Top dweets of all time

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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nick

function u(t) {

a=b=>x.fillRect(b[0],b[1],2,2)
for(i=0;i<88;i++)for(j=0;j<50;j++)a([200*T(i*t),200*T(j*t)])
x.fillStyle=R(224*T(t*i),224*T(t),222*C(t*i))

Mar 14 2017 5:45 AM UTC

}// 138/140

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mxfh

remix of d/2114 by u/mxfh

function u(t) {

x.setTransform(f=1080/22,0,0,f,f*13,f*11);x.rotate(~t%4*Math.PI/2);x.fillStyle='#004C97';x.fillRect(-3,-3,6,f)

Mar 14 2017 3:09 AM UTC

}// 110/140

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http://www.norden.org/en/fakta-om-norden-1/t…

u/sigveseb

nice flags!
u/iverjo

#flag

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mrg

remix of d/2107 by u/kpmcauliffe@gmail.com

function u(t) {

c.width=c.height=400,x.clearRect(0,0,c.width,c.height),x.fillStyle="red",x.fillRect(0,0,(1+S(t*3))*200,75);

Mar 14 2017 3:06 AM UTC

}// 107/140

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mxfh

remix of d/1443 by u/sigveseb

function u(t) {

for(x.setTransform(f=68,d=0,0,f,8*f,8*f);r=d<4,d<8;x.rotate(Math.PI/2*d++),x.fillRect(l=r?-1:2,l,r?2:f,f))x.fillStyle=r?'#003087':'#C8102E'

Mar 14 2017 2:16 AM UTC

}// 139/140

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made some space for proper ratios and colors.

u/iverjo

#flag

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jczimm

function u(t) {

c.onmouseup=(e)=>x.fillRect((e.clientX*(f=0.0282)|0)/16*1920,(e.clientY*f|0)/8*960,120,120)

Mar 13 2017 8:40 PM UTC

}// 91/140

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"Pixel art"

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nick

function u(t) {

c.width=800
a=b=>Math.round(C(b*t))
for(i=0;i<88;i++)for(j=0;j<50;j++)x.fillRect(9*i,9*j,9*a(a(i)),9*a(j/2))

Mar 13 2017 6:34 AM UTC

}// 108/140

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sfz

function u(t) {

for(i=99;i--;){a=(S(t)+1)*2e3/i
b=(C(t)+1)*1e3/i
x.beginPath()
x.arc(0,0,(a**2+b**2)**.5,0,Math.atan2(a,b),0)
x.strokeStyle=R(b)
x.stroke()}

Mar 12 2017 5:39 PM UTC

}// 140/140

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pangolin

function u(t) {

function f(y,z){x.arc(a,a,y,4.7,z+4.7);x.stroke();}a=90;c.width=400;d=Date.now()/10000%4320;f(20,d%6);f(60,d/6%60/9.5);f(a,d/a/9.5);

Mar 12 2017 3:01 AM UTC

}// 132/140

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Clock (UTC)

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hypothete

remix of d/2057 by u/hypothete

function u(t) {

d=x.getImageData(0,0,w=c.width=255,h=144);for(i=0;i<d.data.length;i+=4){n=w*(i/4%w)/w;d.data.set([n,0,w-n,w],i);}x.putImageData(d,0,0)

Mar 11 2017 8:20 PM UTC

}// 134/140

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u/recursive

Direct pixel manipulation. Interesting approach but it looks like it might always be larger. Does this have a dweeting application?
u/hypothete

I'm not sure. I put this one together in case people had ideas on how to shrink it.
u/veubeke

@hypothete new ImageData(W,H) saves some bytes as does incrementing i by 1 instead of 4 and calculating image data size manually. https://www.dwitter.net/d/2069

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gabrielsroka

function u(t) {

x.fillRect(C(t*Math.PI*2)*480+960,540-S(t)*480,10,50)
x.fillStyle=R(t*99%256,t*79%256,t*59%256)

Mar 11 2017 4:42 PM UTC

}// 95/140

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