Go to http://developer.apple.com/iphone/program/apply.html.

2. You will have two options: Standard Program and Enterprise Program. If you are

writing games for the general public, you probably do not want the Enterprise

Program. If you read closely, you will notice the Enterprise Program is actually for

creating applications that only you and your company will use internally. If you

plan to create games that will be sold via the App Store, rest assured that the

Standard Program is the correct choice for you.

3. Select Enroll Now and log in if necessary.

4. You now have another choice: enroll as an individual or as a company. If you

choose Individual, you will not be able to add other programmers or quality as-

surance members to your account, which is necessary to distribute your application

to others during the development and testing process. However, if you select Com-

pany, you will be required to provide detailed information about your company.

5. Continue through the website, selecting the appropriate information, until you

arrive at a screen that says “Thank you for submitting your enrollment.” Now you

must wait for an email from Apple (which may take on the order of a month to

arrive).

Signing up for the paid developer program will also give you access to

beta releases of future versions of the iPhone OS and SDK, but only

during the times at which Apple chooses to make them available.

It is good to get your paid developer account enrollment going as soon as possible so

that it will be available when you actually need it.

Application Bundles

When you build an application using Xcode, the end result is called an application

bundle. In Mac OS X and the iPhone, an application bundle is a special type of directory

2 | Chapter 1: Introduction to the iPhone

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that holds an executable file and the resources needed to run it. This includes an icon

to represent the application, files with special information about the application, and

any images or sounds the application uses.

In the Finder, an application bundle simply appears as its application

icon; right-click or Ctrl-click on it and select View Package Contents

from the menu to see what’s inside.

Although you can’t do this on the iPhone, you can find iPhone appli-

cations in the iPhone Simulator. If you have the iPhone SDK installed,

you can use Spotlight to search for the MobileSafari.app file. Show this

file in the Finder (don’t try to run it on your Mac), and view its package

contents (some of which appears in the following list).

A typical iPhone application bundle might have the following structure:

Executable

(Required.) This is the compiled code executable; it will typically have the same

name as your application. In MobileSafari.app, this is the file named MobileSafari.

Info.plist

(Required.) This is a collection of properties, in key-value pair form, that specifies

important information about your application. Notable properties listed here are

the display name of your application, the version number, and a unique ID number.

These files use a binary format that can’t be read in a text editor, but you can use

the Property List Editor located in /Developer/Applications/Utilities to view them.

icon.png

(Required.) This is a 57 × 57 pixel icon used to represent your application on the

iPhone’s home screen. Glossy button effects will be added on top of this image

automatically, so it should be flat-colored.

Various resources

(Optional.) All common resource files, such as images, sounds, and binary data,

used by your application will be placed in the same folder as the executable. The

only subfolders present in an iPhone application bundle are for localized resources.

Localization folders

(Optional.) If your application supports multiple languages, you may add sub-

folders to the bundle, which contain resources that cater to individual languages.

The folder names will have a language name or an ISO language abbreviation fol-

lowed by “.lproj”; for example, English.lproj, French.lproj, German.lproj, and

uk.lproj would each contain resources specific to English, French, German, and

UK English languages, respectively.

Settings.bundle

(Optional.) You will create this file if you want your application to provide user

preference options in the Settings application that comes with the iPhone.

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Icon-Settings.png

(Optional.) If you added a Settings.bundle file, this image is used to represent the

application in the Settings application. The image should be 29 × 29 pixels. How-

ever, if you do not add this image, the Icon.png image will be scaled and used

automatically.

MainWindow.nib

(Optional.) Created by the Interface Builder application, MainWindow.nib con-

tains code and resources necessary to draw your application as it starts up.

More .nib files can be loaded after this one, but it will always be the first in memory.

Default.png

(Optional.) This image is displayed as the application is loading the Main-

Window.nib file. It should be full screen, which is 480 × 320 pixels on the iPhone.

If this image is close to what the user will see when the application is finished

loading, the load process will appear to take less time.

iTunesArtwork

(Optional.) If you are distributing the application outside the App Store, this art-

work is used to display your application when loading onto a handset using iTunes.

探索iPhone游戏开发：创新设计与商业潜力

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iPhone Game Development and iPhone Game Project ebook and source code

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iPhone Game Development: Developing 2D & 3D games in Objective-C

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