ActionScript 3.0 Design Patterns

This hands-on introduction to design patterns is for experienced Flash developers ready to tackle sophisticated programming techniques with ActionScript 3.0. Now that ActionScript has been reengineered from top to bottom as a true object-oriented programming (OOP) language, reusable design patterns are an ideal way to solve common problems in Flash applications. But learning ActionScript 3.0 is a challenge for anyone without adding this extra learning curve. ActionScript 3.0 Design Patterns takes you step by step through the process, first by explaining how design patterns provide a clear road map for structuring code that actually makes OOP languages easier to learn and use. You will then learn about various types of design patterns and construct small abstract examples before trying your hand at building full-fledged working applications outlined in the book.

Dr. William Sanders is a Professor of Interactive Information Technology at the University of Hartford. He teaches courses in Flash, ActionScript, Flash Media Server, PHP, C#, SQL, and XHTML among other Internet languages. He has published 44 computer and computer-related books, written software ranging from Basic to Flash Media Server ActionScript and served as a consultant for different computer software companies.

Dr. Chadima Cumaranatunge is an Assistant Professor of Interactive Information Technology at the University of Hartford. He teaches an introduction to the IIT major, covering Flash and some ActionScript, a gaming course using Flash and ActionScript as well as educational technology courses in the Education, Nursing, and Health Professions College. Recently he received a grant to teach an experimental course in robotics.

Preface	p. xi
Constant Change
Object-Oriented Programming, Design Patterns, and ActionScript 3.0	p. 3
The Pleasure of Doing Something Well	p. 3
OOP Basics	p. 10
Abstraction	p. 11
Encapsulation	p. 15
Inheritance	p. 24
Polymorphism	p. 34
Principles of Design Pattern Development	p. 42
Program to Interfaces over Implementations	p. 45
Favor Composition	p. 49
Maintenance and Extensibility Planning	p. 57
Your Application Plan: It Ain't You Babe	p. 60
Creational Patterns
Factory Method Pattern	p. 65
What Is the Factory Method Pattern?	p. 65
Abstract Classes in ActionScript 3.0	p. 68
Minimalist Example	p. 69
Hiding the Product Classes	p. 73
Example: Print Shop	p. 74
Extended Example: Color Printing	p. 80
Key OOP Concepts Used in the Factory Method Pattern	p. 84
Example: Sprite Factory	p. 84
Example: Vertical Shooter Game	p. 90
Summary	p. 100
Singleton Pattern	p. 101
What Is the Singleton Pattern?	p. 101
Key OOP Concepts Used with the Singleton Pattern	p. 102
Minimalist Abstract Singleton	p. 105
When to Use the Singleton Pattern	p. 112
Summary	p. 125
Structural Patterns
Decorator Pattern	p. 129
What Is the Decorator Pattern?	p. 129
Key OOP Concepts Used with the Decorator Pattern	p. 132
Minimalist Abstract Decorator	p. 135
Applying a Simple Decorator Pattern in Flash: Paper Doll	p. 141
Decorating with Deadly Sins and Heavenly Virtues	p. 148
Dynamic Selection of Concrete Components and Decorations: A Hybrid Car Dealership	p. 164
Summary	p. 176
Adapter Pattern	p. 177
What Is the Adapter Pattern?	p. 177
Object and Class Adapters	p. 179
Key OOP Concepts in the Adapter Pattern	p. 185
Example: Car Steering Adapter	p. 185
Extended Example: Steering the Car Using a Mouse	p. 193
Example: List Display Adapter	p. 194
Extended Example: Displaying the O'Reilly New Books List	p. 199
Summary	p. 203
Composite Pattern	p. 204
What Is the Composite Pattern?	p. 204
Minimalist Example of a Composite Pattern	p. 207
Key OOP Concepts in the Composite Pattern	p. 217
Example: Music Playlists	p. 217
Example: Animating Composite Objects Using Inverse Kinematics	p. 222
Using Flash's Built-in Composite Structure: the Display List	p. 233
Summary	p. 243
Behavioral Patterns
Command Pattern	p. 247
What Is the Command Pattern?	p. 247
Minimalist Example of a Command Pattern	p. 251
Key OOP Concepts in the Command Pattern	p. 255
Minimalist Example: Macro Commands	p. 255
Example: Number Manipulator	p. 258
Extended Example: Sharing Command Objects	p. 263
Extended Example: Implementing Undo	p. 266
Example: Podcast Radio	p. 270
Extended Example: Dynamic Command Object Assignment	p. 276
Summary	p. 281
Observer Pattern	p. 282
What Is the Observer Pattern?	p. 282
Key OOP Concepts Used with the Observer Pattern	p. 285
Minimalist Abstract Observer	p. 289
Example: Adding States and Identifying Users	p. 294
Dynamically Changing States	p. 302
Example: Working with Different Data Displays	p. 318
Summary	p. 330
Template Method Pattern	p. 331
What Is the Template Method Pattern?	p. 331
Key OOP Concepts Used with the Template Method	p. 335
Minimalist Example: Abstract Template Method	p. 338
Employing Flexibility in the Template Method	p. 341
Selecting and Playing Sound and Video	p. 344
Hooking It Up	p. 351
Summary	p. 356
State Pattern	p. 357
Design Pattern to Create a State Machine	p. 357
Key OOP Concepts Used with the State Pattern	p. 360
Minimalist Abstract State Pattern	p. 361
Video Player Concrete State Application	p. 367
Expanding the State Design: Adding States	p. 374
Adding More States and Streaming Capabilities	p. 382
Summary	p. 397
Strategy Pattern	p. 398
What Is the Strategy Pattern?	p. 398
Key OOP Concepts Used with the Strategy Pattern	p. 400
Minimalist Abstract State Pattern	p. 402
Adding More Concrete Strategies and Concrete Contexts	p. 406
Working with String Strategies	p. 414
Summary	p. 423
Multiple Patterns
Model-View-Controller Pattern	p. 427
What Is the Model-View-Controller (MVC) Pattern?	p. 427
Communication Between the MVC Elements	p. 428
Embedded Patterns in the MVC	p. 430
Minimalist Example of an MVC Pattern	p. 431
Key OOP Concepts in the MVC Pattern	p. 443
Example: Weather Maps	p. 443
Extended Example: Infrared Weather Maps	p. 451
Example: Cars	p. 457
Custom Views	p. 463
Adding a Chase Car	p. 466
Summary	p. 468
Symmetric Proxy Pattern	p. 469
Simultaneous Game Moves and Outcomes	p. 469
The Symmetric Proxy Pattern	p. 473
Key OOP Concepts Used with the Symmetric Proxy	p. 475
The Player Interface	p. 477
The Referee	p. 478
Information Shared Over the Internet	p. 483
Player-Proxy Classes	p. 486
Classes and Document Files Support	p. 494
Summary	p. 498
Index	p. 499
Table of Contents provided by Ingram. All Rights Reserved.

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ActionScript 3.0 Design Patterns

Summary

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Table of Contents

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