Dweets awesomed by u/lsh

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: #ScaryMovies

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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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Show more comments…
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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sadropol

remix of d/3748 by u/sadropol

function u(t) {

c.width|=0;for(i=1;i<140;i++){b=2*t+i;o=200-(S(b+5)*126)%256;x.fillStyle=R(0,o,0,1);x.fillRect(940+((i/60)%1)*S(b)*200,400+i*6%400,8,8);}

Dec 27 2017 12:01 AM UTC

}// 138/140

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u/sigveseb

merry christmas!
u/joe724

Beautiful!
u/Chipnstein

just got plastuer and made a nice redish background to apply this on my desktop, awesome!
u/vrishankm13

new here, but this is already my all time favorite, so beautiful
u/lionleaf

Awesome! Merry Christmas :D Some good ones last year as well, if you manage to find them ^^
u/hollo47

#tree #christmas
u/vain

beautiful xmas tree

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thespite

remix of d/2280 by u/thespite

function u(t) {

w=1920,h=1080,c.width=w,d=.5;for(a=-d;a<d;a+=.02)for(b=-d;b<d;b+=.02){x.fillRect((d+a)*w,(d+b+.15*C(10*Math.sqrt(a*a+b*b)-2*t))*h,40,10)}

Mar 23 2017 6:43 PM UTC

}// 137/140

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keithclark

function u(t) {

for(a=c.width|=0;l=C(t),m=S(t),d=C(a)*S(b=a*1.2502),e=S(a--)*S(b);x.fillRect((d*l+e*m)*h+960,C(b)*h+540,i=h/40-5,i))h=900/(2+(e*l-d*m))

Mar 23 2017 5:49 PM UTC

}// 135/140

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u/recursive

Superbly golfed
u/keithclark

Even smaller: https://www.dwitter.net/d/2298
u/donbright

bravo

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aemkei

remix of d/2238 by u/aemkei

function u(t) {

r=500;c.width^=0;for(I=F=2;F>-2;F-=1/2e3)x.fillRect(C(F)*S(L=F*r-t)*r+999,S(F)*r+520,W=(20&((S(I+=.25032)*50)*C(.1+I/1000)*.7))*C(L/2),W)

Mar 21 2017 10:36 PM UTC

}// 137/140

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the world …

u/sfz

you are a god.min.js
u/sigveseb

well done!
u/iverjo

#sphere #earth #globe
u/vain

What?? top ++++

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aemkei

function u(t) {

t||(W=c.width=600);i=W;for(x.fillRect(0,0,W,W);i--;x.fillText(unescape("%u30B"+C%9),i*9,C=~~(t*9+i**3)*12%W))x.fillStyle=R(0,i&&W,0,i?1:.05)

Mar 19 2017 8:18 PM UTC

}// 140/140

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Welcome to the Matrix!

u/iverjo

#matrix
u/danny@hille.dk

More speed longer trails !t?W=c.width=600:i=W;for(x.fillRect(0,0,W,W);i--;x.fillText(unescape("%u30B"+C%9),i*9,C=~~(t*15+i**3)*11%W))x.fillStyle=R(0,i&&W,0,i?1:.03)
u/vain

Beautiful looking remake of the matrix fx

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aemkei

function u(t) {

for(x.fillRect(0,0,i=W=c.width=400,W);i--;x.fillText(unescape("%u30A"+~~(i+t)%9),W*S(i*W),W*(S(i)+99/(i+99)*t)%W))x.fillStyle=R(0,i?W:0)

Mar 18 2017 10:28 PM UTC

}// 136/140

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u/sfz

interesting different way to get to something similar to what I did the other day, I like it! https://www.dwitter.net/d/2171
u/joeytwiddle

#matrix

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mxfh

remix of d/2184 by u/mxfh

function u(t) {

for(w=540,i=W=4*w;i;x.beginPath(),x.arc(W*(T(i)+s*t/3)%W,i?w+w*S(r=s*W):w,i?s*9:W,0,6),x.fillStyle=R(i,i,r%i,i?1:.1),x.fill())s=w/(i--*3+w)

Mar 18 2017 4:36 PM UTC

}// 139/140

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u/sfz

great idea and execution 💯💯💯
u/donbright

excelllent work
u/iverjo

#parallax #stars
u/mxfh

arc
u/mxfh

#arc

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veubeke

function u(t) {

t?_[Math.random(B=c.width^=0)*6|0]++:_=[0,0,0,0,0]
x.font='100px O'
_.map((v,i)=>x.fillText('🐌',110+v,$=200+i*179,x.fillRect(0,$-130,B,4)))

Mar 17 2017 10:17 PM UTC

}// 139/140

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Show more comments…
u/sigveseb

Lol!
u/veubeke

Fun hack: using *6 instead of *5 for the index adds a 6th element containing NaN. The 6th line is visible but not the snail because drawing the snail involves the NaN value.
u/gabrielsroka

neat, but are the snails going backwards?
u/innovati

you're too silly :3
u/tapgiles

What's with the _?
u/veubeke

@gabrielsroka: if you have an emoji font with a snail looking left then they’re going backwards, yes
u/lionleaf

Going backwards on my phone, but forwards on my laptop. This should be part of the snail emoji spec!!
u/veubeke

I’ll bring it up at the next snail emoji consortium meeting.
u/gabrielsroka

lol, they're soooo slow, they're going backwards. and yes, mine look left
u/gabrielsroka

according to http://emojipedia.org/snail/ Apple is in the minority, and Windows 8.1 looks left
u/magna

On my computer, the best snail always wins.
u/ilSilvano

Great idea! :-D
u/iverjo

#random
u/micahcowan

#emoji #snailrace

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magna

remix of d/2172 by u/magna

function u(t) {

c.width=w=1920;h=1080;n=128;m=72;s=w/n;for(i=n*m;i--;X=((i+t/9)%(m*n))%n,Y=i/n,b=S(X*Y)**.5,x.fillRect(X/n*w,Y/m*h,b*s,b*s));

Mar 17 2017 5:52 PM UTC

}// 125/140

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