ActionScript 3.0 :: Make Event Flow Occur Synchronously?
Jun 24, 2009
Is there a way to make event flow occur synchronously?
Basically this is my scenario. I have a single method call that gets triggered by a server request. I want to be able to notifiy subscribers that the method has/is executing so that they may return a result. By modifying an attribute of the actual event object, the method can return that result to the server dynamically. Eg:
Code:
//method invoked by server
public function whatever(...parameters):* {
var event:MyEvent = new MyEvent(MyEvent.TYPE);
[Code]....
This code works around 70% of the time, but sometimes I see things are really happening asynchronously in Flash Player's event flow. Is there anything I can do to regulate this and make sure it happens synchronously?
I see the benefit of asynchronous commands (waiting for server responses...) but in my flex app it creates me more problem than anything. Here's what I want: EVERY command executes only after the previous one returned (to result or fault function) And I'd like to do this as easily as possible.. by the way the GUI must become irresponsive (maybe a wait message) while a long command is being executed (I could show the wait message in the execute function and remove it in the fault or result function..)
I've got a lovely little drawing of a tree, and when I hover over it, the leaves turn from green to brown, which is exactly what I want it to do, however, I only want it to do it once. At the moment, once it's finished it's colour change, it stays that shade of brown, but if I hover over it again, it starts the little green to brown animation again. Is there any way to make it only listen once? ie once it turns brown, it stays brown forever?[code]
I'm stepping through my code to figure out why a certain function takes more time to run the first time it gets called than on successive calls. The code flow for each function call is the same up to when a dispatchEvent gets called. I'm pretty sure it's different afterwards, as that call takes a lot more time the first time around. Unfortunately, I have no idea which other parts of the code chew on this specific event and thus cannot step through the handling of such event.
The question: is there a way to either figure out who handles such events or magically step through the handling code without explicitly setting breakpoints there?
There's a lot of talk of how the new Event Flow makes for easier communication between classes.This sounds swell,but nowhere is it properly explained. Every example I find concerns dispatching events within the same class or looped through a customEvent, but I need a way to tap into this Event Flow for backward communication.I have a mainGUI document class that distributes my application subclasses.How do I set up a listener within mainGUI that gathers certain events from any of its children or grand-children? And how can I use this line to post object properties?
My goal is to shoot a bullet everytime I click on ship. What happens, in fact, is that If I click on it once, the bullet is shot, but if I click on it twice before the first bullet is off the screen, the first bullet literally stops(it does not disappear, only stops) and the second bullet is shot.
public var ship:Ship = new Ship(); public var bullet:Bullet = new Bullet(); stage.addChild(ship);[code]...
What is the proper OOP method of communicating between classes that are not on the display list?
For example: The Document class instantiates a new class just for loading in different XML files. This XmlLoading class should let the document class know when the xml has been loaded and parsed so that the interface can be built out.
From my understanding, events can only be listened to and dispatched through the display list, but since there is nothing visual with this xml loader, it doesn't make sense to me to make this class extend a sprite and add it as a child of the document class.
How do I make an MC or other object listen always for an action to occur. I know that sounds vague and I don't mean it to be. I'm wanting to dynamically load MCs into another base MC. The deal is the amount of child MCs is not defined. I want each MC to be "listening" for an action to occur in a base MC and in other child MCs. I tried using localConnection, but it doesn't do the above.
I m building a little application, im design the graphic in Flash and im using Flash Builder for the Programming Side. I have 5 MovieClip inside a Sprite (the container), and i want to listen for MOUSE.CLICK. I add the event listener to the Sprite, instead of one for MovieClip, and its working good like this.
What if inside the Sprite (the container) i have also a TextField and exclude it from the event flow?
Is there a way to make text flow from one text field to another? I have some dynamic text coming into 2 textfields. I can have it so they enter the text as a paragraph for each field, but i was wondering if they could enter all the text and i could make it flow from one textfield to the other, like you would see in a magazine.
I've a few (eg. three) image sequence animations. One of them is a base, and the others have an alpha channel. I'd like to play them in flash at the same time with overlapping them one on another (base on bottom and the sequences with alpha channels above). I've converted them into flv format with alpha channel (using after effects) and loaded using AS3 one above another. Unfortunatelly i can't play them synchonously. Each of them is loaded by its own netstream, and i don't know, how to play them synchronized. The animations are played with no equal speed - what is obvious in the case of lack of synchronization.
The animations have to be choosen from the set of several animations using some other UI - that's the reason of the mess. I do not insist on the flv format, but it seems to be good choice for this purpose. The lenght of each animation is 300 frames. All of them has the same size.
Is the method of synchronize two flv files? Or maybe such applet has to be done in some other way?
I want to store some test data for a FlexUnit test in small XML files in my Flex project, and access them trivially for the flex test. How can I load these bits of data synchronously? HTTPService is the way I'd be loading them _a_synchronously, but adding event handlers to my test cases seems like a bit of overkill.
How can I load a group of Images and do something AFTER all of the Images have been loaded?
Furthermore I think they have to be part of the stage, to fire events, right?
I mean... I cannot simply create them, load the iamges and then add them to a Group just present in the interface... I have to add them to the Group BEFORE I load the iamges if I want to be able to handle the complete event, right?
I am using an component, and currently have a dataProvider working that is an ArrayCollection (have a separate question about how to make this an XML file... but I digress). Variable declaration looks like this:
I'm moving on to my next massive programming project and I'm trying to decide whether I should code it in as 2.0 or 3.0. I came across the new click event model in 3.0. Right now it's looking like a pain in the butt to me. So now I have to make a function and add it as an event listener? what the hell? What's the benefit? I understand stuff like this makes AS a more complete language but it's kinda annoying.
When game starts, the car runs automatically. Then we click the SPACE button, movement of car stops. And the door of structure near car is available to CLICK.
But in coding I got this error code:
TypeError: Error #2007: Parameter listener must be non-null. at flash.events::EventDispatcher/addEventListener() at shfg_fla::MainTimeline/key_pressed()
This is some part of my game code...
case Keyboard.SPACE : removeEventListener(Event.ENTER_FRAME,car_movement); --street_mc.bluehome_mc.door_btn.addEventListener(MouseEvent.MOUSE_DOWN,door_ready)
I have a project where I am loading in an external swf and when it error loading I want it to show the error on screen which I have accomplished and then I want to provent it from going any further . i.e no more frames entered no more axtionscript run
I tried this and got nothing
function ioError(e:IOErrorEvent):void { error_txt.text = e.text; trace(e.target.loaderURL); stop(); }
I have a main swf with a button that loads a simple Papervison3D cube swf.It loads just fine...but when i click a different button on my main swf (which removes the Papervision swf and loads a different swf) i see endless repeating lines of the same error build up in my error window. Visually, everything works (the Papervision swf is removed immediately and a new swf replaces it) but these errors suggest otherwise It looks like the Papervision swf has not completely been unloaded or something...i dunno. Is there some removal step that i'm not doing?
The strangest thing has occurred with one of my apps (Flash/Coldfusion/mySQL). I use a simple INSERT statement to save member details into my table. The table has a Primary Key on the memberID. Recently, one of my entries was saved multiple times (not supposed to happen). The datetimestamp shows the save occurred at the identical time. This has never happened before. I've read on Stackoverflow that there are alternatives to INSERT e.g. REPLACE INTO, but I'm wondering why this would have occurred in the first place?
var shapeString:String = "Princess,Round,Radiant,Princess,Heart,Round,Radiant,Emerald,Radiant,Radiant,Pear";
I need to figure out how to return the the 3 items that occur most in the order of highest to lowest. In this example it would end up being.
newString = "Radient,Princess,Round";
I imagine I would use indexOf somehow but I am not going to know what pattern I am searching for in the string so it is just based on the items that end up in shapeString based on a bunch of selected elements.
I have a problem with some code. Its in the else statement below. Essentially I am trying to make sure I can read in the mc._height value before I continue with the code, I use a listener to check that I can get the value which I can,however it seems to do all the code after the loadListner.onLoadInit function before this function.
I have many movieclips -I have 10 movieclips for each type-and i have around 7 types of movie clips (ex. 10 red squares, 10 green triangles, 10 blue circles movieclips) now I want a different action to occur if any of the movieclips get clicked-but the same action should occur if the same type gets clicked (ex. if the user clicks on any of the blue circle-it should get dragged, if they click on any of the green triagles-it should get deleted and so on)what's an efficient way of doing it except for
if square1.onclick=square2.onlick=function()...
if triangle1.onclick=triangle2.onlick=function()...
there's a prototype-but that affects all the movieclips-is there a way for me to make each of the movie clips-sort of a different category (object) so that way I can use prototype keyword-or anything else-to have the same affect? and not have to write repetitious code?(maybe some sort of inheritence to movieclip)
I had a function that occured on mouseclick called go_out. I want this function to occur when the timer fires after 5 seconds. After the 5 secons I receive this error:
I'm trying to have an animation occur on a timeline and not on Enter frame, so instead of it doing a continuous loop it just does the animation twice then stops. Currently this code is on the movie clip itself and I want to move it to the main as code line so it animates then stops.
I am getting the error message: flash cs3 "Motion tweening will not occur on layers with ungrouped shapes or on layers with more than one group or symbol".I have only one symbol in the layer, a graphic.Does anyone know how I can correct the "problem"?
I am using an component, and currently have a dataProvider working that is anArrayCollection (have a separate question about how to make this an XML file... but I digress).Variable declaration looks like this:
[Bindable] private var _dpImageList : ArrayCollection = new ArrayCollection([ {"location" : "path/to/image1.jpg"},
