Dweets awesomed by u/KilledByAPixel

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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Current theme challenge: #Food

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KilledByAPixel

remix of d/11415 by u/metamero

function u(t) {

c.before`🔥`

Mar 1 2021 10:42 PM UTC

}// 11/140

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#fire

u/tomxor

Wait what? such a strange function, I can't find any docs
u/danny@hille.dk

https://developer.mozilla.org/en-US/docs/Web…

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KilledByAPixel

function u(t) {

with(x)for(i=c.width|=z=900;i--||fillText('🚗',-340,!rotate(C(-t,translate(z,800+99*S(-t)))/5));font='5in"')fillRect(i,z-99*S(i/500-t-5),9,z)

Mar 1 2021 7:13 PM UTC

}// 140/140

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Bumpy Road 🚗

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BackendForth

function u(t) {

v=Math.random
for(i=4999;i--;)x.fillRect(1920*v(),1080*v(),9,9)
a=1080*v()
if(v()<.04)for(i=1080;i--;){x.clearRect(a,i,9,9)
a+=(v()-.5)*9}

Feb 28 2021 3:59 PM UTC

}// 138/140

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#lightning

u/magna

Great technique!

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katkip

function u(t) {

f=a=>b=>g=c=>c?([w,y]=g(c-1),[w*a-b*y,a*y+b*w]):"10"
c.width=100;
x.fillText(f(3)(5)(2)[0]+"+"+f(3)(5)(2)[1]+"i",30,30)
// (3 + 5i) ** 2

Feb 28 2021 3:32 PM UTC

}// 136/140

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shortest complex exponent. use it for fractals

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erin

remix of d/21778 by u/erin

function u(t) {

for(i=d=99;i--;)x.fillRect(e=t*i,e&t*d,1,1)

Feb 28 2021 4:48 AM UTC

}// 43/140

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smallest Sierpinski i could come up with

u/danny@hille.dk

or for(i=d=99;i--;)x.fillRect(t*d&t*i,t*d,1,1)

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tomxor

function u(t) {

t?S=u[X+u+Y]^=1:X=Y=D=64;D=D+2*S+1&3;D&1?X+=D-2:Y+=D-1
x.fillStyle=R(!S<<8);x.fillRect(X*8,Y*8,8,8)

Feb 27 2021 5:42 PM UTC

}// 99/140

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Micro #langton's #ant

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nystrand

function u(t) {

eval(unescape(escape`𩡯𬠨𪐽𭰽𜡥𜰬𩰽𚁯𛁡𛁢𛁺🐶𙑢𚱩𙐳𚠷𛁚👺𛰸𞀸𚰮𜀳𛁖👩𙐳𚠸𞐩🐾𫠭𛐿𩰨𭀯𫠭𥠬𨠪𠰨𫰩𛑡𚡓𚁯𚐬𮠬𨐪𠰨𫰩𚱢𚡓𚁯𚐩𞡸𛡦𪑬𫁒𩑣𭀨𨐯𦠫𞐶𜀭𭰬𨠯𦠫𝐲𜀭𭰬𠠽𜠪𭰯𦠬𠠬𮀮𩡩𫁬𤱴𮑬𩐽𤠨𥠭𭰬𜠯𦠭𭰬𜐳𞐭𥠬𭰽𛠲𚐩𞱩𛐭𞰩𩰨𪐬𫠽𝠬𪐥𝰩`.replace(/u../g,'')))

Feb 26 2021 5:52 PM UTC

}// 140/140

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u/rodrigo.siqueira

Amazing! Welcome back, Nystrand. I still remember the B&W version of this one (/d/14899). And your dweet d/4388 (Sierpinski witchcraft) is one of the most amazing I've ever seen. Thanks.
u/nystrand

Thank you Rodrigo!
u/vain

hot stuff. like the colors and motion blur

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Odog8

function u(t) {

t?x.fillRect(a%32,a/32|c,1,'翿耀瑍魷⑕ꤢ╕鬢⛕ꤢ瑍ꬢ耀翿쀀쀀찀3ﰀ찀3쀀쀀쀀쀀쀀쀀쀀쀀쀀쀀쀀쀀쀀쀀쀀耀쀀'.charCodeAt(a/16)>>(a++%16)&1):(a=0,c.width=100)

Feb 26 2021 5:48 PM UTC

}// 139/140

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THIS WAY

u/magna

Lovely!
u/384.cz

#pixelart

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rodrigo.siqueira

remix of d/21736 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,2e3,2e3),i=960;i>-960;i--,x.clearRect(960+i+T(i*i+t),540+S(i/39-t)*350**C(i/99+S(i/22-t*2)),4,4))x.globalAlpha=.1

Feb 23 2021 4:47 PM UTC

}// 132/140

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Electrical sparking lines

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New_Core

remix of d/21735 by u/tomxor

function u(t) {

for(c.width|=i=69;i--;x.fillRect(900+i%3*80+i*i*(i/2e3)*T(i%3+5.283),300+~~(i/3)*20,50,90))x.fillStyle=`hsla(${i+t*60},99%,50%)`

Feb 23 2021 3:41 PM UTC

}// 128/140

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was just testing...

u/tomxor

:) I actually started out with a similar idea, trying to describe it as a function... but then I got too greedy and wanted it to be exactly the same as the GEM version. This feels pretty close to the more modern logo though!

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