How to make text disappear when mouse is not on object? - actionscript-3

I have objects and they show texts when the mouse is over them. I used MOUSE_MOVE event for this. The problem is when mouse leaves the object, the text stays at the last position. I want it to disappear till the moment mouse will touch the object again. How to do it?
EDIT
I found out MOUSE_OUT or ROLL_OUT works very well. The only problem now is, when I'm on object and text shows up, when I move my mouse fast enough over the text, it blinks. I think it's because text is over the object and when I'm on text, I'm not on object anymore. So I'll just move the text a little away from the cursor. Thanks for answers :)
import flash.events.MouseEvent;
import inventory.inventorySystem;
import inventory.item;
import flash.text.TextField;
var IS:inventorySystem;
var IT:item;
apple.itemName = "Apple";
apple.itemIcon = new AppleIcon();
apple.addEventListener(MouseEvent.MOUSE_MOVE, showItemNameF);
apple.addEventListener(MouseEvent.MOUSE_OUT, hideItemNameF);
pear.itemName = "Pear";
pear.itemIcon = new PearIcon();
pear.addEventListener(MouseEvent.MOUSE_MOVE, showItemNameF);
pear.addEventListener(MouseEvent.MOUSE_OUT, hideItemNameF);
function showItemNameF(e:MouseEvent):void{
var itemNameBox:String;
itemNameBox = item(e.currentTarget).itemName;
stage.addChild(infoBoxObject);
infoBoxObject.infoBox.text = itemNameBox;
infoBoxObject.x = mouseX;
infoBoxObject.y = mouseY;
}
function hideItemNameF(e:MouseEvent):void{
infoBoxObject.x = -145;
infoBoxObject.y = 61;
}

Simply you can make the Enabled to false and if the MouseOver-Event then enabled true.

If you are using the MOUSE_MOVE event, please be aware that this event fires constantly while moving your mouse. This can in certain cases cause your app to slow down if you execute to much logic on this event. (just a side note)
If you are using MOUSE_MOVE, you could use the hitTestObject() to check if you're touching the text container (There are a lot of examples to be found out there on how to accomplish this).
Preferably, you would use a mouse enter and mouse leave event on the container of the text.
For more help you would need to give us some code examples.

Related

Making a movieclip appear when mousing-over a button

I'm trying to create a disclaimer link that, when moused-over, a movie clip (disclaimer window) will show-up on the swf. How do I do this in AS3, please?
I'm new, and I've only gotten this far:
import flash.events.MouseEvent;
import flash.ui.Mouse;
addEventListener(MouseEvent.MOUSE_OVER,showOptions);
function showOptions (e: MouseEvent): void {
}
You can load your disclaimer window movieclip dynamically from your library like so:
function showOptions(e:MouseEvent):void{
var disclaimer:MovieClip = new disclaimerMC();
disclaimer.name = "disclaimer"; //give disclaimer name in case used later
disclaimer.x = 100; //set coordinates of movieclip
disclaimer.y = 100;
this.addChild(disclaimer); //add the disclaimer to the screen
}
Make sure that you go to your disclaimer movieclip in the library, right-click it, go to properties / linkage, and change the Class field. In my example, I changed the Class field to disclaimerMC.
It might also be nice to let Flash know which movieclips the EventListener should apply to. The way your code is now, mousing over anything would call showOptions. As you probably don't want that, you can say
disclaimerLink.addEventListener(MouseEvent.MOUSE_OVER,showOptions);
So then, only when you mouse over disclaimerLink will disclaimer show.
Alternatively, if the disclaimer window will always appear and disappear in the same place, it is quicker to change its transparency value. Your MOUSE_OVER and MOUSE_OUT functions can call disclaimer.alpha=100; and disclaimer.alpha=0;, respectively.

Set a button to invisible once clicked

I'm trying to set a button to invisible in AS3 however when the I leave the frame and come back to it the button is visible again. This is for a jeopardy game I make making for comm tech class.
Here is what I currently have:
a1.addEventListener(MouseEvent.CLICK, a1mouseClick);
function a1mouseClick(mouse:MouseEvent) {
a1.visible = false;
gotoAndStop("A1");
trace("Going to A1");
}
however when it comes back to the frame with the a1 button it is visible again.
Here is my current animation: https://dl.dropbox.com/u/23938245/jeporady.fla
While moving through the timeline flash player can recreates sprites, movie clips and text fields, so your buttons appears visible again. To prevent recreation move all controls to separate level without key frames. If key frames are required try to set the same instance name for this button in all keyframes.
#fsbmain and #prototypical they are right.
While moving through the timeline flash player can recreates sprites, movie clips and text fields, so your buttons appears visible again. To prevent recreation move all controls to separate level without key frames. If key frames are required try to set the same instance name for this button in all keyframes.
I was looking at your project, and offer a quick fix, you need to do the following:
Create a new layer on top to manage a few of actions availables for all frames with the following actions:
import flash.display.DisplayObject;
// Manages the buttons visible state
var buttonsStates:Object = {
"a1":true, "b1":true, "c1":true, "d1":true, "e1":true,
"a2":true, "b2":true, "c2":true, "d2":true, "e2":true,
"a3":true, "b3":true, "c3":true, "d3":true, "e3":true,
"a4":true, "b4":true, "c4":true, "d4":true, "e4":true,
"a5":true, "b5":true, "c5":true, "d5":true, "e5":true
};
// Checks the buttons visibility
function checkVisibility () {
for (var buttonName:String in buttonsStates)
{
var child:DisplayObject = this.getChildByName(buttonName);
child.visible = buttonsStates[buttonName];
}
}
// Saves the visible satatus to false
function setVisibilityToFalse(target:*) {
buttonsStates[target.name] = false;
target.visible = false;
}
Every time you want to check the visibility of the buttons you must call the checkVisibility() function. For example, every time you return to the button list.
Finally the event handler for each button must be like this:
function a1mouseClick(mouse:MouseEvent) {
setVisibilityToFalse(mouse.currentTarget); // Saves the visible state to false
gotoAndStop("A1");
trace("Going to A1");
}
You can download the edited file here http://cl.ly/Lt6X
You are missing a fundamental aspect of how the flash timeline and keyframes function. Once you move away from that frame, the stage instance of the content of that frame and it's properties/states are gone. When you return to that frame, the instance is created again based on the keyframe contents.
I think the best solution given your current approach is to put the main board persistent throughout all the frames. You can do that by creating a layer for it, and have it's keyframe extend from frame 2 to frame 27. However, your next issue will be adjusting visibility of all the elements on that screen when you don't want them visible.
My suggestion would be to put all the elements of that screen into a movieclip symbol of it's own and add that movieclip, and all code for it's listeners, to this new layer you created. For example you might name that instance - main_board and therefore you could modify it's visibility with main_board.visible property. If you did choose that solution, you would need to modify all the code on that frame to use that instance name as well ie :
main_board.a1.visible = false;
Also, you'd need to modify all you addEventListener lines as well :
main_board.a1.addEventListener(MouseEvent.CLICK, a1mouseClick);
Your approach for this game could be greatly simplified, but even further beyond the scope of this question than I have already gone!

AS3 - Unable to capture button click when using Mouse Move listener

In my first AS3 project (not used Flash since AS1) I need to use a custom movie clip as a cursor and detect clicking on a button. Using the code below, the custom cursor works as expected, but I am unable to capture clicking on the button.
If I comment out the first line, the trace for clicking works as expected. I have tried changing the order of the event listeners, applying the follow to the button rather than the stage, but cannot get both to work together.
Any advice as to where I'm going wrong ould be appreciated.
stage.addEventListener(MouseEvent.MOUSE_MOVE,follow);
start_button.addEventListener(MouseEvent.MOUSE_UP, playPhrase);
function playPhrase(event:MouseEvent) {
trace("Click received");
};
function follow(event:MouseEvent) {
cursor.x = mouseX;
cursor.y = mouseY;
};
Looks like that's because you always click on the cursor object as it always positioned right under mouse cursor. Make it "transparent" for mouse clicks:
cursor.mouseEnabled = false;
And if it's a DisplayObjectContainer then also:
cursor.mouseChildren = false;

Frame labels & function parameters

Is it possible to change a frame label within a gotoAndStop('label') with the parameters in a function?
I'm playing around with updating code as I learn more and more techniques, and at the moment the code is a basic click-a-button to select the object shape, and on press the button disappears:
// Change the object into a circle.
circle_btn.addEventListener(MouseEvent.CLICK,function(){changeShape_fun(circle_btn,circle);});
// Change the object into a square.
square_btn.addEventListener(MouseEvent.CLICK,function(){changeShape_fun(square_btn,square);});
// Change the object into a star.
star_btn.addEventListener(MouseEvent.CLICK,function(){changeShape_fun(star_btn,star);});
function changeShape_fun(shape_btn,frame){
shape_btn.visible = false;
main_mc.gotoAndStop('frame');
}
However I can't/don't seem to know how to change a frame label through function parameters, or if what I'm trying to do is even possible.
Also to note, while I'm all ears for any more efficient ways of doing what I'm trying to do, I would still like to know how/if you can change frame labels through function parmeters.
Thanks! :)
You're very close, but you're trying to go to a frame called 'frame' and not the string contained within the frame variable. Try this instead:
// Change the object into a circle.
circle_btn.addEventListener(MouseEvent.CLICK,function(event:MouseEvent){changeShape_fun(circle_btn, 'circle');});
// Change the object into a square.
square_btn.addEventListener(MouseEvent.CLICK,function(event:MouseEvent){changeShape_fun(square_btn, 'square');});
// Change the object into a star.
star_btn.addEventListener(MouseEvent.CLICK,function(event:MouseEvent){changeShape_fun(star_btn, 'star');});
function changeShape_fun(shape_btn,frame){
shape_btn.visible = false;
main_mc.gotoAndStop(frame);
}
This will go to a frame within main_mc called 'circle' when you click the circle or 'square' if you click the square, etc.

Flash AS3 button eventlistener array bug

this is my first time posting a question here.
I have an array of 12 buttons on a timeline that when first visiting that part of the timeline, get a CLICK eventlistener added to them using a for loop. All of them work perfectly at that point.
When you click one it plays a frame label inside the specific movieClip and reveals a bio on the corresponding person with a close button and removes the CLICK eventlisteners for each button, again using a for loop. The close button plays a closing animation, and then the timeline goes back to the first frame (the one with the 12 buttons on it) and the CLICK eventlisteners are re-added, but now only the first 9 buttons of the array work. There are no output errors and the code to re-add the eventlisteners is exactly the same as the first time that works. I am completely at a loss and am wondering if anyone else has run into this problem.
All of my buttons are named correctly, there are absolutely no output errors (I've used the debug module) and I made sure the array with the buttons in it is outputting all 12 at the moment the close button is clicked to add the eventlisteners back.
for (var q = 0; q < ackBoDBtnArray.length; q++){
contentArea_mc.acknowledgements_mc.BoD_mc[ackBoDBtnArray[q]].addEventListener(MouseEvent.CLICK, showBio);
}
private function showBio(eo:MouseEvent):void {
trace("show the bio");
bodVar = ackBoDBtnArray.getIndex(eo.target.name);
contentArea_mc.acknowledgements_mc.BoD_mc.gotoAndPlay(ackBoDPgArray[bodVar]);
contentArea_mc.acknowledgements_mc.BoD_mc.closeBio_btn.addEventListener(MouseEvent.CLICK, hideBio);
for (var r = 0; r < ackBoDBtnArray.length; r++){
contentArea_mc.acknowledgements_mc.BoD_mc[ackBoDBtnArray[r]].mouseEnabled = false;
contentArea_mc.acknowledgements_mc.BoD_mc[ackBoDBtnArray[r]].removeEventListener(MouseEvent.CLICK, showBio);
}
}
private function hideBio(eo:MouseEvent):void {
trace("hide it!");
contentArea_mc.acknowledgements_mc.BoD_mc.closeBio_btn.removeEventListener(MouseEvent.CLICK, hideBio);
contentArea_mc.acknowledgements_mc.BoD_mc.gotoAndPlay(ackBoDClosePgArray[bodVar]);
for (var s = 0; s < ackBoDBtnArray.length; s++){
trace(ackBoDBtnArray[s]);
contentArea_mc.acknowledgements_mc.BoD_mc[ackBoDBtnArray[s]].mouseEnabled = true;
contentArea_mc.acknowledgements_mc.BoD_mc[ackBoDBtnArray[s]].addEventListener(MouseEvent.CLICK, showBio);
}
Thanks in advance for any help and insight you can provide...I have a slight feeling that its something that may be obvious to another set of eyes...haha.
Something that looks suspicious to me is that you're removing the event listener from closeBio_btn at the start of the hideBio(). Try placing that line after the for loop.
I'm having trouble justifying this hunch, but a couple of wild theories that have crossed my mind are:
This is a race condition. You're removing the listener for the handler from inside the handler itself, and since the handler was added dynamically, the runtime marks the handler for garbage collection. On the next sweep, the handler is deleted — but since gotoAndPlay probably takes a non-significant amount of time, the handler is still in the for loop adding click handlers when it gets killed, and has only added the first 9 at this point.
This is a data-corruption problem. Since the hide button and the array of 12 buttons are at least tangentially related through BoD_mc, the runtime is doing some strange optimization behind the scenes that makes accessing items through Bod_mc[with indexes] unreliable after closeBio_btn has been touched.
This is an interesting problem, I hope you find a solution :)
It seems to fix it I had to just add every btn dynamically instead of just having them on the timeline. Still strange though, thanks everyone