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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just_me_7k

function u(t) {

for(i=0;i<100;i++)for(j=0;j<10;j++)x.fillStyle=`hsl(${i*3+j*36},80%,40%)`,x.fillRect(i*19,50+j*100+50*Math.sin(t+i),10,90)

Jun 30 2025 1:11 PM UTC

}// 122/140

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PulseGrid

u/airstrike

this soothes the brain

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Aeholbrook

remix of d/29441 by u/baon

function u(t) {

for(c.width+=i=0;i<3e4;i++) q=T((t/9+i)), p=C(t+i),
[X,Y,Z]=[1,2,3].map(a=>C(i**a-i)*i/53),
x.fillRect(X*q-Y*p+960,(X*p+Y*q)/5+Z+540,5,5)

Feb 7 2024 4:07 PM UTC

}// 137/140

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z3vin

function u(t) {

r=(n)=>Math.random()*n;h=1080;w=1920;
for(i=0;i<1999;i++)x.fillRect(r(w),h/2*C(t)+h/2,3,6)
for(i=0;i<99;i++)x.clearRect(r(w),r(h),r(3),r(h))

Mar 25 2017 12:16 AM UTC

}// 140/140

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Pascal

function u(t) {

if(t<52){t=(60-t)**0.6*5;x.fillStyle=`hsl(${(40*t)%360},70%,70%)`;x.beginPath(x.fillRect(810+20*t*S(t),960+10*t*(T(t)%200)-10*t,300,100))}

Dec 10 2020 6:58 PM UTC

}// 138/140

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Colorful X

u/Xen

nice

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danny@hille.dk

remix of d/19969 by u/danny@hille.dk

function u(t) {

for(c.width=X=64;X--;)for(Y=64;Y--;)x.fillStyle=R(m=128*(S(X*Y+Y/2*Y/16)/64**C(Y/8+t*2)/16),-m/9),x.fillRect(Y,X,1,1)

Sep 15 2020 7:27 PM UTC

}// 117/140

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Demonic patterns (or christmas sweater pattern) remix

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myro

remix of d/18548 by u/myro

function u(t) {

w=c.width=1e3
for(i=0;i<w;i++){
r=240**S(i+t/2)
a=8*T(i+t/8e9)
u=2*r*C(a)
v=r*S(a)
x.fillStyle=R(a,r,w*C(t))
x.fillRect(u+w/2,v+w/4,20,20)}

Apr 29 2020 11:55 PM UTC

}// 139/140

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blossom

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katkip

remix of d/9262 by u/DataMeta

function u(t) {

with(x)for(c.width|=i=45;i--;stroke())lineWidth=7,
rotate(Math.PI*2),arc(960,540,Math.abs(540*C(t*i/15)*S(i*t/90)),i/2,i/2)

Aug 17 2018 7:25 PM UTC

}// 123/140

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u/aleamb

oh! great!

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Xen

remix of d/8544 by u/firegodjr

function u(t) {

t?x.drawImage(c,0,3):x.fillRect(0,0,2e3,2e3)
for(Z=i=350;i--;x.fillRect(i*9-C(t+t-S(i/19-t))*Z-Z,0,Z,2-C(t)))x.fillStyle=R(f=S(i+t)*Z,i,f+i)

Jun 11 2018 7:01 PM UTC

}// 140/140

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u/iverjo

Kudos! Interestingly, this looks very different in fullscreen, without the moiré patterns

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Xen

remix of d/18973 by u/Xen

function u(t) {

for(i=2e3;i--;x.fillRect(i,0,9,i/9))x.fillStyle=`hsl(${(i*i&t**t)%i},42%,${h=C(i)*(t*t%99)}%`;x.drawImage(c,T(h),9)

May 27 2020 12:10 PM UTC

}// 115/140

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_-{Skan}-_ v0.4

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django

function u(t) {

g=(l,v,f,b)=>l<1?0:f(v+g(l-1,v,l&1?b:f,l&1?f:b))
k=(t/3.1)|1;for(i=0;i++<20;)x.fillRect(960+g(7,n=t-i/100,C,S)*30*k,540+g(2,n,S,C)*40*k,9,9)

Mar 2 2020 3:12 AM UTC

}// 140/140

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Topography sketch. its not quick, but i think its cool #140