ActionScript 3.0 :: Keyboard Event To Detect When A Key Is Pressed
Jan 6, 2011
I'm using a keyboard event to detect when a key is pressed. This is what it looks like:
Code:
private function keyPressed(event:KeyboardEvent)
{
switch(event.keyCode)
{
case Keyboard.CONTROL:
ctrlHandle=true;
[Code]...
It's worked up until now. I know that all the keys except the last one work because they carry out their function and the trace on DOWN works. However, for the last one, I've tried W and ALTERNATE (and got errors) and ESCAPE and TAB (both not doing anything, not even returning the trace).
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Similar Posts:
Mar 1, 2011
I have a word; let's say it is "GAME". How can I check if I pressed the "G" on my keyboard?
I just can't seem to figger it out.
PS. If I want to show text on the screen, do I really have to make a new textField, or can I use something like 'echo' in PHP?
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Aug 15, 2004
I am creating a dancing game:URL...I need to disable the keyboard after each key is pressed, so if the user presses the UP key untill the character has finihsed doing the move no other key can be pressed.
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Jun 21, 2006
I want this code to move my map i.e map_mc when the keyboard keys are pressed. When I add it to the map_mc, I see no effect what do u think I am messing with.
Code:
on (keyPress "<Left>") {
currentX = this._x;
this._x = currentX - 2;
} on (keyPress "<Right>") {
currentX = this._x;
this._x = currentX + 2;
} on (keyPress "<Up>") {
currentY = this._y;
this._y = currentY - 2;
} on (keyPress "<Down>") {
currentY = this._y;
this._y = currentY + 2; }
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Sep 13, 2010
Im getting kinda frustrated as I try to come up with a simple way of telling when a key was just pressed... I've used both senoculars KeyObj class and the KEY_DOWN event, but i dont quite work as a would want the to work (if i press enter I get a zillions events - i just want ONE).
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Feb 16, 2010
Im having a problem getting responsive keyboard movement. I have a key_up listener which fails to trigger when 3 keys are down. E.g. Imagine up and right keys are being pressed to move up + right. The user wants to change to moving up + left. The user presses the left key before lifting thg right key. I have a key_up listener to detect when a key is no longer being pressed. However in this scenario it fails to trigger when 3 keys are pressed. Even in this online example, there is the same problem, look how unresponsive it is when chaging from up right to up left really quickly. [URL]
[Code]...
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May 11, 2011
how do I check for no keyboard pressed for 10secs?
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Aug 12, 2010
I need to detect the name of any object pressed that is on the stage. This needs to be done by simply pressing the mouse on that particular object on screen.I tried looking down the Mouse.addEventListener and myObject.target route but did not get very far. Baring in mind that this needs to be done in AS2. I have found a way to do it in AS3 but could not work out how to reverese this as so it works within AS2
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Jan 9, 2012
I am doing a Flash game for school with parallax scrolling. Though I am going a much simpler way of the art, I am having one major error. My error is that when I stop pressing the Up Arrow Key, my ship does not move. All that my ship does, is sit there doing nothing, except for the following; exhausting fuel and showing the flame animation. Detecting if the Up Arrow Key (evt.keyCode == 38), I have tried both code below:
ActionScript Code:
!evt.keyCode == 38
and
ActionScript Code:
evt.keyCode != 38
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Aug 12, 2009
Here is the code I used:
Code:
var keyListener:Object = new Object();
keyListener.onKeyDown = function() {
trace("DOWN -> Code: " + Key.getCode() + " ACSII: " + Key.getAscii() + "
[Code].....
It is an usual code to listen the key presed on the keyboard. For some reason, I cannot detect any letter-key exept letters "w", "x", "d" and "J". I tested it on a different computer and results are the same.
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Mar 31, 2005
my fla file will be attached below. (its not the greatest looking thing but i just need to understand how to do what i want it to). i've got a navigation menu at the bottom of my stage with 2 movieclips. each movieclip has an instance of a button inside, a motion tween of a _alpha graphic flying in, and text to distinguish each button.
my problem #1: on the stage when you hit 'home', it'll fly in, but when you hit 'schedules' next, that will fly in too, right over anything i would have placed on 'home'. i'd like to prevent that by maybe having an outro animation (like a reverse of the intro animation) that can check whether another button was pressed before playing & when its completely off the stage, to play the next content corresponding to the button pressed.
my problem #2: i dont like how everytime when on the stage, i press the 'home' button or 'schedules' button multiple times, that they keep replaying the animation. i'd like it to know that its already been pressed & doesnt need to play again. i have a feeling this problem might be an easier one to figure out but i'm drawing a blank with it.
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Nov 29, 2002
I've played with this thing forever, here's my script:
if (_root.navigation.whois.onPress) {
loadMovie("content.swf", _root.contentarea);
_root.targetx = 140;
[code].....
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Feb 3, 2011
I can't figure out, the Keyboard Input won't work until Mouse Button is pressed. Here's the code to the class I'm having trouble with. If anyone can see what's causing the trouble that would be great.
package
{
// Import necessary classes from the flash libraries
import flash.display.Sprite;
[Code]....
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Aug 12, 2009
Cannot Detect All Key pressed onKeyDown
Here is the code I used:
Code:
var keyListener:Object = new Object();
keyListener.onKeyDown = function() {
trace("DOWN -> Code: " + Key.getCode() + " ACSII: " + Key.getAscii() + "
[Code]....
It is an usual code to listen the key presed on the keyboard. For some reason, I cannot detect any letter-key exept letters "w", "x", "d" and "J". I tested it on a different computer and results are the same. It is driving me crazy. I am not sure what is the problem.
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Dec 11, 2009
[code]This code will trace "up is pressed." into the output panel whenever the UP ARROW KEY is pressed.Try pressing up a couples times to make sure it works.Now hold down the SPACE BAR and the LEFT ARROW KEY at the same time.Try pressing up while you hold BOTH those keys down, and it wont detect the UP ARROW KEY being pressed.It also wont detect the UP ARROW KEY being pressed if you hold down the combination CTRL+LEFT ARROW KEY.
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Dec 1, 2009
I'm developing a little game. I use the following code to detect the keys pressed by the player:
[Code]...
Basically the shootKey will be hold down by the player almost all the time. And the changeColorKey will be pressed very often but not hold down. While testing I noted that holding the shootKey and the right arrow down, the onKeyUp events for the changeColorKey don't get fired. Holding the up or down arrow key instead of the right arrow has the same effect. If I hold the left arrow key the events get fired. Why does it occour? Is there something wrong with my code?
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Oct 14, 2004
How do you detect the enter key being pressed on a button..
I want 2 text boxes 1 for user name 1 for the password
and a button
the user enters username presses tab - enters password - presses tab - button gets focus - presses enter on the keyboard form gets submited
I can detect the enter key press but not when the button has the focus..
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Aug 15, 2006
I've followed the thread there: [URL]
I understand that this class allow the script to detect when keys are pressed in combination.
But what is exactly the implementation when a key is used both in single and combination states. Let's say that you've the "q" key used alone and "shift-q"...how would one proceed to achieve this detection?
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Oct 14, 2004
How do you detect the enter key being pressed on a button.. I want 2 text boxes 1 for user name 1 for the password and a button the user enters username presses tab - enters password - presses tab - button gets focus - presses enter on the keyboard form gets submited I can detect the enter key press but not when the button has the focus..
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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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Feb 7, 2009
I have 1 button that when pressed 1 time should play "movieclip 1" and when hit for the second time should play "mc 2" on so on untill "mc9"(each movieclip plays continously when once activated)
so I need the button to register how many times it has been activated to play the right movie at the right time
I know I saw a script once that would work sometime, just cant find at anymore
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Aug 23, 2009
I want to detect which keys are pressed while user input text into TextField.I tried something like
import flash.text.TextFormat;
import flash.text.TextField;
import flash.events.Event;[code].......
but this doesn't work.
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Feb 19, 2009
I got this code:
Code:
if(Key.isDown(Key.ENTER)&&_root.answer==_root.youranswer)
{
//game over code here
}
However the "youranswer" variable is represented by the value in an input textbox and when I push enter, it just blanks it out and it never matches.
If I change it from Key.ENTER to Key.SHIFT, it works.
But this game: [URL]
has it where it can detect Enter and do a check with an input text box. How does that work?
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Feb 7, 2009
with the following problem:I have 1 button that when hit 1 time shouldplay "movieclip 1"when hit for the second timeplays "mc 2"on so on untill mc9(each movieclip plays continously when once activated)
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May 5, 2010
Detect a keyboard press in it?This is my [code]....
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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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