So, performance wise, is it necessary to null references to classes, etc inside a function? Something like:
Code:
function myFunction():void{
var myVar:myClass = new myClass();
//do stuff with myVar...
//don't need myVar anymore
myVar = null; //is this necessary?
}
Trying to find the best way to use the xDoc variable in the newImg function without adding the newImg eventListener to the xmlLoaded function
var myXML:XML;
var xDoc:XMLDocument;
var xmlLoader:URLLoader = new URLLoader();
[code].....
I'm trying to make a button that gets it's getURL address from an external text file. So, I load the text file and assign it to a variable:
[Code]....
var q4:Boolean = false; //Will have thirty-eight of these, q4-q41
function noRepeat() {
if (q(_root._currentframe) == true) {
gotoAndStop(randRange(4, 41));
} else if ((q(_root._currentframe)) == false) {
q(_root._currentframe) = true;
}
}
Now, my problem is the bits in red (yes, I know they don't work, that was just the best way I could think to describe what I wanted).
If I create a string that says "q4" then I find it won't compare that to the boolean variable, but I'm positive there must be a better way than putting one of these on every frame.
clarification. let's say i have a function
function myFuction():void
{
var myArr:Array = new Array();
[code]......
I'm creating a simple scratch game (6 cards). It doesn't even have to contain difficult logic. You eventually win all the time ;)The code i wrote works pretty well, but i keep thinking it could be better. I'm not too familiar with coding, but i'm learning step by step. Do you have ideas to write this down in a cleaner and more sophisticated way?.g. I tried to separate the IF statement that returns in every function, so i would only have to write it down once, but i didn't succeed
//set card variables to 0 and when they're scratched, they're changed to 1
var checkCard1:int = 0, checkCard2:int = 0, checkCard3:int = 0, checkCard4:int = 0, checkCard5:int = 0, checkCard6:int = 0;
[code].....
when using nested functions in my code. It's very easy to want to do something like this:
ActionScript Code:
private function someFunction():void
{[codee].....
i am pretty familiar with tweaking as1/as2 performancehowever in as3 i am still a noob concerning optimization.i tend to have a class utils in my projects in which i carry a lot of static vars and functions.[code]
View 3 RepliesFunctions embedded inside other functions? In all my years of ActionScript programming, I've never seen this (this is part of legacy code written by someone else which I am adapting):
[Code]....
Does anyone know if strong typing variables in Flash does in fact increase performance? I've read and heard both versions.Also, is there a way to strong type a variable that you set this way:[code]
View 1 RepliesI'm wondering if anyone has experience with if there is a big difference in performance in ActionScript 3 between keeping a class with only public static functions, and utilizing those functions often (as in a frame event at 30fps), and in turning the class into a "normal" class of which I instead make an instance and call the functions via the instance instead.
View 1 Repliesthis is what i'm trying to accomplish; With a click on a movieclip (cannon_mc)a shot is being fired (ball_mc)
The longer mouse is down, the speed of wich the ball is fired with should increase.My question to you is;
What is the most efficient way to accomplish this? With a timer or something like this;
[Code]...
I'm devloping some library classes for flocking/steering behaviours on large numbers of objects (2000+). I'm finding that at < 500 instances, performance is reasonable. As the numbers increase, framerate bogs down.
I've seen remarkable performance with libraries such as Flint or Box2D with ridiculous #'s of particles / objects, so it should be possible to optimize / refactor my code to be a bit better.
I'm aware of the basic optimizations, such as bitwise operations and optimized for loops. Are there any more fundamental approaches I should be considering? For example, currently each instance is a vector-based MovieClip. Would working with BitmapData be more efficient?
Will I take a big hit in performance using nested ViewStacks? Should I strive to handle all navigation in one ViewStack and push children manually or will the affected performance be negligible?
eg.
<viewstack>
<tabnavigator />
<tabnavigator />
<tabnavigator />
</viewstack>
We have a medium size Flex 3.6 application that contains around 20 different page views (managed via a single lazy ViewStack) each having multiple components. Most use custom renderers.All model data is loaded at startup and changes to model instances are communicated via binding and/or collection change events.Once the user has viewed each page at least once, all page views are instantiated and happily listen to update events.Which in effect means that each time a model instance changes, all interested views receive that event and compute derived data or trigger item-renderers.I have tested and confirmed this behaviour in a proof-of-concept application. Even when setting a list to being invisible, it still listens to collection change events and invalidates any renderer affected.What would you do?
View 1 RepliesIf I have a function and I want to call a variable from another function (only 1variable), how do I do it? I know in the olden days you could set the variable to local or global, but that does not seem to work anymore. There is only 1 variable I need access to, but all the tutorials I have come across talk about making classes for multiple variables.
e.g. function2();
{
variable_b = variable_a;
}
[Code].....
Why does this not work???
Code:
function myFunction(val0,val1,val2){
trace(this["val"+0);
trace(this["val"+1);
trace(this["val"+2);
}
myFunction("hello","test","hi")
All i get is undefined. If i just put "trace(val0)" i will get "Hello" -- so i cannot work out how to get the value of the dynamic variable inside hte function?
I got this variable:[code]is there a possibility that the compiler gets confused because my variable has the same name like the functions's parameter (type = type)? i'm not certain about this topic. Normally I'd write my function's parameter like this (if such a case occurs):[code]just to make sure the names do not exactly match.
View 3 RepliesI can't figure this out.
Code:
function createTextBoxes() {
for (var n=0; n<caption_obj.textXML.length; n++){[code].....
The XML portion is working fine. What I'd like to be able to do is access the created text fields outside of the function. For example:
captions1.alphaTo(0,1,"linear",1);
This works fine when it's inside of the function, but outside of it, it won't. Basically I need to time the captions to things that are happening in an animation. The animations are also tween driven, so it would be something like obj_mc.tween("_x", 200,2,"linear", 5,fadeOutCaption1); with fadeOutCaption1 being a function that fades out the first caption and brings in the second. If there is a better/more effecient way of doing this let me know.I also can't seem to apply any styles to the text field. Do I need to create an array or object with ["captions"+n] and then pull from that?
haven't wrote here for a while!This is what I'm trying to do:
var level:Number = 1;
var goat:* = "thisIsLevel" + (level + 1);
var camel:Function = goat;
[code].....
I have an animation that has roll overs controlled by AS (see code below). It works the way I have the code, but it's really messy code. And I hate that I'm have the functions rewritten for each event.How can I simplify this code?
//On the main timeline
var gearsEnabled:Boolean = true;
var gears2Enabled:Boolean = true;
[code]....
I know PHP, JavaScript and AJAX. All of these other languages easily allow me to pass variables through a function, but I can't seem to work out how to do it in ActionScript 3. As you can see from the code below, I have created a variable called 'flag', this variable is set to 'notAdded'. However, once the function is called, I want to change the variable to 'added'. This for some reason does not work, the variable update only works within the function itself. There seems to be no global scope for functions.
Code:
var flag:String = "notAdded";
bobRunning.addEventListener(MouseEvent.MOUSE_UP , bobRunningUp);
if (flag=="notAdded"){function bobRunningUp(event:MouseEvent):void{ bobRunning.width = 30;
bobRunning.height = 30;
flag = "added";
}}trace(flag);
I'm trying to create a JW player plugin, a part of the source code is shown below:
public function initPlugin(player:IPlayer, config:PluginConfig):void {
api = player;
var streamUrl:String = 'xxx';
[code].....
i've just written the function below and I want to perform it multiple times but with different urls,
[Code]...
I was wondering if they found a better way of allowing the use of variables outside of an on function. For example in the script below I can use the variable bounds inside the target.onEnterFrame function because it's declared inside the constructor. However I can't use m_Bounds even though it's declared in the class.[code]...
View 7 RepliesI have a variable in the _root called 'ordered'. I have another variable called 'total' inside a function called 'loadXML'. 'total' receives a number value from a node in a XML file correctly. I now want to transfer this value to the variable 'ordered' which, as I said, is in the _root. However, 'total' is restricted to the function and I can't access it from the variable in the _root. Neither can I transfer the value from the variable in function to the _root.ordered, since such a line targets the _root of the function itself.I guess this isn't too hard to solve, probably just a path issue, but I have a few rather large gaps in my knowledge of actionscripting.On the stage, there are three objects; a movieclip with the instance name 'clip', a movieclip with the instance name 'orderbox' and finally a dynamic text field with the instance name 'pos_txt'.[code]
View 2 RepliesI am building a flash photo gallery that is fed by an XML file, now I am fine with all of the XML things in flash, my problem comes when creating the thumbnail images onRelease event. Here is my code:
Code:
_global.counter = 0;
for (_global.counter = 0; _global.counter<itemArray.length; _global.counter++) {
//populate thumbnail array with URLS
[code]....
The problem is that when I release the mouse button I get a variable undefined error in the output window. I have researched and have found that my problem is that I can't pass a variable from the main function to the onRelease function.
I have a stupid question. I got this variable:
Code:
var type:int;
and this function:
[code].....
how to access variables that are declared in a movie clip from a function declared in that same movie clip.
i.e.
****************************
var int1 = 1
var int2 = 2
[Code]....
I'm trying to do this in the main movie clip of a movie that I plan on importing dynamically in another movie. I've tried to use this.int1++, but I think that flash was looking for a variable that belongs to "myfunction" when I did that. I could just use _root.int1++ but like I said, I plan on dynamically loading this into another movie, in which case it would be pointing to the wrong movie.
I have the following code:
ActionScript Code:
//links
var navBarButtonArray:Array = new Array(navBar_mc.gadgetNews_btn, navBar_mc.gadgetReviews_btn, navBar_mc.gadgetFeatures_btn, navBar_mc.iphoneNews_btn, navBar_mc.androidNews_btn);
var categoryArray:Array = new Array("news", "reviews", "features", "iphone news", "android news");
var navBarLinkArray:Array = new Array("http://feeds.feedburner.com/T3/news.rss",
[Code]...