Implementing a KeyListener?

OpenGL Development
#1

I was just wondering how I’d go about implementing a system that notifies a listener class whenever a given key is pressed? Is there some handy LWJGL utility for it, or do I need to poll across all keys and handle it that way?

#2

You have to poll in the sense that you check the keyboard every frame, but not in the sense of checking every key to see if it’s changed. Like so:


while( Keyboard.next() )
{
	int key = Keyboard.getEventKey();
	boolean down = Keyboard.getEventKeyState();
	boolean repeat = Keyboard.isRepeatEvent();
	char c = Keyboard.getEventCharacter();

        // do whatever
}

That’ll take you through all the changes to keyboard state since the last time you checked.

#3

Much obliged!