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INDEX - how-to-ish stuff

Add child
Buttons
Create Instance
Mouse Events
Reposition 1
Reposition 2
Timer
trace

Basics / Script bits

Create Instance, add instance, reposition, trace.

/* ActionScript
   to demo creating instances
*/



// create instances of BlueSquare

var myBlueSquare = new BlueSquare();

var myOtherBlueSquare = new BlueSquare();



trace(myBlueSquare);



addChild(myBlueSquare);

addChild(myOtherBlueSquare);



//reposition instance named myOtherBlueSquare

myOtherBlueSquare.x = 300;

myOtherBlueSquare.y = 150;

In the sample, above, "BlueSquare" is the name of the object

Buttons!

Button targets frame label


stop();



var blueButton = new pushbuttonblue();



addChild(blueButton);



blueButton.x = 200;

blueButton.y = 200;



blueButton.addEventListener(MouseEvent.MOUSE_DOWN,frFive);



function frFive(e:MouseEvent):void

{

	gotoAndStop("five");

	blueButton.removeEventListener(MouseEvent.MOUSE_DOWN,frFive);

	removeChild(blueButton);

}

"five" = the frame label.
In this example, the button is removed from frame 5

Timer


/*first parameter is miliseconds the second is the amount of times the function will run*/


var myTimer = new Timer(1000,3);

myTimer.addEventListener(TimerEvent.TIMER, tickTock);

myTimer.addEventListener(TimerEvent.TIMER_COMPLETE, timerDone);

myTimer.start();



function tickTock(e:TimerEvent):void {

	trace("Tick");

}



function timerDone(e:TimerEvent):void {

	trace("DONE");

}

Timer: Clock

SEE SAMPLE

Misc

Void mean undefined

Functions

Functions are called Methods

Syntax


runMe();



function runMe():void {

	trace("This is the runMe function");

}



runMe();

A simple sample


//calls function "createGreeting" with "You" as variable 

trace( createGreeting("You") );



/*the :String defines what type of thing the return statement returns
the "return" exits out of the function*/

function createGreeting(firstName:String):String {

	return ("Welcome " + firstName);

}

As stated in the notes (code above), return exits the function

Simple Samples

Reposition


//add instance of object


var square = new BrownSquare();

trace(square);



//position instance

square.x = 50;

square.y = 50;

addChild(square);



//reposition instance

function reposition(newX:Number,myName:String):void {

	square.x = newX;

	trace("Hello " + myName);

}

reposition(100,"Me");

Math

+    Addition
-    Subtraction
*    Multiplication
/    Division
++    Increment
--    Decrement


trace (2+3);

trace (3-2);

trace (2*3);

trace (5/2);

//"%" shows the remainder of 5/2

trace (5%2);



// myValue is 2

var myValue:Number = 2;

//a new myValue = 2 + 2

myValue = myValue + 2;

trace(myValue);



//does the same thing as the above

var myOtherValue:Number = 2;

myOtherValue += 2;

trace(myOtherValue);



var newNumber:Number = 5;

trace(newNumber);

newNumber++;

trace(newNumber);

newNumber--;

trace(newNumber);

Events

Events have 3 phases: Capture, Target, and Bubbbling.

Capture: Every event starts with the parent (the stage.)
Target: Just like it sounds - the target - the thing that the event is targeted to (a button perhaps)
Bubbling: essentially, the stuff after the event back to the stage

Mouse Events


// create instances of BlueSquare

var myBlueSquare = new BlueSquare();



trace(myBlueSquare);



addChild(myBlueSquare);



myBlueSquare.addEventListener(MouseEvent.MOUSE_DOWN,onClick);



function onClick(e:MouseEvent):void {

	trace("The first blue square was clicked.");

}

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