i have 2 movieclip on different frames of main timeline . im trying to move in different frame of timeline(from index to page c11) and call a function in the second movieclip . when i use code in main timeline using a bottom it work good
gotoAndPlay("c11");
aks1.aks2.c1Load();
but when i use it in another movieclip like this
MovieClip(parent).gotoAndPlay("c11");
MovieClip(parent).aks1.aks2.c1Load();
the function c1Load() dosent start .
i dont get any error but this is displayed
TypeError: Error #1009: Cannot access a property or method of a null object reference.
at fan_fla::hand_3/frame184()
p.s
i need to run it after the last frame of first movieclip
update :
i have a main timline with 2 lables "index" and "c11" . symbol "hand" is on frame "index" and symbol "aks1" on frame "c11" . i can call function aks1.aks2.c1Load(); from main timline using botton but when i call it from last frame of "fin" it dont work .
it seems that i cant call a function in a symbol from another symbol . so i added an invisible bottom to main timeline and write the needed code then called it from movieclip like this
MovieClip(parent).p12(null);
in botoom click function is this code
aks1.aks2.c1Load();
the problem is solved but in theory firs code should work too . and its not a good way to solve it .
edit:
i think found the problem . bottom in main timelin is on a layer that exist in both keyframes . that is why it work
sorry for my bad en
Related
I am not a programmer, so please forgive me if my question is too noobish.
I created a MovieClip in my library called "skill". Then I added three instances of that MovieClip into my stage called "skill_01", "skill_02", and "skill_03" respectively. I selected all three instances and created another MovieClip called "diagram" to nest them inside it. I will later add more skill instances inside this MovieClip called "diagram" but for now, I need the basics to work with three instances.
The main timeline or stage only has 1 frame, and so does the "diagram" MovieClip instance. However, the skill instances all have two frames: in frame 1 I have an PNG image showing them as being locked/offline, and in frame 2 I have another PNG showing them as unlocked/online. I need to be able to toggle them by clicking and right clicking on them, just like in the example below (see link)
I am trying to make it so that when you left click the skill instances they toggle to Online/Unlocked by switching to the PNG image in frame 2, and when you right click them, it goes back to frame 1 (Offline/Locked). I've tried several different lines of code, including the ones recommended by Adobe itself, and others, and I can't figure out what I'm doing wrong. It will go to frame 2 and refuse to go back to frame 1 when right clicked.
This is the code I have in the MovieClip:
stop();
skill_01.addEventListener(MouseEvent.CLICK, fl_ClickToGoToNextFrame);
function fl_ClickToGoToNextFrame(event:MouseEvent):void
{
gotoAndStop(2);
}
This part of the code doesn't work:
skill_01a.addEventListener(MouseEvent.RIGHT_CLICK, fl_ClickToGoToPreviousFrame);
function fl_ClickToGoToPreviousFrame(event:MouseEvent):void
{
prevFrame();
}
Screenshot 1:
gyazo (dot) com/e622baee46c3fabbd8c9a8d2df8396fe
Screenshot 2:
gyazo (dot) com/1b360716a5d243aa74e2be4127fe9a5b
(Sorry for typing the links like that, it won't let me add more than 1 link because I just signed up to this Forum)
For more context, I am trying to make a Skill Tree, that works similar to this one: http://www.dungeonsanddevelopers.com/#__6_Your
I will appreciate any help figuring this out!
if you have named your movieclip, skill_01, so what is the skill_01a ?
also add your event listener and its callback function in to the movieclip's parent and inside the callback function, for accessing the event owner, use
// stop(); not necessary to call stop if you have only 1 frame
with (this.diagram) {
skill_01.addEventListener(MouseEvent.CLICK, fl_ClickToGoToNextFrame);
skill_02.addEventListener(MouseEvent.CLICK, fl_ClickToGoToNextFrame);
skill_03.addEventListener(MouseEvent.CLICK, fl_ClickToGoToNextFrame);
skill_04.addEventListener(MouseEvent.CLICK, fl_ClickToGoToNextFrame);
skill_01.gotoAndStop(1);
skill_02.gotoAndStop(1);
skill_03.gotoAndStop(1);
skill_04.gotoAndStop(1);
}
function fl_ClickToGoToNextFrame(event:MouseEvent):void
{
if (MovieClip(event.target.parent).currentFrame == 1)
MovieClip(event.target.parent).gotoAndStop(2);
else
MovieClip(event.target.parent).gotoAndStop(1);
}
Edit: when an event is dispatched from clicked movieclip, only the last movieclip inside hierarchy tree will be passed as event.target in your exaple, that can be skill_01 (if currentframe is 1) or skill_1a (if currentframe is 2) athwart the question body, you have not only a png image inside skill's frame 1 and 2, they are movieclip's and will be returned as event.target. but if you only put your bitmaps (locked.png & unlocked.png) instead of skill_01 and skill_01a, the previous code works fine. bitmaps does not capture event so its parent is who accepted click event and its all a little confusing, i'm not good at explain
if its hard to comprehend
we shall use some thing like it, easier but larger code
with (this.diagram) {
skill_01.addEventListener(MouseEvent.CLICK, fl_ClickToGoToNextFrame_s1);
skill_02.addEventListener(MouseEvent.CLICK, fl_ClickToGoToNextFrame_s2);
skill_03.addEventListener(MouseEvent.CLICK, fl_ClickToGoToNextFrame_s3);
skill_04.addEventListener(MouseEvent.CLICK, fl_ClickToGoToNextFrame_s4);
skill_01.gotoAndStop(1);
skill_02.gotoAndStop(1);
skill_03.gotoAndStop(1);
skill_04.gotoAndStop(1);
}
function fl_ClickToGoToNextFrame_s1(event:MouseEvent):void {
toggle_buttons(skill_01);
}
function fl_ClickToGoToNextFrame_s2(event:MouseEvent):void {
toggle_buttons(skill_02);
}
function fl_ClickToGoToNextFrame_s3(event:MouseEvent):void {
toggle_buttons(skill_03);
}
function fl_ClickToGoToNextFrame_s4(event:MouseEvent):void {
toggle_buttons(skill_04);
}
function toggle_buttons(button:MovieClip):void
{
if (button.currentFrame == 1)
button.gotoAndStop(2);
else
button.gotoAndStop(1);
}
I want to try a simple task where if i move a object inside the world and then press a button it should go back to its original position , but its not working , below is the code i am using - the file is here - http://www.fastswf.com/yAnIvBs (when i remove the event listener)
with event listener - http://www.fastswf.com/rpYsIt8
////////========================
stop();
var startXPos:Number = level1WorldObj.box1.x;
var startYPos:Number = level1WorldObj.box1.y;
function areaS(e:Event) {
level1WorldObj.box1.y= startYPos;
level1WorldObj.box1.x= startXPos;
level1WorldObj.box1.removeEventListener(Event.ENTER_FRAME, areaS);
}
but1.addEventListener(MouseEvent.CLICK,nClick3);
function nClick3(event:MouseEvent):void{
level1WorldObj.box1.addEventListener(Event.ENTER_FRAME, areaS);
level1WorldObj.box1.y= startYPos;
level1WorldObj.box1.x= startXPos;
}
/////////////////======================
Now i want to be able to do it many time so i kept the variables that detect the initial x, y as global ...
Here you can see how it behaves in debugdraw mode , strangely only the clip moves not the actual body - http://www.fastswf.com/-Ijkta4
Can some one please guide me here ...
Thanks in advance ...
Jin
The graphics that you see (box1) aren't related to the physical object behind the scenes - you're currently only moving the graphics not the object itself.
You need to use either SetPosition() or SetTransform() on the b2Body of the object
Edit 07/7
As you're using the Box2D World Construction Kit, I took a look at the source code (available here: https://github.com/jesses/wck). The main class seems to be BodyShape (https://raw.githubusercontent.com/jesses/wck/master/wck/BodyShape.as).
Looking through it, you should be able to access the b2Body directly. If it's null (which is probably the source of the TypeError that you're getting, then you haven't called createBody(), which is what actually takes all of your properties as creates the physical object behind the scenes.
Once you have a b2Body, if you want to position it based on the graphics, there's a function syncTransform() to do just that.
You should turn on debugDraw on your World class to make it easier to see what's going on in the background. NOTE: this needs to be done before calling create()
I was able to find solution to this problem , i found the starting point by using this -
trace(level1WorldObj.box1.b2body.GetPosition().x);
trace(level1WorldObj.box1.b2body.GetPosition().y);
then once i had the position manually i took down the coordinates and used the below code ....
level1WorldObj.box1.b2body.SetTransform(new V2(-2, 2),0 );
Thanks #divillysausages for all the help ...
Regards
I have a class called "airport" which extends movieclip. I have, successfully, managed to add a mouseclick-eventlistener for every object of the class that i create.
When I click on one of the objects, I am supposed to enter frame 2 on the main timeline.
I've tried to use the following code inside the class:
this.addEventListener(MouseEvent.CLICK, clickHandler);
private function clickHandler(evt:MouseEvent):void
{
MovieClip(parent).nextFrame();
}
When I click on one of the objects, I don't enter frame 2, but the whole screen goes blank. Any ideas? Thanks for advice.
PS: If you request more of my code to provide an answer, I would be happy to provide it.
Whatever 'this' is isn't a direct child of the main timeline. Try this:
private function clickHandler(evt:MouseEvent):void {
MovieClip(root).nextFrame();
}
Oh..I just found the error. In my code I used the line
this.parent.visible = false
to hide the objects when I entered next frame.
What I did not know was that this also would hide every other movieclip, which results in the screen beeing totally white.
This is a function that loads a specific video into a MovieClip container at 0.0 using a video class.
public var mainVideo:SimpleVideo;
public function loadVideo(videoString:String) :void{
mainVideo = new
SimpleVideo("videos/"+videoString+".flv","",true,video_container.positionMc);
video_container.addEventListener(MouseEvent.MOUSE_DOWN,controlVideoPlayer);
addChild(mainVideo);
trace('adding new video to container');
}
I'd like to preferably check, each time a video is loaded, to see if there already is another video loaded. And if there is, then remove it, and add the new video.
I've tried using removeChild() in a variety of ways, but it doesn't seem to work correctly.
Would I use removeChild(mainVideo)? video_container.removeChild(mainVideo)?
And how would I be able to check if there was already an existing mainVideo?
Any help would be greatly appreciated!
-Update-
If I try and use removeChild(mainVideo) I get this error:
TypeError: Error #2007: Parameter child must be non-null. at
flash.display::DisplayObjectContainer/removeChild() at
Main/removeVideo() at MethodInfo-127()
If you add the video into a container movieclip rather than onto stage, and that container only has just one instance of SimpleVideo in its display list at a time, you could do:
if( myVideoContainer.numChildren > 0 )
{
myVideoContainer.removeChild( myVideoContainer.getChildAt( 0 ) );
}
A bigger issue though is how the SimpleVideo class you are using cleans itself up. Most video classes have a cleanup or kill function that removes the listeners and cleans up the netStream. I would think you'd need to call something like that as well as removing the video instance from the container.
I hope this respone may help you
--> Would I use removeChild(mainVideo) ? video_container.removeChild(mainVideo) ?
you should use removeChild function but you need to know who is the parent of mainVideo and call this function of his parent, in your case, I think, video_container is not the parent because is a variable near mainVideo and you add mainVideo to the instance of the class which has loadVideo function
sometimes you can use mainVideo.parent.removeChild(mainVideo), not the best approach but it works, it's better to know who is the parent and call function removeChild() explicitly on that "parent"
--> would I be able to check if there was already an existing mainVideo?
well, you can do a simple if(mainVideo != null) { .. } because in function loadVideo you create new instances each time, that means if you called at least one time this function then if condition should be true that means you have already an existing mainVideo
--> TypeError: Error #2007: Parameter child must be non-null.
that means your mainVideo is not instantiated, because I guess you have not called loadVideo() yet, that's why #putvande asked you to provide more code, we need to see where and when you call removeChild()
I'm trying to go to another scene by clicking a button witch is placed in a mc and I got an error.
This is my code below
Play_btn.addEventListener(MouseEvent.CLICK,gotoScene2);
function gotoScene2(evt:MouseEvent){
movClip.gotoAndPlay(1,"Scene 2");
}
(this code is placed inside a movieClip witch is instantiated like "movClip", at frame 260 - may be this help to understand better).
And this is the erorr i get:
Symbol 'preloader26',Layer'Layer9',Frame 260,Line 4 1120:Access of undefined property movClip
I hope anyone can help me...thanks very much!
Try to get the parent of the object , like this:
MovieClip(this.parent).gotoAndPlay(1,"Scene 2");