I'm building a small game. On my document class i create a instances of the class Character and Level with the following code:
//add the Level
level = new TileGrid();
level.y = 100;
[code].....
on my timeline i create a new instance of the class FirstClass with the following
code:
var firstObject:FirstClass = new FirstClass();
the class looks like this:
package {
public class FirstClass extends MovieClip {
public function FirstClass() {
[Code]....
On my timeline i would like to acces the x position of the object tempObject
If I create a class and set up one property which is a variable initiated at the start of the class but not within a function or a constructor and I reference the property from the .fla in a for loop as:Book is the class and myBook is the new object.
myBook:Book = new Book(); // (fla script).
for(var prop in myBook) {
trace(prop);
}
[code]...
The trace does not return anything. However when I include myProp (the class variable) in a function (other than Book function) and call that function from the .fla then the trace works and I can see myProp. Do I need to include Class variables in called functions (methods of the Class) in order for them to be properties of the Class?
In actions script 3.0 I would like to retrieve the class of two instances and then compare them. Is there a way to know what class an instance is made of?
View 1 RepliesI'm having a little trouble with the properties of an instance of a specific class. Here's and example of the code I am using:
Code:
package {
import flash.display.MovieClip;
import flash.events.*;
public dynamic class Circle1 extends MovieClip {
private var _root:Object;
[Code] .....
This is in the class code for Circle1. Now here is the error that is being displayed int he Output Box when I try to run the file:
Code:
TypeError: Error #1010: A term is undefined and has no properties.
at Circle1/eFrame()
Here's the code that creates the two class instances as children on the Main Time Line:
Code:
if (spaceDown) {
var newCircle1:Circle1=new Circle1();
addChild(newCircle1);
} if (enterDown) {
var newCircle2:Circle2=new Circle2();
addChild(newCircle2);
}
EnterDown is a defined variable for the key press of Enter, and spaceDown is a defined variable for the key press of Space.
I am completely new to actionscript although I do come from a OOP background. I have been asked to trial Flash and Actionscript 3 in particular - so I do come with a few preconceptions on how I expect actionscript to behave. I have a problem I donot understand. I have created a new class and to test it I use a simple test harness in the form of a .fla file.
The issue I have is when I create a new instance of the class and assign it to a variable, subsequent background changes to that instance of the class are not 'picked-up' when referenced through the variable. I would expect that given instance of class could be assigned to many different variables and any updates using one variable would accessible using any of the other variables.
[code]...
Is it possible to rename a class-instance that has already been created with a specific name?
For instance:
// Step 1) Create and name class-instance
var myClassInstance_1:myClass= new myClass();
// Step 2) Change name of myClassInstance_1
?????
I have this main (document class) in a Flash project:
package {
import flash.display.MovieClip;
import flash.events.Event;
[Code]....
Now: if I pass a reference (ref) of the main class to Other and I add clippo as you can see in the first case, I can reference the movieclip clippo from the main (getChildAt(0) is "clippo" from the main). But, is there any way to use the second method (no ref) and do the same from the main class? I can see clippo onstage when Other creates it but I can't understand where clippo "lives" into the DisplayList.
How do you access an instance of a symbol created and added to the stage through the addChild(); method, from a different class?
View 3 RepliesI've been playing around with custom classes. My objective was to create a custom class (Testing) that would create a box when an instance of the class is created. I've tried three different approaches, however only (3) seems to be showing up. I'm just curious why (1) or (2) doesn't work?
Also is there a better approach than (3)? Since at the moment it's been created on _root. I hope the box can only be accessible through the instance. Since I'd like to incorporate the whole idea of public, private, encapsulation, etc.
[Code]...
How to acces remote shared object from other class?
I have
package {
import flash.net.*;
import flash.display.*;
public class Main extends Sprite {
[Code].....
I would like to add some data or modify shared object. How can I acces _sharedBoardObject from another class? Or maybe I need to connect to "sharedBoard02" directly?
I am wrapping my brain around OOP in AS2. I am making two posts on two different subjects. My question here is: when should I use local instance variables, and when should I attach new properties to the instance object? (Feel free to correct my terminology.) Let's say I have a class for a scrolling background, which scrolls when I mouse over its edge. I want to put these values somewhere:
1) How wide is the border in which a mouseOver makes it scroll? This is basically a semi-constant I set it up once and keep it the same, unless the user changes it in an options menu to make the border wider or narrower. Call this scrollBorderWidth.
2) How fast is the background scrolling now? I want to track this so I can smoothly change the scroll speed over several frames. This is often changed. Call this scrollSpeed.
It seems I have two ways I can store and access these values and darned if I know which is better practice. METHOD A: Make them local variables in the class, so the scrolling background instance has them as local vars. I set them up thusly:
[Code]....
I have a base class which is being created via remote_object [RemoteClass alias] from the server.I have other specialized classes that are derived from this baseclass, but serialization with the server always happens with the base class.The base class has meta data that defines what the derived class is, for example
[RemoteClass (alias="com.myco...')]
public Class Base
{
[code]....
When an instance variable is constructed by a constructor method, why do you need to refer to the current instance variable being created when its the only one being created? I understand assigning an expression to it but why name it "this." when it is the only object that the constructor is building? Does it have some hing to do with being able to naming that object in the Local Variable? In other words am I creating a generic object that will be named in another class?
View 7 RepliesI'm using a library that has a function that returns an instance of some class Engine.
I'd like to tack on some interfaces to Engine, so I subclass it class InterfacedEngine extends Engine implements AwesomeInterface. but when I change the code that uses the classes from this:
var engine:Engine = generateEngine();
to this: var interfacedEngine:InterfacedEngine = generateEngine();
It gives me a runtime error (elision mine):
TypeError: Error #1034: Type Coercion failed: cannot convert ...::Engine@1bc2bf11 to ....InterfacedEngine.
What about AS3 classes am I misunderstanding?
I have to admit I pretty much ran away from Flash when AS2 came along and only used it for animation purposes over the last 5 years.So I'm having a major crash course in AS3 in Flash CS3 and I'm not enjoying it one bit. I'm getting maybe 10mins of finished work per hour as I try to figure out the limits and rules of AS3. Quite often it seems that AS3 simply can't do what I want it to. Anyway: Characterchecks.as is the main class and it loads a bunch of XML into four arrays. The file starts like this:[code]If I trace the value of, say, cc._Categories from the main FLA, it's empty. I'm guessing that the next line of AS in the main FLA doesn't wait for the previously called function to complete? (This may tie in to my next problem)My next step is that I want to display various things based on the data in the array. I have another class, Display.as which will hold all the functions to create the items on display. I thought it would be best for these to be a separate object. I wonder if I'm right?
So I declare an instance of Characterchecks in the main FLA and call it cc, and then run the functions to populate the arrays... Now I create an instance of Display and call it cd. How can I get functions in cd to see the values of the variables in cc? And if the main timeline can't tell that the functions aren't finished filling the arrays, how is cd supposed to know?I might be asking dumb questions, or maybe I'm doing things ***-backwards, I don't know. I'd appreciate any help, I really would. This whole thing has me at the end of my tether... being the most technically advanced person in my circle of co-workers and web design friends means I have no-one to explain why things need to be done a certain way or what the best way is.
I'm creating a little game - The player controls a character that follows the mouse. Pigs run away from the player, and the player has to get them all into a pen. To make the game a little more difficult I'm trying to add an enemy - wolves, that attempt to perform a 'hunt' method every x seconds. This method sends a reference of the wolf instance to Main (my document class) and Main then loops through the pigs on stage to see if there's any nearby. Now as far as I know this works - my problem is I'm unsure how to send the pig instance reference back to the wolf that called the hunt method, so it can then 'target' the pig, and then attempt to pounce on it.
This is my Wolf class:
Code:
package
{
import flash.display.MovieClip;
import flash.events.Event;
[Code].....
I am having trouble trying to retrieve properties for a container_mc that dynamically creates content upon loading. The container_mc is creating text boxes from an array and so its _height is dependant on the array.length.
So how do I do this without getting 0:
Code:
//after loading
trace(container_mc._width);
well like the title says, ho can i set the properties of a mc's created with createEmptyMovieClip , getting a real nag , have tried all kind of things , for loops , etc.
for (i=0; i<=10; i++) {
this.createEmptyMovieClip(["rondje"+i], i);
lineStyle(1, Black, 100);
[Code].....
I have this dynamically created thumb gallery from a XML[code]...
Is there any way to get _x and _y properties of a previously created thumb (e.g. k-1) and use them in maths of a position of current thumb??
well like the title says, ho can i set the properties of a mc's created with reateEmptyMovieClip its getting a real nag , have tried all kind of things , for loops ,
for (i=0; i<=10; i++) {
this.createEmptyMovieClip(["rondje"+i], i);
lineStyle(1, Black, 100);
[code].....
I try to get acces a property by click on a dynamic created Moviclip.
function finishLoading(evt : Event):void {
// Handle XML Settings
XML.ignoreComments=true;
[code]....
how to access the properties of the movieclips which are created during runtime.
Ex:
var dotCount:uint = 0;
for(var i:uint = 0; i<=10;i++)
{
var circle:MovieClip = new MovieClip();
[Code]....
How can I access a property (say .alpha or any other property) of "circle6"??
Quick question. I have been Googling this all morning, but it's either not there, or else written in a way that doesn't register. I am inclined to believe the latter, as this seems like it should be something completely trivial to me. I made a small Flash file using AS 3.0, and this is the first time I've really been able to stick to the OOP way of doing things and not hack together a mix of stuff from the timeline to get around not having everything work in the classes.
So I'd like to keep it that way, but one thing is eluding me: I can't call a method of an instance of another class (than the one I'm calling from) without resorting to "DocumentClass(root).instanceName.method." Intuition tells me there has to be a better way of doing this (like, without having to reference the document class every time I call another class instance's function; and CERTAINLY without having to use the word "root" - that just seems so Flash 5 to me. Does anybody have a better way of doing this that they can share?
[Code]....
I'm creating/adding elements in my item renderer but from some reason you cant access their specific properties, you can only change the general properties. I created a LABEL component but when i do LabelName.font , nothing happens, its like flex doesn't recognize that this is a LABEL. [code]...
View 2 RepliesI am trying to use the duplicateMovieClip event to create a row of custom movie clips dynamically and I would like to be able to set the _alpha properties on each object depending on an event i am firing in a different movie.[code]...
View 4 RepliesI need to dynamically bind properties of components created at runtime. In this particular case please assume I need to use bindProperty. I don't quite understand why the following simplistic test is failing (see code). When I click the button, the label text does not change.
I realize that there are simpler ways to go about this particular example using traditional non-dynamic binding, but I need to understand it in terms of using bindProperty.
<?xml version="1.0" encoding="utf-8"?>
<mx:WindowedApplication xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute" xmlns:ns1="Tools.*" minWidth="684" minHeight="484" xmlns:ns2="*" creationComplete="Init();">
[code]....
the variables listHeight and maskHeight won't populate. they come up 'undefined'.
here's the code essence:
Code:
xml.onLoad = function(success:Boolean)
{
var stuff:Array = xml.firstChild.childNodes;
if (success)
[Code]....
I created a movie clip symbol with a user interface in it, using the standard components. It contains various components that I draged on the stage. I named the instances (e.g titleLabel). Then I created an ActionScript class for that user interface. Under the linkage properties of the symbol I specified that class. In the class itself, i declared the attribute "var titleLabel:Label". I thought this would be the same instance from the symbol? But: Trying to set the text of the Label AFTER the movie was dynamically added to the parent does not work. I cannot access any properties.
Here is the example:
My Class for the user interface:
Code:
import mx.controls.*;
class Information extends MovieClip {
var titleLabel:Label; //this is the same instance name as in the symbol
[Code].....
I am using this code to iterate through the contents of a movieclip which contains instances of "alien2" - my alien. I have each alien in a movieclip called squadron1. They all have their own layer and follow a motion path to recreate the attack sequence in Galaga. I can add action script to them by right clicking on them, but when I do this test below I can't call any MovieClip methods on them. It is my intention to add a function to each one via code to make it detect bullets, look for the player etc, but at the moment all I can do is add the code to each one individually on the stage.
Code:
var target;
for(var item in _root){
if(_root[item] instanceof MovieClip ){
target = _root[item];
[Code] .....