ZX81 Graphic Competition 2007
Matthew Westcott
Neat idea - I'm half tempted to give it a go, even if I am crap at
graphics...
Bill H
Matt - have you seen the animated dancing baby done on a ZX81? Check
out the clash version on: www.ts1000.us
Bill H
GzavSnap
"Bill H" <bi...@ts1000.us> a écrit dans le message de
news:1181520350.2...@c77g2000hse.googlegroups.com...
"Competition" ?
... ANDRE*** is a serious "Comprtiter" ... and he is "The" best ZXdrawer !
It will difficulte to win this game.
Regards.
><avsnap
Duncan Snowden
I might. I used to be quite good at ZX81 graphics. Mind you, that was
nearly 25 years ago (gulp!). As computers have got better at doing
graphics, I seem to have got worse. I suppose there are only so many
mistakes you can make on a 64x42 display.
--
Duncan Snowden.
zxbruno
> out the clash version on:www.ts1000.us
>
> Bill H
Hi Bill. I tried to join the TS1000 forums a few times, and I got a
message saying that I wasn't authorized. I tried reaching you via bill
a t ts1000.us on Apr 14 this year, but never got a reply. Are your
forums still open for registration? This is a copy of the email that
was sent:
"To: bill a t ts1000.us
date Apr 14, 2007 12:12 PM
subject ZX Spectrum user
mailed-by gmail.com
Hi there. My name's Bruno and I live in Santa Ana, CA. I'm a Spectrum
user but I came to the U.S. in 1995 and started to buy Timex Sinclair
material. I'm already a regular at worldofspectrum.org's forums, and I
would like to register and participate in your forums too, but I get a
message saying that I'm banned and can't register. What could I do?
Best regards,
Bruno"
I've been in contact with David Ahl from Sync, Ron from the TS2068
yahoo group, and Al Hartman and Stewart, former owners of Zebra
Systems. If I could participate in your forums, please let me know.
Cheers.
zxbruno
results of this competition. I wonder if someone will try to use
digitized images. That kind of 'cheating' wasn't common back in the
80's, but it happened. And today it's so easy to convert a digitized
image to use it on any computer...
Bill H
Bruno that email gets so much spam I finally deleted it. If you have
problems signing up on ts1000.us, send an email to contribute at ts
1000 dot us
Bill H
Bill H
You should be able to register now - I was banning mail.com - and
gmail.com fits that filter - I removed it.
Bill H
Russell Marks
I think I will, in fact I emailed with a few questions and was
encouraged to post the response, so here it is...
> >Hi,
> Hello!
>
> >I just read on comp.sys.sinclair about the ZX81 graphics comp, and I
> >thought I might try a thing or two for that.
> Oh, it would be really cool.
>
> >But I have a few questions the web page doesn't really answer...
> >- Is any form of hi-res graphics allowed? It sounds like it isn't, but
> > it would be good to make this clearer I think.
> Well, officially we decided there will be no hi-res. BUT - if people
> will send any hi-res pictures - then we put it in a sub-part of the
> Compo. And then there will be 2 categories - standard & hi-res.
> That's why we haven't wrote that hi-res wasn't allowed. It IS - kind
> of. ;) If You send some hires stuff and convince some friends to do
> more pictures in this format - then there will be separated
> category. Although I'm not sure which emul allows to display hires
> stuff (of course all pics will be available in *.p + "*.p to WAV"
> convertor but we would like to add also screenshots and therefore
> some good emulator is still required).
>
> >- Does the picture have to be printed by Basic? Could it be put on the
> > screen with machine-code instead?
> We assumed that the easiest way is to draw in basic. But we ment
> real drawings, not converts (some progs allow do do that, as I
> noticed on the Net). But final answer for Your question is: Yes, the
> picture can be put on the screen with machine-code instead of Basic.
> We simply want the compo to take a place at all, that's why we will
> accept not only Basic stuff. It was rather like a hint, not any
> injunction.
>
> >- You say the picture doesn't have to all be on one line, but is it
> > acceptable to have each screen line on a separate line of Basic? (I
> > find this easiest to handle.)
> In this case everything is allowed. Main idea is: to make whole
> matter the most easy to authors. Do what You like the most.
> Although... THAT You could understand in naughty way. ;) ;) ;)
>
> >- In Basic you can't print on the bottom two lines of the screen, does
> > that mean they can't be used?
> They can be used if You know how to use them. :) For instance - my
> pic will be WITHOUT them. :) But Yours - can have them. Just use the
> method You like.
>
> >- Can entries be based on pre-existing photos, cartoons, etc., as long
> > as the actual drawing is my own work?
> Yes, of course. As for converts, we trust authors and we hope
> everybody will make their pics by own hands. That's an official
> statement. ZX81 has great graphic possibilities (
> http://fetrmartin.free.fr/asciiart/images/zxdraw.png ,
> http://fetrmartin.free.fr/asciiart/images/noyeux_joel.png ,
> http://fetrmartin.free.fr/asciiart/images/passion.png ) but... well,
> we're not the Amiga scene, so every good picture is welcomed.
>
> >- Can I enter more than one picture?
> Yes, we will be happy to get it. :)
>
> >- If I sent an entry now, could I "update" it later?
> You can update them until they're published on the Net. I suppose
> it's fair.
>
> >- Have you had many entries yet? :-)
> Well, we just started to advertize the Compo. Therefore I assume
> it's not bad to have one pic already and several persons promissed
> they draw something too - as for the beggining it's not so bad. ;)
> Of course we hope everybody who's interested in the ZX81 will send
> something and inform his friends about the Competition too. ;)
>
> >One suggestion I would make is to put entries on the web page as they
> >arrive, as I think in e.g. the Minigame Compo this makes it more
> >tempting to take part.
> Hmmm, that's interesting - we will think about it although it seems
> to be dangerous for Your idea of improving Your pictures while the
> Compo.
>
> At the end, I'm really glad to read Your letter and I would be
> grateful if You could quote/forward this reply to the
> comp.sys.sinclair as some people (hopefuly) might be interested too. ;)
>
> >Thanks,
> >-Rus.
> Greetzzzzzzzz!!
> Yerz/H-PRG
FWIW, re: the bottom-two-lines problem, I did come up with a crude way
of using them from Basic which goes like this:
10 fast
20 cls
30 clear
40 print "... 8 lines ...";
50 print "... 8 lines ...";
60 print "... 6 lines ...";
70 let a$="... 2 lines ..."
80 let s=3+peek 16400+256*peek 16401
90 let d=727+peek 16396+256*peek 16397
100 if len a$<>64 then stop
110 for f=0 to 63
120 poke d+f+(f>31),peek (s+f)
130 next f
140 slow
150 pause 4e4
There are probably better ways of dealing with it, but if anyone wants
to use that they're welcome. In theory you could lose lines 20/30/100,
but you probably want those or it's a bit too easy for Bad Things to
happen. :-)
-Rus.
GzavSnap
Thanks to Yerz (H-PRG).
> Matthew Westcott <gas...@raww.org> wrote:
>
> > http://zx81.republika.pl/
> >
> > Neat idea - I'm half tempted to give it a go, even if I am crap at
> > graphics...
>
> I think I will, in fact I emailed with a few questions and was
> encouraged to post the response, so here it is...
>
> > >Hi,
> > Hello!
> >
> > >I just read on comp.sys.sinclair about the ZX81 graphics comp, and I
> > >thought I might try a thing or two for that.
> > Oh, it would be really cool.
> > >But I have a few questions the web page doesn't really answer...
> > >- Is any form of hi-res graphics allowed? It sounds like it isn't, but
> > > it would be good to make this clearer I think.
> > Well, officially we decided there will be no hi-res. BUT - if people
> > will send any hi-res pictures - then we put it in a sub-part of the
> > Compo. And then there will be 2 categories - standard & hi-res.
> > That's why we haven't wrote that hi-res wasn't allowed. It IS - kind
> > of. ;) If You send some hires stuff and convince some friends to do
> > more pictures in this format - then there will be separated
> > category. Although I'm not sure which emul allows to display hires
> > stuff (of course all pics will be available in *.p + "*.p to WAV"
> > convertor but we would like to add also screenshots and therefore
> > some good emulator is still required).
"...of course all pics will be available in *.p + "*.p to WAV"..."
We can draw a black and white BMP (gif) file and tell you "that's a ZX81
sreen shot"!
But, a "P" file can't be the garant of an original ZX81 file.
In high resolution, many softs can convert a BMP to a "P" file ...
You can use VB Xur to convert a 1byte BMP picture to a buffer variable (S$)
and save it to a "P" file.
But, if you had to draw a hrg screen on a Hrg Memotech, you had to
retrive/code a specific software!
The picture will be poor and will take many hours...
This kind of picture can't be representative in you "ZX81 Art" page!
> >- Does the picture have to be printed by Basic? Could it be put on the
> > screen with machine-code instead?
... ZxDraw ... (http://dskcenter/zxtools.html)
ZxDraw is a windows tool to create an Ascii picture under differents
formats... (32x22;32x24;34x22 and 34x24)
It allow to autoconpile this screen in severals kind of programas: Basic,
ASM ...
It easier to draw with this kind of software ... but, this picture isn't a
true ZX81 picture.
> We assumed that the easiest way is to draw in basic. But we ment
> real drawings, not converts (some progs allow do do that, as I
> > noticed on the Net). But final answer for Your question is: Yes, the
> > picture can be put on the screen with machine-code instead of Basic.
> > We simply want the compo to take a place at all, that's why we will
> > accept not only Basic stuff. It was rather like a hint, not any
> > injunction.
> > >- You say the picture doesn't have to all be on one line, but is it
> > > acceptable to have each screen line on a separate line of Basic? (I
> > > find this easiest to handle.)
> > In this case everything is allowed. Main idea is: to make whole
> > matter the most easy to authors. Do what You like the most.
> > Although... THAT You could understand in naughty way. ;) ;) ;)
A Basic one line (Print"****(768 chars) ) is difficult to type-in.
It can crash the basic editor, and if you had to change it, you had to press
the right cursor to the end of your PRINT line...
But, the end of line can't be diplayed!!!
You had to cut it.
> > >- In Basic you can't print on the bottom two lines of the screen, does
> > > that mean they can't be used?
> > They can be used if You know how to use them. :) For instance - my
> > pic will be WITHOUT them. :) But Yours - can have them. Just use the
> > method You like.
You had to change the System variable in DF-SZ address.
POKE 16418,0
It's the Basic prompt lines argument for Print functions.
0 = no line (22+2=24 screen lines)
1= 23 screen lines.
2= 22 screen lines.(default)
Nota:
You can't use the PRINT AT function to print in 23th and 24th lines. You
had to print 2 lines in a Print AT 32,22;"..."
You can't "plot" anything in this aera, you had to change another System
Basic variable.
> > >- Can entries be based on pre-existing photos, cartoons, etc., as long
> > > as the actual drawing is my own work?
> > Yes, of course. As for converts, we trust authors and we hope
> > everybody will make their pics by own hands. That's an official
> > statement. ZX81 has great graphic possibilities (
> > http://fetrmartin.free.fr/asciiart/images/zxdraw.png ,
> > http://fetrmartin.free.fr/asciiart/images/noyeux_joel.png ,
> > http://fetrmartin.free.fr/asciiart/images/passion.png ) but... well,
> > we're not the Amiga scene, so every good picture is welcomed.
ZxDraw can convert a BMP to a ZX81 Ascii characters codes.
> > >Thanks,
> > >-Rus.
> > Greetzzzzzzzz!!
> > Yerz/H-PRG
>
> FWIW, re: the bottom-two-lines problem, I did come up with a crude way
> of using them from Basic which goes like this:
(...)
You can use the 34x24 text mode in ASM.
But, this mode crash the basic editor! (you had to change several system
variable (E-line,VARS,CH-ADD...)
In a splash screen launcher, with a Load"" argument, if you don't had to
return
in the basic editor, you can display this kind of screen.
Regards.
Matthew Westcott
If anybody fancies giving this a go but isn't too keen on the scribbling
on graph paper / entering block graphics character-by-character bits,
then I've put together a little application (in Javascript) that you
might like:
http://matt.west.co.tt/demoscene/zxpaintyone/
I've already successfully used it for an entry of my own, which is
rather good if I do say so myself...