What can I use instead of Timers to help my performance? - actionscript-3

My app is very slow on mobile devices.
It uses a lot of Event.ENTER_FRAME event listeners, so I switched (as I read they are much more performance heavy) to a global timer that these classes listen for if they need to update (they only use these timers if they have been initiated by a TouchEvent).
I also tried enabling hardware acceleration, and switching to using the CPU, but these have not helped with the lag issues to a noticable amount. (my app has very few animations so I think this is the best decision)
I do have a lot of MovieClips in it, however very few of them actually animate, so I doubt this is an issue. (This is also why I do not freeze and unfreeze objects, as they are never removed from the stage)
On this website they said the following about timers
– the more timer instances linger in the system, the more you can expect slow and choppy gameplay or unresponsive UI.
I only use one timer, so I didn't think this would be an issue, but I do have a lot of event listeners that use this timer to update, so I can only figure that the timer must be the issue. Thus to avoid lag I am looking for a better alternative.
To be clear, I'm not using many Event.ENTER_FRAME event listeners anymore, I've mostly switched to timers. With that being said, here is an example of a more resource demanding one.
package
{
import flash.display.MovieClip;
import flash.events.Event;
public class mc_BattleScene extends MovieClip
{
public static var mc_PlayerFace:MovieClip;
public static var enemyAttackEffect:MovieClip;
public static var mc_playerHitBox:MovieClip;
public static var battler1:Number = 1;
public static var battler2:Number = 1;
public static var battler3:Number = 1;
public var lvlModifier:Number;
public var dmgReduction:Number;
public var dmgDealt:Number;
public static var dmgSpeed:Number = 1;
public function mc_BattleScene()
{
visible = false;
addEventListener(Event.ENTER_FRAME, onFrame);
mc_PlayerFace = playerFace_mc;
enemyAttackEffect = attackEffect_mc;
mc_playerHitBox = playerHitBox_mc;
function onFrame(e:Event):void
{
battler1_mc.gotoAndStop(battler1);
battler2_mc.gotoAndStop(battler2);
battler3_mc.gotoAndStop(battler3);
if (Game.playerInteractionStatus[1])
{
//we are fighting
visible = true;
if (attackEffect_mc.hitTestObject(playerHitBox_mc))
{
// attack hit us, deal dmg
dmgReduction = (Game.playerStats[2] * (Game.enemyStats[1]));
dmgDealt = Game.enemyStats[1] - dmgReduction;
attackEffect_mc.x = 516;
if (Game.playerStats[0] - Math.round(dmgDealt) <= 0)
{
// round dmg to 0 (were dead)
Game.playerStats[0] = 0;
}
else
{
// deal damage to us
Game.playerStats[0] -= Math.round(dmgDealt);
}
}
else if(attackEffect_mc.hitTestObject(wall))
{
//stop the player from moving (by doing nothing)
}
else
{
attackEffect_mc.x -= dmgSpeed;
}
}
else
{
// reset the position of the attack effect if we are not fighting
visible = false;
attackEffect_mc.x = 516;
}
}
}
}
}
This example of Event.ENTER_FRAME is one of the few that actually are this complicated, the other Event.ENTER_FRAMEs tend to simply update values (ex: update a text field to display correct number variables)
For example: creating multiple vars inside an enterframe could clog
the memory and cause lag.
I've avoided doing stuff like this, as not only what you've said, but in my opinion I think it doesn't make sense to continuously define it in a function, I update these values only.
Resources
http://help.adobe.com/en_US/as3/mobile/WS4bebcd66a74275c36cfb8137124318eebc6-8000.html
max links allowed

Related

TouchEvent.TOUCH_BEGIN, onTouchBegin Freezes after several Reloads

I am building an Adobe Air AS3 IOS and Android App, in which i have a movie clip in the center of the stage. When you start touching this movie clip, you can move it all around the stage.
This is how i'm doing so :
Multitouch.inputMode = MultitouchInputMode.TOUCH_POINT;
MC_M1.alpha = 1;
MC_M1.addEventListener(Event.ENTER_FRAME, ifHitAct);
MC_M1.addEventListener(TouchEvent.TOUCH_BEGIN, onTouchBegin);
MC_M1.x = 0.516 * gameIntro.stageWidthToUse;
MC_M1.y = 0.75 * gameIntro.stageHeightToUse;
MC_M1.height = 0.2 * gameIntro.stageHeightToUse;
MC_M1.width = MC_M1.height / 1.4;
gameIntro.STAGE.stage.addChildAt(MC_M1,1);
function onTouchBegin(event:TouchEvent)
{
trace("TouchBegin");
if (touchMoveID != 0)
{
trace("It Did Not");
return;
}
touchMoveID = event.touchPointID;
gameIntro.STAGE.stage.addEventListener(TouchEvent.TOUCH_MOVE, onTouchMove);
gameIntro.STAGE.stage.addEventListener(TouchEvent.TOUCH_END, onTouchEnd);
}
function onTouchMove(event:TouchEvent)
{
if (event.touchPointID != touchMoveID)
{
return;
}
//trace("Moving")
MC_M1.x = event.stageX;
MC_M1.y = event.stageY;
}
function onTouchEnd(event:TouchEvent)
{
if (event.touchPointID != touchMoveID)
{
return;
}
//trace("Ending");
touchMoveID = 0;
gameIntro.STAGE.stage.removeEventListener(TouchEvent.TOUCH_MOVE, onTouchMove);
gameIntro.STAGE.stage.removeEventListener(TouchEvent.TOUCH_END, onTouchEnd);
}
When the player actually looses the game, what i am actually doing is the following :
MC_M1.removeEventListener(Event.ENTER_FRAME , ifHitAct);
MC_M1.removeEventListener(TouchEvent.TOUCH_BEGIN , onTouchBegin);
gameIntro.STAGE.stage.removeChild(MC_M1);
MC_M1.alpha = 0;
isDead = 1;
replayButToUse.x = 0.127 * gameIntro.stageWidthToUse;
replayButToUse.y = 0.91 * gameIntro.stageHeightToUse;
replayButToUse.addEventListener(MouseEvent.CLICK, gotoIntro);
This is all happening in a class called : introClassToUse.
So when the users looses, he will get a replay button, and when he clicks it, he will go back to the same class and reload everything, using the following code :
function gotoIntro(event:MouseEvent):void
{
replayButToUse.removeEventListener(MouseEvent.CLICK, gotoIntro);
replayButToUse.alpha = 0;
replayButToUse.removeEventListener(MouseEvent.CLICK, gotoIntro);
stop();
var reload:introClassToUse = new introClassToUse();
}
And so everything loads back up and the game restarts. My problem is, i'm facing a very weird behavior when i tend to replay the game more than 2-3 times. The MC_M1 just stops listening to any touch event, but keeps on listening to ENTER_FRAME events, in which i keep touching the MC_M1 but it seems to not respond to it. I even debugged it remotely from my iPhone, for the first couple of replays, i can see the trace("TouchBegin"); with it's outcome, it was showing me TouchBegin, but after a few replays, the touch events just froze. What am i missing?
Any help is really appreciated, i'm new in AS3, i need to learn so i could manage more
Edit 1 :
I have no code on any frame, i just have lots of AS Classes.
The fla file is linked to an AS Class called gameIntro. In this class, i have linked the following :
- STAGE is an object of type Stage.
- gameIntro.STAGE = stage
Later on, when the user clicks a play button, i call the class introClassToUse. This class has all the game functionalities. All the code present above is in introClassToUse. When the user looses and clicks the replay button, he will go to "goToIntro" function, im which i recall the introClassToUse.
It's all working fine, with several other timers implemented and all, the only problem is that after several replays, the MC_M1 just freezes over
I am removing the MC_M1 each time the user looses and re-add them when i call back the introClassToUse, because i tried to use the .visible property, it didn't work at all ( this is why i am using the gameIntro.STAGE.stage.removeChild(MC_M1)
I know the question is old but maybe someone is still wondering what is going on here (like me).
There are lot of problems in you code but I thing the root of your problem starts here:
function gotoIntro(event:MouseEvent):void{
//...
var reload:introClassToUse = new introClassToUse();
}
It is usually unwanted behavior if simply creating an instance does more than nothing to your program and you don't even need to assign it to variable in this case.
You mentioned this code is located in your introClassToUse class. This basically means that you are creating new instance of your game inside old one and this seem to be completely awry.
You should consider using only instance properties in your class definition and create new introClassToUse() in external classes;
You didn't include many important details about your code like
How the whole class structures look like - for example you can't place line like MC_M1.addEventListener(Event.ENTER_FRAME, ifHitAct);in the scope of your class so obviously you have this in some function and we don't know when and from where it is called.
Where and how your variables are declared, and assigned. It's hard to tell if your MC_M1 is property of an instance or a class, is it internal/public/private/...
Do you link library symbols to your classes or acquire it from stage.
There could be many things that could give you such result. Based on what you wrote I've reproduced behavior similar to what you've describe but using mouse event and a dummy loose condition. This ends the game each time you drop the mc partially outside right edge of the sage, show restart button and starts again if you click it (basically it's mostly your code). It works fine for about 10s and than suddely you can't move the mc anymore. The frame event is still tracing out but touch/mouse is not.
How can it be? I suspect that you could remove only listeners somewhere and have invisible mc stuck on the new one. And this could be easy overlooked, especially if you using static properties. Again we don't even know where is your movie clip coming from so we can only guess what is happening whit your code but I've tried to take the example simple this is how I did it. The problem may lay in some completely different place but you can guess for all scenarios.
Document class of the project - GameIntro.as
package
{
import flash.display.Sprite;
public class GameIntro extends Sprite
{
//Document class. this need to be compiled with strict mode off.
public function GameIntro() {
GameIntro.STAGE = stage;
GameIntro.stageWidthToUse = stage.stageWidth;
GameIntro.stageHeightToUse = stage.stageHeight;
var intro:IntroClassToUse = new IntroClassToUse();
stage.addChild(intro);
}
}
}
IntroClassToUse.as
package
{
import flash.display.MovieClip;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.events.TimerEvent;
import flash.utils.Timer;
/**
* You need to have library symbol linked to this class in .fla with two mcs -
* mcFromLibrarySymbol (dragable) and repButton (reapatButton)
*/
public class IntroClassToUse extends MovieClip
{
var t = 0; //timer ticks
var fc:uint = 0; //frames counter
var isDead = 0;
var mc;
static var repButton;
var logicContex:Timer = new Timer(30);
public function IntroClassToUse() {
trace("toUse", GameIntro.stageWidthToUse);
mc = mcFromLibrarySymbol;
if(!repButton) repButton = repButtonX;
logicContex.addEventListener(TimerEvent.TIMER, logicInterval);
logicContex.start();
init();
}
internal function init() {
trace("init");
mc.alpha = 1;
mc.addEventListener(Event.ENTER_FRAME, onFrame);
mc.addEventListener(MouseEvent.MOUSE_DOWN, onMDown);
mc.x = 0.516 * GameIntro.stageWidthToUse;
mc.y = 0.75 * GameIntro.stageHeightToUse;
mc.height = 0.2 * GameIntro.stageHeightToUse;
mc.width = mc.height / 1.4;
GameIntro.STAGE.stage.addChildAt(mc, 1);
}
internal function onLoose() {
trace("onLoose");
mc.removeEventListener(Event.ENTER_FRAME , onFrame);
mc.removeEventListener(MouseEvent.MOUSE_DOWN, onMDown);
GameIntro.STAGE.stage.removeChild(mc);
mc.alpha = 0;
isDead = 1;
repButton.x = 0.127 * GameIntro.stageWidthToUse;
repButton.y = 0.91 * GameIntro.stageHeightToUse;
repButton.addEventListener(MouseEvent.CLICK, onReplay);
repButton.alpha = 1;
}
internal function onReplay(e:MouseEvent):void {
trace("onReplay");
repButton.removeEventListener(MouseEvent.CLICK, onReplay);
repButton.alpha = 0;
stop();
new IntroClassToUse();
}
internal function onMDown(e:MouseEvent):void {
trace("mouseDow");
GameIntro.STAGE.stage.addEventListener(MouseEvent.MOUSE_MOVE, onMMove);
GameIntro.STAGE.stage.addEventListener(MouseEvent.MOUSE_UP, onMUp);
}
internal function onMMove(e:MouseEvent):void {
mc.x = e.stageX;
mc.y = e.stageY;
}
//you loose the game if you release you mc with part of it over rigth stage edge.
internal function onMUp(e:MouseEvent):void {
trace("mouseUp");
GameIntro.STAGE.stage.removeEventListener(MouseEvent.MOUSE_MOVE, onMMove);
GameIntro.STAGE.stage.removeEventListener(MouseEvent.MOUSE_UP, onMUp);
trace("Stage:", GameIntro.STAGE.numChildren);
if (mc.x + mc.width > GameIntro.STAGE.stageWidth) onLoose();
}
internal function onFrame(e:Event):void {
trace("frames", fc++);
}
internal function logicInterval(e:TimerEvent):void {
if (t++ < 300 || !isDead) return;
init();
mc.alpha = 0;
mc.removeEventListener(MouseEvent.MOUSE_DOWN, onMDown);
isDead = 0;
}
}
}

Haxe Map Memory Cleanup Issue

So I have been using Haxe for a while and it has occurred to me recently that I don't really get what happens on some other the non-flash targets as far as memory cleanup. I mean 'new'ing everything and dumping it by setting references to null gives me this feeling that there are memory leakages, but I can't seem to find the documentation I'm looking for.
Specifically I use dictionaries/maps a decent amount. Like this:
var items:Map<String, MyObject> = new Map();
items.set("someKey", new MyObject(args...));
// Later
items["someKey"].doSomething();
items["someKey"].setVal(2);
...
// When Finished
items.remove("someKey");
The last line there just dumps my object somewhere into oblivion and hopefully gets garbage collected (at least on the Flash target).
I put together a little program just to see the cleanup in action on Flash/Neko and then change it for other targets, but I am failing to even see the cleanup on the Flash Neko target. Here is the project code:
package;
import openfl.display.Sprite;
import openfl.events.Event;
import haxe.ds.StringMap;
import openfl.events.KeyboardEvent;
import openfl.ui.Keyboard;
class Main extends Sprite
{
private var keypressID:Int;
private var itemID:Int;
private var dict:StringMap<Sprite>; // Using this since I read Map<String, T> just compiles to StringMap<T>.
public function new()
{
super();
addEventListener(Event.ENTER_FRAME, init);
}
private function init(event:Dynamic):Void
{
removeEventListener(Event.ENTER_FRAME, init);
// Entry point.
keypressID = 0;
itemID = 0;
dict = new StringMap();
stage.addEventListener(KeyboardEvent.KEY_UP, keyPress);
}
private function keyPress(event:Dynamic):Void
{
if (Std.is(event, KeyboardEvent) && cast(event, KeyboardEvent).keyCode == Keyboard.A)
{
trace('ID: $keypressID - Adding Item');
keypressID += 1;
for (i in 0...10000)
{
itemID += 1;
dict.set('$itemID', new Sprite());
}
}
else if (Std.is(event, KeyboardEvent) && cast(event, KeyboardEvent).keyCode == Keyboard.R)
{
trace('ID: $keypressID - Removing Items');
keypressID += 1;
removeItems();
}
// Force garbage collector to run.
else if (Std.is(event, KeyboardEvent) && cast(event, KeyboardEvent).keyCode == Keyboard.C)
{
trace('ID: $keypressID > Starting GC');
keypressID += 1;
forceGarbageCollection();
}
}
private function removeItems()
{
trace('ID: $keypressID > Remove All Item');
for (val in dict.keys())
{
dict.remove(val);
}
dict = new StringMap();
}
private function forceGarbageCollection():Void
{
neko.vm.Gc.run(true); // This does not work.
}
}
I run this on Windows and under task manager, my neko process only grows and never shrinks. Its gets up to 500MB quick when hitting 'A'. I then 'R' to remove all references to the items, but they never get collected it seems even when I force the GC.
I also tried storing openfl.util.Timer objects with event listeners attached to them to do traces and they never seem to get collected either. They just keep tracing. Now I suspect that may be because of the event listener reference, but am sure I have seen that trick in other AS3 memory leak tracking code.
Am I missing something or doing something wrong?
Edit:
I have modified the above question to reflect this, but I was mistaken about Flash player. I did get the memory to be reclaimed when running in the Flash player using flash.system.System.gc(); It seems the problem may be specific to neko which my question still addressed.

How to get the width of a MovieClip for a different frame instantly?

Is there a way to get the width of a MovieClip (that does have a name) on a different frame? I have tried to using .width and .getBounds(null).width, however, both of them will give me only the width of the current frame. I have tried to do gotoAndStop(frameiwant), but the information doesn't seem to be correct until at least the next frame
I would like to get the width of the frame instantly so I don't have to wait until the next frame for the width.
The only way I could think of doing this was to have an initial phase in your project which will:
Run through all of the frames in your timeline. Create an object which will hold information about the children in that frame. It can be called Frame.
Iterate over all the children that are added to the stage in that frame and add a definition object that describes that child. The description can be as basic or vast as you need. We can call this class an ObjectDefintion.
The downside of this process is that you need to wait for the FRAME_CONSTRUCTED event like #Larusso pointed out in his answer. This means that the frame actually has to finish rendering before you are able to get information about its children, which of course means you have to go through and render every single frame in your timeline during this phase. All you can really do to mitigate this problem is set the frameRate to something high and then set it back when you're done assessing all the frames.
I have set this up and it works well - I'll paste each class and try explain what they do.
So for your document class (or whichever MovieClip holds the frames you want to look at), I have this:
public class Main extends MovieClip
{
private var _userFrameRate:int;
private var _frames:Vector.<Frame> = new <Frame>[];
public function Main()
{
_userFrameRate = stage.frameRate;
stage.frameRate = 120;
addEventListener(Event.FRAME_CONSTRUCTED, _assess);
}
public function getFrame(index:int):Frame
{
return _frames[index - 1];
}
private function _assess(e:Event):void
{
var frame:Frame = new Frame(this);
_frames.push(frame);
if(currentFrame === totalFrames)
{
removeEventListener(Event.FRAME_CONSTRUCTED, _assess);
gotoAndStop(1);
stage.frameRate = _userFrameRate;
ready();
}
else play();
}
public function ready():void
{
// Start here.
// There is a MovieClip on frame 10 with the instance name 'test'.
// We can get the width of it like this.
trace( getFrame(10).define("test").property("width") );
}
}
This basically initializes the phase in which we will run over each frame in the MovieClip and assess its children. The ready() method is used as the entry point for your code post-assessment.
Next we have the Frame class, which serves to hold information about children related to a frame:
public class Frame
{
private var _main:Main;
private var _content:Object = {};
public function Frame(main:Main)
{
_main = main;
update();
}
public function update():void
{
_content = {};
for(var i:int = 0; i < _main.numChildren; i++)
{
var target:DisplayObject = _main.getChildAt(i);
// This will be explained below.
var definition:ObjectDefinition = new ObjectDefinition(target, "x", "y", "width", "height");
_content[target.name] = definition;
}
}
public function define(name:String):ObjectDefinition
{
return _content[name];
}
}
It's pretty straightforward - you give it a reference to Main so that it can check children that are existent within it each frame.
The ObjectDefinition class is also pretty straightforward, acting purely as a repository for data that you want to keep track of on each child of the frame:
public class ObjectDefinition
{
private var _definition:Object = {};
public function ObjectDefinition(target:DisplayObject, ...properties)
{
for each(var i:String in properties)
{
_definition[i] = target[i];
}
}
public function property(property:String):*
{
return _definition[property];
}
}
You'll notice that the constructor accepts the target DisplayObject that will be defined, as well as any amount of properties you want to keep track of as strings (see above within Frame for implementation).
Once complete, you can chain the methods Main.getFrame(), Frame.define() and ObjectDefinition.property() to get properties of children that will exist throughout the timeline. For example, if you have a MovieClip with the instance name square on frame 15 and you want to get its width and height, you can do this within .ready() like so:
var square:ObjectDefinition = getFrame(15).define("square");
trace(square.property("width"), square.property("height"));
Of course this process is not ideal - but unfortunately it is the only way I can see that what you want to achieve is possible.
You have to listen to a specific event before you can ask for the information.
clip.addEventListener(Event.FRAME_CONSTRUCTED, frameReadyHandler);
clip.gotoAndStop(frame);
function frameReadyHandler(event:Event):void
{
clip.removeEventListener(Event.FRAME_CONSTRUCTED, frameReadyHandler);
var width = clip.width;
}
The Frame constructed event is the first of several events that gets dispatched. It gets dispatches right before the frame script gets executed. You could also wait for the on enter frame event.
You could add an event listener for 1 millisecond and test if the previousWidth you had stored is different. If it is, there you go. If not, its probably listening to the same frame.
A 1 millisecond timer is not such a big deal, stop it if you don't need it, resume it if you do, else, keep it running constantly. When it changes, dispatch an event or whatever needs to happen.
If you know the maximum size of the MovieClip, you may try this:
// Create movie clip
var movie :MovieClip = new MovieClipWith3Frames();
// Move to second frame
movie.gotoAndStop(2);
// Create bitmap witch magenta background
var bd :BitmapData = new BitmapData(200, 200, false, 0xFF00FF);
// Draw second frame
bd.draw(movie);
// Found the bounds of shape
var movieBounds:Rectangle = bd.getColorBoundsRect(0xFFFFFF, 0xFF00FF, false);
trace(movieBounds); // (x=42, y=15, w=32, h=33)

Sounds play delay wrong

I am writing simple metronome component using Flex + AS3. I want it playing 'tick1' sound after, for example, each 500 millisecond and each 4th time plays another sound 'tick2'. But actually delay between sound is not equivalent - sometimes lesser, sometimes greater a bit. I testing it on latest Chrome.
Here my code:
//Somewhere here button bound to the 'toggle' function
import flash.utils.Timer;
import flash.events.TimerEvent;
import flash.media.SoundTransform;
import flash.media.SoundChannel;
private var bpm:Number = 120; //2 bit per second, delay=500ms
private var period:Number = 4;
private var timer:Timer = new Timer(bpm, period);
[Embed(source='sounds/1.mp3')]
private var tickSound1Class:Class;
private var tickSound1:Sound;
[Embed(source='sounds/2.mp3')]
private var tickSound2Class:Class;
private var tickSound2:Sound;
private var trans:SoundTransform = new SoundTransform(1);
private function init():void {
....
tickSound1 = new tickSound1Class() as Sound;
tickSound2 = new tickSound2Class() as Sound;
update();
timer.addEventListener(TimerEvent.TIMER, onTimerEvent);
....
}
private function update():void {
timer.delay = 1000 * 60/bpm;
timer.repeatCount = 0;
}
private function toggle():void {
if (timer.running) {
timer.reset();
startStopButton.label = "Start";
} else {
update();
timer.start();
startStopButton.label = "Stop";
}
}
private function onTimerEvent(event:TimerEvent):void {
var t:Timer = event.currentTarget as Timer;
if (t.currentCount % period == 0)
tickSound1.play(0, 0, trans);
else
tickSound2.play(0, 0, trans);
}
I think there are two main reasons:
It is known that Timer object in Flash Player is inaccurate, delay between it's fires fluctuates.
Sound.play() method also introduces some delay before the sound actually starts to play, and theoretically this delay can fluctuate. The delay is especially noticeable in PPAPI version of Flash Player being used in Chrome.
There are several solutions. I would suggest one of these:
Use pre-composed sound of the whole metronome cycle (tick1-pause1-tick2-pause2) and just loop it using the second argument of Sound.play() method;
use dynamic sound generation.
The second option is more flexible but is more difficult to implement. Basicaly, you'll need to create a new instance of Sound object, subscribe to it's SAMPLE_DATA event and call it's play() method. In the handler you'll check event.position / 44.1, which will give you current position of sound generation in ms. Then, if you decide that it's time to play tick1 or tick2 sound, you'll call tickN.extract(event.data, ...), where tickN is tick1 or tick2 Sound object, or write the silence otherwise.
You can read more about dynamic sound generation here.
Also, notice that when you call Sound.play() it returns a SoundChannel object, which has the position property. Is it a position in ms of a sound that is being played (not generated) at the moment, and it is accurate. So, using this property, you can come up with the third approach: create a Sound object and setup a SAMPLE_DATA handler like in the dynamic sound generation solution, but write the silence (zeros) to the event.data object inside the handler all the time. This is needed to obtain a sound channel without actually playing a sound. Then, use high frame rate (60 FPS) and a Timer with the smallest possible delay (1 ms). Each time the Timer fires, check soundChannel.position to determine whether it is time to play the tick sound, and, if it so, just play it like you're doing in your example. This approach is likely to solve the problem of the Timer inaccuracy, but it cannot deal with the delay caused by tickSound.play() method.

Controlling FPS of a loaded swf

I'm working on a flash app where I load multiple swf's. But the problem is that they have different framerates (12/25/30). If I add 2 swf's they both play at 25fps. I found numerous topic about this but I can't get it to work (in AS3). Does anyone know why it doesn't work and how to make it working?
public class MainClass extends MovieClip
{
var loader:Loader = new Loader();
var request:URLRequest;
var mcMedia:MovieClip = new MovieClip();
MovieClip.prototype.setFrameRate = function(frameRate:Number)
{
var mc:MovieClip = this;
if (mc.tweenFaster != null)
{
Timer(mc.tweenFaster).stop();
}
mc.tweenFaster = new Timer(1000/frameRate);
mc.tweenFaster.addEventListener(TimerEvent.TIMER, timelineFaster);
mc.tweenFaster.start();
function timelineFaster(event:TimerEvent = null)
{
if (mc.currentFrame == mc.totalFrames)
{
mc.tweenFaster.stop();
mc.gotoAndStop(1);
}
else
{
trace(mc.currentFrame);
mc.nextFrame();
}
event.updateAfterEvent();
}
}
public function MainClass()
{
configureListeners();
request = new URLRequest("data/7/7.swf");
try
{
loader.load(request);
}
catch (error:Error)
{
trace("Unable to load requested document.");
}
}
private function configureListeners():void
{
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, completeHandler);
loader.contentLoaderInfo.addEventListener(Event.OPEN, openHandler);
loader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, progressHandler);
loader.contentLoaderInfo.addEventListener(SecurityErrorEvent.SECURITY_ERROR, securityErrorHandler);
loader.contentLoaderInfo.addEventListener(HTTPStatusEvent.HTTP_STATUS, httpStatusHandler);
loader.contentLoaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioErrorHandler);
}
private function completeHandler(event:Event):void
{
loader.content.scaleX = 550/event.target.width;
loader.content.scaleY = 400/event.target.height;
mcMedia.addChild(loader);
mcMedia.setFrameRate(12);
addChild(mcMedia);
}
In as3, if you're just looking to change the framerate, use stage.frameRate = 12; or whatever;
http://livedocs.adobe.com/flash/9.0/ActionScriptLangRefV3/flash/display/Stage.html#frameRate
In AS3, while you can use prototypes, you generally don't. I'd rewrite your setFrameRate function (which is badly named, shouldn't it be more.. tweenFaster, or matchFrameRate or something?)
I'd make a helper function like this:
package util{
//imports
public class TweenFasterMC extends MovieClip{
public var mc:MovieClip;
public function matchFrameRate(frameRate:Number):void
{
if (tweenFaster != null)
{
Timer(mc.tweenFaster).stop();
}
tweenFaster = new Timer(1000/frameRate);
tweenFaster.addEventListener(TimerEvent.TIMER, timelineFaster);
tweenFaster.start();
}
function timelineFaster(event:TimerEvent = null):void
{
if (currentFrame == totalFrames)
{
tweenFaster.stop();
gotoAndStop(1);
}
else
{
trace(currentFrame);
nextFrame();
}
event.updateAfterEvent();
}
}
Also, clean up your event listeners, that strong timer event listener will cause a lot of problems if you have a lot of mc's your applying this functionality to.
As far as I know all MovieClips in one flash player instance (sharing the same 'stage') will run at the same speed - there is no way to have two clips running at different speeds. So to adjust the speed you have to resort to calling gotoAndStop() on all MovieClips in the loaded clip at the right time - that won't be fun.
Code along the lines that quoo is showing will only work if the loaded swf contains just 1 MovieClip (no nesting) as far as I can see.
It seems to me that the most likely reason why this wouldn't work is that it requires every clip you load to be a simple, completely non-dynamic animation that loops for ever. If the loaded content is that simple, why not just adjust it to look better at 30fps? (If it's extremely long, a JSFL script could automate the process of adding extra frames.) Alternately, if the content isn't that simple, then attempting to change its timing by calling nextFrame from elsewhere is not going to give you what you want.
With all that said, if you're sure this is what you want to do but you're getting 0 as a return for currentFrame in your loaded content, are you sure they are AS3 SWFs? If they aren't, AS3/AS2 interoperation is a hairy subject that will warrant reading up on.
This is a real hassle, I've been scouring the net for an answer. I have particles following a path, and I want to change the speed that these particles follow the path dynamically, without changing the whole movie. just the particles movie clip.
I've tried greensock, but, that doesn't really work like i need.. i'd think there would be something that you can change dynamically for each mc, but, no dice.
the stage.frameset is only for the whole movie... argggggggg..... sucks..