ActionScript 3 :: Ints Always Faster Than Numbers / Floats?
Mar 1, 2012
Flash is known to behave in very unpredictable ways ways when it comes to manipulating data. I'm curious that if there is any performance/memory benefit to using Numbers instead of ints aside from values that need precision. I have heard that some basic operations in Flash may convert multiple times between the two type to resolve the expression. I've also heard that Flash runtime, under the hood, actually maps ints to non-precision Numbers/Floats during runtime. Is any of this true?
Everything seems to be a string right now & that kinda ruins the whole xml as an internal data structure thing, I don't need a big tree of string I need typed data :-/ Are there any changes I can make to either my XML files or my AS3 code that will force it to cast ints as ints and Numbers as Numbers? Or maybe some kind of type schema I can impose? Not really worked with XML til recently so chances are I'm just ignorant of the canonical way to deal with this...
Or... how do you XOR doubles without getting integer results? I am using Actionscript 3.0 and found the following:
var a:Number = 3.000000004; var b:Number = 29.999999999; trace ("a: " + a); //3.000000004[code]..........
Clearly, the XOR operation is converting my Numbers into ints. I am a bit surprised by this and don't exactly understand the reason behind it. But I do know that other bitwise operations will also change Number into int, so I am not that surprised.Be that as it may, is there a way to XOR doubles (aka Numbers) without having them get truncated to integers?I used the above XOR originally for performance optimization (these number switches are executed millions of times in an array).I assumed if I skipped the temporary variable, I would see a speed increase.Alas, if the Number data gets changed to int, it is all for naught.
public static function reversePairs(values:Vector.<Number>):void { //1, 2, 3, 4, 5, 6 -> 5, 6, 3, 4, 1, 2 var l:int = values.length;[code].........
What to use when 32 bit ints or even 53 bit Numbers arent large enough by far? Im thinking of just using a 256 bit array but theres prolly a better way.
My question is, does a better, faster CPU necessarily equal faster SWF compile times? Or does it rely on something else (OS, memory, etc). I only use AS3 and some of my projects take a while to compile. If certain hardware can guarantee me a faster compile time, it'd be worth including those things in my shopping list.
I can make a normal preloader, with a bar and percent shown and so on... But I want to make a little thing in the middle of the preloader that rotates faster and faster when the percent loaded goes up. This is what I thought would work:
I've got an object flying through the air, but I want it so that the object leaves a trail of glitter behind itself and that glitter floats to the ground. What would be the best way to do this?
[code]in my original code..function "test" will change the x axis of the images by Timer..I wanna the x axis of the images can be changed after every two seconds..but when I run it..it's obvies faster and faster every time when the Timer dispatch the TimeEvent the delay always shorter than the last time.
when cacheAsBitmap is true, do x and y suddenly become ints? im ok with them being drawn this way, but my calculations require x and y to be numbers, because else strange behaviour occurs, which is happening now.
I have a project made in flex, using php data services to access a sql server database, and I need to convert it to mysql, I have changed all my php services from sqlsrv to mysqli. Something like this:
It worked fine on sqlsrv but with mysqli it returns to flex the INT, BIT or DATE values as string the main Datatypes on mysql are INT,VARCHAR,BIT(1),DATETIME,DATE (same as sqlsrv) and on the flex the return types are mainly as object[]
I want to generate a variable number of random numbers less than 16 with no duplicate numbers
Ive posted the fla, and what i'm doing is generating a random number and putting it into an array then using a for loop to cycle through the array for each new random number to check if its already there. if it is, then i want to regenerate that number.
if you test the fla you'll see that all i get in my array is some lovely zero's and i sort of know why this is, but don't know how to stop it.
I am trying to convert a string having numbers to an integer.
//15 9's are there var str:String="999999999999999" var res:Number = new Number(str);
But it is not able to convert correctly as the the var res now has the value 100000000000000000. I know that the number has 52 bits of memory, then why is it not able to do the conversion?
create a function that picks out X amount of numbers from a set of numbers? So if X=3, then i need this function to pick out 3 different numbers from say a set of numbers (1, 2, 3, 4, 5, 6, 7, 8) and then stored it into X number of variables.
In saying that, X will only =2, and =5. So in the first instance, i'll need 2 random numbers from the set above that are not the same numbers, and second instance 5 random numbers from the set above (also no repeats of numbers). Then i need to be able to store those 2 or 5 different random numbers from the set into variables to call them with other functions.
I have been using Actionscript 3.0 in Adobe Flash Builder for a few weeks,and I really like it! Bare with me because I'm not really good at it, yet. Anyway, I was wondering how would I go by adding up odd numbers from an array of numbers? I know how to make all of the numbers add up, but adding only the odd numbers I'm not so sure how to do it.
I am making a flash game and I am trying to make it as efficient as possible. I need to set a timer and then do something after the timer runs out.So, that being said I am wondering which method would be faster (or more efficient):Making a timer object and listening to the TimerEvent.TIMER_COMPLETE or in the ENTER_FRAME event of the game checking a Boolean (time) and then if it is true, incrementing a variable until that variable is equal to x, then performing the operations.
On a button click I would like to accelerate at a specific moment the movie (from 24 frames per second to 60) and then slow it down again to 24 frames per second.
I've created a flash interface with action script and the whole shebang for the web. It takes hours to load and I've seen sites with even more pictures and information load faster. I've compressed all my pictures and implemented various UI loaders to spread the load time out but it still takes a while. Does anybody have any tips and tricks to make my flash load faster?
I'm working on a project which draws circles continuously at framerate and animates them around the stage and I'm running into performance issues.
I'm already converting all objects to bitmapData as soon as they become static. My question is, will converting the circles to bitmapData as soon as they are drawn increase performance? In other words, is animating say, 200 bitmaps (with transparency) faster than 200 vector circles?
Are there any drawbacks to this technique? (I'm thinking opacity problems maybe?)
If they were more complex shapes than circles would the answer be different?
Compared to native apps, my Flex application runs like a hog born by a snail, especially on mobile devices. What tricks can I employ to optimize it's performance
I am using sendAndLoad to query a database that returns over 30,000 records. While the query itself is executed in 0.43 seconds (says phpmyadmin) the sendAndLoad takes some 15 seconds to be executed in AS2. I am wondering if there is a faster alternative to this method.
i've been kinda notified about loading external SWF's into a main time line and then some how positioning them where they are suppose to be. But heres my problem. My site is set up much more different then the typical flash website. the
ActionScript Code: gotoAndPlay(50) to go the certain links isn't on the main time. Its actually in a movie clip on the main page that when you click expands out and you can hover over/out of the links and all they do is show a little bit of content. I'e looked at what has the most MB's and it is my background. Just because it is very large. like 22 INches large. (It is scrollable with the mouse) But the background stays constantly there through out the whole time the user is on my website. How would I make this site load much faster. It takes like 5 mins to load my website.
I am doing this interactive display for school and I have 2 .swf games and 5 .swf movies or animations. My animations are loading ok and so are my games. However, when clicking the buttons to navigate through the whole interactive journey, the games will not go off of the screen. I have tried searching for codes, making up codes, and unloading the games, but nothing works! Also, I have to have the fps set at 12 for the games but I also have an interactive quiz, and with the fps at 12 you have to click the next button like 5 times to get it to slow down! Is there a way to make the time for one .swf faster then the others?
I have a large band of images (1000px width aprox.) and I have an animation segmented in 15 frames that makes a tweening between the first picture and the final one, with stops on each 15 frames. So I have 2 arrows one to move on and one to move back, the one on the right simply do : _root.nameMC.play(); and the other one calls a function that makes to play the MC back.
the effect is really nice, you push right, and the MC goes rights, back and goes back, ohh, impresive , but, what If I'm on the 20 picture what means that I'm on px 800 or what is the same, I have pushed the button 20 times and I want to go back to the first picture or the third one?. So here's my question, I would like to make another navigation button that allows the user while this button is being pressed the band will play faster than It's really time line.
I'm trying to make a multi-player game. Should I use SharedObject, which I find REALLY simple, or XMLSocket to make the users communicate with the server? Which will be the faster option?
