From: Sander Land <sander.land@...>
Date: 2006-08-01T04:43:44+09:00
Subject: Re: [QUIZ] Chip-8 (#88)

On 7/31/06, James Edward Gray II <james@grayproductions.net> wrote:
> On Jul 30, 2006, at 1:55 PM, Sander Land wrote:
>
> > I used one Win32 function (GetKeyState) as I didn't know a compatible
> > way to check if a key is pressed.
> I discuss this a little at the end of this summary:
> http://www.rubyquiz.com/quiz5.html
> You can also use HighLine for this.

I installed highline and checked the docs as well as the source and
couldn't find anything.
GetKeyState checks if a key is currently held down and not if it was
pressed, so get_character does not do what i want.

An earlier implementation used kbhit/getch, but that didn't work at
all because games like breakout check key input like:
V0 = 4
skip unless key V0 pressed
<some call here for processing input>
V0 = 6
skip unless key V0 pressed
<some call here for processing input>

And the repeat rate of keys seems to be too slow for the "6" to
trigger even if you hold the key down.
One other thing I tried is saving a key as held down for 0.25s if it
was pressed, but that was far too unreliable. The two "@key_timer"
lines of my code are a leftover from this which I forgot to remove.