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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BirdsTweetCodersDweet

function u(t) {

c.width^=π=2*Math.PI
s=0
e=t*π
if(t%2>1)s=e,e=0
x.lineWidth=20
x.arc(960,540,100,s,e%π)
x.stroke()

Feb 5 2018 5:20 PM UTC

}// 98/140

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Android lollipop themed loading icon...

u/BirdsTweetCodersDweet

c.width^=0,π=2*Math.PI to stop the shaking
u/akm

Don't you mean c.width|=0,π=2*Math.PI to stop the shaking?
u/prplz

#loading
u/d0n.key

Am I trippin

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KilledByAPixel

function u(t) {

with(x)for(c.width|=i=99,font="45em'";i--;restore())save(),clip(p=new Path2D(),p.rect(20*i,0,20,1e3)),fillText("WAVE",0,750+99*S(i/9+t*3))

Jun 9 2019 5:05 PM UTC

}// 138/140

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Wave

u/IV

first Path2D code Ive seen that woeks on old Edge!

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katkip

function u(t) {

c.width*=1;x.lineWidth=9;for(i=111;i--;)x.beginPath(),r=i*C(i/99+t/3+S(i)/999),x.arc(960,540,10+i*9,r,3.14+r),x.stroke()

Jun 6 2019 2:40 PM UTC

}// 120/140

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Purpzie

function u(t) {

for(i=2e3;i--;)with(x)strokeStyle=`hsl(${i/9+t*99} 99%50%)`,beginPath(),moveTo(i,0),lineTo(i,2e3),stroke()

Oct 3 2018 4:43 PM UTC

}// 106/140

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pavel

function u(t) {

for(i=c.width|=0,s=120;Y=--i>>4;x.fillRect(0,-60,s,s))x.setTransform(1,0,C(o=(S(e=S(d=S(b=S(t-=44)+t)+b)+d)+e)/4+.78)/4,S(o),i%16*s,s*Y-60)

May 18 2019 5:22 AM UTC

}// 139/140

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zadgy5534

function u(t) {

for(i=w=c.width=2e3;i--;){
x.fillStyle=R(w%i,w/i,w-i*i);
x.fillRect(960+C(w%i^t)*T(t)*99,540+S(w/i*t)*T(t)*99,35,35);}

Sep 12 2024 10:22 AM UTC

}// 118/140

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Scaling !

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mxfh

function u(t) {

d=x.getImageData(0,0,w=c.width=256,h=144);for(i=0;i<h;i++)for(j=0;j<w;j++)d.data[(i*w+j)*4+3]=(i-j&j+i)*t%w;x.putImageData(d,0,0)

Feb 20 2017 3:43 AM UTC

}// 129/140

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Show more comments…
u/jim

This is my favorite demo on Dwitter so far
u/mxfh

first draft on documenting the more obvious parts: https://news.ycombinator.com/item?id=13712558
u/hamptonio

pretty sick
u/mxfh

drone audiosoundtrack paste this:
u/mxfh

;new Audio("data:audio/wav;base64,"+window.btoa('RIFF$WAVEfmt data'+x.getImageData(0,128,c.width,32).data.reduce((data,byte)=>data+String.fromCharCode(byte),''))).play()
u/mxfh

//safer encoding: ;new Audio("data:audio/wav;base64,UklGRiQAAgBXQVZFZm10IBAAAAABAAIAAIAAAAAAAgAEABAAZGF0YQAA"+window.btoa(x.getImageData(0,128,c.width,32).data.reduce((data,byte)=>data+String.fromCharCode(byte),''))).play()
u/Xaviaro

Breathtaking!
u/lionleaf

#fractal #recursive
u/Galaxtone

Of you let it run long enough it returns to the original image but sort of pixelated and a little more and it'll return to the original image

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f8f82804

remix of d/9191 by u/f8f82804

function u(t) {

x.globalAlpha=.1;for(i=a=30;z=--i*a*C(b=i+99*t/i/i);)x.fillRect(960+3e5*S(b)*i/(d=2e3-z),540+1e3*z/d,9,9)

Aug 16 2018 1:29 AM UTC

}// 105/140

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#perspective #galaxy

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katkip

function u(t) {

c.width*=1;x.fillStyle='navy';for(j=45;j--;){for(i=3;i--;)x.beginPath(),x.arc(i*960,1540,30*j,t*2+4+j,t*2+4.5+j),x.fill();}

Jul 9 2019 4:13 PM UTC

}// 123/140

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Mullets (jumping fish)

u/joeytwiddle

#fish
u/taupelink

This is one of my favorite dweets

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sfz

remix of d/1922 by u/sfz

function u(t) {

c.width|=w=950
V=t%13+3
for(i=V;i>0;i-=1/w)x.fillStyle=`hsl(${7*t*i},66%,66%)`,x.fillRect(w+w*S(t*i+2*V),w/2+w/2*S(V*i+2*t+3),V,V)

Mar 8 2017 10:52 AM UTC

}// 130/140

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Harmonograph II