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

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Example 10-11. NetBtn.as (continued) } } { } upState = new BtnState(0xfab383, 0x9e0039,txt); downState = new BtnState(0xffffff,0x9e0039, txt); overState= new BtnState (0x9e0039,0xfab383,txt); hitTestState=upState; Example 10-12. BtnState.as package { //States for transition buttons import flash.display.Sprite; import flash.display.Shape; import flash.text.TextFormat; import flash.text.TextField; import flash.text.TextFieldAutoSize; class BtnState extends Sprite { public var btnLabel:TextField; public function BtnState (color:uint,color2:uint,btnLabelText:String) { btnLabel=new TextField ; btnLabel.text=btnLabelText; btnLabel.x=5; btnLabel.autoSize=TextFieldAutoSize.LEFT; var format:TextFormat=new TextFormat("Verdana"); format.size=12; btnLabel.setTextFormat (format); var btnWidth:Number=btnLabel.textWidth + 10; var bkground:Shape=new Shape; bkground.graphics.beginFill (color); bkground.graphics.lineStyle (2,color2); bkground.graphics.drawRect (0,0,btnWidth,18); addChild (bkground); addChild (btnLabel); } } } To test the application, you’ll need an FLV file named test.flv. You can convert an existing video file (e.g. avi, mov) or use any flv file on hand. Place the file in the same folder as the application. Finally, you’ll need a script to test the application, so open a new <strong>ActionScript</strong> file, enter the following listing in Example 10-13, and save it as TestVid.as: Video Player Concrete State Application | 371
Example 10-13. TestVid.as package { //Implement FMS2 App and Test State Machine #7 import flash.display.Sprite; import flash.net.NetConnection; import flash.net.NetStream; import flash.media.Video; import flash.text.TextField; import flash.text.TextFieldType; import flash.events.MouseEvent; import flash.events.NetStatusEvent; public class TestVid extends Sprite { private var nc:NetConnection=new NetConnection( ); private var ns:NetStream; private var vid:Video=new Video(320,240); private var vidTest:VideoWorks; private var playBtn:NetBtn; private var stopBtn:NetBtn; private var flv:String; private var flv_txt:TextField; private var dummy:Object; public function TestVid ( ) { nc.connect (null); ns=new NetStream(nc); addChild (vid); vid.x=(stage.stageWidth/2)-(vid.width/2); vid.y=(stage.stageHeight/2)-(vid.height/2); //Instantiate State Machine vidTest=new VideoWorks( ); //Play and Stop Buttons playBtn=new NetBtn("Play"); addChild (playBtn); playBtn.x=(stage.stageWidth/2)-50; playBtn.y=350; stopBtn=new NetBtn("Stop"); addChild (stopBtn); stopBtn.x=(stage.stageWidth/2)+50; stopBtn.y=350; //Add Event Listeners playBtn.addEventListener (MouseEvent.CLICK,doPlay); stopBtn.addEventListener (MouseEvent.CLICK,doStop); //Add the text field flv_txt= new TextField( ); flv_txt.border=true; 372 | Chapter 10: State Pattern
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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
Page 341 and 342: Example 8-24. ConcreteObserver.as p
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Page 345 and 346: Example 8-26. QuarterBar.as (contin
Page 347 and 348: Example 8-27. QuarterGraph.as (cont
Page 349 and 350: Example 8-28. DataDesign.as (contin
Page 351 and 352: Summary The real test for a design
Page 353 and 354: to inspect. So, you’re going to n
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Page 357 and 358: Further, discussing favoring compos
Page 359 and 360: Figure 9-3. Hollywood principle Min
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Page 363 and 364: Example 9-4. ShedMaker.as package {
Page 365 and 366: Both instances employ the templateM
Page 367 and 368: Not-So-Concrete Concrete Classes Th
Page 369 and 370: Example 9-11. PlayVideo.as (continu
Page 371 and 372: Example 9-13. PlayMedia .as (contin
Page 373 and 374: When to Hook? The hook’s useful w
Page 375 and 376: Example 9-15. FlightPlan.as (contin
Page 377 and 378: Open a new Flash document, and type
Page 379 and 380: One application where the state pat
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Page 383 and 384: For example, with a two-state machi
Page 385 and 386: Example 10-2. VideoWorks.as (contin
Page 387 and 388: To complete the state machine, we n
Page 389 and 390: Example 10-7. State.as package { //
Page 391: Example 10-10. VideoWorks.as (conti
Page 395 and 396: Example 10-13. TestVid.as (continue
Page 397 and 398: Example 10-15. StopState.as (contin
Page 399 and 400: Example 10-17. PauseState.as 22 pub
Page 401 and 402: Example 10-19. TestPause.as (contin
Page 403 and 404: Figure 10-6 shows what your video p
Page 405 and 406: Figure 10-7. Statechart with five s
Page 407 and 408: Example 10-22. PlayState.as 1 packa
Page 409 and 410: Example 10-24. RecordState.as 1 pac
Page 411 and 412: Example 10-26. VideoWorks.as (conti
Page 413 and 414: Example 10-27. TestFMS.as (continue
Page 419 and 420: Chapter CHAPTER 11 11 Strategy Patt
Page 421 and 422: say that the Context class (aggrega
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Page 425 and 426: Example 11-3. ConcreteStrategy.as p
Page 427 and 428: Adding More Concrete Strategies and
Page 429 and 430: Example 11-9. Tricks.as (continued)
Page 431 and 432: Even though we’ve discussed some
Page 433 and 434: Example 11-18. Bubbles.as package {
Page 435 and 436: Simply by adding setters to the con
Page 437 and 438: Contexts for String Strategies You
Page 439 and 440: Example 11-24. StringWork.as packag
Page 441 and 442: 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
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Example 12-21. RBView.as package {
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add map type select radio button gr
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Example 12-23. CarModel.as (continu
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Example 12-25. RHController.as (con
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Example 12-28. Main.as (document cl
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Example 12-30. GPSView.as package {
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Example 12-32. ChaseController.as (
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Chapter 13 CHAPTER 13 Symmetric Pro
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• Indicate that a remote player h
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Even though both of the solutions a
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Referee 1 Player1 Proxy2 Internet S
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With a single template method, and
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developed with an eye to the order
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Boolean variables to false. (The fa
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Example 13-3. RPS.as (continued) }
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Example 13-4. proxygame.asc (contin
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Example 13-5. SymPlayer1.as package
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Example 13-5. SymPlayer1.as (contin
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Example 13-5. SymPlayer1.as (contin
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In addition to using the Referee to
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Example 13-6. DynamicText.as (conti
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3. Click the Text layer to select i
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A abstract classes, 28, 31, 68, 130
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increment and decrement commands, 2
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E ECOOP, 470 EmailCheck.as, 418 enc
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MapTypeController.as, 454 MapView.a
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Q QuadPets.as, 25 R Radio.as, 273 R
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T Tail.as, 231 Target.as, 180 Templ
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