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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mxfh

remix of d/2442 by u/mxfh

function u(t) {

c.width|=b=50
h=b-S(t)*b*5
for(e=6.28;e>0;x.lineTo(d*C(e-=~~(h%e)?.01:1/e)+h*C(s=d/b*e)+960,(d)*S(e)-h*S(s)+540))d=300-b
x.fill("evenodd")

Aug 29 2024 12:50 AM UTC

}// 138/140

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#opposites #Bouba #Kiki

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CaptainMeat

remix of d/3100 by u/New_Core

function u(t) {

c.width|=0;for(i=130;i--;)x.ellipse(960,540,i*4,150*S(t+i/50)+150,2*S(t/4)+i*2.1,t,7+t);x.fill()

May 3 2022 2:34 PM UTC

}// 96/140

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KilledByAPixel

remix of d/17468 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𚰫𭀥𝀾𜐿𥀽𧰽🡓𚀫𚱴𚡴𚐺𣰽𦱻𦀺𭀪𜰰𙐱𞀵𜀫𝀹𛁙𞡴𚠲𚰱𝠹𛁡𞠰𛁢𞠰𯑝𒡦𫱲𚁯𘁯𩠠𣰩𨠽𚰫𫰮𨠬𨠽🐲𯁔𚀩🠮𞐹𞐹𞐶🱏𛡰𭑳𪀨𮱘𞡯𛡘𛑓𚁡👯𛡡𚐬𦐺𫰮𦐭𠰨𨐩𛁡𞡡𚠮𞐷𚰨𨠭𜠿𜐺𛠲𚐪𥀨𚐬𨠺𜁽𚐺𜀬𮀮𩡩𫁬𤡥𨱴𚁯𛡘𛁯𛡙𛁱👢𚠪𛠸𛰸𛁱𚐻`.replace(/u../g,'')))

Feb 11 2020 7:48 PM UTC

}// 140/140

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Tree Farm #growth

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rodrigo.siqueira

remix of d/21645 by u/Pascal

function u(t) {

c.width|=0,w=960
for(i=w*2;i--;x.fillRect(w+w*X/Z,w-Y/Z*w,s=(8/Z)**5,s))
X=3*C(U=i+t)+C(V=t+i/2),Y=C(i*i)*S((i*3)+t)+C(V)*T(V)-2,Z=S(U)-5

Jun 4 2021 12:36 AM UTC

}// 137/140

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Double Helix #dna #spiral

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iverjo

function u(t) {

c.width=384;for(i=20;i--;)for(j=9;j--;)if(!i||(i^j)%2){x.fillStyle=R(a=i?0:240),x.fillRect(i*20+j%2*4*S(t)-25+9*S(j),j*20,i?20:420,i?20:2)}

Mar 2 2017 6:29 PM UTC

}// 139/140

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Optical illusion thingy. It's supposed to look like the red lines are not really straight and parallel. #bartjs

u/sfz

it works, trippy!
u/iverjo

Fun fact: This was actually the first idea I ever had for a dweet, back in december 2015 when sigve made https://github.com/sigvef/arktis-tweet-demo/
u/donbright

great illusion
u/SpecialAgent

Expecting a gorilla and some barrels to come hurtling down. Love it.
u/iverjo

#opticalillusion

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KilledByAPixel

function u(t) {

with(x)t?beginPath(setLineDash([99])):fillRect(0,0,2e3,2e3),arc(960,540,t*49,S(t),9),strokeStyle=`hsl(${t*29} 99%50%`,stroke()

Jan 11 2020 5:15 AM UTC

}// 126/140

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Spiral Dash 2

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Agnes

function u(t) {

W=t?W:"";
S=(Math.random() + 1).toString(36).substring(2,3+W.length)
Q=[]
for(e in c){Q.push(e)}
Q.forEach(e=>e.includes(S)?W=S:0)
throw(W)

Nov 17 2023 1:46 PM UTC

}// 139/140

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Substring explorer

u/Agnes

Every frame, this tries to find a random substring of length L that appears somewhere in the member variables of the Javascript canvas object c. If it finds a match, L is increased by one.
u/Agnes

I think this crashes if W.length gets too long but I don't think it's ever going to get much further than 5 in the lifetime of the universe so we're fine.

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metamero

function u(t) {

Dec 14 2018 9:00 PM UTC

}// 0/140

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u/pavel

‌‌

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ArthurThuczsec

remix of d/26367 by u/4ce

function u(t) {

for(t?c.width|=i=n:X=Y=n=601,onmousemove=e=>{X=e.x,Y=e.y};i--;)x.lineTo(960+C(i*X+t)*n,540+S(i*Y+t)*n);x.stroke();throw X+' '+Y

Oct 21 2022 1:54 PM UTC

}// 127/140

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slight golf

u/4ce

Thanks! But 601 maybe, too much, because: shapes in example like circle, n like circle radius, Math.min(c.width,c.height)/2==540 ; But 601 good too! ~_^

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taupelink

remix of d/22420 by u/taupelink

function u(t) {

for(i=k=150;--i;x.fillRect(k*X,k*Y,w=i*.8**t,w))f=i*t,X=f*f%13,Y=X*f%8,x.fillStyle=`hsl(${i/3},${40/T(h=T(Y*.6%T(X)))}%,${h%S(X**C(h))*i}%)`

Apr 10 2021 1:32 AM UTC

}// 140/140

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d/22429

u/DataMeta

very cool!