Dweets awesomed by u/bschwb

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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BuRRak

function u(t) {

t||(p=3);f=frame*2;p+=(f%4?4:-4)/((f)*(f+1)*(f+2));throw p

Feb 22 2018 8:08 PM UTC

}// 58/140

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Calculating Pi using Nilakantha's series :)

u/BuRRak

meh, got an extra pair of brackets in there, nvm

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snydej

function u(t) {

for(i=h=540;i--;f(h-h*S(i*R+t),9,70,1))f=(y,s,l,a)=>x.fillRect(i*4,y,s,s,x.fillStyle=`hsla(${i+t*l},80%,${l}%,${a}`)
f(0,3e3,0,R=S(t)/h+5/h)

Feb 22 2018 11:07 AM UTC

}// 140/140

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u/sigveseb

Solid stuff! u/snydej keeps rocking dwitter :)
u/M1T0

wow super nice!

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DragonKyn

function u(t) {

c.width|=0
for(i=5e3;v=i--/800;){
s=4*S(t)*S(9*v)
q=s*2
s*=1-q/3*(1-q/25)
k=100*(4-q*(1-q/14))
x.fillRect(900+k*C(s+=v+t),520+k*S(s),11,9)
}

Feb 21 2018 8:06 PM UTC

}// 140/140

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u/Bugsy

Nice! Any particular reason you didn't initialize i to 6e3? That'd take care of that gap you have in one of the tendrils
u/joeytwiddle

#spiral

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Blane

function u(t) {

c.width^=0;for(i=999;i--;){v=300*(.5+.4*S(T(t)+6*t+3.14/99.9*i)-.1*C(6*i));x.fillRect(980+v*S(6.28e-3*i),540+v*C(6.28e-3*i),9,9)}

Feb 21 2018 7:13 PM UTC

}// 129/140

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Xen

remix of d/7024 by u/DirtyDan

function u(t) {

with(x)for(i=199;i--;lineWidth=i/9,beginPath(arc(960+C(a=i-t/9)*(d=i*9*S(t/5)),540+S(a)*d,i,0,7),stroke()))strokeStyle=`hsl(${i*t},99%,39%)`

Feb 21 2018 12:50 AM UTC

}// 140/140

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Shoutz 2 DirtyDan

u/DirtyDan

:D
u/katkip

#xweet

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DirtyDan

remix of d/7021 by u/DirtyDan

function u(t) {

with(x)for(i=82;i-->1;lineWidth=9,strokeStyle="#FFF")beginPath(arc(960+C(a=t*i/9)*(d=i*9*S(t)),540+S(a)*d,i*3,0,7),fill(stroke()))

Feb 21 2018 12:01 AM UTC

}// 130/140

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u/akm

nice!

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triclops200

function u(t) {

w=1920;c.width=w;m=150
for(i=0;i<m;i++){k=C(t*2+i/50)*255
x.fillStyle=R(255-k/2,0,k)
x.fillRect(i/m*w,w/3.6+100*S(i/10+t/2),10,150*C(i+t))}

Feb 20 2018 11:11 PM UTC

}// 139/140

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u/BirdsTweetCodersDweet

Golfed-ish... Maybe learn some new techniques fromit IDEK, https://www.dwitter.net/d/7041
u/BirdsTweetCodersDweet

See the link in the comments of that one as well. Shortened it some more.
u/triclops200

The first one had golf that kept the output the same, but the second has output changes (the /3.6, for example, was there to approximate center of screen y), otherwise, good golf
u/snydej

Note that "540" is shorter than "w/3.6" ;)

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jellyedwards

function u(t) {

c.width=w=600;for(s=j=80;j<330;j+=4){x.beginPath();for(h=i=200;i;i-=5){d=(i-w/6)/38;x.lineTo(h+i,j-(s/=.9)%w/t*Math.exp(-d*d))}x.stroke()}

Feb 20 2018 8:48 PM UTC

}// 138/140

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unknown pleasures

u/joeytwiddle

Nice! Dwitter album covert art d/2108
u/jellyedwards

@joeytwiddle yours looks much more like it! I had a few other versions with fBm and fill etc. but couldn't get them under 140 chars!

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DirtyDan

remix of d/7009 by u/DirtyDan

function u(t) {

with(x){lineWidth=b=44
fillStyle="#FFF"
for(i=0;i<b;i++)beginPath(),arc(960+S(a=t*i/b*4)*(d=i*t*S(t)),540+C(a)*d,i*3,0,b/7),stroke(),fill()}

Feb 20 2018 3:01 AM UTC

}// 140/140

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If someone can shave 2 characters off, we can invert the colors! Like in d/7011

u/akm

here, I shaved off 10 chars: with(x)for(fillStyle="#FFF",i=0;i++<44;lineWidth=44)beginPath(arc(960+S(a=t*i/11)*(d=i*t*S(t)),540+C(a)*d,i*3,0,7),fill(stroke()))

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fons

remix of d/6998 by u/snydej

function u(t) {

for(q=t,i=3;i--;x.fillRect(0,0,f=85,f,x.fillStyle=`hsl(${500*t},99%,${f}%`))x.setTransform(s=S(q),C(q),S(q-=2.1),C(q),t%8*250,990*S(t/2)**2)

Feb 19 2018 10:55 PM UTC

}// 140/140

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tripping

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