ActionScript 3.0 Design Patterns.pdf - VideoTutorials-bg.com

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MapTypeController.as, 454 MapView.as, 449 Mariner.as, 166 Media.as, 53 metamorphosis, 34 methods, public versus protected attributes, 72 Model.as, 141, 432, 445 models, 430 Model-View-Controller pattern (see MVC pattern) modules, 15 MoveButton.as, 495 MovieClip class, 7 MovieClip scripts, 5 MP3.as, 169 Mp3.as, 53 MP3Player.as, 39 Muff.as, 145 MultifunctionPrintJob.as, 79 multiple design patterns, 425 multiple inheritance, 182 MVC (Model-View-Controller) pattern, 425, 427–431 cars, 457–466 building the car, 462 chase car, adding, 466–468 controller, 460 custom views, 463–466 direction guage view, 464 GPS view, 464 model, 458–459 views, 461 communication between elements, 428 embedded patterns in, 430 infrared weather maps, 451–457 controllers, adding, 454 models, adding, 452 MVC triad, building, 456 views, adding, 454 integration of Observer, strategy, and Composite patterns, 468 key features, 442 minimal example, 431–442 controller, concrete strategy in a Strategy pattern, 433 model, concrete subject in Observer pattern, 431–433 MVC triad, building, 435 nested views, 436–441 view as concrete observer in Observer pattern and context in Strategy pattern, 434 OOP concepts in, 443 summary, 468 weather maps, 443–451 controller, 446 model element, 444 model, setting to self-update, 451 MVC triad, building, 450 views, 447 MyClient.as, 45 Myers, Tom, 4 MyObject.as, 44 N Nakhimovsky, Alexander, 4 nested views, 436–442 and Composite pattern,, 436 building the structure, 441 net.ObjectEncoding class, 382 NetBtn.as, 370 new keyword, 65 NewHighVolPrintCenter.as, 82 NewLowVolPrintCenter.as, 81 NewModel.as, 453 NewPrintCenter.as, 81 O Obfuscation.as, 158 object adapters, 179 minimal example, 179 object composition, 285 class inheritance, versus, 49 object-oriented programming (see OOP) Observer pattern, 246, 282–289 adding states and identifying users, 294–302 ConcreteObserver class, 296 multiple states, 295 newspaper subscription, 300–302 updated Observer, 297–300 different data displays, working with, 318–330 concrete classes, 319 data design classes, 321–326 main class, pulling elements together in, 327–330 output designer, 318 dynamically changing states, 302 key features, 283 Index | 505
minimal abstract Observer, 289–294 space battle game, 302–317 battles, recording, 303 concrete classes, 303–306 launching a battle, 306–317 summary, 330 OOP (object-oriented programming), 3, 10–42 abstraction, 11–15 advantages of, 15 Adapter pattern, key OOP concepts in, 185 code reuse, 33 Command pattern, OOP concepts in, 255 Composite pattern, OOP concepts in, 217 composition versus inheritance, 185 Decorator pattern, OOP concepts used with, 132–134 design patterns, improving with, 61 encapsulation, 15–24 Factory Method pattern, concepts used in, 84 four basic concepts, 11 inheritance, 24–34 meeting client goals with, 60 multiple inheritance, 182 MVC pattern, OOP concepts in, 443 open-closed principle, 67 polymorphism, 34–42 procedural programming languages, versus, 5 Singleton pattern, concepts used in, 102–105 State pattern, OOP concepts used with, 360 Strategy pattern, OOP concepts used with, 400–402 delegation and delegates, 401 encapsulating variation, 400 Symmetric Proxy pattern, OOP concepts used with, 475 communication flexibility, 476 game flexibility, 476 Template Method pattern, concepts used in, 335 abstract functions and override flexibility, 336 Hollywood Principle, 337 inheritance versus composition, 335 variation, 337 506 | Index OOPSLA, 470 open for extension, 67 Openness.as, 155 operation( ) method, 209 OrangeDress.as, 143 override statement, 31, 134, 138 P packages, 69 parallel class hierarchies, 83 parameterized adapter classes, 181 parameterized factory methods, 79 integrating, 81 parameters, 66 parents, 205 PasswordVerify.as, 419 Passwork.as, 417 PauseState.as, 377, 387 Plasma.as, 38 plasma.flv, 41 PlayAbstract.as, 14 PlayAudio.as, 54 Playlist.as, 218 PlayMedia .as, 349 PlayMusic.as, 36 PlayPodcastCommand.as, 272 PlayState.as, 365, 369, 376, 386 PlayTune.as, 348 PlayVideo.as, 12, 54, 347 PlayVideoAbstract class, 14 PlayVideoAbstract.as, 13 Podcast XML feed, 271 podcasts, 270 polymorphism, 34–42, 217, 360 interfaces, implementing with, 37 Polymorphism.as, 35 Prejudice.as, 158 PrintCenter.as, 76 Printjob.as, 76 Prius.as, 166 procedural programming, 4 product classes, 66 Product.as, Product1.as, and Product2.as, 70 program to interfaces over implementations, 45, 285 Projectile.as, 92 protected classes, 74 proxygame.asc, 484 public classes, 71 public statement, 31 PublicClass.as, 104
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ActionScript 3.0 Design Patterns
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ActionScript 3.0 Design Patterns Wi
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Bill would like to dedicate this to
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Example: Sprite Factory 84 Example:
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Video Player Concrete State Applica
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Who This Book Is For We wanted to d
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What You Need to Use This Book You
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and OOP. (Working out how to conver
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Safari® Enabled When you see a Saf
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Editors Our development editor, Rob
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Design patterns provide object-orie
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that program. Like pulling a string
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Built-in State Machines: while most
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Figure 1-2. Rocket drawing Center p
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Example 1-1. TestRocket.as package
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skills that would provide the concr
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Example 1-3. PlayVideoAbstract.as (
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Hiding Your Data from Bad Consequen
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Example 1-7. Encap.as (continued) }
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Wait! There’s more! Later in this
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As you can see in Example 1-9, the
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Using Encapsulation and Design Patt
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Example 1-13. QuadPets.as (continue
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Using Interfaces and Abstract Class
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interface. You’ll need an MP3 fil
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Example 1-22. Subclass.as package {
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Example 1-25. ImplementSubChange.as
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Example 1-29. Country.as (continued
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Example 1-32. IBiz.as package { pub
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Example 1-35 has further difference
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In addition to messages in the Outp
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state here is a bit more contextual
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your client dependency leads to une
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Example 1-40. VidPlayer.as (continu
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Doing Composition To understand com
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The clearest way we’ve seen compo
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Example 1-47. Mp3.as (continued) }
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Example 1-54. TestMedia.as (continu
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and ActionScript 3.0. However, the
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Figure 1-10 shows some possible fut
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introduction to OOP, you will find
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Creational Patterns Conceal creatio
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or dependency between the Client an
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The primary responsibility of the f
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The example package contains the Pr
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Example 2-5. CreatorA.as (continued
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instantiate concrete products var p
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Example 2-8. IPrintjob.as package p
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Clients Note that the client doesn
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Extended Example: Color Printing Th
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Example 2-19. NewLowVolPrintCenter.
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Key OOP Concepts Used in the Factor
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to implement default behavior commo
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Example 2-26. ShapeCreator.as packa
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draw filled shapes filledShapeCreat
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checking if the projectile has gone
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Example 2-32. AlienMine.as (continu
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Example 2-34. AlienShip.as } } } }
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Example 2-36. Weapon.as (continued)
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Concrete Creator Classes Until we e
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in teamwork, the Singleton can be u
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To create a class, we need a public
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Example 3-4. Singleton.as package {
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Figure 3-3. Compiler not finding cl
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However, does that mean that only a
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Figure 3-5. Two instance labels and
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Example 3-10. Alert.as } } { Alert.
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However, had we done that, we would
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for playing the selected tune. If i
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MP3 file in the same folder, and re
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shipping costs. It constitutes a go
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open the Convert to Symbol dialog b
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PART III III.Structural Patterns Tr
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Chapter 4 CHAPTER 4 Decorator Patte
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like abstract classes, simply by no
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simple inheritance. Depending on ho
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Minimalist Abstract Decorator To ge
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eral months. Using a Decorator desi
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Example 4-5. DecConB.as package { /
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Applying a Simple Decorator Pattern
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If you want to create more concrete
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Example 4-15. Muff.as package { pub
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Figure 4-6. Paper doll with two dif
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Adding Properties and Methods Up to
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Decorating with Multiple Properties
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} override public function evil( ):
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Example 4-25. Compassion.as package
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Deadly sins Example 4-29. Rage.as p
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Example 4-33. Dogmatisms.as package
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class window in the Dual.fla Proper
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Example 4-37. Soul.as (continued) }
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Imagine that you are responsible fo
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Example 4-41. Accord.as (continued)
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Example 4-45. GPS.as package { publ
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Example 4-48. Deal.as 16 internal v
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Example 4-48. Deal.as 120 { 121 tra
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Figure 4-8. Decorator user interfac
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Chapter 5 CHAPTER 5 Adapter Pattern
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and their functionality to figure o
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Example 5-4. Main.as (continued) }
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Example 5-5. Adaptee.as package { p
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methods and properties to accomplis
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Example 5-9. LegacyCar.as 47 } 48 4
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ignition key of the car (assume tha
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Example 5-11. CarAdapter.as (contin
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Note that the new interface turns t
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var listField = new TextField( ); l
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Example 5-14. ListDisplayField.as 3
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Example 5-15. Main.as (document cla
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Example 5-17. Main.as (document cla
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Summary The adapter pattern allows
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objects and composite objects the s
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the components. We can think of tou
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method by tracing sName. When opera
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oot composite 1 leaf 1 leaf 2 compo
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Executing the following statements
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Example 6-6. The safeRemove( ) meth
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leaf 2 Composite 1 leaf 2 leaf 3 Di
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Example 6-9. Playlist.as (continued
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Example 6-10. Song.as 58 soundChann
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Using Inverse Kinematics Inverse ki
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Example 6-12. Composite.as package
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Example 6-14. Main.as 23 addChild(s
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The following steps relate to Figur
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Example 6-16. Tail.as package { imp
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Note how the snake is constructed u
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Example 6-18 shows the IPlane inter
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Unlike the Shape class, Sprite does
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Figure 6-9. Hierarchical tree struc
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Modifying Components to Reflect Dam
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private function showDamage(evt:Eve
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Behavioral Patterns Class Communica
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Notice the tight coupling between t
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Each envelope encapsulates a partic
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instance is passed to the construct
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Setting a Trigger to Invoke the Com
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Example 7-7. IMacroCommand.as packa
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Example 7-12. ConcreteMacroCommand.
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Example 7-14. TextButton.as package
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Example 7-15. InvokerPanel.as (cont
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Extended Example: Sharing Command O
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changes are seamlessly spread throu
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Example 7-21. IncrementCommandWithU
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Example 7-24. Client code for undoa
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Example 7-26. TextDisplayField.as (
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Example 7-28. Radio.as 44 var url =
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Example 7-30. Client code for the p
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Example 7-31. DynamicControlButtons
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adio, very much like someone progra
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Chapter CHAPTER 8 8 Observer Patter
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introduced, adding a class as part
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of an abstract class or an interfac
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works fine. What’s more, using th
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this all work right is the use of a
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Example 8-7. ConcreteSubject.as (co
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Example 8-9. TestSub.as (continued)
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} this.news=news; this.sports=sport
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Example 8-12. ConcreteSubject.as pa
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Example 8-13. ConcreteObserver.as (
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Whoaa!, the stock market is at 2987
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Example 8-17. ConcreteSubject.as pa
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Launching the Space Battle In Examp
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5. In the Symbol editing mode, drag
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Figure 8-5. Android shooting a beam
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Example 8-19. ChangeHandler.as (con
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To make the task more manageable an
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Example 8-24. ConcreteObserver.as p
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In this application, all you’re r
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Example 8-26. QuarterBar.as (contin
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Example 8-27. QuarterGraph.as (cont
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Example 8-28. DataDesign.as (contin
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Summary The real test for a design
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to inspect. So, you’re going to n
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method. The child classes just give
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Further, discussing favoring compos
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Figure 9-3. Hollywood principle Min
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tions in the main algorithm that yo
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Example 9-4. ShedMaker.as package {
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Both instances employ the templateM
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Not-So-Concrete Concrete Classes Th
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Example 9-11. PlayVideo.as (continu
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Example 9-13. PlayMedia .as (contin
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When to Hook? The hook’s useful w
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Example 9-15. FlightPlan.as (contin
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Open a new Flash document, and type
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One application where the state pat
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tive Simulation by Jonathan Kaye an
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For example, with a two-state machi
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Example 10-2. VideoWorks.as (contin
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To complete the state machine, we n
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Example 10-7. State.as package { //
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Example 10-10. VideoWorks.as (conti
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Example 10-13. TestVid.as package {
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Example 10-13. TestVid.as (continue
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Example 10-15. StopState.as (contin
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Example 10-17. PauseState.as 22 pub
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Example 10-19. TestPause.as (contin
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Figure 10-6 shows what your video p
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Figure 10-7. Statechart with five s
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Example 10-22. PlayState.as 1 packa
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Example 10-24. RecordState.as 1 pac
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Example 10-26. VideoWorks.as (conti
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Example 10-27. TestFMS.as (continue
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Chapter CHAPTER 11 11 Strategy Patt
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say that the Context class (aggrega
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etween the context classes and the
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Example 11-3. ConcreteStrategy.as p
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Adding More Concrete Strategies and
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Example 11-9. Tricks.as (continued)
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Even though we’ve discussed some
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Example 11-18. Bubbles.as package {
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Simply by adding setters to the con
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Contexts for String Strategies You
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Example 11-24. StringWork.as packag
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Example 11-29. SortAll.as package {
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Example 11-33. TestStringStrategy.a
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Using More Than One Pattern PART V
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Chapter 12 CHAPTER 12 Model-View-Co
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triggered by a user interacting wit
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grouped together in a tabbed panel
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Example 12-2. Model.as (continued)
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Example 12-5. View.as (continued) 1
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implementations in the MVC. Our vie
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Example 12-8. CompositeView.as (con
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Example 12-10. CharCodeLeafView.as
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Key OOP Concepts in the MVC Pattern
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Example 12-12. IModel.as (Model int
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Example 12-15. Controller.as (Contr
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Example 12-16. CBView.as 24 update(
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Note that only the combo boxview th
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Example 12-18. INewModel.as (contin
Page 476 and 477: Example 12-21. RBView.as package {
Page 478 and 479: add map type select radio button gr
Page 480 and 481: Example 12-23. CarModel.as (continu
Page 482 and 483: Example 12-25. RHController.as (con
Page 484 and 485: Example 12-28. Main.as (document cl
Page 486 and 487: Example 12-30. GPSView.as package {
Page 488 and 489: Example 12-32. ChaseController.as (
Page 490 and 491: Chapter 13 CHAPTER 13 Symmetric Pro
Page 492 and 493: • Indicate that a remote player h
Page 494 and 495: Even though both of the solutions a
Page 496 and 497: Referee 1 Player1 Proxy2 Internet S
Page 498 and 499: With a single template method, and
Page 500 and 501: developed with an eye to the order
Page 502 and 503: Boolean variables to false. (The fa
Page 504 and 505: Example 13-3. RPS.as (continued) }
Page 506 and 507: Example 13-4. proxygame.asc (contin
Page 508 and 509: Example 13-5. SymPlayer1.as package
Page 510 and 511: Example 13-5. SymPlayer1.as (contin
Page 512 and 513: Example 13-5. SymPlayer1.as (contin
Page 514 and 515: In addition to using the Referee to
Page 516 and 517: Example 13-6. DynamicText.as (conti
Page 518 and 519: 3. Click the Text layer to select i
Page 520 and 521: A abstract classes, 28, 31, 68, 130
Page 522 and 523: increment and decrement commands, 2
Page 524 and 525: E ECOOP, 470 EmailCheck.as, 418 enc
Page 528 and 529: Q QuadPets.as, 25 R Radio.as, 273 R
Page 530: T Tail.as, 231 Target.as, 180 Templ
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