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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go_rs

function u(t) {

x.fillStyle=R(170, 40, t*10%99)
x.fillRect(0,0,2e3,2e3);
x.globalAlpha='0.08';
for(i=90;i--;)x.clearRect(C(t)*t*i+960,0+C(i)*t*i,5,5);

Mar 19 2021 10:39 PM UTC

}// 134/140

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don't know what i'm doing

u/Xen

Welcome to the dwitter family!

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username

remix of d/12929 by u/username

function u(t) {

for(c.width|=j=999,t*=.3;j--;x.font=`6em'`)r=t+9*j,x.fillText('.',1e3+r*S(j/10*C(t)),557+r*S(j/10*S(t)))

Mar 29 2019 6:49 PM UTC

}// 104/140

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jylikangas

function u(t) {

c.width=-1
for(q=j=8;j++<21;T=65+~(t/6)%5*9)for(i=300;i-=2;x.clearRect(i,Y,1,1))x.fillRect(i,Y=j*5+(h=C(i/T)*35+(q+=S(i/j))),j/7,S(t)+T/2-h)

Apr 29 2018 10:22 AM UTC

}// 140/140

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Remote Islands

u/iverjo

Cool! After a while it shows multiple groups of islands
u/iverjo

#water #islands #landscape
u/BuRRak

Making of coming soon i hope
u/donbright

#art

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DazeWare

remix of d/35630 by u/taupelink

function u(t) {

for(i=z=2e3;i--;x.fillRect(400*t,i,9,-w))x.fillStyle=`hsl(${t*i**(w=z&3)},${99-(z&=99)*++z/5}%,${z*=C(w+=8-C(i/99-z/3))*C(t*4/w+z/4)+w}%,.5`

Jul 6 2026 9:24 PM UTC

}// 140/140

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BirdsTweetCodersDweet

remix of d/7446 by u/prplz

function u(t) {

c.width=w=800
t||(x.fillText(x[f='font']=1+x[f],0,90),d=x.getImageData(0,0,w,w))
for(i=w;i--;)x.putImageData(d,0,T(i/300+t)*9+200,i,0,1,w)

Mar 25 2018 2:53 PM UTC

}// 138/140

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Flowing text

u/prplz

#text

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rnbw

function u(t) {

for(c.width+=i=0;++i<3e3;x.fillStyle=`#5`+i/10)x.fillRect(940+i*S(t*2+i/99*S(t/3+i/400))/i*300,540+i*C(t*2+i/99*S(t/3-i/400))/i*300,7,7)

Jan 27 2020 3:44 PM UTC

}// 136/140

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implicit boundaries

u/rnbw

i just realized that i could have cut down on this a little, there are a few unnecessary operations (like i/i spread across functions a few times)

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plusright

function u(t) {

c.width=1980;r=200;n=20;x.fillStyle=R(0,0,0,0.8);for(j=n;j--;)for(i=n;i--;x.fillRect(r+r*S(i+t)*j/2,T(t/j)*r+r*C(i+t)*j/2,r-i*j,r-i*j));

Nov 16 2020 6:41 PM UTC

}// 137/140

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#corruption #asymmetry

u/plusright

adding color is difficult! I want to do more with it but can't beat the character count.
u/Xen

few more bytes for you... c.width|=r=200;for(j=20;j--;x.fillStyle=R(0,0,0,.8))for(i=20;i--;)x.fillRect(r+r*S(i+t)*j/2,T(t/j)*r+r*C(i+t)*j/2,z=r-i*j,z)
u/pavel

x.fillStyle=R(0,0,0,.8) -> x.globalAlpha=.8
u/plusright

nice, thank you both.

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ellisk1

function u(t) {

for(i=0;i<20;i++)for(j=0;j<10;j++)x.fillStyle=`hsla(${7*(i*C(t/2)+j*S(t/3)+5*t)},80%,50%,.05)`,x.fillRect(i*100,j*100,100,100)

Sep 9 2018 6:50 PM UTC

}// 126/140

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Slowly shifting gradient v3

u/donbright

pleasant

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anthonylewis

function u(t) {

for(i=1000;i--;)X=Math.random()*1920-50,Y=Math.random()*1080-50,
x.fillStyle=R(X%255,Y%255,i%255,0.1),x.fillRect(X,Y,100,100)

Apr 29 2018 3:10 AM UTC

}// 125/140

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CalSch

function u(t) {

if(!t)f=Math.floor,i=0;x.fillStyle="black";i++;!(f(i/100)&i%100)&&x.fillRect(i%100*20,f(i/100)*20,20,20);

Aug 4 2022 2:48 AM UTC

}// 105/140

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Sierpinski triangle.