Funny ATARI contest !

GFA, ASM, STOS, ...

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leonard
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Funny ATARI contest !

Postby leonard » Tue Aug 03, 2004 10:06 pm

Hi all !

Just to announce the release of a funny demo contest ! All details here:

http://leonard.oxg.free.fr/record16/sprite_contest.html

Feel free to post any comment on that forum !
Leonard/OXYGENE.

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Postby punkrulesok » Tue Aug 03, 2004 10:30 pm

Great idea :D

Unfortunately, I cant code at the level required for this contest, but will be watching closely. Atari demo records taking place in 2004 are very interesting :)

Maybe some old ST coders from the best groups can make an appearance here.

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Postby Ragstaff » Wed Aug 04, 2004 10:44 am

Agreed, this looks cool :)
Some may find sprites rather boring to look at, but I find the technical achievement fascinating :)

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Postby Cyrano Jones » Wed Aug 04, 2004 10:55 am

If someone wants to post up a sprite, I'll throw my sprite route at it. It won't win - its more optimised for huuuuge 4 plane sprites (as seen in Apathetic Games menu) - but I will bet it returns a respectable score :-)

Plus, I like the S.O.S. tune :)

The spriting bit has been optimised to hell by everyone. I expect the winner will have the fastest screen clearing rout.

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Postby mic » Wed Aug 04, 2004 12:54 pm

Great idea Leonard ! I can't wait to see if someone will challenge you or even if someone will crack this demo !

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Postby thothy » Thu Aug 05, 2004 8:32 am

!"§$% That damn password seems to have more than 7 letters.... good bye, brute-forcing...

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Postby leonard » Thu Aug 05, 2004 9:27 am

Hey Thothy, could you explain how do you know the passcode is less or more (or equal) than 7 characters ? :-)
Leonard/OXYGENE.

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Postby thothy » Thu Aug 05, 2004 3:05 pm

leonard wrote:Hey Thothy, could you explain how do you know the passcode is less or more (or equal) than 7 characters ?


Hi Leonard!

Quite simple: I've spotted the routine that calculates a checksum for each entered password in your demo and then checks if this checksum has a certain value. If it's the wrong value, there's one red flash and you can enter another password - if it's the right value, the demo continues with "Loading, Decrypting and Depacking the Demo"...
So I wrote a little brute force program that calculates this checksum for all possible words and prints out all "good" passwords. I've already checked all "good" passwords up to 7 characters (e.g. 'W4KD2Q7'), but none of them seems to be the right (the demo stops loading with a red+black background). For 8 and more characters, I would need much more time, so brute-forcing does not work here :-(

BTW: How many letters has the right password?

BTW2: Great idea, this contest :-)

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Postby yann_g » Thu Aug 05, 2004 4:16 pm

thothy wrote:BTW: How many letters has the right password?


and what is it? ;)

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Postby [ProToS] » Thu Aug 05, 2004 6:11 pm

looks like a crackme contest and not a sprite record contest :twisted: :D
SeeU
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Postby leonard » Thu Aug 05, 2004 10:03 pm

Hi thothy !

Nice to see you look at the code. It's funny to see your "W4KD2Q7" "first stage" working password.

How many letters ? :-) Well it's a secret info ! All I can say is the password does not look as your "random like" 7 letters proposition.

Good luck !

( If you think you can't use brute force for password cracking, maybe you can use brute force to beat the sprite record and so you'll get the password :-))
Leonard/OXYGENE.

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what you don't know....

Postby Gunstick » Fri Aug 06, 2004 7:26 pm

.... is that I have a better than 220 sprite demo ready and that Leonard knows that :-)
So, it's easy for me to get the password. I just release the screen.

But I wanted to have something else than the SOS tune in it. So for the moment it's not released.

Btw, it was programmed on linux under steem.
Maybe I'll release it when there will be a Saint for linux, hahaha.

Georges

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Postby bodkinz » Fri Aug 06, 2004 7:33 pm

gunstick is good.. ziggy stardust is better

:wink:

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someone post something, i'm bored :)

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Postby Gunstick » Fri Aug 06, 2004 10:05 pm

bodkinz wrote:gunstick is good.. ziggy stardust is better

:wink:

bodkinz


well if Ziggy wants to give it a try.

I will also release my source code when I publish the screen.
We are in an open source world, are we?

Some code you can already see, if you search for an YM replay routine I posted somewhere in this forum.
Because it's over 220 sprites with the scroll and music. So it has to get an optimization too.

Georges

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Postby ASYLvM » Sat Aug 14, 2004 9:41 pm

C'Mon already!

Somebody show sumthing.

I really wanna see this screen.



arsy. (|)

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Postby bodkinz » Sat Aug 14, 2004 10:00 pm

well if you knw what you are doing then go for it.. if you don't then shut up :oops:

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someone post something, i'm bored :)

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Postby Chetic » Sun Aug 15, 2004 8:03 am

:o

I'd totally be in this... If I knew how to code xD
I could always use that infinite sprites thing by simonsunnyboy :P (j/k)

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Postby leonard » Tue Aug 31, 2004 9:34 pm

Hey guys, no news from the sprite contest ??
Leonard/OXYGENE.

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:)

Postby C-Rem » Tue Aug 31, 2004 9:51 pm

STGHOST works hard on it ...

Tooseb has tried all the WE ( with no sucess ) :cry:

i think that STGHOST will be the winner :D

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Postby Gunstick » Tue Aug 31, 2004 10:47 pm

mine is finished (since 2 months).

it just lacks the music.
Please suggest which music you would like to hear in the screen.
No sid voice or digidrums for obvious reasons :-)

Georges

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Postby leonard » Tue Aug 31, 2004 11:13 pm

humm don't have any idea about these obvious reasons. Why don't you put a 4 voices soundtrack ? :-)

Well the original madmax S.O.S tune may be perfect for that highly old-skool stuff !
Leonard/OXYGENE.

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Postby leonard » Tue Aug 31, 2004 11:14 pm

by the way, release your screen fast because STGHOST may crack the password !! :-) If you release your demo i'll publish the password and so I'm sure to not loose 50euros ! :-)
Leonard/OXYGENE.

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yep!

Postby 2nd.evidence » Wed Sep 01, 2004 9:07 am

oh yes I tried!... but not all the week-end, one must know when he has to stop (to drink, smoke, sleep... or worse! 8) )

a nice challenge Leonard!

I tried again a bit yesterday and finally found the algo used (and it's reversed method, thanks to the net!)

GO ON STGHOST !!! :wink:
TooSeb / MJJProd

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Postby keops » Sun Sep 05, 2004 12:44 am

Leonard you sicko ;)

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Postby ljbk » Sun Sep 12, 2004 1:11 pm

Well, here is my cheating try at it :D
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