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

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E ECOOP, 470 EmailCheck.as, 418 encapsulate what varies, 337 encapsulated algorithms, 401 encapsulating variation, 400 encapsulation, 15–24, 248 purpose, 16 enter frame event handler, 188 Escape.as, 167 execute( ) method, 250, 251 extensiblilty planning, 57–60 F factories, 66 Factory Method Minimalist.fla, 69 Factory Method pattern, 63, 65–68 color printing example, 80–83 clients, 83 new creator classes, 81 new product classes, 80 parallel class hierarchies, 83 concrete creator classes, 100 creator classes, 66 key OOP concepts, 84 minimal example, 69–74 clients, 72 creator classes, 71 product classes, 70 product classes, hiding, 73 object creation and reduction of coupling, 84 parameterized factory methods, 79 integrating, 81 print shop example, 74–79 clients, 78 creator classes (print centers), 76 extension, 78 product classes (print jobs), 75 product classes, 66 Sprite factory, 84–90 clients, 89 creator classes (shape creators), 87 product classes (shape widgets), 85 summary, 100 vertical shooter game, 90–100 clients, 100 creator classes, 97–99 product classes, 91–97 factory methods, 67 FallDown.as, 409 FancyPrintCenter.as, 79 FashionShow.as, 145 favor object composition over class inheritance, 49–51, 56, 285, 288 FilledCircleWidget.as, 87 FilledShapeCreator.as, 89 FilledSquareWidget.as, 87 Flash CS3, xiv document class, 69 MovieClip and Button objects, making classes from, 7 Flash Media Server 2 (see FMS2) Flash paper doll, 141–147 component class, 141 concrete classes, 142 concrete component class, 142 concrete decorator classes, 143 Decorator class for dressing dolls, 141 implementing the paper doll decorator, 145–147 Flex 2, xiv, xv FlightPlan.as, 353 FMS2 (Flash Media Server 2), xiv, xv State pattern and, 383 G Gamma, Erich, xii Gang of Four (GoF), xiv generic concrete decoration, 152 Geostationary Satellite Server, 443 getInstance( ) function, 108 GoF (Gang of Four), xiv GPS.as, 169 GPSView.as, 465 granularity, 59, 414 Guitar.as, 28 H HasBase .as, 50 Hat.as, 144 Head.as, 226 HeatedSeat.as, 168 heavenly virtues, 153–156 Heliotis, James, 470 Helm, Richard, xii HeroCannonBall.as, 93 HeroShip.as, 96 HeroWeapon.as, 98 HighVolPrintCenter.as, 77 Hollywood Principle, 333, 337 Index | 503
hook operation, 334, 351–356 Baja flight example, 352–356 uses for, 352 Hope.as, 154 hybrid car dealership, 164–176 auto options as decorators, 167–170 hybrid car components, 165 Auto abstract components, 165 hybrid car classes concrete components, 166 user interface, 170–176 Flash document creation, 174 implementing concrete components and decorators, 175 I ICar.as, 458 IChaseHandler.as, 466 ICompInputHandler.as, 446 IKeyboardInputHandler.as, 433, 460 IMacroCommand.as, 256 IModel.as, 445 implementations, 43 interfaces, versus, 30, 45 ImplementSub.as, 32 ImplementSubChange.as, 34 IncrementCommand class, 262 IncrementCommand.as, 262 IncrementCommandWithUndo.as, 267 Indifference.as, 160 INewModel.as, 452 inheritance, 24–34 abstract classes and, 31 advantages and disadvantages, 288 class adapters and, 181 classes, writing for, 25 composition, versus, 185 multiple inheritance, 182 InkjetPrintjob.as, 76 instance names, 7 Integrity.as, 153 interfaces, 28, 67 abstract classes, versus, 46 Adapter pattern and, 177 Adapter pattern, conversions by, 188–190 complex interfaces, 47 implementations, versus, 30, 45 implementing polymorphism, 37 naming conventions, 30 purpose, 33 internal classes, 71, 74 inverse kinematics, 223 504 | Index Invoker.as, 253 InvokerKeyboard.as, 264 InvokerPanel.as, 261 invokers, 250 ITarget.as, 183 IVid.as, 47 J Jane.as, 150 Jazz.as, 36 Johnson, Ralph, xii Juggle.as, 408 Justice.as, 156 K KeyboardInputView.as, 461 Koka.as, 407 L Leaf.as, 208 legacy object, 177 LegacyCar.as, 186 ListDisplay.as, 195 ListDisplayField.as, 196 loosely coupled designs, 84, 248, 251, 430, 443 LowVolPrintCenter.as, 77 M macro commands, 255–258 client, macro command object created from, 258 command interface, 255 concrete macro command, 257 two concrete subcommands, 256 Main class, 69, 72 Main.as Command pattern example, 253 Main.as (Adapter pattern), 180, 184, 192 Main.as (Composite pattern), 210, 215, 226, 239 updated constructor in, 232 Main.as (document class), 198, 201 Main.as (Factory Method pattern), 72 Main.as (MVC pattern), 436, 462 MainDual.as, 161 maintenance, 57–60 extensiblility, adding, 59 MakeSound.as, 30 Malice.as, 157
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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
Page 474 and 475: 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 526 and 527: MapTypeController.as, 454 MapView.a
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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