Top #retro dweets

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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    u(t) is called 60 times per second.
    t: Elapsed time in seconds.
    S: Shorthand for Math.sin.
    C: Shorthand for Math.cos.
    T: Shorthand for Math.tan.
    R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5)
    c: A 1920x1080 canvas.
    x: A 2D context for that canvas.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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jylikangas

remix of d/7121 by u/jylikangas

function u(t) {

for(c.width=-1,Y=w=89;Y--;x[f](Y*9+w*S(t)-w,0,9,60+S(Y^w)*20))x[f='fillRect'](w-S(v=Y/w+t)*Y,w+799/Y,v*w&8?2e3/Y:x.fillStyle=R(Y*3,0,w),w/Y)

Oct 8 2018 8:29 PM UTC

}// 140/140

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OutRun: Neon City edition

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u/BalintCsala

#retro
u/katkip

#d3
u/f8f82804

#outrun
u/iverjo

Inspiring!
u/iverjo

#neon
u/donbright

!!!!!!!!
u/lionleaf

Incredible! #city #track #train
u/alien

wow
u/magna

Musical edition: https://dweetplayer.net/demo/v1/*/10287@190/…
u/rodrigo.siqueira

Similar to Atari's Enduro game with city skyline

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tomxor

remix of d/21704 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𮁛𩠽𙱦𪑬𫁒𩑣𭀧𧐨𜀬𜀬𨰮𭱩𩁴𪀽𜐸𜀬𪐽𫀽𜐵𜰰𚐻𪐭𛐻𮁛𩡝𚁘𚠶𛁙𚠶𛀱𚱋𛀵𚐩𦀽𪐥𞐰𛰳𛁙👩𛰹𜀬𡠽𭀪𝐸𛑩𛱬𛁁👘𚰸𚡓𚁾𡠯𞐫𦐯𞐩𛁋👆𙐱𛰴𚰡𘐨𠐯𜐷𛐱𝠯𜐸𯁙𛰴𛐱𜀯𝑼𠐫𜠦𜠩𛰲𛁸𛡦𪑬𫁓𭁹𫁥👠𪁳𫀨𙁻𪐪𜐲𜁽𘀹𞐥𙁻𢰪𞐹𯐥𨀻`.replace(/u../g,'')))

Feb 18 2021 2:32 PM UTC

}// 140/140

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#retro #crt #default @60Hz-ish

u/Odog8

Beautifulllll
u/Qwitter

cool!
u/neimad

This is amazing.
u/aleamb

superb!
u/magna

YES!!

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tomxor

function u(t) {

c.width=w=120
for(i=w*33;i--;x.fillRect(i%w,i/w*2,1,2))f=i%w+t*60,n=T(0|(i/w+f^f-i/w)/(t**.7+6)),x.fillStyle=R((n&1)*i/n/8,n**n,(n&3)*i/n/4)

Nov 3 2018 5:53 PM UTC

}// 140/140

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#retro #fractal #game

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u/tomxor

For the lazy game designer... Just add chip tunes and a player :D
u/tomxor

#crt #degauss #sidescroller
u/magna

Awesome!
u/magna

I had a RGB CRT setup, but I hadn't been able to fit any interesting patterns: d/7512
u/tomxor

I had a look at yours magna, they are true crt, much more realistic i think. The scan lines on this are just a sideeffect I exploited and it was easy to add colour distortion in the R().
u/magna

Here we go: d/10843
u/C010011012

is it a cellular automata?
u/tomxor

Yes and no, it's a fractal n=T(0|(i/w+f^f-i/w)/(t**.7+6)) which is just a more elaborate variation of serpinsky triangles to produce more interesting patterns. Some fractals are automata, but not all automata are fractals, see here: https://en.wikipedia.org/wiki/Rule_90
u/tomxor

The implication is serpinsky triangles are computationally reducable, meaning it does not have to be computed in the same way as a cellular automata i.e state can be computed at step t directly without traversing intermidiate steps.

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jylikangas

function u(t) {

for(c.width=i=110;--i;)for(j=62;j--;x.fillStyle=R(0,0,L),x.fillRect(i,j,1,1))L=j*i&443?99:199,(j>24+S(i|3)*9||j%7<1)&&j<48+C(i-j-t)*9&&(L=0)

Mar 5 2018 6:15 PM UTC

}// 140/140

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Pixel City at Night

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tomxor

remix of d/21705 by u/tomxor

function u(t) {

b='渀渀漀漀澀柀柠揸懿惿怿怏'
eval(unescape(escape`𩡯𬠨𪐽𜀻𪐼𜡥𜰻𤠫👔𚁙𛰹𚱴𚠳𚐩𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱩𚠱𜠰𯐠𞐹𙐤𮱢𛡣𪁡𬡃𫱤𩑁𭀨𦐽𪐯𞐰𚐾🠨𤠼𜐵🱒𞠭𝀭𤠩𙠱🰴𝀺𞁽𙑠𛁒👩𙐹𜀯𜰬𮀮𩡩𫁬𤡥𨱴𚁒𚠶𛁙𚠶𛁩🰱𛠵𞡣𛡷𪑤𭁨🐱𞀰𛁩𚰫🰵𞠹𞐩`.replace(/u../g,'')))

May 14 2021 6:27 PM UTC

}// 140/140

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Broken Video Game #retro #crt #atari

u/Xen

nicely done!
u/magna

YES!
u/DataMeta

wowie
u/aleamb

great!

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BackendForth

remix of d/21811 by u/BackendForth

function u(t) {

c.width=1920
for(k=9;k--;)
for(i=10;i--;)for(j=25;j--;)x.fillRect(400+i*5+300/(1+2**(-39*S(t+k/9*t)+j))+k*100,540+j*8,5,8)

Mar 4 2021 2:48 AM UTC

}// 122/140

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tomxor

remix of d/21734 by u/tomxor

function u(t) {

b='氀氀氀氀氀氀渀渀渀渀漀漀澀柀柠揸懿惿怿怏';eval(unescape(escape`𩡯𬠨𪐽𝠷𜠻𪐭𛐻𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱴𚠸𜀫𦐪𝱽𘀹𞐥𝐰𙑠𚑢𛡣𪁡𬡃𫱤𩑁𭀨𦐽𪐾🠵𚐾🠨𦀽𪐦𜐵𚐦𜐦𙡸𛡦𪑬𫁒𩑣𭀨𚁩𙠱𝠿𝀵𚱘𞠷𜰭𦀩🀼𝀬𜠴𚱙🀼𝀬𜐶𛀱𝠩`.replace(/u../g,'')))

Feb 21 2021 5:43 PM UTC

}// 133/140

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#retro #atari #GEM "Rainbow" #TOS 1.04 logo

u/tomxor

#pixelart
u/tomxor

Traced from a real TOS ROM running on Hatari to get the pixels right.
u/magna

Lovely!
u/New_Core

nice

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Joachim

function u(t) {

eval(unescape(escape`󩭯󬬨󪜽󮬽󨼮󭽩󩍴󪌽󜼰󜌻󪜭󛜻󮌮󨽬󩝡󬭒󩝣󭌨󬌿󞜫󪜪󜬷󜌺󨜽󜜴󝌫󠼨󭌩󚬱󜬷󛍰󟼶󜌫󤼨󭌫󪜪󜼩󚬵󜌺󝬰󚽡󛼵󛌹󛍰󟼵󜌺󞜩󚝰󟝩󟌲󛍸󛭦󪝬󫍓󭍹󫍥󟝒󚌡󪜦󙭺󛍓󚍩󛼶󜌩󚬹󞜫󤼨󪜭󭌪󞜩󚬵󛍩󙭺󚜬󮌮󩭩󫍬󤭥󨽴󚌰󛍩󛍺󛌱󚜬󮌮󩭩󫍬󥍥󮍴󚌧󤍏󣭇󙼬󭌪󮬥󜼬󞜩`.replace(/u../g,"")))

Mar 19 2022 3:02 PM UTC

}// 140/140

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PONG

u/magna

WOW!
u/Joachim

#pong #game #retro #crt

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vinca

remix of d/13321 by u/vinca

function u(t) {

for(c.width=150,x[r="fillRect"](0,0,150,75),i=11250;i--;)x.fillStyle=`hsl(${a=t&((X=9*S(t)+i/75)&(Y=i%75))*t,99*a},90%,50%`,x[r](X,Y,1,S(a))

May 1 2019 3:13 AM UTC

}// 140/140

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u/joeytwiddle

It has a nice fuzzy #tv effect
u/DataMeta

Keeps on giving! #waitforit
u/MAxSaL

I love watching this!
u/magna

#retro #crt

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marc8

function u(t) {

c.width=w=360;i=0
r=_=>Math.random()*256
while(i<=w){x.fillStyle=i<w?R(r(),r(),r()):"#43A"
x.fillRect(0,i,w,i+=2)}x.fillRect(40,20,280,160)

Mar 4 2019 10:51 PM UTC

}// 139/140

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u/tomxor

Oh crap :D it all came flooding back, now i gota go play llamatron
u/tomxor

#retro #amiga
u/tomxor

I love this, we need more retro!
u/tomxor

I did the atari loading bee :P d/12717
u/Jezza

I love this!
u/marc8

#c64
u/UEZ

#decruncher

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