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

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Example 4-48. Deal.as 120 { 121 tracker=cars[hybrid].label; 122 switch (tracker) 123 { 124 case "Escape" : 125 carDeal = new Escape( ); 126 break; 127 128 case "Mariner" : 129 carDeal = new Mariner( ); 130 break; 131 132 case "Prius" : 133 carDeal = new Prius( ); 134 break; 135 136 case "Accord" : 137 carDeal = new Accord( ); 138 break; 139 } 140 } 141 } 142 } 143 //Select options -- wrap Concrete Component in Decorator 144 private function getOptions ( ):void 145 { 146 var tracker:String; 147 var toy:uint; 148 for (toy=0; toy
Example 4-48. Deal.as 172 } 173 } 174 } 175 Creating the document and setting the stage Once you’ve saved the Deal.as file, you’ll need to do a little work on a Flash document file. The following steps will guide you. 1. Open a new Flash document and save it as AutoDealer.fla in the same folder as the .as files. 2. In the Document class window, type in Deal, and resave the file. 3. Using Figure 4-8 as a guide, use Static text to add the header “2 Guys From Connecticut Hybrid Cars.” Beneath the header, at horizontal position 150, type in Select Car, and on the same line at horizontal position 250, type in Select Options. 4. Open the Components and Library panels and drag a copy of the radio button and the checkbox to the Library. 5. Select Insert ➝ Symbol in the menu bar, and select Button as Type. In the Name window, type in Button (which is the default name), and click the Import for <strong>ActionScript</strong> checkbox. Click OK to enter the Button Symbol editor indicated by the special four-frame Timeline. 6. In the Button Symbol editor, add a layer, and, selecting the top layer, use the Rectangle Tool to draw a rectangle with colors to suit your tastes with 8-point rounded corners located at x=0, y=0. Size it to W=43, H=13. Add keyframes to all the frames in the top layer. Select the object in the Over frame and swap (reverse) the stroke and fill colors. 7. Add keyframes to the first three frames in the lower layer. In the Up frame, using a Static text and narrow sans serif 10-point font type, type “Calculate” centered below the button. In the Over frame, do the same thing, but type in Total Cost. Leave the Down frame empty. 8. Check to make sure your Library shows the following: CheckBox, CheckBox- Skins, Component Assets, Button, RadioButton, RadioButtonSkins. If it does, you should be all set. The next step is to test the application. All the buttons and the text field are automatically placed on the stage. Figure 4-8 shows what you can expect to see if everything is working as expected. 174 | Chapter 4: Decorator 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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Page 148 and 149: PART III III.Structural Patterns Tr
Page 150 and 151: Chapter 4 CHAPTER 4 Decorator Patte
Page 152 and 153: like abstract classes, simply by no
Page 154 and 155: simple inheritance. Depending on ho
Page 156 and 157: Minimalist Abstract Decorator To ge
Page 158 and 159: eral months. Using a Decorator desi
Page 160 and 161: Example 4-5. DecConB.as package { /
Page 162 and 163: Applying a Simple Decorator Pattern
Page 164 and 165: If you want to create more concrete
Page 166 and 167: Example 4-15. Muff.as package { pub
Page 168 and 169: Figure 4-6. Paper doll with two dif
Page 170 and 171: Adding Properties and Methods Up to
Page 172 and 173: Decorating with Multiple Properties
Page 174 and 175: } override public function evil( ):
Page 176 and 177: Example 4-25. Compassion.as package
Page 178 and 179: Deadly sins Example 4-29. Rage.as p
Page 180 and 181: Example 4-33. Dogmatisms.as package
Page 182 and 183: class window in the Dual.fla Proper
Page 184 and 185: Example 4-37. Soul.as (continued) }
Page 186 and 187: Imagine that you are responsible fo
Page 188 and 189: Example 4-41. Accord.as (continued)
Page 190 and 191: Example 4-45. GPS.as package { publ
Page 192 and 193: Example 4-48. Deal.as 16 internal v
Page 196 and 197: Figure 4-8. Decorator user interfac
Page 198 and 199: Chapter 5 CHAPTER 5 Adapter Pattern
Page 200 and 201: and their functionality to figure o
Page 202 and 203: Example 5-4. Main.as (continued) }
Page 204 and 205: Example 5-5. Adaptee.as package { p
Page 206 and 207: methods and properties to accomplis
Page 208 and 209: Example 5-9. LegacyCar.as 47 } 48 4
Page 210 and 211: ignition key of the car (assume tha
Page 212 and 213: Example 5-11. CarAdapter.as (contin
Page 214 and 215: Note that the new interface turns t
Page 216 and 217: var listField = new TextField( ); l
Page 218 and 219: Example 5-14. ListDisplayField.as 3
Page 220 and 221: Example 5-15. Main.as (document cla
Page 222 and 223: Example 5-17. Main.as (document cla
Page 224 and 225: Summary The adapter pattern allows
Page 226 and 227: objects and composite objects the s
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Page 230 and 231: method by tracing sName. When opera
Page 232 and 233: oot composite 1 leaf 1 leaf 2 compo
Page 234 and 235: Executing the following statements
Page 236 and 237: Example 6-6. The safeRemove( ) meth
Page 238 and 239: leaf 2 Composite 1 leaf 2 leaf 3 Di
Page 240 and 241: Example 6-9. Playlist.as (continued
Page 242 and 243: 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
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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
Page 530:
T Tail.as, 231 Target.as, 180 Templ
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