I am trying to add mouselisteners to a movieclip on my stage, by utilizing basically an activate class.
I want to do this to save alot of code clutter on my main stage. Here is what I did:
drew a simple movieclip, and linked it to action script with
[Code]...
I want to know how to make class instances into listeners and broadcasters, from inside each class. Here is what I am trying specifically... part of the Proj class... (projectiles, as a matter of fact)
Code:
private function listen():Void {
u.register(this);
onUpdate = function(){
step(); // a function I have which makes the projectile move (not shown)
}
}
where "u" is another class, the Updater class with this code...
Code:
class Updater {
// const. --- make this a broadcaster
public function Updater(){
[code]....
PS: What is the syntax for using AS2 code tags instead of just "[CODE|"?
I'm trying to build a listeners clean up class. I can do it for any item that isn't associated with an object or movie clip. However, how can I modify this to make it work for those items?
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I have many buttons in Main.mxml. I'm trying to move the button functionality into a Class and have Event Listeners inside the class respond to Click and call other functions. I have written:
Main.mxml
<mx:Button x="23.5" y="10" label="checker" click="{goListen()}" />
<mx:Button id="btnT1" x="252.5" y="10" label="t1" />
[code].....
I have a mc that i use as a button. I have an external class that controls the button and adds interactivity to it, here's part of the code:
[Code]...
The problem is, i want the btn that, when clicked, remain inactive.That's why I remove all the listeners in the class. HOWEVER, it still functions as a button, I mean the functions haven't been removed at all after I click it. What's wrong here? Why are the functions still there, if I have removed them when clicked at the btn?
I'm creating a class for a game, and I'm having a problem removing event listeners from movieclips in that class.In the class file I have an enterFrame event which puts the movieclips into motion - I want to remove that event listener when the movieclip is removed from the stage.I made the function 'public' in the class file and tried to target it as follows (animal is the movieclip)animal.removeEventListener(Event.ENTER_FRAME, animal.onEnterFrameHandler)
View 2 Repliesi am making a simple game i want to be able to add an keyboard event lisnter within the class constructor. However i am having trouble. i undertsand you have to pass the stage through a listed display object property stage? anyway i am getting errors that do not recognise my event listener keyboard event.
package louiseguchi.game
{
import flash.display.Stage;
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how do I use mouse event listeners outside of my document class. I have the following simplified document class:
public class Main extends Sprite
{
public var realMain:State1 = new State1();
[Code].....
However, this doesn't work in its current state; "State1" isn't outputted. I have seen references to the use of the Event.ADDED_TO_STAGE event, but am not sure if that is what I need to do, or how to use it.
Im am trying to access my event listners in my "menuButn" class from my doc class.
In my main document class i have the following:
Main.as
public function xmlLoaded(event:Event):void {
var menuButn:Class=getDefinitionByName("com.btn.menuBu tn") as Class;
[Code]......
I am working on a Flash demo (all AS3) that requires a scrollbar. I wanted to create my own so on searching I found this Kirupa tutorial. I learned it an incorporated everything (also went well beyond) and the end product works nicely. There is one aspect of the code provided in this tutorial that has me very confused and, although my code includes it and everything works, it bugs me to not understand it. It's this part of the Scrollbar class:
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I want to make a little game. What I need is to add event listeners to all of Tank objects inside the Battlefield instance. I just can seem to figure out how.
View 1 RepliesI have two components in my movie,how to write out the code for the listeners.Is it possible to write one listener that listens for changes in both components or do I have to write a separate listener for each? How would this look like written out?
View 1 RepliesI came in to flash on ActionScript 3 and when I was starting out just over a year ago I realised how much of a bother finding keyCodes was and changing controls was just as long as had to look up the new one I wanted to use. My solution was to (eventually) write a class that handles all of my key presses and event listeners attached to that stuff. instead of using keyCodes, the functions use strings for their arguments making it easier to see what keys you want to do what. Initially the class only worked for letters and numbers but I managed to make it easily customisable and includes the arrow keys, numpad numbers, space, enter, shift and control keys.
The reason why I wrote this thread was because: I plan on making it a public class (available to anyone who wnats to use it) and b) to see if there were any specific functions that people think may be useful. So far there are the standard key-down and onRelease type functions as well as a function that only returns true once for the duration that a key is down - difference between pressing and holding.
Can event listeners only be added to the class which dispatched the event? I ask because I want to have the logic for the listener on the main class, and the action is dispatched on click from a thumb which is instantiated in a scroller class. Kinda like this:
ActionScript Code:
pseudo code:
class main {
main() {
[code]....
This doesn't work. Why can't the main class listen for an event on the thumb class?
I have a swf that has key listeners listening for specific key strokes. This works fine until I load the .swf using the loader class. Do key listeners still work within loaded .swfs? Do I need to do something to the event bubbling phase?
View 3 RepliesI am create one custom class that can dispatch "showAlert" Event. I am add the eventListener for ("showAlert") to the stage. I need to capture the "showAlert" event. with stage listeners
////main Class
package {
import flash.display.MovieClip
[Code].....
I'm trying to take full advantage of the movieClipLoader along with listeners. But my callbacks aren't getting triggered. Inside one function I loadClip, when onLoadComplete happens I set the onRelease function. Within that onRelease I call another function ("cdPress") that also loads bigger images inside a clip.None of the callbacks in the cdPress function are working. The function is being called successfully, but the "onWhatever" callbacks are not.
Code:
function someFunction(){
cdListener.onLoadComplete = function(target_mc) {
target_mc.onRelease = function() {
[code].....
I think this is in the wrong forum... sorry! Should be AS3) I am trying to dynamically create listeners using metadata from a list of instance names in an array. Here is my code:
[Code]...
So I've gotten into using my own as Classes, and have an interesting question.
My main swf calls a php script that gets data from a mysql database which is returned as XML. Part of that data that is retrieved is a filepath to a jpg image. It then takes that filepath and other information, and passes it to my external class, the "news story" class.
All fine and good. Then, the "news story" class uses a loader to load that image along with some text, organize it, and voila, you've got your own very pretty "news story". (I'm extending the MovieClip class here, though I suppose it doesnt matter)
Now, my main swf uses this component to load multiple of these "news stories". The problem is, theres that load time for the image. The main swf is loading them all one at a time, because they are putting each one together on their own.
The key here is that it be dynamic. So, since we don't know how much text is in each "news story", we also therefore don't know it's height. What I'm doing is creating each story in the main swf, pushing it into a "news story" array, adding an event listener to each ones' loader, and when the event listener is triggered, I want it to go to the 'add content' function where it sets the news story's Y value based off the position and height of the previous story that was added (stacking them, obviously). This makes sense, because otherwise it'd add them all on top of each other and it'd be a jumbled mess.
The problem is, the event listener is on the loader object INSIDE the component actionscript. So, how do I figure out which news story to set the Y value for? Because the eventlistener is listening to the loader, not the class. I hope this makes sense AT ALL. Here is the code:
Quote:
while (fancy shmantzy conditions)
{
/*creates the news story and passes xml data to it (filepath, etc)*/
storyBlock = new StoryBlock(a bunch of parameters);
subCBArray.push(storyBlock); //array that stores each news story info
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I have made an event listener:text0_mc.addEventListener(MouseEvent.CLICK, showMe);showMe is a function, but I need it to call more than 1 function at once i.e. -ext0_mc.addEventListener(MouseEvent.CLICK, showMe1, showMe2, showMe3, showMe4, showMe5, showMe6, showMe7);Each function contains an if statment as below.
function showMe1(event:MouseEvent):void
{
if (shuffledArray[1]==orderArray[1]){
[code].....
In AS2 you could add an onRelease to multiple buttons like this:
Code:
onebutton.onRelease = anotherbutton.onRelease = lastbutton.onRelease = function() {
//do something when either button is pressed;
}
Is there something similar possible in AS3 using addeventlistener? Besided copying the same addeventlistner line for all individual buttons?
Lately I've been twitching in the back of my head wondering just how many references to objects that I'm making, and whether or not they are getting GC'd or not.My question in this sense refers to event listeners and whether or not they are removed in certain cases where you get rid of an object. Two examples:
First, and I think this one is an easy one... when you create an object that adds an event listener to itself INSIDE it's own methods (e.g. this.addEventListener(e:Event, function)), when you REMOVE that object (this), do it's event listeners disappear too? I can only say yes, because they are referencing THAT object and are INSIDE that object.
So I think that question answers itself (but I'd love to know if the truth says otherwise).
But secondly, if you add an event listener to an object from a sibling or parent object, and then remove the object, does that event listener stick around, therefore maintaining a reference to that object and keeping it in memory? And is that the concept that people keep referring to of 'weak' event listeners? E.g. someChildObject.addEventListener(e:Event, function)Also, are event listeners by default strong or weak?
And I am assuming that 'yes', it DOES keep the reference. Which, if you are a n00b programmer like me, you probably are all like, 'aww sh*t damn, how am I supposed to make sure that my objects are getting thrown in the garbage collector's mouth of goodness every once in a while?
Is it possible to check if an event listener already exists
like at some point in the code I write:
mc.addEventListener(MouseEvent.MOUSE_UP,someFuncti on);
but before at another point in the program I need to check if an evenListener exists on MC, is it possible to check?
I found this code for a contact form at[url]...and it dynamically creates input fields and buttons. I didn't like the dynamically drawn submit and reset buttons, so I added my own MCs(my 'buttons') to the stage.I tried modifying the code and took out the dynamically drawn buttons..However, I cant figure out how to add Event Listeners to the buttons which exist on the stage--Im getting undefined errors...[code]...
View 2 RepliesI have a movielcip (A) class in which I have used a Tween class effect on a child movieclip (B) scrollRect. The (B) Movieclip in turn has several movieclips whose have tween class effect being executed on thier child movieclips.the tweens are all unique to each movieclip and the event listeners are taken off once completed.This works all well and good in FLASH IDE..My problem arises when I try to view this in a browser on a Windows XP.[code]
What is happening in most cases it that the animation appears to "stick" but i think what may be happening is the listening or removal of the event listeners. The animations are left incompleted.Is there any rule of thumb when using multiple event listeners?[code]the effect disables and re-enables the buttons when its done.... then the listeners are removed.each one with the exception cretes its own unique tween (obviously this is a custom class built as each clip)
If you have multiple event listeners running, is there any way to remove all of them at once rather than one at a time?
View 3 RepliesI have a bunch od images that needs to be loaded and clicked. To do that, i'm using a listener object so when the images are loaded they can be clicked, and that works. But, at the end of the "for" only the last image can be clicked. I'm trying to make a different listener for each image, is this ok? Please, help.
var nn = "image"+j;
_root.createEmptyMovieClip(nn, getNextHighestDepth());
_root[nn]._x = (random(1700))+40;
_root[nn]._y = (random(350))+40;
[Code].....
I have an array that returns multidimensional data from an mysql database, when this is collected the createNews function creates the user interface. The problem I am having is the loop is iterating quicker than the UI is being created, is there a way to use event listeners with loops so it only continues after my function has completed its work?
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In my Flash project I have a movieclip that has 2 keyframes. Both frames contain 1 movieclip each.
frame 1 - Landing
frame 2 - Game
The flow of the application is simple:
User arrives on landing page (frame 1) User clicks "start game" button User is brought to the game page (frame 2) When the game is over, the user can press a "play again" button which brings them back to step 1
Both Landing and Game movieclips are linked to separate classes that define event listeners. The problem is that when I end up back at step 1 after playing the game, the Game event listeners fire twice for their respective event. And if I go through the process a third time, the event listeners fire three times for every event. This keeps happening, so if I loop through the application flow 7 times, the event listeners fire seven times. I don't understand why this is happening because on frame 1, the Game movieclip (and I would assume its related class instance) does not exist - but I'm clearly missing something here.
I've run into this problem in other projects too, and tried fixing it by first checking if the event listeners existed and only defining them if they didn't, but I ended up with unexpected results that didn't really solve the problem.
How do I define my own event listeners in AS3?
View 3 Replies