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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WasifBoomz

function u(t) {

c.width=1920
x.fillStyle=R(255,0,0)
x.fillRect(0,500,5000,S(t)*500)
x.strokeRect(0,500,S(t)*5000,500)

Feb 16 2019 3:33 AM UTC

}// 101/140

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Odog8

function u(t) {

c.width^=1
x.font="50px monospace"
x.fillText('('+(t%2>1?'<':'-')+(t%2>1?'• ':' •').repeat(40),0,540)

Feb 8 2020 2:45 AM UTC

}// 101/140

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pacman

u/katkip

#pacman #text

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donbright

remix of d/1871 by u/walsh9

function u(t) {

圈=(n,d,N,D)=>{d+D<15?(圈(n,d,n+N,d+D),圈(n+N,d+D,N,D),w=2e3,m=d+D,x.beginPath(),r=w/m/m/2,x.arc(w*(n+N)/m,r,r,0,7),x.fill()):1}
圈(0,1,1,1)

Mar 7 2017 11:35 PM UTC

}// 136/140

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basic Ford's Circles (sort of like Apollonian Circle Packing but every circle touches the floor, or here, the ceiling)

u/donbright

#math
u/donbright

see also https://www.dwitter.net/d/15086 by @taupelink
u/donbright

#numbertheory
u/taupelink

nice!

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46uuuu

function u(t) {

c.width=1920
r=t=>Math.random()*t
x.fillStyle=R(r(255),r(255),r(255),r(1))
x.fillRect(r(1920),r(1080),r(1920),r(1080))

May 23 2026 3:37 AM UTC

}// 118/140

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Chaosify.js

u/joeytwiddle

Classic

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Bendoman

function u(t) {

c.width=1920;for(i=0;i<20;i++){x.arc(900+C(t)*-30*i,200+(i*20),20,0,Math.PI*2);x.arc(900+S(t)*30*i,900-(i*20),20,0,Math.PI*2);x.stroke()}

Dec 27 2017 9:00 PM UTC

}// 137/140

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andrea270872

remix of d/28279 by u/rodrigo.siqueira

function u(t) {

with(x)for(fillRect(0,0,w=2e3,i=w);i--;strokeRect(960-i/2,540-i/2,i*2,i))setLineDash([i,99,i]),strokeStyle=R(lineDashOffset=w+i*t,w)

Aug 13 2023 8:28 AM UTC

}// 132/140

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just playing around with the params and the shadows

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alien

remix of d/3185 by u/alien

function u(t) {

with(x){c.width=500;v=(X,Y,R)=>[20*C(X+t)*R+250,20*S(Y+t)*R+150]
for(i=0;i<200;i++)lineTo(...v((4.112)*i,4.112*i,0.5*i*S(t/i)));stroke()
}

Sep 21 2017 2:38 PM UTC

}// 138/140

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Let it spiral and hang on it's gonna be a wild trip.

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rodrigo.siqueira

remix of d/34557 by u/rodrigo.siqueira

function u(t) {

t?c.style.filter=`invert(`:𝕏=X=Y=0
for(i=3e4;i--;𝕏=X,x.fillRect(X*3e3-580,Y*5e3-400,t<3,.1))X=T(X*X%.5-Y*Y+X**9
-Y**3)+.33,Y=C(2*𝕏*Y+1.2)

Nov 26 2025 11:50 PM UTC

}// 137/140

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Light and shadow on rounded shapes

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KilledByAPixel

function u(t) {

t?h.innerHTML=[...s.value].reduce((a,c)=>c.charCodeAt()+a*31|0,0):c.outerHTML='<input id=s style=border:solid value=Dwitter!> <span id=h>'

Jul 2 2020 3:12 AM UTC

}// 138/140

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String to Hash Code #example

u/katkip

X=88, Y=89 ... seems like a crackable one
u/katkip

#hash
u/KilledByAPixel

its not really trying to be uncrackable, just converting a string to a number

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WasifBoomz

remix of d/11713 by u/WasifBoomz

function u(t) {

x.fillStyle=R(Math.random() * 255,Math.random() * 255,Math.random() * 255)
x.fill(x.arc(Math.random() * 1920,Math.random() * 1080,50,0,360))

Jan 9 2019 4:19 PM UTC

}// 140/140

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