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H
Hala Cog Dev
Participating Frequently
November 22, 2012
Question

How to create an EventListener for a specific keyboard press?

  • November 22, 2012
  • 1 reply
  • 833 views

Hello,

I have been trying to figure out how to switch my actionscript3 from a mouse click to a keyboard press. I'm new to Flash, but the problem I keep coming to is that I need to have 3 separate keys programmed in to do three seperate outcomes. I have messed around with eventListeners for keyboard presses, but I cannot figure out how to have flash listen for a specific key press and then do an action based on that specific key press.

Here is my actionscript. Any suggestions on how I can modify the mouse clicks to be keyboard presses, where key 's' = btn1 and triggers gotoAndPlay(2), 'g' = btn2 and triggers gotoAndPlay(3), 'k' = btn3 and triggers gotoAndPlay(4) as outline below. I also need my timer and writing to an exteral file to remain the same.

stop();

var startTime:Number=getTimer();

var elapsedTime:Number;

stream.writeUTFBytes("Item1,");

function BTN1Action(eventObject:MouseEvent) {

     elapsedTime = getTimer() - startTime;

 

          stream.writeUTFBytes("Tar1,");

          stream.writeUTFBytes(elapsedTime.toString());

          stream.writeUTFBytes("\n");

 

          gotoAndPlay(2);

}

function BTN2Action(eventObject:MouseEvent) {

 

          elapsedTime = getTimer() - startTime;

 

          stream.writeUTFBytes("Tar2,");

          stream.writeUTFBytes(elapsedTime.toString());

          stream.writeUTFBytes("\n");

 

          gotoAndPlay(3);

}

function BTN3Action(eventObject:MouseEvent) {

 

          elapsedTime = getTimer() - startTime;

 

          stream.writeUTFBytes("Tar3,");

          stream.writeUTFBytes(elapsedTime.toString());

          stream.writeUTFBytes("\n");

 

          gotoAndPlay(4);

}

BTN1.addEventListener(MouseEvent.CLICK, BTN1Action);

BTN2.addEventListener(MouseEvent.CLICK, BTN2Action);

BTN3.addEventListener(MouseEvent.CLICK, BTN3Action);

-

Any assistance with this is greatly appriciated. 

This topic has been closed for replies.

1 reply

S
saasthasoft
Participant
November 22, 2012

Assuming you want to monitor key press on the button BTN1, you can do following:

// Add a key up event listener on the button (or on the source where the key press needs to be captured)
BTN1.addEventListener(KeyPress.KEYUP, BTN1KeyUpAction);

// BTN1KeyUpAction sample, you can modify this
function BTN1KeyUpAction(e:KeyboardEvent):void {
    if(e.keyCode == Keyboard.S) {
    gotoAndPlay(2);
  }
}
H
Hala Cog DevAuthor
Participating Frequently
November 22, 2012

Where would I add the timer and stream.write bits?

S
saasthasoft
Participant
November 22, 2012

If your requirement is to trigger BTN1 click event when 's' key is pressed, and so on for other keys, you can try the following

// BTN1KeyUpAction sample, you can modify this
function BTN1KeyUpAction(e:KeyboardEvent):void {
    if(e.keyCode == Keyboard.S) {
    var event:MouseEvent = new MouseEvent(MouseEvent.CLICK);
    BTN1.dispatchEvent(event);
  }
}
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