I'm using sensors in a Box2D project. On a collision with a sensor, I'd like to know the sensor's position in the world. I'm detecting the collision with a contact listener, but the sensor's position is always 0 0.
From my code: (edit, added the whole class)
public class MyContactListener extends b2ContactListener {
public var onSensorEvent:Function;
override public function BeginContact(contact:b2Contact):void {
if(contact.GetFixtureA().IsSensor()) {
var ud1:GameEntity = contact.GetFixtureA().GetBody().GetUserData();
[Code] .....
I have downloaded Box2d ([URL]) and created a project that looks like this: [URL]. catalyst is the green cube and it has the base class "shapes.box", it is inside "world" which has the base class "wck.World". What i want to do is to add another "catalyst" from the library inside "world" when i click on add_btn. I tried to accomplish this by this code:
[Code]...
Symbol 'buttons', Layer 'Actions', Frame 1, Line 41061: Call to a possibly undefined method addChild through a reference with static type Class.
I need to click over an object in Box2D. Need to know which object i have clicked, and to delete that object. How could i know, which object i have clicked?..
I posted earlier about getting a zoom effect which was solved by putting the content within 2 containers: the parent container to center the zooming & the pan container (child) to be panned on drag, however when I drag the child a copy of the original remains for some reason?basically I have this to set up the containers:
ActionScript Code: ParentContainer = new Container(); addChild(ParentContainer);
I have 2 classes, Display holds the currently selected Component:
public class Display { public static var selectedComponent:Component; }
Component has an ID string and the selectedComponent variable is set on click:
public class Component extends MovieClip { public var id:String; addEventListener(MouseEvent.CLICK, function() {
[Code]...
Removing the selectedComponent variable type so it reads public static var selectedComponent; removes the conversion error and seems to change the ID variable but it appears to only be a copy of the object.
I'm trying to trace the path of an object by using setPixel on the object's position every frame in a BitmapData/Bitmap pairing. These pixels aren't showing up normally and I suspect I have a fundamental misunderstanding of the BitmapData class. Here's what I'm doing:
public var contrailBase:BitmapData; public var contrail:Bitmap; private var contrailColor:uint;[code].....
Using this code, the red pixels don't show up. If I initialize contrailBase to 0xFF000000 instead then I get a black screen on which the red pixels DO draw, but I need the bitmap to be transparent except for the contrail. What am I doing wrong?
I'm stuck thinking about the best way to go about setting a line segment's position, I have a class Line(length, angle, previous) being called from a class Polygon. Right now I have:
public class Line extends Sprite { public function Line(length:Number, angle:Number, previous:Line = null) { if (previous != null) { this.x = previous.end.x;
I have three objects in the main scene (so far), one of them is draggable (up and down only), then the animated one that moves downwards and the start button (activates the animation). So I've been trying to figure out how to script the collision detection for the first two? The collision should take place not because I dragged the slider onto the animated block, but because the falling piece hits the slider after I pressed the start button.
I m working on learning how to bring XML info into Flash. Eventually Im trying to pull a bunch of data about Interstate 80 drug and cash stops for an interactive project to go with a big centerpiece story for the newspaper I work for. I ve been through a [url]..... tutorial three times now.I made a dataset, bound it to a datagrid and attached the datagrid to the xml file. When I run a trace,I can see in the output window that the XML is being pulled in. But I must be doing something wrong nothing is being displayed in the datagrid. It should bring in the first three items in the code:
This has been a long-standing curiosity of mine, and I haven't gotten around to profiling to find out, and haven't seen it asked yet (for AS3):Let's say that I have a class:
class MyClass { public function myMethod():String { return "some return value";
Is there a way to make an static method act over an object of its class that is already on the stage, without using the keyword "this"? I mean, like "generic object of this class: do what I'm telling you to do, wathever your instance name".My goal is to create an method that get called by any object of this class, based on the changing on the value of an external variable, but since I cannot use the "this" keyword to reffer to each instance, I could not figure out a solution.
I'm currently writing a feature for an interactive periodic table which dynamically displays the name of the element and other properties when you hover over the element. I have thought of three ways to do this and I am wondering which is the best, memory-wise and speed-wise, for loading this information.
make a class with an array ( new Array("hydrogen", "helium", "lithium",...etc.)), instantiating it, then accessing the info with object.arr[i] make a class with a static array (otherwise, same as no.1), importing it, then accessing the info with class.arr[i] put the information into an external xml file and accessing it from there. The 3rd method seems excessive as you have to go through the hassle of adding event listeners for URLloader every time. Is there any difference between the 1st and 2nd way? (What is happening in terms of memory when you are importing a class - is the entire array added to memory?)
I have a SendData class that sends form info to a php script. It is a static class that does not extend anything.
I want to be able to dispatch an event if there is an error, or when it gets info back from the server. I have a custom event class that I have been using to dispatch events like this, but I have only used that in displayObject extended classes.
The problem is, it seems like something has to be a displayObject based class to dispatch events. I know there must be a way to do this, but I'm having trouble finding it in searches.
Basically I have 2 classes, A and B. B derives from A. Inside A, I declare a static variable/constant to the class of B. When I run the program, I get a null object reference error, with the line pointing to the class declaration of B, i.e.
Code: public class B extends A
For reference, these are the 2 classes:
Code: package { public class A {
[code]...
Also, this error only occurs when the variable is static. If it's just a normal variable it works fine, i.e.
Code: private var OTHER:Class = B;
If I change the static variable to point to a different class, it's also fine, i.e.
Code: private static var OTHER:Class = Main;
I can probably work around this, but it's a bit of a pain in the ass. Anybody know what's causing it, or is this a Flash bug?
I want to make a static function that I can use in all the custom classes.It should be some kill(); function that would remove the object from the stage as well as removing its event listeners. I made it in Document class, and it didn't work. Here's the code:
ActionScript Code: public static function kill(e:DisplayObject) {[code].....
I get this error when compiling an AS3/Flex project: Error 1118: Implicit coercion of a value with static type Object to a possibly unrelated type HRPeople I've clearly declared dataHR_A to be of class HRPeople, and I've initialized all of the arrays inside the HRPeople.as file. Not sure why I'm getting this error.
I recently did a quick demo on my site of Box2D (Box2DFlashAS3) with source code. Its basically just the HelloWorld example from the v2.1a distribution, but with a few tweaks. The most notable is that my version does not require a Flash FLA file to compile and run, its pure AS3. Simple and a good base to build on:
1. Static var(an Array) stored in a class. 2. You create a variable reference to the static class in a separate class. 3. Splice some items from the reference variable in the separate class. 4. Trace the static class and the items have been removed from that too. 5. Verify several times. 6. Get confused. 7. Post on Kirupa.
Ok, so I have a bit of a mess here (Which I'm probably not doing right anyway, which could be my problem...). I have a document class, I'll call it as Body.as, that creates an object from another class known as Headgear.as. There are also other objects created from other classes, or will be in the future. Now, amoung all this, Headgear.as and all of the other classes Body.as will use to make objects require the use of dragging functions (starting and stopping dragging). On stopping drags, position checks are then made to compare a particular hidden movieclip with the dragged MC.
To try and save myself some hassle (from making the same functions over and over to ensuring that when the objects are created I don't need to send a complete crapload of variables just to ensure the position checking function would work), I had the functions for the event listeners (Which are set-up on the draggable MCs in Headgear.as) just direct to functions in Body.as
hey guys i have 6 moveable objects, what i want is to be able to click a button and a text field appears that displays the x and y co-oridinates off each object, is this possible and if so is there a way also i could have another button where the user inputs the numbers he wants from x and y and the objects will go to that posisition
I am wondering about the x, y position of objects. I place a shape at a the bottom of the stage, but then when i check its x, y coords its at 0, 0. Is this correct? so when i start to move it it starts from where i want it on the stage (at the bottom) but the x,y coords are starting at 0,0 also.
I'm making a game like Arkanoid and to move the ship with mouse, I'm using the following code :
var mousex:int = costume.stage.mouseX; if (mousex < paddleWidth/2) mousex = paddleWidth/2; else if (mousex > PhysiVals.STAGE_WIDTH - paddleWidth/2)
[code]....
Everything's going fine there! The paddle is moving the way it should! The problem is I want a little inclination towards the direction its moving and when it stops moving the angle of inclination should become zero.
