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how to load a bitmap and cut into pieces using ationscript 3.0

2012-01-24T10:48:00.000-08:00

Loading a Bitmap

A Loader object is a special version of a Sprite that pulls its data from an external
source. You need to pair it up with a URLRequest, which handles the network file access.
Here is a simple class that loads a single JPG file and places it on the screen. After creating
a new Loader and a new URLRequest, we pair them with the load command. The
entire process takes only three lines of code. Then, we use addChild to add the Loader
object to the stage, just like a normal display object like a Sprite:

package {
import flash.display.*;
import flash.net.URLRequest;
public class BitmapExample extends MovieClip {
public function BitmapExample() {
var loader:Loader = new Loader();
var request:URLRequest = new URLRequest("myimage.jpg");
loader.load(request);
addChild(loader);
}
}
}

It is positioned in the upper-left corner.
Because the Loader object acts like a normal display object, we can also set its x and y
position to center it on the screen or place it anywhere we want.

This can prove useful for loading introductory or instruction graphics in a game. For
instance, your company logo can appear on the introduction screen using this simple
set of commands. Instead of embedding your logo in each Flash game, you can have a
single logo.png file and use a Loader and URLRequest to bring it in and display it.
Then, one change to logo.png and all your games are using the new logo.

Breaking a Bitmap into Pieces

Loading a single bitmap and displaying it is useful, but we need to dig into the data and
extract puzzle pieces from the image to build the games in the rest of this chapter.
The first change we need to make to the simple example from before is to recognize
when the bitmap is done loading and start processing it. This can be done with an
Event.COMPLETE listener. We add that to the Loader object, and then we can put all our
manipulation code into the loadingDone function that it calls.

Here is the start of the new class. We need the flash.geom class later. I’ve also put the
loading code into its own function, called loadBitmap, so it is easy to transport to the
games later in this chapter:

package {
import flash.display.*;
import flash.events.*;
import flash.net.URLRequest;
import flash.geom.*;
public class BitmapExample extends MovieClip {
public function BitmapExample() {
loadBitmap("testimage.jpg");
}
// get the bitmap from an external source
public function loadBitmap(bitmapFile:String) {
var loader:Loader = new Loader();
loader.contentLoaderInfo.addEventListener(
Event.COMPLETE, loadingDone);
var request:URLRequest = new URLRequest(bitmapFile);
loader.load(request);
}

When the image is completely loaded, the loadingDone function is called. The first
thing it does is to create a new Bitmap object. It takes the data for this from
event.target.loader.content (in other words, the content property of the original
Loader object):

private function loadingDone(event:Event):void {
// get loaded data
var image:Bitmap = Bitmap(event.target.loader.content);

piece:
// loop through all pieces
for(var x:uint=0;x<6;x++) {
for (var y:uint=0;y<4;y++) {

Creating a puzzle piece is done by first making a new Bitmap object. We specify the
width and height to create one. Then, we use copyPixels to copy a section of the original
image into the bitmapData property of the puzzle piece.
The copyPixels command takes three basic parameters: the image to copy from, the
Rectangle specifying the part of the image to get, and the Point that defines where the
piece of the image goes in the new bitmap:

// create new puzzle piece bitmap
var newPuzzlePieceBitmap:Bitmap =
new Bitmap(new BitmapData(pieceWidth,
pieceHeight));
newPuzzlePieceBitmap.bitmapData.copyPixels(
image.bitmapData,new Rectangle(x*pieceWidth,
y*pieceHeight,pieceWidth,
pieceHeight),new Point(0,0));

A bitmap by itself isn’t our end goal. We want to have a Sprite to show on the screen.
So, we create a new one, and then add the bitmap to it. Then, we add the Sprite to
the stage.

// create new sprite and add bitmap data to it

var newPuzzlePiece:Sprite = new Sprite();
newPuzzlePiece.addChild(newPuzzlePieceBitmap);
// add to stage
addChild(newPuzzlePiece);

Finally, we can set the location of the sprites. We want to place them on the screen
according to their column and row, plus about five pixels to create some blank spacing
between the pieces. We also offset the horizontal and vertical positions of all pieces by
20 pixels.

// set location
newPuzzlePiece.x = x*(pieceWidth+5)+20;
newPuzzlePiece.y = y*(pieceHeight+5)+20;
}
}
}

Linking and Removing Event Listener easy video tutorial

2012-01-24T10:33:00.000-08:00

These videos are aimed at complete newcomers to programming and are primarily made for pre-university students.

You are expected to have an understanding of Flash drawing/animation before completing these tutorials.

Embedding or loading assets in flash

2012-01-24T10:27:00.000-08:00

The best way to get at a bitmap is to upload the bitmap in your SWF, which is handled
in two different techniques, based on your compiler. First, if you are using Fold Designer, the
mxmlc compiler through the control range, or the Fold compiler as an option in the Flash
IDE, you can use the upload metatag to upload your bitmap resource, as was mentioned in the
“Introducing Bitmap” area previously this part.

If you are using the Present IDE, you can transfer the bitmap into your collection and move it for
ActionScript (in this situation, perhaps as the category LogoImage). As these two techniques are not
consistent for all conditions, we will not use them in the illustrations in this publication. Please
see the Fold or Present certification for further details on these techniques.

No issue your strategy of option for embedding, you can instantiate the bitmap using the
class constructor and thrown it as a Bitmap. Since Bitmap is a DisplayObject, you can then add
it immediately to the display record for rendering:

var logo:Bitmap=new LogoImage as Bitmap;
addChild(logo);

The strategy we will use to accessibility bitmaps in our illustrations, and the one you saw in the
previous part, is to use the Loading machine category to fill in a bitmap at playback. This performs the
same no issue your compiler or progression atmosphere. Generally, Loading machine, which is a
DisplayObject itself, is a wrapper that you can add to the present record and location, range,
rotate, set awareness, and so on, while it a lot displayable information, like a SWF or bitmap graphic,
asynchronously behind the curtain.

var loader:Loader=new Loader();
loader.contentLoaderInfo.addEventListener(Event.COMPLETE,imageloaded);
loader.load(new URLRequest(imagePath));

However, we will not be including the Launching machine to the present record in our illustrations, although you
certainly could (if all you are doing is loading and showing, there is no purpose why not).
We will need use of the hidden bitmap if you want to accessibility its bitmap information, so it is
best to pick up this from the Launching machine example once the bitmap completely a lot and add this directly
to the present list:

private function imageloaded(evt:Event)
{
var loaderinfo:LoaderInfo=evt.target as LoaderInfo;
var bitmap:Bitmap=LoaderInfo.content as Bitmap;
bitmap.x=100;
bitmap.y=100;
addChild(bitmap);
}

Move a Sprite at a certain speed in a specific angular direction

2011-10-21T08:55:00.000-07:00

You can use some basic trigonometric functions to convert this angle and speed to component x and y velocities. First, you need to make sure the angle is in radians. If the angle is in degrees, convert it by using the following formula:

radians = degrees * Math.PI / 180;

If you ever need to convert the opposite way, use:

degrees = radians * 180 / Math.PI;

Once you have the angle in radians, use the Math.sin and Math.cos functions, along with the speed, to find the x and y velocities, using the following formulas:

vx = Math.cos(angle) * speed; vy = Math.sin(angle) * speed;

Here is an example using 135 degrees and a speed of 4 pixels per frame:

package {
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.events.TimerEvent;
    import flash.utils.Timer;
    
    public class AngularVelocity extends Sprite {
        private var _sprite:Sprite;
        private var _angle:Number = 135;
        private var _speed:Number = 4;
        private var _timer:Timer;
        
        public function AngularVelocity (  ) {
            _sprite = new Sprite(  );
            _sprite.graphics.beginFill(0x0000ff, 100);
            _sprite.graphics.drawCircle(0, 0, 25);
            _sprite.graphics.endFill(  );
            _sprite.x = 200;
            _sprite.y = 100;
            addChild(_sprite);
            _timer = new Timer(30);
            _timer.addEventListener("timer", onTimer);
            _timer.start(  );
        }
        
        public function onTimer(event:TimerEvent):void {
            var radians:Number = _angle * Math.PI / 180;
            var vx:Number = Math.cos(radians) * _speed;
            var vy:Number = Math.sin(radians) * _speed;
            _sprite.x += vx;
            _sprite.y += vy;
        }
    }    
}

access your web cam and take a snapshot using flash actionscript 3.0

2011-10-09T11:19:00.000-07:00

In this post i will help you how to access your web cam and take a snap shot and save it as in JPEG format.

Create a new flash file with name WebCam.
Create a button with instance name "_capt " in the stage
Then create a new actionscript 3 file with name "vido". copy and paste the following code into that and save it..
package
{

    import com.adobe.images.JPGEncoder;
       import flash.display.Bitmap;
       import flash.display.BitmapData;
       import flash.media.Video;
       import flash.media.Camera;
       import flash.display.Sprite;
       import flash.events.*;
       import flash.display.MovieClip;
       import flash.net.FileReference;
       import flash.utils.ByteArray;
       import flash.geom.Matrix;


       [SWF(width=640,height=480,frameRate=24)]
       public class vido extends Sprite

       {
           public var _camera:Camera;
           public var _video:Video;
           public var _capt:MovieClip;
           public var _snap:Bitmap;
           public var _snapContent:BitmapData;
           public var _fileRefer:FileReference;
           public var bytes:ByteArray;

               public function vido()
               {
                   _camera=Camera.getCamera();
                   _video=new Video(320,240);
                   _video.attachCamera(_camera);
                   addChild(_video);
                   _capt.addEventListener(MouseEvent.CLICK,takeCapt);


               }
               public function takeCapt(evt:MouseEvent)
               {

                   var _snapContent:BitmapData=new BitmapData(320,240, false, 0);
                   BitmapData(_snapContent.draw(_video));
                   var _snap:Bitmap=new Bitmap();
                   _snap.bitmapData=_snapContent;
                   addChild(_snap);
                   _snap.x = 304;
                   var jpgEncode:JPGEncoder = new JPGEncoder();
                   var bytes:ByteArray = jpgEncode.encode(_snapContent);
                   var _fileRefer=new FileReference();
                   _fileRefer.save(bytes, "image.jpeg");

               }
       }


}

5. You can download the JPEG Encoder from here
6. Goto the webcam fla and give the class name =vido.
7.Run the flash file and take the snapshot and save it as jpeg.

change the case of a string or perform a case-insensitive comparison in action script

2011-10-09T10:59:00.000-07:00

In this post i will help you how to change a string to uppercase,to lower case and also capitalize a first letter of a words.
The "toUpperCase( )" and"toLowerCase( )" methods return new strings in which all the characters are uppercase or lowercase, respectively, without modifying the original string.

you can use toLowerCase( ) or toUpperCase( ) to perform case-insensitive searches within strings

// Displays: flash develop?
trace( ex.toLowerCase( ) );

// Displays: FLASH DEVELOP?
trace( ex.toUpperCase( ) );

// The original string value is unchanged: Flash designer?
trace( example );
//you want to change original string, reassign the return value to it, as follows:

var example:String = example.toLowerCase( );

The following will help you to change the any word for example "DeSigner" into "Designer" to capitalize the first letter of the word.The following is the code in the "main" class

public static function initialcap( theword:String ):String {
return theword.charAt( 0 ).toUpperCase( ) + theword.substr( 1 ).toLowerCase( );
}

//The following is an example usage of the method:

var example:String = "DeSigner";
trace( StringUtilities.toInitialCap( example ) ); // Displays: Designer

The "initialcap( )" method converts a string to so-called title case (initial letters capitalized).
The following is the definition of the method:

public static function titleCase( originalword:String ):String
{
var words:Array = originalword.split( " " );
for (var i:int = 0; i < words.length; i++)
{
words[i] = initialcap( words[i] );
} return ( words.join( " " ) );
}
//And the following is a sample usage of the method:
var examp:String = " flash developer";
trace( main.titleCase( examp ) );

// Displays: Flash Developer

carousel (3d reflected Gallery) papervision3d and As3 tutorials

2011-04-09T11:24:00.000-07:00

Click on the above image you can get carousel (3d reflected Gallery) created using actionscript 3.0 and Papervision3d

You want to store information in memmory using flash sharedObject

2010-12-15T06:23:00.000-08:00

Local shared Objecct are to Flash what cookies are to web browsers but more so. some developers because they allow you to store large amounts of data and store and retrieve.This is mainly using for saving "username" and "Passwords".

var example:SharedObject = SharedObject.getLocal( "example" );

The static getLocal( )in shared object are both created and opened for reading.
You want to add data to a SharedObject use the following code.

// Store a username value to the example shared object.
example.data.username = "myname";

You can store several datatypes to the shared object's data property, as follows.

example.data.exampleArray = new Array( "a", "b", "c" );
example.data.exampleDate = new Date();
example.data.exampleObject = { key1: "example", key2: -12, key3: null };

You want to save data in a Shared Object to the client computer.

var flushResult:String = example.flush( );

You want to load and playback progressive download Flash video.

2010-12-13T23:22:00.000-08:00

The following code constructs a NetConnection object and initializes it for use with progressive download video.This code comes under the flash.net.Netconnection.

var videoConnection:NetConnection = new NetConnection( );
videoConnection.connect(null);

This code constructs a NetStream object

var videoStream:NetStream = new NetStream(videoConnection);

This code constructs a new Video object and then adds it to the display list:

var video:Video = new Video( );
addChild(video);

You can associate a NetStream object with a Video object by using the Video object's attachNetStream( ) method, passing a reference to the NetStream object as a parameter to the method:

video.attachNetStream(videoStream);

The NetStream class defines a play( ) method that loads and starts the Flash video playback. The parameter can be a relative or absolute URL.

videoStream.play("example.flv");
or
videoStream.play("http://www.mysite.com/example.flv");

The full code is :

var videoConnection:NetConnection = new NetConnection( );
videoConnection.connect(null);
var videoStream:NetStream = new NetStream(videoConnection);
var video:Video = new Video( );
addChild(video);
video.attachNetStream(videoStream);
videoStream.play("example.flv");

Flash Action Script eBook free download links

2010-12-09T01:29:00.000-08:00

1.Animation with Scripting for Adobe Flash Professional CS5 Studio Techniques

Book Description

The definitive guide to creating animation for the web and mobile devices with top animation designer Chris Georgenes and designer/developer Justin Putney. They reveal how to create and successfully animate characters in Adobe Flash Professional CS5 and how to push the limits of timeline animation with stunning visual effects using ActionScript® 3.0.

Download:

http://hotfile.com/dl/77854209/0f71a71/joinebook.com_Adobe.Press.Animation.with.Scripting.for.Adobe.Flash.Professional.CS5.Sep.2010.rar.html

Mirror:

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Pass (If need) : joinebook.com

2. ActionScript 3.0 Bible

Book Description

If you want to build interactive applications on the desktop, in the browser, or on mobile devices, this new edition of the ActionScript 3.0 Bible is all you need. If you’re a beginner, it guides you through the whole ecosystem of the Flash Platform, ActionScript 3.0 language and syntax, object oriented programming, and even error handling techniques and debugging tips. For intermediate programmers, the Bible is packed with detail on every part of the expansive Flash Player 10.1 API. For experienced programmers, it includes interactive examples with real-world applications, a UML table of contents for finding the right chapter immediately, and comprehensive coverage of the very latest features including multitouch, Pixel Bender, and more.

Download:

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Mirror:

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3.ActionScript 3.0 for Adobe Flash Professional CS5 Classroom in a Book

Book Description

This project-based guide from Adobe will teach readers all they need to know to create engaging interactive content with ActionScript 3.0 for Flash Professional CS5. Using step-by-step instructions with projects that build on the knowledge acquired in each lesson, readers will learn the fundamentals of adding interactivity to Flash files using ActionScript, starting with using prewritten Code Snippets, but progressing to customizing and writing their own ActionScript code.

Download:

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4. Learning ActionScript 3.0, 2nd Edition

Book Description

If you’re new to ActionScript 3.0, or want to enhance your skill set, this bestselling book is the ideal guide. Designers, developers, and programmers alike will find Learning ActionScript 3.0 invaluable for navigating ActionScript 3.0′s learning curve. You’ll learn the language by getting a clear look at essential topics such as logic, event handling, displaying content, classes, and much more.

Download:

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Mirror:

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Basic Event Listeners and Hadlers (AS3)

2010-12-07T01:17:00.000-08:00

When you run a flash movie every time the mouse is clicked, it dispatches or broadcasts an event.

For example the below image shows an instance of simple button.This button has also been given the instance name of button1 in the Property inspector.

If you select frame 1 of the Actions layer and open the Actions panel, you will notice the following code, which will be responsible for detecting and responding to the CLICK event:

//Event Listerner
button1.addEventListener(MouseEvent.CLICK,Clicked)
//Event Handler
function Clicked(Evt:MouseEvent)
{
trace("Button1 Clicked");
}

The first two lines of code demonstrate what is needed for the invocation of the event listener.The second parameter in the addEventListener() method is the name of a function that
will execute when the event is detected, in this case Clicked().

how to play a internal sound file in action script 3

2010-12-06T01:40:00.000-08:00

1. First create a flash file named Mysound.fla
2. Impor sound into library. File -Import-Import to Library

4. Select the file you want to play. the selected file go to the Library window.
5.Then right click the sound file you want to play you can see the "Linkage ". Select the Linkage a window will open.

6.Give the class name to "mysound".
7. Tick the Export for Action Script then Click Ok button.

7.The flash give a warning window. It will create a class for sound file. Then clik ok.

8.Click the top frame. and Press F9 for the action script window.

9. Then type the following code.

var _mysound:mysound=new mysound();
var _channel:SoundChannel=new SoundChannel();
_channel=_mysound.play();

10.Then press the " Ctrl+Enter".The sound file will play.

How to load an external image using Action Script 3.0

2010-12-02T05:51:00.000-08:00

This is tutorial will help you to how to load an external Image usign action script 3.
1. First create a flash document and save Sample.fla.
2. Go to the first frame..then type the following code

var img_load:Loader = new Loader();
img_load.load(new URLRequest("myPhoto.jpg"));
addChild(img_load);

3.The "myPhoto" is a image stored where you are saving your flash file.
4.Press "Ctrl+Enter" See the result.

I think this will help you..