Random dweets | Dwitter

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.

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danny@hille.dk

remix of d/19377 by u/danny@hille.dk

function u(t) {

for(j=36;j--;)for(i=64;i--;)k=255,m=30,x.fillStyle=R(255-i*8,i*4,((i+S(t/9)*k+k)|(S(t)*i+j+C(t/8)*k+k))%k),x.fillRect(i*m,j*m,m,m)

Jul 12 2020 11:49 AM UTC

}// 130/140

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pow(2) - 1 ~ sierpinski triangle, now it might not be news you, but it kinda blew my mind!

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davidsover

remix of d/22840 by u/davidsover

function u(t) {

x.fillStyle=`hsl(${t*9},99%,50%`
for(j=9;j--;){x.fillRect(0,0,1100,20);x.rotate(Math.random()*12)};

Jun 3 2021 8:54 AM UTC

}// 100/140

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Color Changing Ball With Lines

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tomxor

remix of d/15534 by u/tomxor

function u(t) {

Z=_=>C(3*S(Y+C(X*3))+3*S(X+S(Y*3))+t*4)**3/6
for(c.width=i=1024;i-=1/16;x.fillRect(48*(X*2+Y+11),48*(X/2-Y+z),1,5))z=6-Z(X=i%8-4,Y=i/128-4)

Aug 28 2019 11:57 AM UTC

}// 139/140

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#lava

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KingTortle

function u(t) {

c.width=1920 // my first dweet
x.fillRect(t*2000%2920-1000, 0, 1000, 1000)

Dec 15 2024 3:41 PM UTC

}// 74/140

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yonatan

remix of d/10211 by u/BalintCsala

function u(t) {

for(k=i=1e3;z=i--/6;x.fillRect(k+S(m=(k*j&-b)**4)*r-z,z+C(m)*r,s=5e3/z,s))b=i%9>0,j=(i/k+t)%1,r=8e3/z+b*k/z,x.fillStyle=R(a=S(j*9)*99+z,a,a)

Oct 2 2018 5:23 AM UTC

}// 140/140

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Strange crystals v0.140b

Show more comments…
u/joeytwiddle

Blimey!
u/robbyg

I would love to read a write-up of this some time!
u/BalintCsala

They aren't really complicated, they draw a circle of rectangles with a pseudo random displacement to make it seem more natural. The track is just a bunch of rectangles
u/richev

Maybe not complicated once you understand how it works, but sure seems complicated to me. As @robbyg said, I'd love a detailed write-up.
u/yonatan

write-up: http://zozuar.org/txt/sc/
u/Joachim

#tunnel #cavern

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xem

remix of d/3325 by u/xem

function u(t) {

for(i=0;i<65;i++)for(j=0;j<65;j++)x.fillStyle=R(i*9,j*9,C(t)*99),x.fillRect(900+400*S((i+t/9)*3)*C((j+t/9)*1.5),500+400*S((j+t/9)*1.5),5,5)

Oct 21 2017 9:43 AM UTC

}// 139/140

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Some kind of Jupiter-y, Easter-egg-y thing?

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rep_movsd

function u(t) {

eval(unescape(escape`𭁼𯀨𨰮𭱩𩁴𪀽𞐹𛁘👙🐰𚐊𢰽𠰨𚰫𭀪𚠹𞐩𛁈🐨𭀪𚠷𚐥𝀬𡀽𢰾𜀿𦱛𜀬𜁝𛁛𜰬𢁝𛁛𝠬𢁝𛁛𞐬𞑝𧐺𦱛𜀬𞑝𛁛𢀬𝡝𛁛𢀬𜱝𛁛𞐬𜁝𧐊𩡯𬠨𮀮𨡥𩱩𫡐𨑴𪀨𚐬𢐽𜀻𢐼𝀻𚰫𢐩𮀮𫁩𫡥𥁯𚁘𚱄𦱉𧑛𜁝𛁙𚱄𦱉𧑛𜑝𚐬𮀮𬱴𬡯𪱥𚀩𒡘🐨𦀫𞐩𙐹𞐬𦐫🐡𦀪𞐻`.replace(/u../g,'')))

Feb 16 2022 6:19 PM UTC

}// 140/140

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10 PRINT ++

u/Joachim

#maze

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KilledByAPixel

remix of d/28650 by u/KilledByAPixel

function u(t) {

c.outerHTML=`${c='<marquee behavior=alternate '}direction=up height=${innerHeight}>${c}style=font-size:7em>🏀`

Jan 27 2025 11:36 PM UTC

}// 109/140

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Marquee Bouncer 🏀

u/tzador

) very nice and jumpy.. is there still space to add some ball rotation?

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taupelink

remix of d/35385 by u/taupelink

function u(t) {

for(i=z=1080;i--;x.fillRect(160*t,i,9,3))x.fillStyle=R(r=(z=z%4.8+4<<1)**2,r,r,.5),z+=5+S(t/4-z),z/=.7-S(i/300+z)/6,z*=2-S(z-t/3)*S(i/r/r)

May 19 2026 3:53 AM UTC

}// 138/140

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d/35391 Abstract cityscape

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KilledByAPixel

remix of d/31732 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪌽󭼽󜬳󜼊󠬽󭌿󦼮󛬮󠝝󞭁󟝛󧜊󩭯󬬨󪼽󮬽󜜳󜌪󭼻󪼭󛜻󠝛󪽝󟜨󭌿󨜫󚍚󚌭󜜩󚽚󚌡󮌮󩭩󫍬󤭥󨽴󚍫󙝷󛍫󛽷󯌰󛍡󛼷󛌱󚜩󚽚󚌭󭼩󚽚󚍷󚜫󦬨󭼭󜜩󚽚󚍷󚼱󚜫󦬨󛝷󛜱󚜫󦬨󜜭󭼩󟬱󚜺󣝡󭍨󛭲󨝮󩍯󫜨󚜪󞍼󜌩󙜸󚝡󟝂󦽫󧜬󦬽󫼽󟬨󨜫󜜩󙜸󟜽󠭛󚍫󚽯󚽺󚜥󮭝`.replace(/u../g,'')))

May 14 2024 4:21 AM UTC

}// 140/140

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Automata Sweeper 🧹

u/KilledByAPixel

produces a different result every time and eventually stops but it sometimes takes a while