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Expanding Universe by JAC! [web]
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screenshot added by JAC! on 2010-10-19 17:41:10
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release date : october 2010
  • rulez 21
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alltime top: #5873
added on the 2010-10-19 17:41:10 by JAC! JAC!

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>> Expanding Universe <<

Two 32 bytes intros for the Atari 800 XL (PAL).

There already was evidence that the universe is expanding permanently. Now there is also evidence, that it originally started with 32 bytes ;-)

This one shows a twirl of colored particles which expands with every iteration. In the end it will become a chaotic star field. At certain times during the expansion, there balance between dark matter and normal matter is broken. This is indicated by a changing background color. If the background changes back to black again, it is save to turn off the demo without destroying the earth.

The first version uses a black background at the expense of having a group of smaller, even more chaotic Atari particles in the upper quarter. The second version forces all particles to be small and to behave less chaotic at the expense of having a background based on the blue sky instead of the dark space.

Here is your youtube video. I hope some people will see it before the next upload rush next weekend.

Notes:
The Atari's executable leaves you with 26 bytes of code for this (6 bytes header). The executables start automatically from a game DOS or an emulator. When using MyDOS or ATARI DOS, the executable has to be started via "M - Run Address" at address "2000".

Created using WUDSN IDE.
added on the 2010-10-19 17:43:41 by JAC! JAC!
32bytes with design! I like.
rulez added on the 2010-10-19 17:57:04 by wysiwtf wysiwtf
wow :) JAC!
rulez added on the 2010-10-19 19:03:13 by Grey / MSB Grey / MSB
JAC - Rrrola of the Atari x bytes scene! :)
rulez added on the 2010-10-19 20:00:23 by Nitro/Black Sun Nitro/Black Sun
Hardware sprites power :)
rulez added on the 2010-10-19 20:42:54 by すすれ すすれ
Just for the size ;)
rulez added on the 2010-10-19 20:57:42 by emkay emkay
Wow, too cool for 32b. On AtariXL. Definite thumbs up!
rulez added on the 2010-10-19 21:20:55 by Optimus Optimus
nice
rulez added on the 2010-10-19 22:58:48 by Exin Exin
cute :)
rulez added on the 2010-10-20 00:09:19 by Skate Skate
Pretty cool.
rulez added on the 2010-10-20 15:45:07 by Intrinsic Intrinsic
Here's your thumb for tiny coding!
rulez added on the 2010-10-20 22:18:15 by baah baah
Colourful stuff on Atari XL = always a "thumb up".
rulez added on the 2010-10-20 23:18:25 by YERZMYEY/H-PRG YERZMYEY/H-PRG
Thanks! And here are the lyrics, for those who are familiar with "ancient tongues".
Code:* = $2000 loop inx ;Next double scanline wait cpx $d40b ;Wait for next double scanline beq wait stx $d012 ;Set missile 0 rainbow color and #1 ;Use lowest bit of previous line adc $00,x ;Carry will be set due to CPX sta $00,x ;ZP,x will wrap at $ff to $00 sta $d004 ;Set missle 0 horizontal position asl $d402 ;Reset DL low pointer to force blank line asl $d011 ;This will put "10" into bit 1 and ;0 because $d011 is trigger 0 bcc loop ;Carry is cleared due to ASL above


The youtube is jerky as always due to the lame 30 FPS replay, so I recommend the use the real thing or and emulator. It took some time but the uploaded version now runs on both.
added on the 2010-10-20 23:22:33 by JAC! JAC!
I'm deeply impressed what's possible with a few bytes...
rulez added on the 2010-10-21 11:26:30 by Tigerduck Tigerduck
yes thats cool
rulez added on the 2010-10-21 16:39:08 by auld auld
great.. hey Peter :)
added on the 2010-10-21 22:50:18 by alk alk
oooops I mean [x] rulez of course
rulez added on the 2010-10-22 00:23:34 by alk alk
Nice one Peter, keep 'em goin'!
rulez added on the 2010-10-22 03:24:34 by iks iks
nice
rulez added on the 2010-10-23 14:52:40 by Sir Sir
cool!
rulez added on the 2015-03-18 18:03:44 by HellMood HellMood
As HellMood said!
rulez added on the 2015-08-02 20:02:27 by miker miker
very creative :D <3
rulez added on the 2017-05-22 18:56:56 by p0ke p0ke
Awesome!!
rulez added on the 2017-05-22 19:12:09 by mad mad
neat-o-tastic!
rulez added on the 2017-05-22 19:34:55 by sensenstahl sensenstahl

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