ActionScript 3.0 :: Null DropTarget?
Jun 14, 2009
I'm testing out some different things right now and I'm trying to make a box, that, when one of two balls is dragged and dropped into it, causes the correct color text to display (i.e. redBall displays "RED", blueBall displays "BLUE" when dropped into box).I've gone through a few different ways of doing this, but now I"m trying to use dropTarget.I'm finding that when I drop it into the box using the code below, everything works fine, but if I drop is anywhere outside the box, I get an error stating "Cannot access a property or method of a null object reference."I'm assuming that I'm just wording this second dropTarget conditional statement (if (e.currentTarget .dropTarget == null)) incorrectly, but I'm not sure how to fix it.Here's the code of the dropping function I'm using:[code]....
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Nov 29, 2009
in AS2 it was
Code:
on (press) {
startDrag(this);
}
on (release) {
[Code]...
i want "x_mc" to droptarget on "y_mc" and use an action
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Feb 18, 2009
I'm having a little problem of which I'm guessing the solution isn't that hard.. but I just can't put my finger on it...
The thing is: I have got 5 movieclips which are able to drag and drop. Next to that I've got 20 containers which are all droptargets. The movieclips are able to be dragged and then dropped on a container. So far so good. But what I want is that when I drop a movieclip on a container which already has a movieclip dropped on it, the first movieclip gets removed and the second movieclip is dropped on the container. Or you could also say.. that the second movieclip replaces the first movieclip. This instead of the fact that a container has multiple movieclips dropped on itself.
[Code]...
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Mar 31, 2010
I have been going nuts all day trying to figure out why my 'drag and drop onto a target' movie doesn't work. I have a movie clip to drag onto another movie clip which is the target.when the first clip is dragged onto the target clip i want the target clip to gotoandplay(2);
the clicking and dragging and stopdrag() etc works, but when I drop the piece over the target, it just does nothing.here is my code on the MC that is being dragged:
on(press){
startDrag (this, true, 135, 95, 700, 440);
}
on(release){
[code]....
btw, I am using actionscript 2.0
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Sep 15, 2009
I made a flash site and one of the pages has drag and drop functions with drop target actions, so that text appears once dropped onto a target.It works fine but when I have it loaded inside an external editor, the drop and drag still works but the drop target function stops working.
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May 19, 2004
How can I replace this code to use dot syntax instead of slash?[code]...
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May 19, 2004
How can I replace this code to use dot syntax instead of slash?
Code:
square.origX = _x;
square.origY = _y;
[code].....
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May 5, 2009
I'm building a grammar excercise where I've got 24 drag'n'drop cards (movieClips), that I can drop into two 'slots' or dropTargets. Each card has its corresponding card, and when the right cards are dropped in the dropTargets, they get a 'well done' message, and a button appears so the user can go on to matching the remaining cards. When the button is clicked, I want the dropped cards to simply disappear.
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Aug 6, 2009
I'm setting up some objects connected to classes onto a movie clip dynamically, and although I'm setting the name fine, when I drag another movie clip on top of it and trace for droptarget.name I always get something like "instance01" what am I doing wrong?
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Oct 10, 2010
How can I create through actionscript (i.e. not drawing it on the stage) a drop target that works? For some reason I can't work it out. I tried the following code (it looks reasonable), but nothing happens when I drop the square_mc on the target[code]...
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Mar 10, 2009
is there something similar to currentTarget with dropTarget?Right now dropTarget will get me the "lowest" DisplayObject possible, but I'd like to get the top-most. I cannot use parent as my objects are of different nesting depths.
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Feb 21, 2010
I have a drag and drop based SWF. When I pick up a MC and move it , when I put it down it gives me the MC it is on.However there are times when the returned MC isnt the intended MCEg. The top of the MC is *just* on top of One MC but the mouse pointer is over another (the intended spot), So I am trying to find out if there is a way to return the MC that the mouse is over, rather than the MC's top left corner.
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Sep 28, 2011
I am teaching with an basic AS3 programming class and we are looking at drag/drop. I cannot get the following code to work without a 1009 error when not dropping the ball into the inventory box.What we are trying to accomplish is creating an inventory for an adventure game.
Code:
function ball_drag(event:MouseEvent):void {
ball.startDrag();
[code]....
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Oct 1, 2010
Not sure the best way to do this. I have a class we will call DropActivity, here is the code
[Code]...
when the stopDraggingMe() method is called from another object (code shown below) I need to see all the objects on the stage to see what objects on the stage my currently selected movie clip is over and assign it to the dropCheck.checkAgainst method (that will be checked against an array to see if it can in fact be dropped, if so set the canBeDropped value to true and therefor run the .stopDrag() ). I have read using root is not a good coding practice in AS 3.
[Code]...
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Feb 20, 2011
I want to drag a object using a animated hend (MovieClip) and drop it in a holes. I cannot use dropTarget method to this because when i trace(object.dropTargat.parent.name) output shows "hend" only.
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Jan 10, 2005
I have a draggable button , and I need to go to "scene1" when the draggable button is dropped into a droptarget ("dentro1") But it doesn�t work with this action (gotoAndPlay), it works with load movie, or get Url. It only goes inside de droptarget (called "dentro1") This is the code of the draggable button:
on (rollOver) {
startDrag(root_draggablebutton, true);
}
on (release) {
[code]...
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Aug 19, 2010
I have a movie clip which i use as a drop target. And I have four additional movie clips which can be dragged and dropped into the droptarget movie clip. But when I place a movie clip into a droptarget and I drop the second one too, the droptarget for the second one becomes the first movie clip but not the actual droptarget movie clip.
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Nov 14, 2002
I have a problem with _droptarget. I created a puzzle in witch the target works. Now I want to load the puzzle into an other movie, lets say in _level100. Everything in the puzzle works, except for the _droptarget.
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Apr 9, 2010
Unfortunatly im having to extend to more draggable objects. So they will be within another movie clip so i can have them scrolling. After making the scroll, the draggable objects dont register on the droptarget as they are within another movie clip. Below is i think the part of the code that needs to be changed so the draggable objects know where to find the drop target.
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Dec 19, 2009
I have begun on a list: My reference is null!Stage is null! Convert this code from as 2 to as 3 for me! Crossdomain policies are in the way of my cool idea Dynamic property names I need to use stuff on the parent! I don't want my children to scale when I scale the parent! Classes vs instances. Mod note: I do not want this topic pinned, we will use a fresh topic once we have agreed to the content.
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Jun 12, 2010
I am creating Dynamic Destinations
MessageBroker broker = MessageBroker.getMessageBroker(null);
MessageService service = (MessageService) broker.getService("message-service");
MessageDestination destination = (MessageDestination) service.createDestination("Group1");
[code].....
But I am getting Null Pointer Exception
MessageBroker broker = MessageBroker.getMessageBroker(null);
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Jul 18, 2010
the script i wrote is working fine. but the script attached to the flash player which i have no control over is throwing a script error (im using IE8).how can i fix this? if i run it locally there is no error.
'null' is null or not an object
try { document.getElementById("").SetReturnValue(__flash__toXML(function() { return document.location.hostname; }()) ); } catch (e) { document.getElementById("").SetReturnValue("<undefined/>"); }
but this is from flash script and i dont have control over it. it just say JScript - script block.
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Aug 15, 2011
I have create a menu but when clicking on menu so that it shows, I get an error on the line because of the line "myMenu.show(null,null)". See function below:
private function createAndShowmyMenu():void {
myMenu = Menu.createMenu(null, myMenuDataProvider, false);
myMenu.labelField="@label"[code]........
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Jul 28, 2009
sometimes I remove child and trace it afterwards and it outputs null although I havent yet set it to null, why is that? and do I need to set it to null also in that case?
Code:
trace(holderArr[loadedThumbs].getChildByName("photo_bg"));
//[object MovieClip]
holderArr[loadedThumbs].removeChild(holderArr[loadedThumbs].getChildByName("photo_bg"));
[Code]....
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Sep 15, 2010
I have the following piece of code(part of a much bigger program). I this code I am re-using a motion that has been previously used successfully. The trace stmts are used to identify the exact location of the error and the error conditions as best I can.[code]
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Mar 6, 2012
When you cast null to an object using Object(null), the result is an object.When you cast undefined to an object using Object(undefined), the result is an object.But saying null as Object or undefined as Object remains null.Why is this? I can't find anything in the documentation about this.
The objects that result from these casts can have properties set on and read from them. It's as if the cast created information, or removed whatever special information the null and undefined values have. But there's no indication in the AS3 documentation that the null and undefined special types are actually objects.
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Aug 7, 2010
I created a Sponsorbar which dynamically adds sponsors according a XML script.
ActionScript Code:
for each( var imgPath2:XML in xdata.img )
{[code]...........
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Aug 11, 2011
I have 12 movieclips on one layer, each are draggable some perform an action some dont. The problem is the levels when they are dragged some are above the other clips on the same layer and some are below. I want the dragged clip to be above all clips. Also on the stage there are text boxes over the "droptarget" they have to be on a layer above to be visible. So therefore the area where the text box is does not allow the dragged item to perform its task, the "droptarget" function does not work.
holder_mc11.onRelease = function(){holder_mc11.stopDrag();[code]...........
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May 11, 2005
i want to make flash drag a ball onpress and if its onrelease and if its on the Suquare movieclip it should stop draggin. my code is like this
[Code]...
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Aug 21, 2010
I have an issue where removechild won't infact remove a child. I think its something to do with my dropTarget.parent issues. The concept of the code is that you drag a source onto a destination. When you drop the source onto the destination you will get a text field that says "Hello" or "Goodbye". The objective i want to achive is that once i drop a source onto the destination, removechild will remove any previouse textfields added. This is proving difficult.
[Code].....
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