OpenEuphoria

2. Re: Keyboarding Assistance

• Posted by don cole <doncole at pacbell.net> Feb 08, 2006
• 458 views

Funkbrat wrote:
> 
> I need to know how to do proper keyboarding in DOS Euphoria.
> 
> I want the keyboard to recognize a pressed key without a pause.  Normally,
> it detects the key once, waits a short while, then continues to recognize the
> key again.  I don't want that to happen.  I want it to constantly receive the
> keypress at a smooth rate without a pause after the first time.  How do I do
> it?

Could we see a sample of your code that pauses.

Don Cole
 A Bug is an un-documented feature.
A Feature is a documented Bug.

4. Re: Keyboarding Assistance

• Posted by cklester <cklester at yahoo.com> Feb 08, 2006
• 465 views
• Last edited Feb 09, 2006

http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&keywords=keyboard

Get Michael Bolin's "Keyboard Interrupt Handler."

-=ck
"Programming in a state of Euphoria."
http://www.cklester.com/euphoria/

6. Re: Keyboarding Assistance

• Posted by cklester <cklester at yahoo.com> Feb 08, 2006
• 471 views
• Last edited Feb 09, 2006

Funkbrat wrote:
> 
> cklester wrote:
> > 
> > <a
> > href="http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&amp;keywords=keyboard">http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&keywords=keyboard</a>
> > 
> > Get Michael Bolin's "Keyboard Interrupt Handler."
> > 
> > -=ck
> > "Programming in a state of Euphoria."
> > <a
> > href="http://www.cklester.com/euphoria/">http://www.cklester.com/euphoria/</a>
> 
> I already tried that, but I don't know how it works or how to use it.

Then go here:
http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&keywords=paddle+ball

and get Ralf Nieuwenhuijsen's "Paddle & Ball Game." He uses Michael's code
and you should be able to learn about it from there.

-=ck
"Programming in a state of Euphoria."
http://www.cklester.com/euphoria/

8. Re: Keyboarding Assistance

• Posted by don cole <doncole at pacbell.net> Feb 09, 2006
• 464 views

Funkbrat wrote:
> 
> don cole wrote:
> > 
> > Funkbrat wrote:
> > > 
> > > I need to know how to do proper keyboarding in DOS Euphoria.
> > > 
> > > I want the keyboard to recognize a pressed key without a pause.  Normally,
> > > it detects the key once, waits a short while, then continues to recognize
> > > the
> > > key again.  I don't want that to happen.  I want it to constantly receive
> > > the
> > > keypress at a smooth rate without a pause after the first time.  How do I
> > > do
> > > it?
> > 
> > Could we see a sample of your code that pauses.
> > 
> > Don Cole
> 
> I don't really have any code.  Those were the wait_key() and get_key()
> commands I were talking about.  What I want is to program my own keyboarding
> routines that repeatedly recognize a key from the keyboard without a pause,
> like for moving a player in a game, like a side-scroller or something.  I
> just don't know how to do it.  I'm not that good with Euphoria yet.  I'm
> asking what I need to do to make this happen.


Hello Funkbrat,

  I might be missing something here, but I don't understand how you can 
determine that there is a pause after your keyboard recognizizes a key,
if you have no code to execute.

Again I would like to see the code that is causing this pause.

Don Cole
 A Bug is an un-documented feature.
A Feature is a documented Bug.

10. Re: Keyboarding Assistance

• Posted by Bernie Ryan <xotron at bluefrog.com> Feb 09, 2006
• 468 views
• Last edited Feb 10, 2006

Funkbrat wrote:

> I don't need help with scrolling, I need help with keyboarding.
> 
> As for you don cole, I told you I don't have code.  It's the wait_key() and
> get_key() that give a pause before recognizing the key again.  I'm asking
> how to make my own keyboarding routines, not for help on correcting code.
> 
> But just forget it you guys.  I'm going to try to figure out how to use
> Michael Bolin's Keyboard Interrupt Handler.  Thanks for trying to help me
> out, though.

If you download this program like I explained to you
you will find a keyboard routine that is writen in Euphoria assembler
and would be the fastest.

http://www.rapideuphoria.com/contribz.zip

Bernie

My files in archive:
w32engin.ew mixedlib.e eu_engin.e win32eru.exw

Can be downloaded here:
http://www.rapideuphoria.com/cgi-bin/asearch.exu?dos=on&win=on&lnx=on&gen=on&keywords=bernie+ryan

12. Re: Keyboarding Assistance

• Posted by Jason Gade <jaygade at yahoo.com> Feb 10, 2006
• 458 views

don cole wrote:
> 
> Funkbrat wrote:
> > 
> > don cole wrote:
> > > 
> > > Funkbrat wrote:
> > > > 
> > > > I need to know how to do proper keyboarding in DOS Euphoria.
> > > > 
> > > > I want the keyboard to recognize a pressed key without a pause. 
> > > > Normally,
> > > > it detects the key once, waits a short while, then continues to
> > > > recognize the
> > > > key again.  I don't want that to happen.  I want it to constantly
> > > > receive the
> > > > keypress at a smooth rate without a pause after the first time.  How do
> > > > I do
> > > > it?
> > > 
> > > Could we see a sample of your code that pauses.
> > > 
> > > Don Cole
> > 
> > I don't really have any code.  Those were the wait_key() and get_key()
> > commands I were talking about.  What I want is to program my own keyboarding
> > routines that repeatedly recognize a key from the keyboard without a pause,
> > like for moving a player in a game, like a side-scroller or something.  I
> > just don't know how to do it.  I'm not that good with Euphoria yet.  I'm
> > asking what I need to do to make this happen.
> 
> 
> Hello Funkbrat,
> 
>   I might be missing something here, but I don't understand how you can 
> determine that there is a pause after your keyboard recognizizes a key,
> if you have no code to execute.
> 
> Again I would like to see the code that is causing this pause.
> 
> Don Cole

Once I realized what he was talking about, I made a quick test. 

integer key
atom timer

timer = time()
key = get_key()
while key != 27 do -- esc
    key = get_key()
    if key != -1 then
        if key > 32 and key < 127 then
            ? {key, time() - timer}
        end if
        timer = time()
    end if
    
end while

It's probably related to how DOS/Windows handles key-repeat. After pressing a
key, I get about a .5s pause before the key starts repeating at about .03 seconds
between.

Otherwise I don't know how to help him.

Funkbrat: are you writing for DOS or Windows?


--
"Any programming problem can be solved by adding a level of indirection."
--anonymous
"Any performance problem can be solved by removing a level of indirection."
--M. Haertel
j.

14. Re: Keyboarding Assistance

• Posted by Jason Gade <jaygade at yahoo.com> Feb 10, 2006
• 488 views

Derek Parnell wrote:
> 
> Robert Craig wrote:
>  
> > I'm not sure exactly what you want ...
> 
> The documentation for get_key() says it doesn't wait for the user and returns
> -1 if there is no key in the buffer. However, this doesn't seem to be the case
> (Windows XP SP2). It blocks, waiting for keyboard input. So the original
> poster
> might wondering why there is a 'pause' instead of just returning -1?

That wasn't the case for my simple test programs. Except for a delay before the
key started repeating (which is what I think the original poster was talking
about) the routine returned immediately. (Windows XP Pro SP2, exwc.)


--
"Any programming problem can be solved by adding a level of indirection."
--anonymous
"Any performance problem can be solved by removing a level of indirection."
--M. Haertel
j.

16. Re: Keyboarding Assistance

• Posted by Jason Gade <jaygade at yahoo.com> Feb 10, 2006
• 468 views

Derek Parnell wrote:
> 
> Jason Gade wrote:
> 
> > That wasn't the case for my simple test programs. Except for a delay before
> > the key started repeating (which is what I think the original poster was
> > talking
> > about) the routine returned immediately. (Windows XP Pro SP2, exwc.)
> 
> Okay. 
> 
> -- 
> Derek Parnell
> Melbourne, Australia
> Skype name: derek.j.parnell

Sorry. Maybe I should repeat English. 

--
"Any programming problem can be solved by adding a level of indirection."
--anonymous
"Any performance problem can be solved by removing a level of indirection."
--M. Haertel
j.