Dweets awesomed by u/sirjofri

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: #Opposites

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joeytwiddle

remix of d/2612 by u/joeytwiddle

function u(t) {

t?c.width=W=200:P=Z=0;for(i=36;i--;j==Z&&(X-99)**2<60?Z=9:Z?onclick=e=>Z--:P++)j=i>>2,x.fillText(j?'🚌':'🐢',j?X=j%5*t/i*P/23%W:99,9*(j||Z))

Dec 29 2017 2:29 PM UTC

}// 138/140

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Crossy tortoise. Click to play

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u/zanella

Holy s**t, that was awesome!
u/joeytwiddle

Thanks hehe. The traffic patterns suffered in this version, to make room for the emojis.
u/iverjo

This needs more upvotes!
u/_nderscore

Awesome!
u/lionleaf

Oh wow! Amazing!
u/trupples

holy shit
u/SIGILLIM

I won! :D. This is so creative.
u/leon

extra
u/vberlier

super dope stuff here
u/joeytwiddle

The traffic I wanted, but cannot fit: j?X=j%5*(t+i)*P/400%W:99
u/lionleaf

#game #interactive #emoji #frogger #tortoise #bus
u/fujimotos

#playable
u/katkip

Impossible
u/hvianna

👍👍
u/joeytwiddle

For playability, the boxy d/2612 is my favourite

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crocidb

function u(t) {

c.width=1920;t*=2;
  for(i=0;i<3000;i++)
  x.fillRect((i/80)*(S(t+i)/2+1)*40, (i%80) * (C(t+i)/2+1)*20, T(t / 2) * 10, T(-t / 2) * 10)

Dec 29 2017 2:18 PM UTC

}// 134/140

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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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Xen

remix of d/4281 by u/ebiester

function u(t) {

c.width|=s=S(t)
x.translate(960,o=480)
for(i=o;i--;x.rotate(C(t/2)/i*t))x.fillStyle=R(i*C(t)*2,i,o),x.fillRect(i*6*s,i*6*s,i*2,i*2)

Dec 28 2017 6:09 PM UTC

}// 131/140

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Shoutz to ebiester.

u/ebiester

That's fantastic!
u/ebiester

Remixed your remix at #4550
u/Xen

thanks :-)

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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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jbl

function u(t) {

c.width|=0;for(i=2e3;--i;){p=t-i;d=i/9;x.fillStyle=R(d,0,0,S(p));x.fillRect((C(p)*850)%2e3+S(t)*500+990,(i*11+t*99)%2e3-99,S(p)*90,90)}

Dec 28 2017 12:13 PM UTC

}// 135/140

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u/sigveseb

Nice sense of scale
u/Xen

love it
u/Xen

done you a remix: #4403
u/jbl

thanks!
u/Xen

very welcome ;-)
u/vain

Looks like some bumpmapped tower. Very impressive! Great work!

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Yax

function u(t) {

c.width|=0
a=300
for(i=a;i--;)
b=t/2+i,x.fillStyle=R(a,b),x.fillRect(i*10,700+a*Math.abs(S(b)),25,a),x.fillRect(a*5+i*C(b),a+i*S(b),25,25)

Dec 28 2017 12:16 AM UTC

}// 138/140

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u/sigveseb

Very stylish!
u/magna

Wow!
u/iverjo

#sun
u/joeytwiddle

#landscape #ocean #sunset

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jaemiejaemie

function u(t) {

c.width=640;x.beginPath();for(i=0;i<640;i++){a=180;for(j=1;j<t*60%60;j+=~~(t)%2+1){a+=S((i+t*60)*j/20)*50/j}x.lineTo(i,a)}x.stroke()

Dec 27 2017 10:31 AM UTC

}// 132/140

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demonstration of basic fourier curves (square/saw)

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u/sigveseb

Very cool!
u/joeytwiddle

Nice. DSP hero!
u/iverjo

Kudos!
u/RomanW

Excellent!
u/joeytwiddle

#math
u/katkip

#fourier

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Xen

remix of d/3636 by u/aemkei

function u(t) {

x.font="52em a";~~(t*t)%13||x.fillText([..."😮😀😁😐😑😬😆😫😠"][frame%9],400,800)

Dec 14 2017 9:25 PM UTC

}// 73/140

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u/alien

what is the ~ operator doing there?
u/Xen

Math.floor

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magna

remix of d/1480 by u/magna

function u(t) {

c.width|=0
x.font='50px monospace';
(u+'')
.slice(0,t*3+S(t)*5)
.concat(t*2&1?'|':'')
.split('\n')
.forEach((s,i)=>x.fillText(s,0,++i*50))

Apr 18 2017 1:55 AM UTC

}// 138/140

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Pair programming nightmare

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u/joeytwiddle

that title made me Lol :D
u/sigveseb

:D
u/Jenky

That's a really clever illusion, love it
u/magna

Heh, thanks! Brought it down to 123 chars in hopes of adding occasional mistakes like skipped characters / typos etc., but couldn't immediately find a way. In case anyone wants to give it a shot: https://www.dwitter.net/d/2522
u/donbright

:o
u/Polyducks

Could you make a random function to skip odd spaces?
u/magna

It has to be a deterministic PRNG so that the places that are skipped are persistent. Otherwise, it would just look like a random flipping of characters. I thought about it, but couldn't immediately find a short solution.
u/Polyducks

That's a great point. Dwitter is such a mind twister!
u/highfestiva

Groovy baby!
u/magna

#quine
u/joeytwiddle

#funny

dwitter.net | sirjofri (6898)