Actionscript 3 :: When To Use State Pattern
Nov 15, 2011
I am working on a Flash project that initially had a simple template for the animation, but has grown to have different "states" with multiple templates (not under my control)Because of this, my update (ENTER_FRAME) loop is now starting to look a bit like this:
private function update():void {
switch (state) {
case "intro":
switch(layoutState) {
[code]....
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Feb 22, 2010
My app uses a MVC pattern to display images - obviously they need to get loaded first, so...
I have two states ContentFull and ContentEmpty these are both typed as ContentState.
both implement IContentState which has the following function:
function getContent(model:ISIModel):Sprite
In the view, VContentView I have the following:
override public function update(event:Event = null):void
{
if(icontent!=null){this.removeContentChild()}; //not really necessary, but there to make sure
icontent = model.getContent();
[Code].....
So the problem is - When the image is loaded - everything is perfect, when the image is loading, and ContentEmpty.getContent() is called the percentage value calculated from bytesLoaded/bytesTotal is initially set at 0 and displays just fine, but... it never changes to 5%, 10% etc...
I have put trace statements to track it incrementing, which it does just fine, I have followed it around in debug (using the Flash CS4 IDE), I have nuked the entire display list and then added everything back, I have instantiated a new counter text object as a sprite in a separate class, but it stubbornly refuses to do anything other than sit at 0 until the image loads and then the ContentState is set to ContentFull and the image displays.
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Nov 25, 2009
i'm trying to search a string for a particular pattern, and replace it with elements from within the pattern... for example..here's the given string...if you want to learn how to use regexp, {url===http://somesite.com, text===click here}.
the pattern...
{url===http://somesite.com, text===replacement text}
and the intended result...
if you want to learn how to use regexp, click here.
of course, i'll extract the url and do something else with it... i'm just wondering what the regexp is for that pattern, and how i can extract things from the results returned.
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May 12, 2009
I have a flash map that contains 51 movieClips, one for each state.Sample instanceName for a state (Alabama) would be: S_01
I have a XML record that contains specific info for each state.<stateID>01</stateID
I am trying to link the stateID's in the XML record to the state movieClips that make up the map.var stateInstanceName = 'S_' + stateID;
I was just trying to do a simple trace command to see if I could pull the _width of each state clip to see if I was linked up:
trace(mapInstance.stateInstanceName._width)
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Apr 9, 2011
It's my understanding that view states can be useful when switching the layout of design elements. Such as, a loading page as one state and the main application design in another state. Is this the correct use of them? Additionally, I have a label in State1 and I cannot figure out how to access that label via actionscript. labelID.text = "New Text"; is not working.
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Apr 14, 2011
I need to add a rollover effect to the disabled state of a Spark button. This way, users can rollover the button and know why the button is disabled.I think I would have to override ButtonBase's getCurrentSkinState. Is there anyway to test if a mouse cursor is over a disabled button?
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Mar 30, 2012
I'm using Flex 4.5 and trying to take advantage of the new state groups feature. I have two States (call them readType1 and readType2) that both belong to the same stateGroup (call it readOnly). There are several places where I'd like to do something based on the current state, and it would be the same thing for the two read states. [code]...
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Jul 25, 2009
In my air project i used current state size is width="441" height="358" . i have link button like Singin then move to singin state (currentstate='singin')
<mx:State name="signin">
<mx:SetProperty name="height" value="616"/>
<mx:SetProperty name="width" value="919"/>
So application resize into 616,919 . After that function finished move to current state like(currentstate='') But size not be changed . How can i set the size for current state?
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Jan 27, 2010
I want to fade all the elements of the next state when transitioning from any state.I tried different things but I can't get it to work. And I don't want to manually add transitions for every state.
Something like:
<s:Transition fromState="*" toState="*">
<s:Fade target="*" duration="500" />
</s:Transition>
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Mar 25, 2010
In my view I have a welcome screen:
[Code]...
Which is a pretty small component and I have panelContainer:
[Code]...
Whilst the user is reading the warm and fuzzy welcome note in the welcome state I want to be creating the big expensive panels state so taht when we switch there is no delay. Before the panels state is set panelView is null but I presume there must be an IDefferredInstance floating around somewhere that I can use to kick off the creation of the view. How can I get hold of it?
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Oct 4, 2008
I am trying to get converted to Actionscript 3 from AS2.In old versions of flash, you simply placed the sound in a keyframe inside the button on the over or down state. Worked fine, but not anymore.I guess the sound must be set up with actionscript and a listener.I understand linkage. how to make one sound on the over state and a different one on the down state?
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Sep 3, 2011
i curious how to access state in flex "Current State" from flash movie clip??..so far i make movie clip in flash and it has button inside with name " button" and i put this flash file into flex in "state 1" flex application..i want to make event handler for "button" that trigger changing state from "state 1" to "state 2" in flex application..and in flex application i do not write anything because i have no idea how to deal with this stuff..
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Aug 24, 2011
I've been using the Regular Expression Explorer but I still can't come up with the right pattern.
[Code]...
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Sep 26, 2010
I can't understand why should I even use the Singleton pattern in ActionScript 3. Can anyone explain me this? Maybe I just don't understand the purpose of it. I mean how it differs from other patterns? How it works? I checked the PureMVC source and it's full of Singletons. Why are they using them in the View, Module, Controller?
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Mar 21, 2011
I'm working with some Action Script file and I found this:
var pattern:RegExp = /.*//
var results:Array = pattern.exec(cardImageService.url);
I know it's a regular expression and that exec() is looking for my pattern in my string. But how should I understand this pattern?
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Sep 29, 2010
I remember seeing someone a while back using actionscript a method to draw a pattern. I thought it was a really interesting take on as and kept in the back of my head for when the possibility came up.
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Feb 26, 2010
If I place a pattern or object over a 3d object created in CS4, will it affect it by warping it in any way.I'm looking for a way to push a pattern over a 3d object, for the pattern to look like the 3d object is "under" it.
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Nov 12, 2009
I would like to create a repeating pattern using a bitmap from my library as a background. I would like the pattern to always fill the stage area when the brower window is scaled. The code below works, but I think it may not be the most efficient way to handle this. Seems to be a little slow.
function onResizeStage(evt:Event):void{
backGroundSprite.graphics.beginBitmapFill(pattern(0, 0));
backGroundSprite.graphics.drawRect(0, 0, stage.stageWidth, stage.stageHeight);
backGroundSprite.graphics.endFill();
}
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Jun 12, 2010
How can I find a given bitmap pattern on a bitmap ( loaded jpeg )? Is there any flash classes / functions for this purpose?Here is the sample image and has 4 patterns.What I want is to get the bounding informations of the 4 patterns on the image ( x , y , width , height ).
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Aug 9, 2010
Is there any inbuild function to find out the last occurrence of a string pattern in a string in actionscript.
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Jul 3, 2011
I'm looking to get some good books on design patterns and I'm wondering what particular pattern you'd recommend for a Realtime Strategy Game (like Starcraft), MVC?. I'd like to make a basic RTS in Flash at some point and I want to start studying the best pattern for this.
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Oct 3, 2011
Just curious. TweenLite/TweenMax is a very common animation library, and I was wondering how someone would classify the design pattern used in TweenLite.For those of you unfamiliar, here's some example code from their website:[code]
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Jan 30, 2009
I plan to have the swf fill the browser window, and this should work fine for that. When people click on a button, I want the view to "zoom in" by scaling to 200% and setting the x and y coordinates appropriately.How can I do this with the repeating pattern, because the way I have made it is a series of movieclips. Is there a better way to make it so it is just one movieclip I can control the scale and position of?
ActionScript Code:
tileWallpaper = function () {
tileWidth = 200;
[code].....
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Feb 11, 2009
I have a model which manages all of my data (DataManager)
I have a series of view classes, which manage stage instances.
I would like my view classes to listen for custom events within my DataManager class. So, for example, when all of my data files are loaded, I would like to have a custom event dispatch. All of my views will have listeners within them, waiting for events from the DataManager to trigger functions within.[code]...
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Jun 12, 2010
How can I find a given bitmap pattern on a bitmap ( loaded jpeg )? Is there any flash classes / functions for this purpose? Here is the sample image and has 4 patterns.
What I want is to get the bounding informations of the 4 patterns on the image ( x , y , width , height ).
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May 14, 2011
I started 2 days ago programming in as3, so I'm building a website and I want to create a pattern for my background.The pattern is a bitmap image 300px X 300px and I want to repeat it along the x axis and y axis of my document.My stage is 1280 x 800)And I want also to have the pattern to fill all the screen in case of the user's screen become larger than the resolution of the stage that I'm building the website on.
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Feb 19, 2007
a little foggy on passing variables to the Constructor from a Singleton instance. Could someone enlighten?
From timeline:
Code:
var c:Calculator = Calculator.getInstance(5,20,30);
[Code]...
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Mar 23, 2007
I have an array with 3 numbers [896,813,734]. Imagine they are hits in milliseconds. Is it possible to play a sound like a beep or something precisely? example: 1st beep =896, 2nd beep = 813, 3d beep =734
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Apr 26, 2009
I wanna ask about the usefulness of this decorator pattern.Decorator pattern allows user decorate an item with different unique things.But what if there are 800 items to decorate the main component?That would lead to 800 subclasses under abstract decorator.Would XML as database shine in this area?Whats the point of having decorator pattern in the first place when we could just use arrays and a storage for item information such as prices in XML?
Arrays can do all the things that decorator can do, and further more uses a few XML easier to manage compare to 800 classes, although its against the concept of "close for modification"
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Apr 29, 2009
Is there a way to extract children from an XMLList where the node name of a child contains a string pattern?For example :
<record>
<XblahX/>
<cow/>
[code]......
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