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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Current theme challenge: #Food

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lewdev

remix of d/28640 by u/lewdev

function u(t) {

eval(unescape(escape`䄽猽㹸⹦楬汓瑹汥㵳ੲ㵍慴栮牡湤潭੸⹦潮琽∲捭✢ੁ怣〰〱怊琿砮晩汬剥捴⠰ⰰⱷ㴲攳ⱷ⤺昽孝ੁ怣てだ੦潲⡩㴳㤻椭ⴻ晛楝㵲⠩㸮㤹㼰㨨晛楝簰⤫㤩砮晩汬呥硴⡲⠩⨹㸾〬椪㔰ⱹ㵦孩崪㠩`.replace(/u([^D].)/g,'$1%')))

Dec 19 2025 10:57 PM UTC

}// 135/140

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#Matrix Rain with #numbers HD

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Xen

remix of d/10189 by u/QXY

function u(t) {

for(c.width|=i=99;i--;x.stroke())x.lineWidth=i,x.beginPath(),x.arc((o=i&1?-99:99)*2*C(t)*S(t*.2)+960,o*5*S(t*3)*C(t)+520,i**2,0,7)

Sep 30 2018 9:57 PM UTC

}// 130/140

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sandromiccoli

function u(t) {

c.style.background='#000';w=2e3;x.rotate(137.5);x.fillRect(50,0,(50*t)%2500,5);x.fillStyle=R(o=(t%10>5)?255:150,(t%20>15)?255:0,0,0.5)

Sep 14 2021 1:09 AM UTC

}// 134/140

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☀️

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Jezza

remix of d/13814 by u/Jezza

function u(t) {

A=M=(Y=frame)/120-4.5;for(X=1919;X--;){B=N=X/120-8;for(i=9;i--;)[A,B]=[C(A-B)+M,S(A+B)+N];x.fillStyle=R(Z=A*B*9+99,Z,Z);x.fillRect(X,Y,1,1)}

May 14 2019 2:08 AM UTC

}// 140/140

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u/username

wow holy fuck, this actually looks like a photo
u/13thptr

übercool
u/magna

How in...
u/katkip

#slowrender
u/d0n.key

No clue what it is, but it looks realistic :D
u/iverjo

Wow! How does this work?

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baon

remix of d/28893 by u/baon

function u(t) {

if (t>0) return
for(i=0;i<256;i++) for(j=0;j<256;j++)
a = (i|j)%17 ,x.fillStyle=R(a,a,a,a), x.fillRect(i*4+450, j*4, 4, 4)

Nov 22 2023 10:29 AM UTC

}// 122/140

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Polyducks

function u(t) {

c.width=1920;x.beginPath();x.rect(90,490,1800,70);x.stroke();x.fillRect(100,500,1700+(C(S(t*10)*T(t)*12.3))*50,50);

Jul 2 2024 12:57 PM UTC

}// 115/140

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wclang

function u(t) {

c.onmousemove=e=>X=e.clientX/2000
c.width=1920;
x.beginPath();
for(i=0;i<1000;i++){a=i*X+9*t;x.lineTo(800+i*C(a),500+i*S(a))}
x.stroke();

Dec 28 2017 9:55 PM UTC

}// 137/140

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Mouse over to change how tightly the Archimedean spiral is wound,.

u/wclang

(Another application of the mouse code I saw from FireFly, #1629.)

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MrM@_S

remix of d/2676 by u/MrM@_S

function u(t) {

x.fillText(0,t*t&t,t)

May 4 2017 12:30 PM UTC

}// 21/140

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shave

u/MrM@_S

it renders the sierpinski more efficiently without the shadow
u/donbright

awesome
u/iverjo

Wow, that's a very close shave indeed

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magna

remix of d/7512 by u/magna

function u(t) {

c.width=960
for(j=60;j--;)for(i=240;i--;x.fillRect(i*4,j*9,4,9))f=i+t*60,n=T(0|(j+f^f-j)/(t/2+6)),x.fillStyle=`hsl(${120*i},99%,${n*9%50}%`

Nov 4 2018 5:42 AM UTC

}// 139/140

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u/tomxor

Hah, it fits! awesome
u/tomxor

#crt #fractal
u/magna

It's monochrome, unfortunately. I couldn't find a quick way to add color (i.e. adjust the intensity based on R/G/B cells.)
u/tomxor

I can sort of fudge the colour with some kind of mod3 to selectively modulate the intensity in lum: (2+i%3)*n*10%50 duno how to fit it though.
u/magna

Nice! I used the dweet compressor (d/9207) to compress it: d/10843

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ClayCowgill

function u(t) {

for(j=2e3;j--;x.fillRect(t*60,j,1,1,x.fillStyle=`hsl(${C(k)*78},99%,50%)`))for(a=t/8-2,b=j/540-1,k=9;k--&&a*a+b*b<4;a=c)c=a*a-b*b-.7,b=2*a*b

Mar 3 2017 5:28 AM UTC

}// 140/140

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Really wants ~4 more chars... for(j=2e3;j--;x.fillRect(t*60,j,1,1,x.fillStyle=hsl(${C(k/12)*99},99%,50%)))for(a=t/8-2,b=j/540-1,k=49;k--&&a*a+b*b<4;a=c)c=a*a-b*b-.7,b=2*a*b