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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Current theme challenge: #Food

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lonestar108

function u(t) {

f=(t)=>{for(i=0;i<299;i++){x.fillStyle='hsl('+(i+t)+',99%,50%)';x.fillRect(949+899*S(t*i)*C(t/i),499+499*C(t*i)/S(t/i),6,6)}};f(t)

Oct 5 2022 10:26 PM UTC

}// 130/140

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Eyeball

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danny@hille.dk

remix of d/24801 by u/rep_movsd

function u(t) {

for(t?i=3e4>>t:G=X=Y=1;i--;x.fillRect(860+X*17,540+Y*17,.3,.3))Z=X,X=G+Y*1.07-Y**3/7e3,G=9*X*X/(.3+X*X)-X*.2,Y=G-Z+t

Feb 6 2023 5:56 PM UTC

}// 116/140

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Charcoal and ink abstract art remix

u/Xen

nicely done!
u/jdspugh

Great!

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pavel

function u(t) {

for(d=t<8,n=i=256;i--;x.fillRect(d?9*i:855+n*i*(i<2),!d*300,50,d?4:50))x.fillStyle=R(C((t|Math.abs(i-107))**.5*t)<0&&n)
x.drawImage(c,0,d*4)

Nov 12 2018 3:19 AM UTC

}// 140/140

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Demon

Show more comments…
u/magna

Amazing!
u/iverjo

Spot on!
u/katkip

nice idea
u/ndr3w221

this is awesome!
u/and3k5

i did not expect the last bit! scary!
u/aleamb

great! #waitforit
u/lionleaf

Amazing #demon

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stellartux

function u(t) {

k='80';i=t?i+=19:0
x.fillStyle='#'+((t%4*4e6)|0).toString(16).padStart(6,0).substr(0,6)+k
x.fillRect(i,550*(S(t%42)+1),C(i)*k,S(i)*k)
i%=2e3

Jan 10 2019 6:10 PM UTC

}// 140/140

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A woolly scarf

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rodrigo.siqueira

remix of d/21760 by u/Pascal

function u(t) {

c.width|=c.style=`filter:invert(1`
for(k=i=620;i--;x.closePath())z=5+C(a=i*i),x.arc(960+280*(S(i+t)*S(a)),k+2e3*C(a)/z,30/z,0,7)
x.fill()

Feb 25 2021 7:36 PM UTC

}// 137/140

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Cosmic Egg #egg

u/danny@hille.dk

sweet
u/Qwitter

#DIXON RULES

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TGY

remix of d/24233 by u/TGY

function u(t) {

for(c.width=i=2e3;i--;x.fillRect(S(i/20^5)*99*m+500+S(t*3)*200,800+S(t*6)*59+m,m*3,-m*9))m=200/(99-(t+i/20)%99)

Oct 25 2021 2:10 PM UTC

}// 111/140

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#d3 city walk

u/ciaccodavide

wow

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katkip

remix of d/9698 by u/katkip

function u(t) {

if(!t){c.width^=0;for(i=-1;i++<63;)for(j=0;j++<36;)x.font="2cm n",x.fillText(btoa`wµê`[7*Math.random()<<-00000000000000000000],i*50,j*50)}

Sep 8 2018 1:11 PM UTC

}// 140/140

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If you find the d w i t t e r crossword puzzle you win 1 dollar. #game

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Agnes

function u(t) {

c.width|=A=t?A:[]
R=(a)=>a*(.5-Math.random())
x.stroke(new Path2D("M960 540"+A.map(e=>"l"+(e[0]*=.9)+" "+(e[1]*=.9))))
A.push([R(99),R(99)])

Feb 29 2024 8:14 PM UTC

}// 140/140

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Wire attempting to escape a black hole #path2d

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Yngvarr

function u(t) {

A=400;B=400;a=5;b=4;d=2;
x.fillRect(800+A*S(a*t+d),600+B*C(b*t), 10, 10)

Dec 11 2018 3:16 AM UTC

}// 72/140

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Lissajous curve.

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KilledByAPixel

remix of d/23015 by u/KilledByAPixel

function u(t) {

for(j=1e4;--j;x.fillRect(a.x+=C(a.a+=((a.x+d%1e3)&a.y+d)/99),a.y+=S(a.a),1,.1))a=T[i=j%9]=t?T[i]:(d=Date.now(),{x:i*200,y:d%1e3,a:j})

Jun 5 2021 8:31 PM UTC

}// 133/140

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Map of Sierpinski Land

u/joeytwiddle

This reminds me of the *nix xscreensaver "Vermiculate" 👍