how do you make an event listener that only listends to a specific key pressed? i want only the space key to have effect and the left mouse button for a different event. there seems to be only one event for all key presses.
capture the keyCode of the spacebar using a KeyBoard Event- i can't recall which is the spacebar, but you on the event listener, you can get it with a simple trace:
addEventListener(KeyboardEvent.KEY_UP,keypressed);
private function keypressed(e:KeyboardEvent):void
{
trace(e.keyCode)//gives a numeric value representing which key is released
}
Your problem inspired me, so I slacked off at work to build a SpecificKeys class which lets you add event listeners for specific keys without having to use a big if/else or switch statement.
I've attached a zip with the classes and an example. The example could have been done more clearly, I suppose.
The zip file contains the development directory I used when I wrote it. You don't need most of the files in there. The simplest way to use it would be to unzip to a directory somewhere, then alter your flash classpath to include the src folder (under publish settings). You can then import me.cosmodro.utils.* and get access to SpecificKeys and SpecificKeyEvent.
BUT... I think that this will not really answer the question you posed in your previous thread. You may find SpecificKeys useful to hook your event to a particular keypress (such as "A"), but you still need to know how to attach the listeners in the first place. You can take a look at the Main.as file included in the zip to get an example of that. I also did a short writeup of this class on my blog: http://cosmodro.me/blog/2008/sep/2/specific-keys/
The important part is this:
Code:
SpecificKeys.init(stage);
var specKeys:SpecificKeys = SpecificKeys.getInstance();
//...
specKeys.addEventListener(SpecificKeys.getEventID(KeyboardEvent.KEY_DOWN, "A"), hilite);
You initialize SpecificKeys with a reference to the stage. At the moment it does not support key listeners on any more specific level.
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