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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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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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nick

function u(t) {

r=q=>x.fillStyle=R(45*C(3*q),123*C(q),222*C(5*q))
c.onmousemove=e=>{b=125;x.fillRect(e.pageX*3.4,e.pageY*3.4,b*C(t)+10,b*C(t)+10);r(t)}

Mar 11 2017 5:40 AM UTC

}// 136/140

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u/gabrielsroka

Move the mouse

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nick

function u(t) {

r=h=>(75*(S(h)+1.5))
a=r(t)
b=t
d=(a*a+b*b)**.5
for(j=0;j<d;j+=1.5)
x.fillRect(j*a*10/d,j*b*20/d,9,5)
x.fillStyle=R(r(j*2)*2,S(t)*223,256)

Mar 11 2017 12:13 AM UTC

}// 138/140

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Dwitter Primer: http://nickpisca.com/sherpa/?p=600

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farter

function u(t) {

t?(p=a[a[0]++],o=p>>6&255,p&1&&(o=a[o]),d=p>>4&3,p&2&&(d=a[d]),n=a[d],a[d]=[o,n+o,n-o][p>>2&3]):a=[4,0,1,0,101,177,121,209,256]//watch a[1]

Mar 10 2017 11:53 AM UTC

}// 139/140

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console.log(a[1]), something is running inside this "little computer"

u/farter

but sorry for no use of canvas lol
u/farter

console doesn't work now, instead, append this: ;c.width=150;x.fillText(a[1],0,10)

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hypothete

function u(t) {

d=1920;e=1080;
f=Math.random;
g=(t%e);
x.font=g+'px Arial';
x.fillText('🐞',d*f()-g/2,e*f());

Mar 10 2017 6:55 AM UTC

}// 93/140

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u/PiggyClone205

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