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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flweb

remix of d/5777 by u/sigveseb

function u(t) {

t&&a<1920||(a=b=q=0,p=t*77%23+4,h+=20)
x.font='9em"'
x.fillText('💩',a+=p,b)
b+=q++
b>930&q>0?q*=t%1/9-.9:0};{h=0

Sep 7 2023 7:56 PM UTC

}// 112/140

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shitshow

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KilledByAPixel

remix of d/29273 by u/KilledByAPixel

function u(t) {

c.width|=f=w=>(m=i%9.3*99*(i+t)%w)>w/2?w-m:m
for(i=9;--i;)for(A=f(3822)-X,B=f(2142)-Y,j=300;j--;)x.fillRect(X+=A/300,Y+=B/300,9,9)}{X=Y=0

Jan 7 2024 10:13 PM UTC

}// 137/140

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Mini Screensaver 🖥️

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josh_cheek

function u(t) {

c.width=1920
for(i=0,r=538;i<99;++i){
  a=6.28*i/99
  x.moveTo(960+r*C(a), 540+r*S(a))
  x.lineTo(960+r*C(t*a), 540+r*S(t*a))
  x.stroke()
}

Apr 24 2019 1:42 PM UTC

}// 140/140

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Modular Arithmetic!

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dee

function u(t) {

c.width=1920;for(i=0;i<700;i++){x.fillStyle=R(80+i*S(6*t),i*C(t*3),200+S(t*80));x.rotate(C(t/10));x.fillRect(0+i*1+C(t*3),800+i*2,10,200)}

Jan 9 2018 4:48 AM UTC

}// 138/140

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danny@hille.dk

remix of d/23879 by u/danny@hille.dk

function u(t) {

z=c.width=w=180;for(m=2e4;m--;)x.fillRect(X=m%w|0,Y=m/w|0,z=S(X/9*(k=1.1+S(t)/3)|Y/9*k-t*29),1/z*C(((a=(X-90)/66)*a)+((b=(Y-60)/66)*b)-t*6))

Sep 23 2021 11:41 PM UTC

}// 140/140

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Alien invasion remix

u/taupelink

whoaoooOOoooahhhhh
u/magna

Amazing!
u/neimad

so cool
u/aleamb

wow!
u/donbright

!!

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taupelink

function u(t) {

t||(c.width=162,r=X=4567,s=Y=89,h=l=n=1,i=k=0)
r&&x.fillText(h+`x${X}+(${k})x${Y}=`+r,0,n++*9),q=r/s|0,[h,k,r,i,l,s]=[i,l,s,h-q*i,k-q*l,r%s]

Jul 1 2019 4:45 AM UTC

}// 140/140

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Extended Euclidean algorithm, to find h, k such that hX+kY=gcd(X,Y) #math #numbertheory

u/durian-favored-monster

i remember this in high school it was very cool! good job! this is the best text one i've seen
u/geb

EEA is so cool!

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DonKarlssonSan

function u(t) {

c.width=1920
for(X=0;X<25;X++)for(Y=0;Y<14;Y++){x.save()
x.translate(X*82,Y*82)
x.rotate(t+Y/6+X/9)
x.fillRect(-30,-30,60,60)
x.restore()}

Jan 7 2018 6:43 PM UTC

}// 138/140

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ETHproductions

function u(t) {

(f=_=>eval("c.width|=0;x.font='64px monospace';for(s=`(f=${f})()`.slice(y=0,t*9%177);s;s=s.slice(50))x.fillText(s.slice(0,50),0,y+=64)"))()

Aug 10 2018 8:08 PM UTC

}// 139/140

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#quine that "types" itself on the screen

u/ETHproductions

The eval("...") is necessary because... well... just try with (f=_=>{...})() instead.
u/ETHproductions

I guess u/magna did a much better version already, go check his out: d/2516
u/BalintCsala

We should probably instrument anything passed to eval too...

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anotherkitten

function u(t) {

x.fillStyle=`hsl(${t**2} 50% ${(t%(8/t)<4/t)*50}%`
x.fill(p=new Path2D,p.arc(960,540,50,0,7))
x.drawImage(c,-72,-40,2064,1160)

Nov 24 2018 5:48 PM UTC

}// 126/140

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if you stare too long it does the shrinky vision thing

u/tomxor

Holly crap, I thought my screen was melting after I directed my eyes back to the comments. Needs a good 30 secs to get fast enough.
u/Xen

love it!

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snydej

remix of d/6792 by u/snydej

function u(t) {

with(x)for(fillStyle="#FFF2",i=n=2e3,fillRect(0,0,n,n),beginPath();i--||stroke();lineTo(960+r*C(s),540+r*S(s)))s=99*t+i/99,r=99*C(s*s/n)+200

Feb 9 2018 1:31 AM UTC

}// 140/140

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