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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katkip

remix of d/15776 by u/katkip

function u(t) {

eval("⡸⠮⡦⡩⡬⡬⡒⡥⡣⡴⠨⠹⠶⠰⠫⡓⠨⡴⠩⠪⠲⠰⠰⠬⠵⠴⠰⠫⡃⠨⡴⠩⠪⠲⠰⠰⠬⠲⠰⠬⠲⠰⠩".split``.map(f=x=>String.fromCharCode(x.charCodeAt(0)^4e9)).join``)

Sep 23 2019 3:17 PM UTC

}// 117/140

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this is how blind people draw a circle

u/katkip

#meme #encode #encoder #cipher
u/katkip

also good #obfuscator

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katkip

function u(t) {

with(x)t&&t<1?(fillStyle=`hsl(${250-t*80} 89%70%)`,fillRect(0,0,200-t*30,300),rotate(1.048),drawImage(c,0,0,590,360)):translate(960,540)

Sep 19 2019 3:56 PM UTC

}// 136/140

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Snowflake #snow #winter #fractal #drawimage thx for u/yonatan for golfing

u/mildlybean

Cool! btw, hsl(${250-t*80} 89%70% is 1 byte smaller
u/joeytwiddle

hsl(${250-t*80} 89% 70% works in Safari, for +0

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mildlybean

function u(t) {

onmousemove=e=>Y=e.y*3.54;if(!t)L=[],Y=540,L[m=99]=540;c.width|=L[-1]=Y;for(i=m;i--;x.fillRect(i*20,L[i],9,9))L[i]=t?(L[i-1]*2+L[i+1])/3:540

Sep 7 2019 6:07 PM UTC

}// 140/140

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#interactive

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LimeLaser

function u(t) {

X=o=>960+500*C(t+o)
Y=o=>540+500*S(t+o)
x.beginPath()
x.moveTo(X(1),Y(2))
x.bezierCurveTo(X(4),Y(8),X(16),Y(32),X(64),Y(128))
x.stroke()

Sep 1 2019 8:31 AM UTC

}// 136/140

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Curved Geometry Drawer

u/LimeLaser

This uses the bezierCurveTo method with different values to see what shapes it can draw.
u/marmph

slap a few sines and cosines together and BAM ART

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KilledByAPixel

remix of d/15572 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`睩瑨⡸⥦潲⡣⹷楤瑨簽〬晩汬剥捴⠰ⰰⰲ攳ⰲ攳⤬杬潢慬䍯浰潳楴敏灥牡瑩潮㴧獣牥敮✬景湴㴧㤰敭∧Ⱪ㴳㭩ⴭ㭦楬汔數琨❃䡒位䅔䥃✬㐹⭩⨹ⰱ〲〬ㄸㄵ⤩晩汬却祬攽恨獬⠤筩⨱㈰⭴⨱㥽‹㤥㔰╠`.replace(/u(..)/g,"$1%")))

Aug 29 2019 9:56 PM UTC

}// 135/140

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Chromatic aberration v2

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LimeLaser

function u(t) {

x.beginPath(s=8e3,d=5)
p=[[C(t),0,d+t**.8],[0,S(t),d+t**.8]]
p.map(v=>x.lineTo(960+s*v[0]/v[2],540-s*v[1]/v[2]))
x.stroke()

Aug 29 2019 4:31 AM UTC

}// 123/140

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Grid Spiral

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mildlybean

function u(t) {

for(c.width+=j=0;10>j;j+=2.094)for(i=30;i--;)x.moveTo(n=960+S(t+j)*(g=S(t)*600),m=540+C(t+j)*g),x.arc(n,m,18*i,0,7);x.lineWidth=9;x.stroke()

Aug 23 2019 12:49 AM UTC

}// 140/140

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I spent hours on this one #moire

u/katkip

interesting

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Benjiji

function u(t) {

c.width^=0
N=999*S(t/10)
for(i=0;i<N;)Z=2*i/N-1,Y=S(i*0.2)*Z*0.3,X=C(i++*0.2)*Z+Y*C(0.7),Y=Z+Y*S(0.7),x.fillRect(X*300+960,-Y*300+540,15,5)

Aug 19 2019 9:18 PM UTC

}// 139/140

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#hourglass #runningtime

Show more comments…
u/Benjiji

Did not find a way to get it to start over more quickly in 140...
u/13thptr

Multiplying by 0.2 is equivalent to dividing by 5 (gain 2 bytes each time) and cos(0.7rad) is roughly 0.76 which can be written .76
u/13thptr

also moving c.width^=0 to the first part of the for loop saves 2 bytes
u/13thptr

123 : N=999*S(t/10) for(c.width^=i=0;i<N;)Z=2*i/N-1,Y=S(i/5)*Z*.3,X=C(i++/5)*Z+Y*.76,Y=Z+Y*.64,x.fillRect(X*300+960,-Y*300+540,15,5)
u/13thptr

*126: N=999*S(t/10);for(c.width^=i=0;i<N;)Z=2*i/N-1,Y=S(i/5)*Z*.3,X=C(i++/5)*Z+Y*.76,Y=Z+Y*.64,x.fillRect(X*300+960,-Y*300+540,15,5)
u/Benjiji

Nice, thx!
u/atgz

you can also use .7 instead of 0.7, might come in handy next time

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TheYoungBard

remix of d/739 by u/donbright

function u(t) {

c.width=900;for(i=0;i<250;i++){x.fillRect(450+C(i*t/18)*i,250+S(i*t/18)*i,4,4)}

Aug 14 2019 1:08 PM UTC

}// 79/140

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Psychadelic Effect

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TheYoungBard

function u(t) {

c.width=1920
for(i=0;i<96;i++)
x.fillRect(850+S(t-i*3.14/16)*300,600+C(t-i*3.14/12)*300,9,9)

Aug 14 2019 12:21 PM UTC

}// 92/140

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Pretzel (Lissajous Curve)