Actionscript 3.0 :: Reference Movieclip Instance On Stage?
Nov 21, 2010
1) I have a movieclip instance on stage (simple graphical element that represents platforms for a hero to run and jump along). I have placed it on the stage with an external class engine.as and in this class it is called myPlatform and is an object of Platforms.as. The movieClip is called platforms and from a trace(myPlatform.name) the instance name is instance3.
2) I am attempting to access the properties of myPlatform in an Enterframe event loop in my character control and collision class (called hero.as)Basically here is the bit of code I am trying implement within Hero.as :
if (myPlatform.hitTestPoint(x,y,true)) { // if a platform is hit
trace("hitME");
y--;
tGravity = 0; // reset
break;
}
Here's the error that I get:
1120: Access of undefined property myPlatform
This all worked when I was writing actionscipt within the FLA file, on the timeline frame 1.I simply don't know how to access myPlatform from within the external Hero.as class! Do I need to create a variable?
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Nov 21, 2010
I've been searching around all afternoon, and am pulling my hair out. 1) I have a movieclip instance on stage (simple graphical element that represents platforms for a hero to run and jump along). I have placed it on the stage with an external class engine.as and in this class it is called myPlatform and is an object of Platforms.as. The movieClip is called platforms and from a trace(myPlatform.name) the instance name is instance3.
2) I am attempting to access the properties of myPlatform in an Enterframe event loop in my character control and collision class (called hero.as)
Basically here is the bit of code I am trying implement within Hero.as :
[Code]...
This all worked when I was writing actionscipt within the FLA file, on the timeline frame 1. I simply don't know how to access myPlatform from within the external Hero.as class! Do I need to create a variable? Is there a really easy way to do this with some syntax/command that I have not learned yet?
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Jul 17, 2011
I am trying to make a reference to a movieclip instance that is in another movieclip.
Here's the deal: I have a main timeline for different pages of a website...then within that I make all of the art on each page into a movieclip so I can do animations every time that main timeline frame is called to, yet still keep my main timeline clean.
Within one page's movieclip I have a few buttons that I want to use to go to other pages by referencing them on the main timeline.I have been using this: (home_about is the about us button on my home page, and frame 31 is on the main timeline).
home_about.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndPlayFromFrame_6);
function fl_ClickToGoToAndPlayFromFrame_6(event:MouseEvent) :void
{[code].............
Since this home_about is within another movieclip,I get the access of undefined property error. Do I need to change the code I've pasted above or add in variable definitions to fix this?
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Dec 30, 2009
Is there a way to get an instance reference to the document class to call a method of it from the stage's timeline?I see that here's a possible solution: using a singletonOther solution I though of is using stage.getChildAt( 0 ) but it's not very nice.Is there an 'official' instance reference? because the document class is obviously instantiated at startup, but is that instance accessible in any way without having to use a custom solution like the ones mentioned?
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Oct 2, 2009
I have a movieClip and would like to run a hitTestPoint() if statement on it, but only for a particular instance within the movieClip.
Would: 'movieClipName'.'InstanceName'.hitTestPoint () { work?
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May 20, 2009
I am trying to create an interactive graphic. Basically, it's three squares layered on top of each other, with a large square in back, a medium square centered in the middle of the large square, and a small square in front centered in the middle of the medium square.
When you roll over the medium square, say, it expands to almost the size of the large square and some text fades in, and the small square on top of it fades away. When you roll off of the medium square, it goes back to it's smaller size, and the small square fades back in.
Currently, I have the actionscript in the movieclip to make the medium square get larger and smaller (and the text fade in), but I need to somehow reference the instance of the small square movieclip to hide it when I roll over the medium movieclip.
My actionscript for the medium square activity, currently:
Code:
stop();
this.onEnterFrame = function(){
if(rewind == true){
[Code]....
how to have this rolling over action get rid of the small square and then bring it back on roll out.
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Mar 23, 2012
I created an Array of lrgIcons that contains several MovieClips, they are then positioned within a second MC and pushed to a second array of lrgIconsOnStage, they are enabled as buttons and assigned an event listener (all of this works fine). Problem is, I want to know which lrgIcon is selected and react to it with an if statement. When I trace the array of lrgIconsOnStage I get [object amazonLrgIcon],[object emailLrgIcon],[object gmailLrgIcon],[object messagesLrgIcon],[object missedCallsLrgIcon] and when I trace e.target I get [object amazonLrgIcon] (depending on which item I selected, which in my mind, should trigger the code correctly, but it does nothing, Why?
Code:
var currButton:String;
var lrgIcons:Array = new Array(amazonLrgIcon,emailLrgIcon,gmailLrgIcon,messagesLrgIcon,missedCallsLrgIcon);
var lrgIconsOnStage:Array = new Array();
var lrgIconPosY:int = 69;
var lrgIcon:MovieClip;
[Code] .....
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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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Sep 30, 2010
I have 9 MovieClips on stage (p1, p2, p3...), different colors and sizes. I have one AS3 class "Snake" that as an instance is supposed to duplicate one of these MC's as a Shape. The reference to the specific MC is supposed to be on the constructor method. These instances are supposed to be triggered from one global Enter.FRAME event. How can I refer a distinct MC from within a class? I ask this because this MC will be dynamic and its properties ever-changing (position and color). I know this can be solved by adding distinct Enter.FRAME listeners per instance, but I'd rather avoid bad practices.
ActionScript Code:
public function Snake(id:MovieClip) {
body = new Array();
head=new Point(id.x, id.y);
size = id.width;
color = getColor(); // need to have a class variable that refers to the index
[Code] .....
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Nov 22, 2011
I am currently having problems referencing a MovieClip child which I add to the Stage from the Document Class. Basically when the MovieClip child is added to the Stage from the Document Class, I want a certain MovieClip already on the Stage to reference it once it is on the Stage.
Also, if it is possible, I don't want the MovieClip referencing the child being added to the Stage to have parameters linking it with the Document Class, because I plan on nesting this MovieClip within another MovieClip later on in the future.
Here is the code for the MovieClip class which is referencing the child once it is added to the Stage:
package com.gameEngine.assetHolders
{
import com.gameEngine.documentClass.*;
import com.gameEngine.assetHolders.*;
[Code].....
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Jan 21, 2009
How do I reference to a Movieclip on the stage from inside a Class.as?
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Mar 4, 2009
i am trying to create a new movieclip instance of Letter1 onto the stage,at the moment if i put
Code:
mc = new Letter1();
it does this, but i want to increase the number so i created a number var called letterDrop, as you can see below i tried to create a new mc using this but it doesnt seem to work, when i trace it i get Letter1 but when i try create it i get the error Letter1
TypeError: Error #1007: Instantiation attempted on a non-constructor.
at flashgame_fla::MainTimeline/gameEngine()
[code]...
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Jun 2, 2011
I'm currently working on a AS3.0 project in Flash. I have a main movie clip in flash on the stage. This mc contains 3 frames. They represent the pages in my application. In each of those frames are a lot of nested MCs. Such as menu buttons, display content for the MC buttons, etc. Everything is controlled by a class extending from MovieClip. When I run the application and press the green button on the second frame in a nested MC of the main Movie Clip on the stage. The event must jump to the 3th frame in that main MovieClip.
Here's the problem
If I immediately press the green button, everything works great.
But this does not happen when I press a different menu button first.
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Sep 8, 2009
I have created a movie clip on the stage and in symbol properties I have checked "Export for ActionScrip" the MC name is "slide" and the class is "slide" base class is flash.display.MovieClip.
When I test the movie I get this error.
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at main_fla::MainTimeline/frame1()
Here is my code:
PHP Code:
var slide = getChildByName("slide"); //add instance from library?
function slideRollOver(event:MouseEvent):void {
// trace("OK");
} slide.addEventListener(MouseEvent.ROLL_OVER, slideRollOver);
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Nov 2, 2010
I am trying to learn ActionScript 3. I have a MovieClip called Ship in the library and have made class of it called ship. The Ship movieClip glows from Frame 6 to indicate when it crashes into an asteroid.The myShipMovieClip child is controlled by arrow keys and asteroid approaches. The hitTest works but I cant get the ship to glow i.e. from the timeline go to the Ship MovieCli in the library and go to frame 6 to start it to glow. I have managed to do this in ActionScript 2 but have tried for the last few days to try and do it in AS3here is my code :
import flash.events.KeyboardEvent;
import flash.events.Event;
import flash.display.MovieClip;
[code].....
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Dec 12, 2009
me only still learning as3, i've checked google there and back, but somehow i can't find the answer for this: how to target a movieclip instance which is already on the stage from within a class file? i mean, targeting it from the document class file is easy, but what is i want to target it from another class file?
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Apr 7, 2012
I am using ScrollPane component of as2.0, but I want to move the scrollPane left an right by clicking external button does it possible? this button can work like the functionality of LeftArrow anf RightArrow in scroll pane.
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Dec 7, 2009
Is there a way I can reference a Movie clip I have on the main stage from a custom class of a document class?[code]
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Dec 8, 2009
Is there a way to refer to a Movieclip on the stage from a class file of the document class
Lets say I have 3 MovieClips on the stage(a Circle, a Square and a Triangle)
I have the document class which calls another class that controls the MC on the stage
Example
ActionScript Code:
package {
public class Example extends Sprite {
//Create the instance of the class being called
[Code]....
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Apr 14, 2011
I'm creating a little game - The player controls a character that follows the mouse. Pigs run away from the player, and the player has to get them all into a pen. To make the game a little more difficult I'm trying to add an enemy - wolves, that attempt to perform a 'hunt' method every x seconds. This method sends a reference of the wolf instance to Main (my document class) and Main then loops through the pigs on stage to see if there's any nearby. Now as far as I know this works - my problem is I'm unsure how to send the pig instance reference back to the wolf that called the hunt method, so it can then 'target' the pig, and then attempt to pounce on it.
This is my Wolf class:
Code:
package
{
import flash.display.MovieClip;
import flash.events.Event;
[Code].....
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Jun 9, 2010
I am currently working with a contractor company that is hosting a flex based website. They are putting the swf files that I have developed into their flex site.The issue that I am having is that within my swf file I need to reference the stage.I do this by "MovieClip(parent).stage"... I do not use the keyword "root", I just reference my swf's root through however many "parent"s i need. It works fine when I publish on my own, outside of their flex site. When it is used in the flex site, they are getting an error that they cannot reference the stage/ stage is null. It is vital that I am able to reference the stage of my swf.
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Jul 24, 2009
I've got a set of arrays being dynamically generated with paths to nested movieclips. The paths are coming in as strings, and I can't seem to get them to work as movie clip instance variables.as example, a string would be:
siteMC.b1MC.b1f1MC.rMC
(that path works fine outside of the array)
How do I get that kind of nested path from the string to something flash wont spit out as null?
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Apr 13, 2010
I thought since a Sprite is a display object container and I can add an instance of a MovieClip to it I should be able to reference the MC through the Sprite.
var bh1:Sprite = new Sprite(); beerChan = new BeerChan(); bh1.addChild(beerChan); trace("bh1 "+bh1); trace(bh1.beerChan);
1119: Access of possibly undefined property beerChan through a reference with static type flash.display:Sprite.
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Mar 16, 2010
I have 6 movieclips on the stage, each with a unique instance name. I just want to put them in order determined from an external xml file.I can get the name and order of each instance name evident from a trace, but I can't use that xml variable name to position the x on the stage.Seems simple, but it won't let me use the variable as an instance name:
//begin AS3
var loader:URLLoader = new URLLoader();
var xml:XML = new XML();
[code].....
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Dec 10, 2010
Quick question. I have been Googling this all morning, but it's either not there, or else written in a way that doesn't register. I am inclined to believe the latter, as this seems like it should be something completely trivial to me. I made a small Flash file using AS 3.0, and this is the first time I've really been able to stick to the OOP way of doing things and not hack together a mix of stuff from the timeline to get around not having everything work in the classes.
So I'd like to keep it that way, but one thing is eluding me: I can't call a method of an instance of another class (than the one I'm calling from) without resorting to "DocumentClass(root).instanceName.method." Intuition tells me there has to be a better way of doing this (like, without having to reference the document class every time I call another class instance's function; and CERTAINLY without having to use the word "root" - that just seems so Flash 5 to me. Does anybody have a better way of doing this that they can share?
[Code]....
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Nov 15, 2009
I have a script on frame 1 that onRelease of button should tell dynamic MovieClip instances which have been added by attachMovie on frame 2 and 3 to go to a particular frame , here's the code:Frame 1:numdests is set to 2pagesAmount is set to 4
btn_submit.onPress = function(){
for (var i = 0; i<numdests; i++){
for (d = 1; d < pagesAmount + 1; d++){
[code].....
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Aug 16, 2009
Lets 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?
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Mar 8, 2011
set to null a reference in this case?
private function initGame():void{
var game:Game = new Game()
}
[code]......
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Jul 15, 2011
Is it possible to control an object/element on a instance? If so, how is it done through actionscript? There is an instance "instance140" off of the root, that has an element named img4 that i need to reference... does anyone know how I would go about that? using root.instance.object form returns undefined.
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Nov 15, 2009
I have a script on frame 1 that onRelease of button should tell dynamic MovieClip instances which have been added by attachMovie on frame 2 and 3 to go to a particular frame , here's the code:
Frame 1:
numdests is set to 2
pagesAmount is set to 4
[Code].....
Currently the movies that are added using AttachMovie don't move when button on frame 1 is pressed.
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