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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tomxor

remix of d/17692 by u/iznax

function u(t) {

c.width=28
c.style.imageRendering='pixelated'
x.fillText([..."🥚🐣🐥🐤🐓🍗👨💩🌱🌾🐓🥚"][i=t%12|0],9+!i*S(t*29),12-S((i&2)*t%2*1.6)*2+S(i!=6||t*32))

Feb 22 2020 3:17 PM UTC

}// 136/140

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Retro Circle-Of-Life

u/tomxor

For FireFox replace pixelated with crisp-edges

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kodierer

remix of d/7970 by u/kodierer

function u(t) {

c.width=1920
h=0;
i=50;
while (h<=301){
if (h==300)i=-50;
x.fillRect (600, 500, 300, h+=i)

May 4 2018 4:49 AM UTC

}// 91/140

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u/BalintCsala

You shouldn't post broken dweets, especially when they are infinite loops

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taupelink

remix of d/35391 by u/taupelink

function u(t) {

for(i=z=1080;i--;x.fillRect(320*t,i,z+3,3))x.fillStyle=R(r=6**(z=z%3.8+2|0)/6,r,r),z+=3+S(i/20/2**z),z/=.7-S(z-t/3)/9,z*=3-S(z+t/4)*S(i/r/r)

May 21 2026 7:29 PM UTC

}// 140/140

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d/35416 Abstract cityscape

u/katkip

crazy
u/DataMeta

whoa

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AXL

function u(t) {

c.width=1920 // clear the canvas
for(i=2e3;i--;)x.fillStyle=R(i,i*t,9*i),x.fillRect(960+S(i+t)*i/3,540+C(i)*i/4,2,2)

Jul 10 2026 11:31 AM UTC

}// 116/140

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im889

function u(t) {

x.beginPath();x.setTransform(h=960,0,0,h,h,h);for(q=99;h>0;h-=30){x.lineTo(S(h%21+t),S(h%33+t));x.fillStyle=R(c=S(t)*q+q,0,c*2,.1)}x.fill();

Dec 28 2017 6:12 AM UTC

}// 140/140

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u/Xen

smooth

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ciaccodavide

function u(t) {

c.width|=1
h=66
g=h+C(t)*70
for(l=0;l<16;l++){x.fillRect(0,l*h,2e3,g/2);
for(X=0;X<2e3;X+=h+l*g)x.fillRect(X,l*h,33,h)}

Jan 23 2021 1:47 PM UTC

}// 119/140

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katkip

remix of d/9963 by u/BalintCsala

function u(t) {

x.fillRect(960-t*50,t*100,t*100,4);if(t%2<1)x.clearRect(960-t*5,t*100,t*10,4)

Oct 8 2019 5:16 PM UTC

}// 77/140

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Same road but straight. - 63 characters golf

u/katkip

or even 76 bytes: x.fillRect(960-t*50,t*100,t*100,4),t%2<1?x.clearRect(960-t*5,t*100,t*10,4):0
u/yonatan

x.fillRect(960-t*50,q=t*99|0,q,4);x.clearRect(960-t*5,q,t*9,q**.5&1&&4) - there might be a better way without using clearRect

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LimeLaser

function u(t) {

c.width|=0
r=Math.random
p=t?p.map(([i,j,u,v]=[2e3*r(),2e3*r(),2*r(),4*r()])=>[(i+u)%2e3,(j+v)%2e3,u,v,x.fillRect(i,j,8,8)]):[...Array(4e3)]

Mar 14 2019 5:42 AM UTC

}// 140/140

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Infinite Snowfall (Which Goes Right Because Modulo)

u/Jezza

Squeezed in some snow that floats left. ❄️❄️❄️ https://www.dwitter.net/d/12751

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DazeWare

remix of d/33534 by u/DazeWare

function u(t) {

r=s=>s*Math.random()
for(i=99;i--;){x.fillStyle=R(s=0,i,150)
x.fillRect(r(1910),r(1070),t,t)}
x.drawImage(c,-16+S(t),-9+C(t),1952,1098)

Mar 25 2025 5:35 PM UTC

}// 135/140

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#ocean

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dhvik

remix of d/776 by u/gaganjakhotiya

function u(t) {

c.width=900;半=450;for(i=0.0;i<360;i+=1){x.lineTo(半+C(i*(t+0.5)/10)*i,半*9/16+S(i*t/9)*i)};x.stroke();

Feb 22 2017 8:58 AM UTC

}// 100/140

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