Dweets awesomed by u/rgarner

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #ScaryMovies

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cantelope

function u(t) {

for(i=(w=(c.width|=0)/2)*2.5+1;i--;x.lineTo(w+(S(q=i/382)*Z)/(Z=C(q)*Z-1.9)*w,540+S(p)*v/Z*w))Z=C(p=i/153+C(t/2)*6)*(v=i%2-.5)+.8;x.stroke()

Oct 4 2017 7:21 AM UTC

}// 140/140

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best fullscreen... color version: https://codegolf.tk/a/192

u/joeytwiddle

Very striking! Have you considered designing furniture for the overly comfortable?
u/cantelope

now i have :)
u/donbright

hot damn

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Xen

remix of d/3228 by u/cantelope

function u(t) {

t?v=S(t*4):c.width=1e3
for(i=1e4;i--;x.fillRect(500+S(p=q*(t*v)+v)*q,290+C(p)*q,9,9))x.fillStyle=`hsla(${(t*2*(q=i/9))*C(t)},99%,40%,.2)`

Oct 3 2017 12:20 AM UTC

}// 137/140

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last one was broken for chrome users sorry... firefox auto-fix's a set alpha on hsl().

u/magna

Nice!
u/Xen

thanks :)

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rgarner

remix of d/3224 by u/rgarner

function u(t) {

a=2e3;c.width=a;x.fillRect(0,0,a,a)
for(i=0;i<a;i++){x.rotate(i/t/i);x.fillStyle=`hsl(${i*t/9},99%,50%)`
x.fillRect(i*C(t),i*S(t)*7,99,33)}

Oct 1 2017 6:19 PM UTC

}// 139/140

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Settles down after an initial chaotic period. Best experienced in full screen with loud music. In IE3.

u/Xen

Nice! try: x.rotate(t/i%13)

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Xen

remix of d/3224 by u/rgarner

function u(t) {

for(c.width|=i=200;i--;x.fillRect(900+i*C(Z),200-i*S(Z),i,i))x.rotate(.006),x.fillStyle=`hsla(${Z=t*i/2},99%,50%,.6)`

Sep 30 2017 11:08 PM UTC

}// 117/140

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u/rgarner

This is indeed a nice remix :)

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rgarner

function u(t) {

c.width=1920
for(i=0;i<200;i++){
  x.rotate(0.01)
  x.fillStyle=`hsl(${i*3},99%,50%)`
  x.fillRect(i*S(t)*10+1500,i*C(t)*10+200, 99, 33) 
}

Sep 30 2017 8:57 PM UTC

}// 140/140

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u/Xen

nice dweet, done you a remix #3225

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Xen

function u(t) {

for(Z=i=499;i--;x.fillStyle=R(i*t%255,0,i*2*t%255,.05))x.fillRect(-99+4*i,(Z+(C(i+t)*(X=99)))-(C(Z*i)*X),i*t%X,T(i*t)*4)

Sep 29 2017 12:07 AM UTC

}// 120/140

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u/sigveseb

Very nice
u/donbright

that is fantastic

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Xen

function u(t) {

t?X.push([Date.now()/t%2e3,0]):X=[];for(i=X.length;i--;x.fill())x.beginPath(x.fillStyle=R(X[i][1]/6)),x.arc(X[i][0]-=T(i),X[i][1]+=5,99,0,7)

Sep 25 2017 8:42 PM UTC

}// 140/140

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Somewhere between blood cells and a lava lamp :-) Shoutz to Alien.

u/alien

bloooooooooood
u/Xen

#blood

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Xen

remix of d/3173 by u/New_Core

function u(t) {

for(a=i=1910;i--;x.fillStyle=`hsla(${a=Z/T(i*C(i)+t)/9},99%,${a}%,.4)`)x.fillRect(i+a*C(t*a),365+a*7,Z=99,Z*C(i))

Sep 16 2017 4:43 PM UTC

}// 113/140

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"i am the god of hellfire and i bring you..."

u/cantelope

2hot4me
u/iverjo

#fire

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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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New_Core

function u(t) {

c.width=2e3;for(a=i=629;i--;)s=-150/((i+t*60)%a),X=a*S(i*.31)*s+1e3,Y=a*C(i*.3)*s+500,x.fillRect(X,Y,s*9,s*9),x.lineTo(X,Y);x.stroke();

Jan 17 2017 4:08 PM UTC

}// 135/140

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Show more comments…
u/Ameo

That's ridiculously impressive.
u/Ameo

That's ridiculously impressive.
u/Ameo

That's ridiculously impressive.
u/ilSilvano

That's three times ridiculously impressive.
u/joeytwiddle

I feel like god is pulling all the thread out of the universe
u/hope4tg

Haha, agree with joey, the zoom out effect is awesome
u/Lazy1337

#d3
u/katkip

#infinite
u/vain

really impressive

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