Is there a way to reference a function via a variable? In other words, instead of saying something like:
var theVar = someString + 'function';
if (theVar == 'functionName') functionName ();
to access it directly:
(someString + 'function') ();
using some kind of bracket notation?
i have a function that read a variable from a text file, yet i can only read the variable from within the function. How could i create a global variable or such that i can then read from outside of the function.
Code:
var Make:LoadVars = new LoadVars();
Make.onLoad = function() {
VARIABLE = Make.textVariable;
[Code].....
I'm wondering how I can create a reference to a function/variable by using strings. Sorry if I'm not explaining the problem well, but let me show you what I mean in an example:You can create a reference to a class using strings by using the getDefinitionByName as follows:var classRef:Class = getDefinitionByName("myClass") as Class;var myClass1:classRef = new classRef();Similarly, how do you refer to functions and variables? The reason why I want to know is because I'm trying to implement a function which takes in the event handler name as the parameter, and what the function essentially does is that it adds an event listener with the associated handler (based on the parameter) to an object, something like this:
public function addListener(handler:String):void {
mc.addEventListener(Event.ENTER_FRAME, "on" + handler);
}
[code].....
I wonder what the most common reasons for memory leaks in AS3 are.First thing what I am not sure about is: is it better to have a variable reference inside a function or outside it. Will the variable be null-d automaticly inside a function or when do I have to null it and when not?I have massive problems with my game with memory leaks. I noticed I reference some of the clips of the timeline even inside my debugging clip to display propertys and this was causing collecting huge amount of memory.But even before I go into the game with bigger objects the System.memory is slowly growing and growing.I just have a socket connection and some interval loops and enter_frame events.
View 5 RepliesI'm trying to reference a dynamic variable for PayPal but can't seem to find the right function for it. Here's an example:
Code:
_global.paypalObj = new Object();
paypalObj.item_name_1 = 'Book';
[code]....
How do I reference the variable pointed to by the variable text but pointed to by more than one function?Say I have:
engine_level = 5;
tank_level = 3;
v_name = 'engine';
[code].....
How do I reference the variable pointed to by the variable text?
Say I have:
engine_level = 5;
v_name = 'engine';
pb_name = v_name + '_p_button'; // so pb_name = 'engine_p_button';
level = v_name + '_level'; // so level = 'engine_level';
[Code]......
I have a public variable and I am trying to set it, then read it from a different function:
public var str:String;
public function DailyVerse()
{
function create() {
[Code]....
My trace results says null. Why does it not give me "hello"?
I want to be able to reference the text of a text box within an MCThe MC is called "box1", the text field is called "field1"...I have many MCs (all with field1 in them)... box1, box2, box3 etc etcObviously I can set the text to being something by saying...box1.field1.text = "set_this_text"However, I'm using a variable to come up with the "box1" bit. (Using an array and a loop to figure out which box I want to update based on where the user clicked). So, let's say I have a variable... and I want to say..boxClickedon = box1 //will be defined by userSo I don't know in advance about box1... I can only access it through "boxClickedin" variable, but
boxClickedin.field1.text = "set_this_text"
or
[boxClickedin].field1.text = "set_this_text"
[code]....
Using AS2. I have a variable defined:
activenav = "services";
I then want to reference the variable in a MC string. I've tried many variations of this:
_root.my[activenav]Clip.gotoAndPlay("Out");
Essentially, I want Flash to see this as:
_root.myservicesClip.gotoAndPlay("Out");
Getting syntax error.
The scene is a number of movie clips, all already added to the stage (i.e. not dynamically) and when one is clicked, I need to call a property of that clip. [code]...
View 3 RepliesHow do you use a variable value as a reference to aMovieClip?I'd like to do this:
A2.visible = false;
myVar = A2;
myVar.visible = true;
[code]......
I am trying to write an attachMovie statement with a variable feeding the ID parameter.[code]...
View 1 RepliesI want to loop through an array and use the array value to reference a variable. The Setup:(For illustration only. Not actual script)
[Code]...
Can you have "ByRef" arguments in AS3 functions?
Primitive types in AS3 pass by value instead of reference. Is there a way to override that behavior and pass by reference for certain variables? [code]...
Is it possible to reference an object using a variable value?
For example, I have a function that is supposed to hide an image and add that image to an inventory list when the item is clicked.
All the image info is stored in an object (name, imgSource, visible, x, y);
I was thinking I could do something like this:
<fx:Script>
<![CDATA[
public var item:Object = new Object();
[Code].....
I want "item" to stand for knife so that I could change knife.visible, knife.xPos, ect.
Code:
public function Text1Down(e: MouseEvent): void{
var textArea:Label=Label(e.currentTarget.id);
.......
}
I get this error:
Code:
TypeError: Error #1034: Type Coercion failed: cannot convert "text1Area" to mx.controls.Label.
I know that e.currentTarget.id is of type Label. All I want is to make a reference variable so I don't have to keep typing long names.
I'm writing a function which can take the names of different variables and use them to do some calculations. Long story short, I want to be able to call the function like this:
It probably seems like a really roundabout way to pass the variable through its name rather than just passing the variable itself. This is related to me using XML to get the variable names, so they come in as strings. Just bear with me here.
Inside the function, I want to be able to do something like this:
which should then trace the variable's value. Unfortunately, I just get an 'undefined'. How do I use 'this[]' to get the value of the variable from a string corresponding to the variable's name?
I'm not entirely sure that I've even asked the question correctly in the title but hopefully) this description will make it a little more clear.
Code:
private var mySpriteA:Sprite;
private var mySpriteB:Sprite;
[code]......
function foo(bar:Number){
bar = 5;
}
simple example. How do I pass bar by reference to change it's value in the function.
well at least in C++ it's called passing a variable by reference.
Is there, uh, a way to use the value of a string to reference a variable name?
I'm trying to dynamically assign XML node names and attributes using a string value, I tried something like this:
Code:
var sItem:String = "book"; // to be dynamically assigned
for (var i:uint; i < _xml.book.length(); i++) {
aList.push(_xml.(this[sItem])[i].@title);
[Code]....
If I wanted to change the 'x' of a object, and a variable contained a the object's name, how would I change the 'x' by using the variable.Without variable:
Code:
myObject.x = 123;
With variable maybe?:[code]....
I'm writing a function which can take the names of different variables and use them to do some calculations. Long story short, I want to be able to call the function like this:
function caseConditionEvaluator( nameOfVariable:String )
It probably seems like a really roundabout way to pass the variable through its name rather than just passing the variable itself. This is related to me using XML to get the variable names, so they come in as strings. Just bear with me here.
Inside the function, I want to be able to do something like this:
trace( this[nameOfVariable] )
which should then trace the variable's value. Unfortunately, I just get an 'undefined'. How do I use 'this[]' to get the value of the variable from a string corresponding to the variable's name?
I desperately hoping someone can shed light on my problem. I am trying to reference a movieclip with a variable. I've done it before but in loops reading from xmlobjects but cannot get it to work in the most simplist way....??ar i = 0;_root.movie[i]._visible=0;
View 2 Replieshow you would target a function's local variable through a concatenated variable string.For example:
var txt = "Hello World";
function testing(msg) {
var test1 = msg;[code].........
I'd expect the trace to be "Hello World" but rather is given "undefined". So if variables created outside functions are created on the main timeline, where are local function variables created and how would you access them?
I'm trying to combine PHP/SQL and Flash. I've got a problem now. I want to load a variable that contains an url to an image. so the variable is like this: [URL] Now I want flash to load the image, not the text. The variable is called 'img1' but the loadmovie function doesn't work when I put it in.
View 2 RepliesHow would I remove this attachMovie? [code] I have tried these codes with no success [code]I am using flash 10.2, in flash professional 5.5.
View 1 RepliesLets say I have 3 Movie Clip Symbols in my Library : Movie0, Movie1 and Movie2
Each movie has a dynamic text box: "TextBox1"
I want to be able to write a function that can manipulate the alpha(or any attribute) of the TextBox1 in all three MovieClips.
In my limited experience I thought I could do something like the following:
for (var row:int = 0; row < dataArray.length; row++)
{
Movie(row).TextBox1.alpha = 1;
}
I hoped that this would loop through 3 times and set the alpha of the TextBox1 in all three movies to 1.
Is this possible? Can you reference an instance with use of a variable?
set to null a reference in this case?
private function initGame():void{
var game:Game = new Game()
}
[code]......
I have 10 text fields named "text1", "text2" etc;
I'd like to use a for loop to pulate each one, so that each text filed is populated with whatever i is:
for (var i:Number=1; i<=10;i++) {
"team"+i.text = i;
}
I keep getting errors with regards to how the text filed name is referenced.
What is the correct way to increment the text filed name and reference it?
I've tried:
["team"+i].text = i;
"team"[i].text = i;
but they don't work.