ActionScript 3.0 :: Keyboard Event Conflict?
Sep 8, 2010
I'm an artist, not a developer, but I work with various media. I am so~so with AS3 and JS and a total noob with PHP and databases.Anyway, I am writing a Class based on keyboard events and I am finding that if the keys are hit too fast the triggered events don't complete.I'll explain further:I have a picture broken into parts (a red background here, a blue stroke there, and so on). Each one of these elements is a Library Object, and they are all set to alpha=0, and each one in turn, is tied to a key on the keyboard. When the key is struck, the picture element goes to alpha=1, plays a sound, and starts tweening back towards alpha=0.
Code:
public class TypedImageV4 extends MovieClip {
public function TypedImageV4() {
[code].....
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Apr 15, 2010
I have a hitTest on an enterFrame event that adds a movieClip.I then want the movie clip to be on a timer that changes it to another movieClip.As you can imagine, there is a conflict because the hitTest always finds the original Mc an so over-rides the timer.I know this is a logic problem but I cant seem to figure it out.I am pretty sure I am thinking about this the wrong way.here is some of the code:
//this is the hitTest
this.addEventListener(Event.ENTER_FRAME,leftPillarHit);
function leftPillarHit(ev:Event):void {
[code].....
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Aug 11, 2011
I want change the HBox's style when click any object inside this HBox. I set handle for click event of HBox, and then I found it very difficult to select item in the combobox in this HBox.When I click the combobox, it drops down its item list, and HBox style changed, then combobox drop up very quickly, I have no time to select an item in the Combobox.Here is my codes, is there any way to avoid this problem?
<mx:Repeater id="itemRepeater">
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[code].....
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Sep 8, 2009
I'm using a custom event (HotEvent) to make the communication between a loaded swf and its container, but im getting some strange error if i set the event handler parameter type:
[Code]...
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Jul 7, 2011
I am trying to learn JavaScript and I am wondering whether JavaScript has a event listener just like ActionScript's ENTER_FRAME. Basically, I want this event listener to listen "all the time" not just wait for any particular instance (mouse click, keyboard event) of event.
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Nov 1, 2009
i have a question to ask about asynchronous key controls This was what i did
[Code]...
and i checked with [URL]...?newspage=6249 and it looked more or less the same, so why is it that when i move my character and when i hold down a key, it just keeps on listerning to that keypress event listener, instead of just executing the other event. So say, i tap left and after which i tap right, it will work just fine, but if i hold left and tap right, the event listerner will still be listening to the left key. So, i was wondering could anyone point me in a direction as to how should i make my code stop listening to an event as soon as another event has been dispatched?
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Jul 8, 2011
I am doing this inside a module containing viewstacks and their childs.Calling onInit() on creationComplete of module.When I am inside one of the childs of a viewstack of this module and press Enter, it doesnt not invoke the listener function at all (bp inside this does not get hit).
private function onInit():void{
this.addEventListener(KeyboardEvent.KEY_DOWN, keyPressed);
}[code]..........
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Apr 23, 2009
When game starts, the car runs automatically. Then we click the SPACE button, movement of car stops. And the door of structure near car is available to CLICK.
But in coding I got this error code:
TypeError: Error #2007: Parameter listener must be non-null.
at flash.events::EventDispatcher/addEventListener()
at shfg_fla::MainTimeline/key_pressed()
This is some part of my game code...
case Keyboard.SPACE :
removeEventListener(Event.ENTER_FRAME,car_movement);
--street_mc.bluehome_mc.door_btn.addEventListener(MouseEvent.MOUSE_DOWN,door_ready)
[Code]....
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Jul 4, 2009
I have a question about making a function for two different kinds of event. It's not critical but I would like to reduce my lines of code and just be more efficient. Basically I have a button on the stage called "Enter". I also want the user to have the option of hitting the enter button. I don't have a problem making these two separate handlers for these events (i.e. one handler for the KeyboardEvent and one handler for the MouseEvent):
[Code]...
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Oct 24, 2011
how can you switch the mouse event with keyboard event in the folowing example:
Code:
var qno=0;var rnd1; var rnd2;
tick.visible=false;cross.visible=false;
var right_answers=0;var wrong_answers=0;
[Code]....
i know that u have too define key up and down functions and in the beginnig give the keys we are using the false value, but how to make it that after i pess of a key you cant press in again unless you go to the next question that is the enable_disable in the following code. How would that function looked in case of keyboard event
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Jul 5, 2009
ok so i am trying to change a boolean with a keyboard event
my code is this:
Code:
stage.addEventListener(KeyboardEvent.KEY_UP, keyPressed);
function keyPressed(evt:KeyboardEvent):void {
if (evt.keyCode==Keyboard.SPACE) {
if (!gamePaused) {
[Code]......
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Nov 28, 2010
I am creating a game where you have to use the up and down buttons on the keyboard to avoid movie clips. For some reason it won't register when i press the keys down. Here is my code:
[Code]...
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Jul 31, 2009
I'd like to arrange things so that I have a chain of keyboard event handlers in my flex application, all of whom are queried when key down events occur. Basically, when a visual component is on screen, it is a candidate for handling a key press event. Something like this (clearly this is pseudocode):
<application handles_keys="F5, F6">
<tabGroup>
<tab1 handles_keys="pgup, pgdn">
<control handles_keys="0,1,2,3,4,5,6,7,8,9" />
[code]...
I have a class written that will respond to the key events the way I want it to, so how do I register one or more instances of this class to have the results I want? Also, note that there are some situations where this class should receive events that would ordinarily be handled by a UI component. The TAB key is the main example; I have a few cases where I want my key down event handler to fire even when the focus is on a text field.
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Mar 29, 2012
I'm trying to detect keyboard input and if the arrow keys are pressed, set the players next move to whatever was pressed. I'm listening for keyboard input using:
stage.addEventListener(KeyboardEvent.KEY_DOWN, keyDown);
This is the function that gets called:
public function keyDown(event:KeyboardEvent):void
[code]....
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Dec 29, 2010
Tracing the keyCode for the 'a' key (65) only works once for KEY_DOWN events and sometimes KEY_UP behaves in the same way, making development a pain when trying to do things quickly.
Clicking on the stage makes it start working, but why is it just the 'a' key that is affected?
This is on a new MBP running OSX 10.6.5, Flash version MAC 10,1,102,64
[URL]
The issue can be reproduced every time with this code:
ActionScript Code:
import flash.events.KeyboardEvent;
stage.addEventListener (KeyboardEvent.KEY_DOWN, keyDownHandler);
[Code]....
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Mar 6, 2010
I have a button on the stage called enterCostBtn that when it is pressed it executes the code inside the calculateCost function. What I want to do is to be able to use the ENTER key on my keyboard to trigger that function. In other words I would like to be able to use the ENTER key or click directly on the enterCostBtn to trigger this function.
Code:
enterCostBtn.addEventListener(MouseEvent.CLICK,calculateCost,false,0,true);
function calculateCost(event:MouseEvent):void {
var material:Number=Number(Material_txt.text);
var labor:Number=Number(Labor_txt.text);
[Code].....
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Feb 14, 2011
I have been reading for about an hour online with no solution, if you are typing in a text field, you seem to not be able to read if the "enter" key is pressed, exmaple attached.
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Jul 1, 2011
I'm still a beginner in programming ActionScript 3.0,
I had a problem with KeyboardEvent in ActionScript 3.0,
I created a simple shooting game, the game has 2 Frame,
1. Title Game (Frame 1)
2. Game Playing (Frame 2)
The problem is in Frame 1 when Button is clicked playinggame
then switched Frame to Frame 2 where the game takes place where the user can move the aircraft by using the keyboard, (Left Arrow, Up Arrow, Right Arrow & Down Arrow).
But when a keyboard button is pressed, KeyboardEvent not react at all, and aircraft can not be controlled.
Even more bizarre when the stage at the click KeyboardEvent can react and aircraft can be controlled.
The question is how to keep the button is clicked playinggame in Frame and the Frame 2, the aircraft can still be controlled using the keyboard
[URL]
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May 14, 2008
I looked around but I didn't find any event sent by the TextField whe the keyboard cursor enters or leaves the field ?
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Sep 15, 2009
Most flash games and interactive animations that use keyboard events are made to respond in different ways to different keys.I am working on games for toddlers, who basically just bang on the keyboard indiscriminately. The trouble I'm having is setting up keyboard eventlisteners (key_up) that each perform different function.We're talking games like: when key pressed, ducky dances; when key pressed, doggy dances; when key is pressed, ducky and doggy go to sleep. I've attempted removing the listener before adding the next one:
stage.addEventListener(KeyboardEvent.KEY_UP, doSomething);
function doSomething(evt:KeyboardEvent):void
{make it do something;
[code]....
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Jan 29, 2010
I am trying to write a keyboard event listener so that when I press a specific key it controls the time line. Below is working code for when I press "enter". How would I make it work if I pressed "Q"?
[Code]...
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Jul 30, 2009
I am working on a game project and i have a question about movie clip movement using keyboard event. Basically I have a character on screen and it can move on the x axis using the left and right buttons. I am making my character move by changing the x value of the character movieclip but I find very it laggy and not smooth and if I am going point by point then it's too slow. Whats the best way to make the character move so that the transition will be smooth.
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Mar 20, 2011
I want the user of my game to be able to press the Space bar and be taken to a new scene. I know how to do this with a button, but I can't figure out the code to use for a Keyboard event.
how to make pressing the spacebar play a new scene?
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Apr 13, 2010
I'm trying to get familiar with the whole keyboard event detection thing.Here's my sample code.
<fx:Script>
<![CDATA[
import flash.events.KeyboardEvent;
[code].....
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Apr 30, 2010
now I'm trying to make the keyboard events to stop repeating.
My idea was to have a true and false condition for when the key is pressed so that it wont repeat if the key is down already.
//Mouse Event Over
keyCButton.addEventListener(MouseEvent.MOUSE_OVER, function(){gotoAndStop(2)});
//Variable
[Code].....
doing this makes the key loop over and over without a keyboard event I think i need to add a "&& keyDown..." to "if (this.soundplayed==true)" but i dont know how to do it without getting errors
here is the keyboard player i'm trying to fix [URL]
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Feb 2, 2011
I have a textArea and would like to prevent the default behavior for certain keys such as the enter key from being run upon user input. However, KeyboardEvent is not cancelleable so preventDefault does not work.
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Jul 20, 2011
I need to fire an event by pressing CTRL+s.
I tried this but it won't work:
if(e.ctrlKey == true && e.keyCode == 81){
trace("CTRL+S")
}
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Aug 10, 2011
I am creating an action script keyboard for a touch screen. I have buttons from A - Z. How do I get the value out of the mouse event?
[Code]....
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Aug 19, 2009
I came across this annoying bug in Linux.
consider this code as timeline code:
ActionScript Code:
import flash.utils.getTimer;
import flash.events.KeyboardEvent;
[Code]...
(haven't tested in Mac, I deleted my mac vm as it wasn't accurate)
What is going on is that just after a KEY_DOWN event, a KEY_UP event fires, even though you didn't release the key.
Now as for where this bug is located, I'm not sure. It could be with how flash integrates into the already present keyboard interface of the OS, or it could be the OS's keyboard interface itself.
But see either way, it's something I can't control. I can't change flash player, nor can I change the keyboard interface of the OS (well I can, but what about other users with Linux?).
So what I need is a way around this. To side step this key up event when the key up didn't actually occur. Because this is causing some majour issues with my KeyboardController class.
[edit]
furthermore it makes me wonder what might be going on in Solaris.
I think I'll reinstate my vm's of Solaris and Mac OSX and see.
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Nov 26, 2009
I have a class called OfficeGame, which is working fine, except in that class I instantiate a class called OfficeSchmuck which is the character of my game. The problem being that the character is not responding to my event listeners which tell him to move. Here are the two classes:OfficeGame.as
ActionScript Code:
package {
// imports
[code]........
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