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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richev

function u(t) {

for(i=390;i<690;i+=.1)
x.beginPath(),
x.strokeStyle=`hsl(${-i+680},99%,60%)`,
x.arc(960,900,i,3.14,0),
x.stroke();

Aug 5 2018 12:07 AM UTC

}// 114/140

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A minimal rainbow - can anyone squeeze in a cloud at each end? (I ran out of characters)

u/magna

100: for(i=300;i--;x.stroke())x.beginPath(x.strokeStyle=hsl(${290-i},99%,60%),x.arc(960,1080,390+i,0,7)

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MiniGirlGeek

function u(t) {

p=Math.PI
c.width=1920
for(i=0;i<500;i++){
r=(50*C(3*t+o))+100;
var o=i*((2*p)/500);
x.fillRect(910+300*C(o), 540+300*S(o), r, r)}

Jan 1 2018 1:08 AM UTC

}// 130/140

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CodeUh

function u(t) {

W=c.width=1920;x.translate(W/2,0);for(i=0;i<W/2;i++){x.fillRect(1,1+i,5,5);x.rotate(C(d=t+i/.1));x.fillStyle=i%2==1?"#006600":"#660000"}

Jul 17 2017 6:18 PM UTC

}// 136/140

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u/joeytwiddle

I like how half of the points stay still through the middle of the swing
u/iverjo

Kinda intriguing

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Axioplase

function u(t) {

c.width=1e3
f=(t,p,q)=>x.rect(p+400-(p+t)**2.3*9,q+300-(q+t)**2.3*9,s=50+t**3*9,s)
for(i=1e2;i--;)f((t+i/7)%9,2*S(t),1.3*C(t))
x.stroke()

Aug 9 2025 3:40 PM UTC

}// 137/140

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bad #tunnel

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firegodjr

function u(t) {

c.width=1920
π=Math.PI
for(i=0;i<9;i++)
x.arc(f=960,540,50*i,S(t)*π,S(i/2+t)*π);x.stroke()

Jun 3 2018 6:16 PM UTC

}// 90/140

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Spinners

u/BirdsTweetCodersDweet

#geometric

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pythech

function u(t) {

with(x)for(i=200;i--;fillRect(i*9,!fillText("😁",i%9*200,i*30),9,2e3))fillStyle=`hsl(39,80%,${Math.abs((i+t*60)%62-31)*2.8}%)`,font="5em x"

Jun 6 2018 8:09 PM UTC

}// 138/140

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based on "swimming fish optical illusion"

u/pythech

works with Apple emojis, probably doesn't work with other devices
u/S.T.L.K.R.

STARE AT IT FOR 10 SECONDS
u/iverjo

#opticalillusion

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veubeke

remix of d/3558 by u/cantelope

function u(t) {

π=Math.PI;for(c.width=i=512;i--;x.beginPath(x.stroke()))x.arc(i*32%544-16,i/17<<5|16,16,t-t%π+Math.min(t%π,π/2),t-t%π+4.5+Math.max(π/2,t%π))

Nov 27 2017 8:35 PM UTC

}// 140/140

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u/Xen

me likey
u/cantelope

nice :)
u/katkip

wait what

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bencoveney

function u(t) {

for(x.drawImage(c,0,1),i=0;i<999;i++,x.fillStyle=`hsl(${S(t)*i},70%,50%`,x.fillRect(i*2,0,2,1));

Nov 2 2019 1:54 PM UTC

}// 96/140

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learning some better minification techniques

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BriSeven

remix of d/17887 by u/BriSeven

function u(t) {

c.width+=0;x.font='1cm a'
x.save()
x.scale(9,9)
x.translate(109,60)
x.rotate(t*13+C(t*6)*2)
x.fillText('📀',-19,16)
x.restore()

Mar 11 2020 1:33 AM UTC

}// 126/140

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disc read error: adjusted to be more centred in some browsers.

u/BriSeven

this does some very strange transformation artefacts in safari 12.1

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taupelink

remix of d/24879 by u/taupelink

function u(t) {

eval(unescape(escape`砮獴牯步却祬攽✣㤹䍃䙆〸✻砮晩汬却祬攽✣㘳㤹✻景爨洽ㄵ〻洭ⴾ㈪⩴㭸⹦楬氨砮獴牯步⠩⤩砮扥杩湐慴栨砮汩湥坩摴栽洯琯琩ⱸ⹡牣⠹㘰⨨ㄫ匨洫琯洩⤬㔴〪⠱⭓⡭⩭ⴳ⨪⵴⤩Ɑ⩴⼲⨪琬〬琩`.replace(/u([^D].)/g,'$1%')))

Feb 9 2022 2:23 PM UTC

}// 137/140

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d/24900

u/taupelink

#waitforit abstract birdlike forms
u/UEZ

This looks very amazing! #birds #abstract #art