ActionScript 3.0 :: Keyword "this" - Refer To The Current Instance Variable Being Created When Its The Only One Being Created?
Dec 11, 2009
When an instance variable is constructed by a constructor method, why do you need to refer to the current instance variable being created when its the only one being created? I understand assigning an expression to it but why name it "this." when it is the only object that the constructor is building? Does it have some hing to do with being able to naming that object in the Local Variable? In other words am I creating a generic object that will be named in another class?
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Dec 12, 2008
I have balls (...sounded pervert) that are created by duplicateMovieClip, yes, they spawn, but right on top of each other, and I don't seem to be able to do anything to them, I tried ball+i.onEnterFrame = function(){} typed in several different ways ("ball"+i, ["ball"+i] etcetc...) And I just couldn't find How to refer to them. i'm trying to spawn them to random positions and make them move in random directions (got the moving part already coded but like I said I can't name them -> can't use it atm.)
Short version: How to refer to balls that are created by duplicateMovieClip?
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Jan 12, 2010
I'm trying to make a menusystem that will jump to specific frames depending on what frame I'm currently on. I have made a switch/case to evaluate the current frame. I have managed to find this code to get the current frame but I need an instance of my entire flash movie it seems? I have tried this (psudo code sort of). var frame = myClip.currentFrame; I then proceed to test frame in the switch/case statement. (All this is an event for a mouse event listener BTW). Now how can I refer to myClip?
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Mar 14, 2009
I have only one question but phrased it 3 ways:
1) Is it better to pre=render things say in photoshop or have flash render them?
2) if I have a field of stars that drift along; is it better to create that Star Field in photoshop as a single picture (say a .png) or to create a star in my library and add it to a movie clip and then have that drift along?
Lets say I have a blur effect on my stars and have an equivalent on the photoshop.
3) I have heard (and experienced) adding effects like blur takes a fair amount of CPU and memory so was wondering if I created the effect in photoshop and then imported the 'blurred' object into my flash if I could cut down on system resources?
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Aug 18, 2010
Trying to set up a world of warcraft like hotkey setup for an RPG i'm making for a school project, where you drag spells from the spellbook onto the hotkeys. Understand all the concepts, however, instead of doing a ridiculous amount of if statements, I want to loop the functions. Unfortunately, I don't know how to refer to certain variable and instance names within loops. I shall show you what I have:
ActionScript Code:
for(var i; i<2; i++){
spellbook_inst["spell_"+i+"_inst"].onPress = function(){
this.startDrag();
_root.hold_spell_position_inst._x = this._x;
_root.hold_spell_position_inst._y = this._y;
}}
The "spells" (i.e., icons you drag from the spellbook) are all named spell_(number)_inst, and are movieclips within the spellbook_inst movieclip. I want the drag function to be available for all spells. At the moment, I don't get any syntax errors, but nothing happens, so I presume I have referred to it incorrectly.
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Jan 16, 2011
In actions script 3.0 I would like to retrieve the class of two instances and then compare them. Is there a way to know what class an instance is made of?
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Dec 4, 2009
For AS 3
I have a class which crate a panel with close button. and i create an instance of this class like this
function _smallThumbClick(evt:MouseEvent):void {
var _popup:Popup=new Popup( square.width ,evt.currentTarget.y, evt.currentTarget);
addChild(_popup);
}
and this mouse event from the thumbnail(suppose), so if i click on the thumb it will create popup. so i want to close all other or previously opened pop window.
How do u get the popup class object to close from another class..
or is there any alternate method for detect instance of the movieclip or class..
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Jun 16, 2011
I am completely new to actionscript although I do come from a OOP background. I have been asked to trial Flash and Actionscript 3 in particular - so I do come with a few preconceptions on how I expect actionscript to behave. I have a problem I donot understand. I have created a new class and to test it I use a simple test harness in the form of a .fla file.
The issue I have is when I create a new instance of the class and assign it to a variable, subsequent background changes to that instance of the class are not 'picked-up' when referenced through the variable. I would expect that given instance of class could be assigned to many different variables and any updates using one variable would accessible using any of the other variables.
[code]...
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Jun 1, 2011
on my timeline i create a new instance of the class FirstClass with the following
code:
var firstObject:FirstClass = new FirstClass();
the class looks like this:
package {
public class FirstClass extends MovieClip {
public function FirstClass() {
[Code]....
On my timeline i would like to acces the x position of the object tempObject
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Jun 7, 2011
I'm building a small game. On my document class i create a instances of the class Character and Level with the following code:
//add the Level
level = new TileGrid();
level.y = 100;
[code].....
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May 21, 2009
how to control dynamically created clips... What I've got is a series of objects on the stage, that have been created using an external xml file. here's the code for this...
Code: Select allfor each (var MenuItem:XML in myXML..MenuItem) {
code for setting the clips on the stage, positioning them, etc, } But what that doesn't do is give each clip an individual instance name, so I've no way of controlling them on the stage? I presume I need to create a variable and then loop through the MenuItem xml assigning a unique instance as it goes through it?
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Dec 9, 2004
Is it possible to rename a class-instance that has already been created with a specific name?
For instance:
// Step 1) Create and name class-instance
var myClassInstance_1:myClass= new myClass();
// Step 2) Change name of myClassInstance_1
?????
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May 28, 2011
I am trying to use a for loop, to place 5 instances of the same movieclip on the stage. In the loop I used .name to give each movieclip a unique instance name. But when I try to reference one of those instance names in an event listener I get an error. Here is an example of what I am trying to do:
Quote:
var xPos:int = 120;
var yPos:int = 60;
for (var i:Number = 1; i<=5; i++) {
[Code].....
This code generates an error saying that the cStar2 property is undefined. In the example above, does the for loop create 5 copies of the movieclip starC_moov, and give them unique instance names cStar1, cStar2, cStar3, cStar4 and cStar5?
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Sep 17, 2009
Im dynamically creating an instance of a movieclip, call it a game piece. This game piece has 4 frames, each with a movieclip called base(although one is red, one blue, one green, one yellow). When the game piece is created I set the frame to indicate player color. Im also changing the alpha of base to 1.0 when its being dragged, 0.5 when its dropped.
Using the following code, everything works fine if the game piece color is set to the base in frame 1 (red). If the game piece is created and the timeline moved to a frame other than 1, I throw an error when trying to access base.alpha (this would be the second, third, and fourth instances of base in the game piece timeline). Heres the strange part, this is only a problem when the game piece is first created and added to the display list. Once created, even after the error has been thrown, I can access the alpha of bases 2, 3, and 4 in the drag start/stop listeners. Heres a link to the work in progress, and the relevant sections of code (shortened for brevity, t1 is the top left piece on the pallet, others just repeat the same code):[URL]
[Code]....
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Jul 11, 2010
Is it possible to get dynamically created children of a display object instance in action script 3?
Example
trace(_view.getChildByName("name")) = returns name of display object (success)
trace(_view.getChildByName("name").getChildByName("name2") = returns error 1061
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Aug 21, 2011
I have this main (document class) in a Flash project:
package {
import flash.display.MovieClip;
import flash.events.Event;
[Code]....
Now: if I pass a reference (ref) of the main class to Other and I add clippo as you can see in the first case, I can reference the movieclip clippo from the main (getChildAt(0) is "clippo" from the main). But, is there any way to use the second method (no ref) and do the same from the main class? I can see clippo onstage when Other creates it but I can't understand where clippo "lives" into the DisplayList.
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May 28, 2011
I am trying to use a for loop, to place 5 instances of the same movieclip on the stage. In the loop I used .name to give each movieclip a unique instance name. But when I try to reference one of those instance names in an event listener I get an error. [code]...
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Oct 31, 2010
How do you access an instance of a symbol created and added to the stage through the addChild(); method, from a different class?
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Nov 10, 2011
Without trying to explain the odd issue i am seeing, is this possible?
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Aug 16, 2010
If you once run an ObjectBuilder the object instantiated will be cached and next time you use an PropertyInjector or something else, the instantiated object will be used instead of creating a new object. Or at least this should be like this :) But in the example below it seems that mate tries to instantiate the object again: The following error occurs:
[Code]...
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Nov 14, 2007
the "for" loop below creates a grid from xml loaded content.. it first creates a row then populates that row with movieclips. the problem is "row1" creates fine but when it gets to "row2" the information that should be displayed is over written by what is in "row1".. this due to the second running of the inner "for" loop cant create over already set variables by the first running of it:
[Code]...
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May 23, 2008
Im creating an online survery and recording all the answers as a variable in _root.vars.variablename where each question creates a new variable in the vars clip.
When the user answers a question the variable is created and given a value e.g.
_root.vars.variablename1 = 1
_root.vars.variablename2 = 1
_root.vars.variablename2 = 0
But I need a piece of code to check if the variable has actually been created. The reason for this is I have a next button the user has to click once they have answered, and I dont want them to advance if they havent answered. So I need to add something like if (_root.vars.variablename1 exists ) {gotoAndPlay("answered");} else{ gotoAndPlay("noAnswer");}
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Mar 25, 2010
I've created an button object in flash. The button contains 2 layers. One is the background image and on top of it is a textField. The textfield is dynamic. I use the button inside a movieclip and I export it in a SWC. The I'm trying to use it in flex.
I'm trying to do this:
var myComponent:MyComponent = new MyComponent();
myComponent.button01.theTextField.text = "Caption";
I get and instance of the button(myComponent.button01 is not null in Flex debugger), but the instance of the textField(myComponent.button01.theTextField) is null and I'm not able to change the text(but the default text appears onscreen). The code is compiled correctly in flex.
I exported the in swc the button control as well. So the button is not the default SimpleButton from Flash, but an derived class generated by flash(with the same name as the symbol defined in flash). It contains theTextField memeber, which is null.
Here is the button timeline(Layer 2 contains the textfield, and the textfield instance is named theTextField):
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Jan 22, 2009
After some further testing, I found out that under Actionscript 3 XML (E4X) I'm unable to use dynamicaly created variable names...
The famous:
Code:
var i:number = 111
this["someVarName" + i] = "actual_value"
trace(someVarName111) // = actual_value
does not work for me with E4X lingo...
Code:
var myXML:XML
myXML = "...." //asume valid XML content here
trace(myXML.XMLData.@Memo_EN)
[code]....
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Jan 31, 2012
I have created a variable that when defined as String can end up containing what I need. It just doesnt do what I need it to do.So I can trace out a1Tap=containa1_ mc.square_ mc. saysquare_btn.That is what I want a1Tap to contain but it isn;t the right kind of data.[code]How do I set up and use the a1Tap variable so that a) it contains containa1_ mc. square_ mc.saysquare_btn (as it currently does)in a way that it work as a path name for an event listener?
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Aug 12, 2007
I am creating movie clips with a for loop using attachMovie, I would like to pass a variable into the clip itself at the time of it's creation. It seems simple enough, but my little brain is imploding...
So basically I got an MC: "clip"+i, which I would like to pass a variable (from an array), for it to use on it's own timeline. I want the next clip to be able to use the next variable in the array in it's own timeline.
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Jun 27, 2009
I want to change the value of a variable which is inside another flash movie .I have loaded the swf file.Inside the 'onLoadInit' function i wrote the code like below.
[Code]...
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Dec 10, 2009
Is there any way to dynamically name a varaiable or created movie clip? I know that I could make an array of movie clips, but what I really want to do is make a new movie clipe name based on another name. The reason I want to do so is that I want to pass a movie clip to a function and have it make a new movie clip (to contain the first) with a slight variation of the test such as "frame" or "handle" which I can then use to center the source movie clip.
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Mar 2, 2012
I have some movie clips in the library of a FLash file, which has a document class. The movie clips in the library are set up (via Linkage) to have a BaseClass. The document class creates containers for the movie clips, which are created by a timer. The base class has a click event that removes the movie clips. My problem is, how to reference the container that's created in the document class, when i want to do so from within the base class.
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Jan 27, 2009
It seems that under Actionscript 3 XML (E4X) I'm unable to use dynamicaly created variable names...
this is ok:
Code:
var i:number = 111
this["someVarName" + i] = "actual_value"
trace(someVarName111) // = actual_value
[Code].....
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