By Ben Smith (auth.)
Advanced ActionScript 3 is a clean glance and new method of using invaluable, structural concepts and techniques which are regular within the box of wealthy interactive program improvement. With each one strategy damaged down into varied strategized factors, you will discover the method most fitted for you. if it is an instance you could make the most of as-is, or one you can begin with and increase extra, you may have a word list of definitions and organizational innovations at your fingertips.
Object-oriented programming (OOP) and layout styles are usually not new to the sphere, yet can frequently be ignored of their worth. they're, now and then, not just overwhelming to benefit, yet tricky to place into perform. besides the fact that, they're priceless simply because they convey a constitution that may be damaged down, rebuilt, and reused.
This version has been absolutely up-to-date to mirror sleek coding criteria and practices.
- Provides the construction blocks required for the implementation of OOP
- Addresses difficulties and issues concerning OOP
- Offers options on the best way to method and make the most of OOP
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Extra resources for Advanced ActionScript 3: Design Patterns
You use these all the time when you use the new operator. Each Class object can be referenced by the name it was given when you specified its external definition. As you saw earlier in Figure 2-3, any reference that remains within scope can be obtained. swf file. If you have a reference to the current appDom and want to retrieve a particular Class object with which to work, you can do so using the getDefinition and getDefinitionByName methods. swf file from Listing 2-3 was defined by an attached class DocumentClass, shown in Listing 2-4.
Although each iterative pass may seem to analyze the same system, your analysis is applied to a new problem domain each time you add a layer of specifics. The repetition reveals the union (overlap) of objects in the system. This repetition makes you better acquainted with the system’s requirements and objects, which lets you handle change efficiently. The beauty of layering is that each layer represents additional system behaviors you’ve added. It also magnifies your bird’s-eye view so you can zoom in on the system.
38 Chapter 2 ■ ActionScript 3: The Facts Behind the Basics Strong Typing Data typing is nothing new to the ActionScript language, but the performance gained by supplying data types is. Strong typing facilitates proper use of objects in a system by associating, or binding, the reference to an object’s intended interface. Associating a variable with a data type optimizes the bytecode and improves player performance significantly. Although performance should be reason enough to use typing data, it also provides many benefits in terms of productivity by reducing errors.