Dweets awesomed by u/hamptonio

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: #Opposites

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yonatan

remix of d/2643 by u/yonatan

function u(t) {

for(X=c.width=128;--X;)for(Y=74;Y;x.fillStyle=`hsl(${A=X*C(t)+Y**S(t)^Y*C(t)-X**S(t)},${A=A+t*99&63}%,${A}%`)x.fillRect(X,--Y,1,1)

Jan 12 2018 8:44 PM UTC

}// 130/140

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10 chars left!

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u/sigveseb

woah this one is sick! more upvotes!
u/whackashoe

This is awesome!!!!
u/sandromiccoli

niiiice
u/iverjo

Mind blown!
u/iverjo

#rotozoom
u/joeytwiddle

#colors

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Xen

remix of d/5798 by u/FrenchToast

function u(t) {

t?i=Z:Z=c.width=255
for(;i--;x.fill(x.arc(129-i*C(t+i),69+39*S(t+i/(S(t)+6)),i/9,0,9)))x.fillStyle=`hsla(${i+t*i},99%,50%,.1)`,x.beginPath()

Jan 10 2018 5:36 PM UTC

}// 140/140

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had to have a play

u/ETHproductions

I absolutely love this. Wish I could "Awesome!" multiple times, haha
u/Xen

one day there will be a "fav5" feature i bet ;-)
u/joeytwiddle

#rainbow #colors
u/katkip

#xweet

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DonKarlssonSan

function u(t) {

c.width=1920
for(X=0;X<25;X++)for(Y=0;Y<14;Y++){x.save()
x.translate(X*82,Y*82)
x.rotate(t+Y/6+X/9)
x.fillRect(-30,-30,60,60)
x.restore()}

Jan 7 2018 6:43 PM UTC

}// 138/140

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fourier.space

function u(t) {

t||(y={})
x.fillStyle=R(99-9*t,59,99,.2)
f=r=>y=>r*(y-y*y)
for(r=0;r<999;r++)x.fillRect(1920*(y[r]=f(3.44+r/1784)(y[r]||.7)),r/.93,5,1)

Jan 2 2018 3:01 PM UTC

}// 135/140

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Xen

remix of d/5150 by u/alien

function u(t) {

for(c.width=i=500;i--;x.lineTo(i,99+20.5*S(~~(.04*i+t))+9*C(i/9)));x.stroke()

Jan 1 2018 10:48 PM UTC

}// 77/140

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u/sigveseb

Kinda looks like a city skyline
u/donbright

awesome
u/donbright

@sigveseb totally i see it now!!
u/alien

oh .... the simplicity....

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ben

remix of d/4509 by u/ben

function u(t) {

v=(a,b,g,r)=>{for(i=0;i++<r;)x.fillRect(a+=S(g),b-=C(g),r/9,2)
r>1?v(a,b,g+=o,r*=.7)&v(a,b,g+=5,r):0}
o=S(t)/9+1
c.width=500
v(250,280,0,80)

Dec 29 2017 1:23 PM UTC

}// 140/140

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blowing in the fractal wind

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u/sigveseb

Sweet!
u/Xen

very nice!
u/Bendoman

Fabulous.
u/lionleaf

Amazing!
u/lynnlangit

love, love, love it!
u/nystrand

elegant!
u/iverjo

#recursive
u/lionleaf

#fractals
u/lionleaf

#fractal . hmm, maybe not plural
u/vain

so beautiful - amazing work!

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ben

function u(t) {

function v(a,b,g,r){if(r>1){x.fillRect(a+=r*S(g),b-=r*C(g),2,2)
v(a,b,g-1+C(t),r*=.7)
v(a,b,g+.5+S(t),r)}}c.width=500
v(250,270,0,80)

Dec 28 2017 9:28 PM UTC

}// 133/140

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u/Xen

LOVE IT!
u/ben

trying to make a swaying tree but requires too many characters to draw the branches
u/Xen

join the chat and show your code... :-)
u/sigveseb

Very good!
u/itsjustmustafa

recursive functions in under 140, love it!
u/Bendoman

Best thing on here by far.
u/FrankMoren27

awesome
u/iverjo

#recursive
u/lionleaf

#fractals
u/vain

incredible

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nystrand

function u(t) {

for(i=w=3e3,a=b=g=333*T(t%9/7);j=(i^a*a)%4,i--;x.fillRect(a+=g+C(j*5+t)*g-a/2-w+g,b+=g+S(j*9+t)*g-b/2-w,s,s),w=2)x.fillStyle=R(s=w*9,w,s,.1)

Dec 28 2017 2:50 PM UTC

}// 140/140

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u/sigveseb

This one is fantastic! Good job indeed
u/Bendoman

Brilliant!
u/Xen

very very impressive!
u/magna

HOW ON EARTH
u/nic

MIND:=BLOWN
u/lowpoly

Gawd, I learnt a lot today
u/Citiral

Since when does Javascript support black magic?
u/sigveseb

Needs more upvotes!
u/doof

this was such a delight to unpack :)
u/Lazy1337

wow
u/aleamb

amazing
u/iverjo

I'm awestruck
u/xem

unbelievable
u/trapkid

lol
u/aleamb

epic! one of the greatest dwitter
u/ThreeNPlusOne

sierpinski triangle :D
u/xem

It'd be nice to have a blog post explaining it :) (please?)
u/trupples

I didn't look much into it but it might have to do with a thing I read about once where if you have a point that "walks" half the distance towards a random corner of a triangle you'll end up drawing a sierpinski triangle sorta like you can see in https://www.dwitter.net/d/5097
u/trupples

And according to http://distrustsimplicity.net/articles/sierp… if you were to use 4 points instead of 3 you'd get a tetrahedron like in this dweet. Fascinating stuff
u/stiaje

#witchcraft
u/lionleaf

#top_of_the_year
u/Scaledish

wow
u/Tekmap

👏👏👏👏👏
u/vain

that's not from this world! incredible code / 3d fx and blur
u/rodrigo.siqueira

3D flying #sierpinski pyramid #fractal

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Moosething

function u(t) {

v=c.width|=m=x=>x>0?x*z:0;z=240;for(i=0;i<7;i++) x.arc(p=i==0?z-m(V=S(t*5)):i==6?v-z+m(-V):z+i*z,3*z,z/2,0,7),x.rect(p,0,7,3*z);x.fill()

Dec 27 2017 8:19 PM UTC

}// 136/140

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u/sigveseb

Newtons cradle :D
u/katkip

x.arc(p=i==0?z-m(V=C(t*2.812)):i==6?v-z+m(-V):z+i*z,3*z,z/2,0,7) for real life speed

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snail

function u(t) {

x.transform(540,0,0,540,(c.width=1920)/2,540);
for(i=-t,n=20;n--;i+=t/8)
x.lineTo(C(i), S(i));
x.fill("evenodd");

Dec 26 2017 10:19 PM UTC

}// 113/140

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u/sigveseb

starts of basic then gets pretty cool
u/lionleaf

It gets cooler and cooler the longer you wait!
u/vain

i love it

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