Understanding key events or not

OpenGL Development
#1

ok, I cant seem to find this or I don’t understand how it works. I need to capture the key press(up and down or click) to turn things off and on.

example: key type O to turn on shields, key type O again to turn them off.

I tried

if isKeyDown { shielsUp = true; }
else { shieldsUp = false; }

but this sets/calls shieldsUp = false every frame tick…or is this the way to do it?

Thanks

M

#2

Use buffered input. Hopefully it is explained in the javadoc. If not ther are some tips here: http://www.puppygames.net/forums/viewtopic.php?t=466

#3

Are you trying to set up the key to toggle or hold for effect and release to stop effect?

If you want a toggle it would be something like this:


if(Keyboard.isKeyDown(Keyboard.KEY_F1) && !f1) {
    f1 = true;
    switchMode();
}
if(!Keyboard.isKeyDown(Keyboard.KEY_F1)) {
    f1 = false;
}

This will ensure that holding down the key will produce only one event. You will need to release and then press the key again to switch again.

#4

With buffered input you will get events when the keys are pressed or released. No need to litter the code with state variables.

#5

one press and release turns on and another press and release turns off.

and thanks tom, Ill take a look. :slight_smile:

Its funny, i saw that and read that a while backa nd even posted this question at the end of it. After rereading it just now, I understand, thanks!!