Top dweets by u/geb

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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geb

function u(t) {

t||(X=Y=0);x.globalAlpha=.2;for(i=2e3;i--;){
X=666*C(Y-t)*C(Y)+950
Y=420*S(X+t)*S(X)+550
x.fillRect(X,Y,1,1)}

Feb 22 2019 12:12 AM UTC

}// 109/140

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geb

remix of d/20324 by u/ciaccodavide

function u(t) {

g=c.width=1920
n=13
for(i=0;i<g;i+=n){
z=S(t)*2/C(t/9+i)
a=i
b=1080-a*2
x.fillStyle=i%2>0?'#fff':'#aaf'
x.fillRect(b-a+a+z,a+z,b,b)
}

Oct 23 2020 12:12 PM UTC

}// 133/140

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geb

remix of d/19248 by u/geb

function u(t) {

c=(o,n)=>o[o.length-n]
for(a=0,o=[1,1,1];a++-19;)o.push(c(o,1)+c(o,2)+c(o,3))
throw o+'\n https://oeis.org/A000213'

Jun 26 2020 5:26 PM UTC

}// 116/140

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Tribonacci

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geb

remix of d/19225 by u/Irratix

function u(t) {

r=52
c=(n,k)=>k?n*c(n-1,k-1)/k:1
n=[];for(i=-1;i++<r;n[i].push("\n"))
for(n[i]=[],j=-1;j++-i;n[i][j]=c(i,j)%2?"/":"_");throw(n)

Jun 25 2020 8:23 AM UTC

}// 127/140

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big triangle #Sierpinski

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geb

function u(t) {

for(i=0,c.width=2e3,π=44/7,r=540;i++<180;a=5+i*S(t),x.ellipse(960,r,a<0?-a:a,r,6*π*i+S(t),~'moire patterns <3',7),x.stroke())x.beginPath()

Jun 15 2020 9:45 AM UTC

}// 138/140

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#moire

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geb

remix of d/13596 by u/robbyg

function u(t) {

c.width|=0
p=-1.6
with(x)for(h=170,w=120;h--;)v=h/16,beginPath(),moveTo(H=h%16*w,V=v*w),fill(arc(H,V,99,a=t+h%2*p+v%2*p*2,p*3+a))

May 5 2019 4:17 PM UTC

}// 129/140

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Unsynchronized pizza slices

u/robbyg

lol

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geb

remix of d/12933 by u/vinca

function u(t) {

for(i=3e3,t*=99;i--;)x.fillRect(t|i,t,1,1)

Mar 30 2019 3:14 PM UTC

}// 42/140

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u/DataMeta

This must be nearly the shortest dweet
u/Xen

nice find geb, check 2923 datameta, altho xem and others have done smaller ;)
u/katkip

Wow!
u/geb

better tag them from now on #Sierpinski
u/pavel

Basically the same thing but in 40: for(i=3e3,t*=99;i--;)x.fillText(1,t|i,t)
u/Xen

37 but not as good: for(t*=i=1e3;i--;)x.fillText(i,t|i,t)

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geb

remix of d/11285 by u/pavel

function u(t) {

with(x)for(c.width|=j=9;j--;fillStyle=j%2?'red':'green',fill('evenodd'))for(beginPath(i=6);i--;arc(960,540,2.6**p,a=(6*i+p)*-t/42,a))p=j+t%2

Dec 4 2018 7:32 PM UTC

}// 140/140

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geb

remix of d/10298 by u/geb

function u(t) {

for(i=c.width=420;i--;x.fillText('lol',99*(i?2+C(i+t%i):1),59*(i?2+C(t-i%t/9^i):3)));(font='0cm a')

Oct 9 2018 9:42 PM UTC

}// 99/140

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u/f8f82804

cool effect 👍

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geb

remix of d/20570 by u/Odog8

function u(t) {

throw u

Nov 11 2020 4:12 PM UTC

}// 7/140

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#quine

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