codes -

Random Sort, No repetition

Sat, 02 Aug 2008 06:25:20 +0100

A question on Flashkit on how to randomly sort a bank of items


// build an array with 12 times the values 1-8
var arrVal:Array = new Array()
for (i = 1; i <= 8; i++) {
    for (j = 0; j < 12; j++) {
        arrVal.push( i)
    }
}

// sort the array in random order, no repetition
arrRnd = randomSort(arrVal) // use the function given in the previous post

/** 
  randomSort, no repetition 
*/ 
function randomSort(itms) { 
    var oItem:Object = new Object() 
    var lastPos:Number = itms.length



Decimal Rounding
Sat, 02 Aug 2008 05:37:01 +0100
To round a number at a given decimal:

trace(roundDecimal(1.657777, 4))

function roundDecimal(val, qty) {
    f = Math.pow(10, qty)
    return Math.round(val*f)/f
}


AIR coming to Linux
Tue, 08 Apr 2008 10:56:45 +0100
"Adobe announced today that the pre-release alpha version of AIR for Linux is available immediately on the Adobe Labs site. Adobe shipped the 1.0 version of AIR for Windows and Mac last month but was forced to delay the Linux release."
Read the article at readwriteweb.com


HyperNext Creator now Freeware
Sun, 06 Apr 2008 07:57:17 +0100
HyperNext Creator is available as a freeware from

Tigabyte.com
OS Classic, OSX and Windows version are available.
HyperNext is a development environment for persons new to programming. It uses a language from the HyperCard/xTalk family.


Matching Learning Activity, new version uploaded in the gallery
Sun, 06 Apr 2008 01:22:23 +0100
A new version of the matching learning activity has been uploaded in the Flex Gallery, under courseware 

Demo and source code available. 
Changes: 

Drop accepted when the mouse is anywhere on the target picture.
Drop not accepted for an item that has already been attempted.
Score updated after each attempt (number correct and number attempted).
Code slightly reorganized to avoid the split into TargetList and TargetItem. 


Adobe Flex Intro PPT
Wed, 12 Mar 2008 19:35:45 +0000
Adobe Flex Intro PPT posted @ flexed.wordpress.com
Copied from blog entry "[...] presentation for The Chennai Cold Fusion User Group (CCFUG Homepage). Am posting the ppt here. The presentation covered the basics - intro to RIAs, intro to Adobe Flex, a couple of examples and a little bit about Adobe AIR. Check it out… if you have nothing else to do  … The audience were cold fusion developers who were new to Adobe Flex and Adobe AIR. I touched the basics and then walked them through some code examples of Flex and Air."


Multiuser applications in ActionScript with Unity
Mon, 10 Mar 2008 10:02:48 +0000
lecture notes Introduction to Unity @ moock.org
Unity is  a multiuser application development kit.


MVC in actionscript
Mon, 10 Mar 2008 09:57:54 +0000
Lecture notes on MVC (in AS) @ moock.org
mvc separates the code required to manage a user interface into three distinct classes:

model: stores the data and application logic for the interface
view: renders the interface (usually to the screen)
controller: responds to user input by modifying the model



Event Model
Mon, 10 Mar 2008 09:48:55 +0000
Source: Intro To AS3 @ moock.org

Registration

general code:
someObj.addEventListener(EventName, listenerFunction)
public function listenerFunction (e:EventType):void {
  trace("event fired");
}

example code:

var s:Sprite = new Sprite();
s.addChild(new Rectangle(25, 25));
s.addEventListener(MouseEvent.MOUSE_DOWN, mouseDownListener);
public function mouseDownListener (e:MouseEvent):void {
  trace("mouse down listener triggered);
  // Method bound to current object (delegation built in)
  trace("current object is: " + this);


Vector drawing
Mon, 10 Mar 2008 09:45:35 +0000


var rect:Shape = new Shape();

rect.graphics.lineStyle(1);

rect.graphics.beginFill(0x0000FF, 1);

rect.graphics.drawRect(0, 0, 75, 50);


For the graphic to appear on stage, don't forget to add:



addChild(rect);


At the top of the script, make sure you import the required libraries



import flash.display.Shape;




Display containers and children
Mon, 10 Mar 2008 09:44:17 +0000


DisplayObjectContainer.addChild()

DisplayObjectContainer.removeChild()

DisplayObjectContainer.addChildAt()

DisplayObjectContainer.removeChildAt()


Note that depths auto-collapse when a child is removed


Accessing named stage instances from class script
Mon, 10 Mar 2008 09:32:53 +0000
Source : ActionScript And FlashCS3 @ moock.org

instances with names can be accessed via getChildByName()
name the star instances star1, star2, star3
add the following code to GreetingApp constructor:



getChildByName("star1").width = 600;




Frame scripts are instance methods
Mon, 10 Mar 2008 09:28:20 +0000
Source : ActionScript And FlashCS3 @ moock.org

each main timeline frame script creates a document class instance method named frame1, frame2, frame3 (starts at 1 not 0)
player uses addFrameScript() to register frame methods to execute
undocumented, but developers can also use addFrameScript()



// Invoke doSomething when playhead reaches frame 1

// (Replaces any existing script on frame 1)

addFrameScript(0, doSomething)

// Remove frame 1's script

addFrameScript(0, null)




Working with Selection
Mon, 03 Mar 2008 09:29:20 +0000
  this.createTextField("tOutput", this.getNextHighestDepth(), 100, 100, 200, 200);
  tOutput.selectable = false
  this.onMouseUp = function():Void {
    Selection.setFocus("tOutput")
    Selection.setSelection(40, 43) 
  }

getCaretIndex(), txtField.replaceSel(), Selection.getFocus()


Events for text Fields
Mon, 03 Mar 2008 09:19:40 +0000
this.createTextField("tComments", 1, 25, 25, 100, 20);
tComments.onChanged = function() { 
   trace("Text within comments field = " + tComments.text);
};
tComments.onSetFocus = function(oPrevFocus:Ojbect):Void {
  trace(this._name + " is now focused.");
  if(oPrevFocus._name != null) {
    trace(oPrevFocus._name + " no longer has focus.");   
  }
}
tComments.onKillFocus = function(oPrevFocus:Ojbect):Void {
  trace(this._name + " is no longer focused.");
   trace(oPrevFocus._name + " is now focused.");   
}

Note that onChanged() does not detect changes to a a text field made via ActionScript.