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/21744 by u/Pascal

function u(t) {

for(x.fillRect(0,0,c.width=i=w=1e3,w);i--;x.strokeStyle='#00f1')x.lineTo(490+w*C(a=i-t)/(z=S(a+t)-3),300+w*S(i*2)*S(i+t-z)/2)
x.stroke()

Feb 23 2021 8:02 PM UTC

}// 137/140

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quick play

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Barth

function u(t) {

for(a=990,c.width|=0,x.font="99px a",i=0;i<20;i++)x.lineTo(99*i,9*S(i-t)+a);x.fill(),x.translate(a,a),x.rotate(C(t)/5),x.fillText("🚴",0,0)

May 22 2018 11:10 AM UTC

}// 138/140

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Xen

remix of d/20889 by u/lerc

function u(t) {

with(x)fillRect(!setTransform(1,n=(C(S(t)*7))/4,-n*3,1,z=1337,507),!drawImage(c,-z,-500),9,19),fillStyle=`hsl(${t*z} 99%50%`
Xen

Dec 1 2020 7:08 PM UTC

}// 128/140

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Golf and Play for more rainbow

u/lerc

I tried a hsl but couldn't fit it. Nice to see the broken hsl format works. Is it tollerant across browsers?
u/Xen

highly broken and worse on phones but i wanted my 128 lol

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KilledByAPixel

function u(t) {

with(x)for(t?R=R=>C(d*i**R)*800:d=Date.now(translate(960,540)),fillText(1,0,i=9);i--;rotate(-a))rotate(a=R(2)),drawImage(c,0,0,R(3),R(4))

Aug 22 2022 7:13 PM UTC

}// 137/140

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Tiny Fractal Generator - Refresh for a new one

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taupelink

function u(t) {

eval(unescape(escape`󬬽󣝡󭍨󛭲󨝮󩍯󫜻󩬽󫬽󟭲󚌩󚭮󯌰󞽰󟜵󛼱󜬫󩬨󝼲󜌩󛼵󜌴󜌻󨜽󩬨󜜲󚜫󝜻󨬽󩬨󞜩󚼵󞽦󫽲󚍭󟝴󟼰󞬳󩜴󞽭󛜭󟬲󩜴󞽸󛭳󭍲󫽫󩜨󚜩󮌮󨭥󩽩󫭐󨝴󪌨󩼽󫜥󬌩󛍸󛭡󬭣󚍭󙝡󚬨󜬴󜌰󛽡󯌰󚜬󚌨󫜯󨝼󜌩󙝢󯌰󚜪󚌱󜬰󜌯󨭼󜌩󛍭󚬪󩼯󬌬󩌽󝜪󬌯󩼬󩌭󝬮󜬪󚍧󛽰󚜪󚬮󝜩`.replace(/u../g,'')))

Jul 11 2022 12:50 PM UTC

}// 140/140

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d/25794

u/taupelink

#B194
u/taupelink

hat-tip to u/tomxor for reminding me about the 194 compressor

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joeytwiddle

remix of d/33381 by u/UEZ

function u(t) {

for(W=c.width=500,x.globalAlpha=.01,i=3e3;i--;x.fill())x.beginPath(),x.arc((i*i%W)+i/99*S(i*7+t),W-2*((i*i*C(i)+t*20)%W),i/23,0,7)

Jun 12 2025 11:36 AM UTC

}// 130/140

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#smoke redux

u/joeytwiddle

If it feels a bit slow, add t*=2; at the start. It sometimes runs at a slower framerate.

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DonKarlssonSan

remix of d/5923 by u/DonKarlssonSan

function u(t) {

if(!window.a)a=new AudioContext,o=a.createOscillator(),o.connect(a.destination),o.start()
c.onmousemove=d=>o.frequency.value=d.clientX*3+440

Jan 11 2018 7:54 PM UTC

}// 140/140

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📣📢 Move the mouse! 🔉🔊

u/katkip

#audio ouch

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sfz

remix of d/2376 by u/magna

function u(t) {

for(i=0;i<(半=500);i++)x.fillStyle=R(0,i?w:0),x.fillRect(i?2*半+i*C(T=t-(Math.random()<3e-4)*.2):x.globalAlpha=.1,i?半+i*S(T):0,z=i?8:w=2e3,z)

Apr 1 2017 4:12 PM UTC

}// 139/140

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Green, but the blips are harder to see

u/sfz

Increasing alpha helps see them, but makes the line sweep less cool
u/magna

They are ninjas. Harder to see.
u/donbright

lol nice

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myro

function u(t) {

w=1080;c.width=w
for(r=0;r<w;r++){a=(r+t*60)%6.28
u=r*T(a**a)
v=r*1/S(a)
x.rotate(.003),x.fillText('o',u+w/2,v+w/4)}

Dec 1 2021 10:03 AM UTC

}// 116/140

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3D attractor?

u/Xen

nice!

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dabl03

function u(t) {

eval(unescape(escape`𩀽𫡥𭰠𡁡𭁥𚀩𞱴👛𩀮𩱥𭁓𩑣𫱮𩁳𚀩𛁤𛡧𩑴𣑩𫡵𭁥𬰨𚑝𞱷🐵𜀰𞱣𛡷𪑤𭁨👷𚠴𞱷𪑴𪀨𮀩𮱴𬡡𫡳𫁡𭁥𚁷𛁷𚐻𨑲𨰨𜀬𜀬𭰬𜀬𜠪𜰮𜐩𞱦𫱲𘀨𫁥𭀠𪐠𪑮𘁴𚑻𬱡𭡥𚀩𞱲𫱴𨑴𩐨𭁛𪑝𚠰𛠱𜀴𝰩𞱲𩑣𭀨𜀬𜀬𜐰𚱩𚠱𜀬𛐳𜀰𚐻𬡥𬱴𫱲𩐨𚑽𬱴𬡯𪱥𚀩𯐠`.replace(/u../g,'')))

Aug 3 2024 10:54 PM UTC

}// 140/140

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Seconds and minutes clock

u/dabl03

My unpackaged code -> let time=new Date(); time=[time.getSeconds(),time.getMinutes()];w=500;c.width=w*4;with(x){/* When placing it, I avoid x.translate , x.arc..*/translate(w,w);/* 500,500*/arc(0,0,w,0,2*3.1);for (let i in t){save();rotate(t[i]0.1047);/* Imita -> t[i](Math.PI/30)*/rect(0,0,10+i10,-300);/* If it were 300 it would be the other way around*/restore();}stroke();}
u/dabl03

I edited my code in a notepad that removed the *, here is my fixed code: t=new Date();t=[t.getSeconds(),t.getMinutes()];w=500;c.width=w*4;with(x){/* When placing it, I avoid x.translate ,x.arc..*/translate(w,w);/* 500,500*/arc(0,0,w,0,2*3.1);for (let i in t){save();rotate(t[i]*0.1047);/* Imita -> t[i](Math.PI/30)*/rect(0,0,10+i*10,-300);/* If it were 300 it would be the other way around*/restore();}stroke();}
u/lewdev

#analogclock