Macromedia flash( action scripting), Slides of Information Technology

Download Macromedia flash( action scripting) and more Slides Information Technology in PDF only on Docsity!

Amitoj Duggal

 (^) Adobe Flash Professional is used to create content for the Adobe Engagement Platform (such as web applications, games and movies, and content for mobile phones and other embedded devices).

 (^) It features support for vector and raster graphics, a scripting language called Action Script and bi-directional streaming of audio and video.

 (^) Strictly speaking, Adobe Flash Professional is an integrated development environment (IDE) while Flash Player is a virtual machine used to run, or parse, the Flash files.

In order to program things the way

we want them to be

Provide dynamicity to applications

Interaction with other applications

Database connectivity

Incorporating design with code

The action window is the window

where a design specific code is written for flash animations or applications.

The code written is based on the

object its associated with namely---

1.Movie clip

2.Symbol

3.Button

4.timeline

In Flash, the events can be grouped into several categories. The two most common types of events are what we’ll call time-based and user-based. The most common time-based example

is that of the playhead entering a new frame. Each time this happens, it is an event. User-based events include mouse and keyboard activity

Trace()

the trace function is same as print function we have in other languages Its used only for debugging purposes

Syntax:

Trace (“Flash”);

Lets Move on to the flash 8

Action Panel

Working with Strings

Strings are characters or words. String values must always be enclosed in either single quotes or double quotes. Here are a few examples of strings:

“a”

‘b’

“1”

Casting Data ActionScript allows you to tell Flash to convert a value to a specific datatype by what is known as casting. When you cast a value, you use the following syntax: Datatype(value) For example, you can cast a string to a number as follows: Number(“123”)

A variable is a named container that

you can use to hold or reference some particular data.

Once you have created a variable,

you can store and retrieve data in the variable

To declare a variable using strong

typing, use the following pattern:

var variableName:Datatype;

All types of operators work with flash

also

 Arithmetic Operators

 (^) Assignment Operators

 (^) Comparison Operators

 (^) Logical Operators

 (^) String Operators

 Control structures group multiple sub statements together and control the flow of code execution.

✦ if —This statement makes the execution of the substatements conditional.

✦ for —This statement loops the substatements a specific number of times.

✦ switch —This statement selects

and executes specific substatements determined by the value of the expression you specify

USER DEFINED INBUILD Defining : function functionName():datatype { statements } Eg. function displayGreeting():Void { trace(“Hello.”); }