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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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olligobber

function u(t) {

c.width=96;for(r=t,m=2,i=8;i--;)with(m=-m,a=27-5*m,x)x.l=lineTo,l(n=48,a+17*m),l(n+15*S(r),54-a),l(n+15*S(r+=.79),a),l(n+15*C(r),a),stroke()

Feb 11 2018 12:40 PM UTC

}// 140/140

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I imagined a high resolution filled purple solid with shading, then golfed it to this...

u/olligobber

Awesome remix: http://dwitter.net/d/6858

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fr1sk

function u(t) {

let x=1,u=!1;setInterval(()=>{(75===x||1===x)&&(u=!u),u?x++:x--,console.log(`%c${`■`.repeat(x)}`,`color: hsl(${2*x}, 100%, 50%)`)},10);

Feb 11 2018 8:52 AM UTC

}// 135/140

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⚠️‼️OPEN CONSOLE TO SEE THE RESULT‼️⚠️

u/AnnanFay

Warning: May crash console / browser.

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AnnanFay

remix of d/6850 by u/yeet

function u(t) {

r=Math.random
for(i=999;i--;)
P=G=>G[i]=(G[i]||0)+9*(r()-.5),
P(T),P(C),
x.fillStyle=r()>.5?'#fff':'#000',
x.fillRect(960+T[i],520+C[i],5,5)

Feb 11 2018 5:30 AM UTC

}// 140/140

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yeet

function u(t) {

r=Math.random
for(i=0;i<999;i++){x.fillStyle=r()>0.5?'#fff':'#000'
x.fillRect(1920*r(),1080*r(),5,5)}

Feb 11 2018 3:57 AM UTC

}// 101/140

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u/trupples

yeet

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yeet

function u(t) {

ü=255
ö=2*t*Math.PI
x.fillStyle=`hsl(${ü*S(t)},99%,50%)`
x.fillRect(ü*(S(ö)+3.5),ü*(C(ö)+9/4),S(t/4)*ü,C(t/4)*ü)

Feb 11 2018 2:09 AM UTC

}// 112/140

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jbl

remix of d/5446 by u/jbl

function u(t) {

c.width|=i=300
while(--i)q=C(t/2+i/300)/49*i,x.arc(S(q+t/3)*(i*2-900)+1e3,S(q+t)*(i-99)+C(q)+500,S(i/96)*(C(t/3+i/30)+2)*40,0,7)
x.stroke()

Feb 11 2018 1:56 AM UTC

}// 140/140

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🐛

u/fons

I can stay and watch it forever

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bschwb

remix of d/6844 by u/bschwb

function u(t) {

with(x)for(i=0;i<15;i++)lineWidth=3000,m=t+i*.8,beginPath(),strokeStyle=`hsl(${60*t},50%,${9*i}%)`,arc(960+C(m)*99,540,1,m,m+.2),stroke()

Feb 10 2018 11:12 PM UTC

}// 138/140

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u/magna

So stylish!

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bschwb

function u(t) {

with(x)for(i=0;i<13;i++)lineWidth=3000,m=10*t+i*.1,beginPath(),strokeStyle=`hsl(${60*t},50%,${9*i}%)`,arc(960+C(m)*99,540,1,m,m+.1),stroke()

Feb 10 2018 11:11 PM UTC

}// 140/140

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akm

function u(t) {

f=n=>String.fromCharCode(n&127),eval("㟦ᑲᝣ㓷㩤㹨㒽Ჽ㒻ᚭᒻ᝸㓦㙬㋒㩣ᨨᠰ㒫ᢪᠰ⦫㨨ᔩᠳᘰᠴᘰᠵ᤬ᠰ".split``.map(c=>c.charCodeAt(0)).map(n=>f(n)+f(n>>7)).join``+`)`)

Feb 10 2018 10:21 PM UTC

}// 135/140

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Alternatively, in 106 chars: eval("㟦ᑲᝣ㓷㩤㹨㒽Ჽ㒻ᚭᒻ᝸㓦㙬㋒㩣ᨨᠰ㒫ᢪᠰ⦫㨨ᔩᠳᘰᠴᘰᠵ᤬ᠰᶩ".replace(/./g,c=>String.fromCharCode((c=c.charCodeAt())&127,c>>7)))

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bschwb

function u(t) {

c.width|=0
x.lineWidth=850
for(i=1;i<9;i++)m=0.5*i*t,x.beginPath(),x.strokeStyle=`hsl(${i*20},50%,50%)`,x.arc(960,540,90,m,m+0.2),x.stroke()

Feb 10 2018 10:18 PM UTC

}// 140/140

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