Dweets awesomed by u/berti

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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UnacceptableUse

function u(t) {

c.width=1920;
for(i=0;i<1920;i++)
x.fillRect(i,T(t*(i/100))*1000,50,50);

Dec 29 2017 12:09 AM UTC

}// 72/140

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u/berti

72 chars ftw! go you.
u/magna

Golfed down to 56: https://www.dwitter.net/d/4605

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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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Show more comments…
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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Exca

function u(t) {

for(i=0;i<5184;i++){w=i%96,q=i/96|0,e=128+S((w-45)/(q-28)+t)*400;x.fillStyle=R(w/96*e,q/96*e,.5+.5*C(t)*e);x.fillRect(w*20, q*20, 20,20)
}

Dec 28 2017 12:32 PM UTC

}// 138/140

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u/Xen

nice style

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retera

function u(t) {

c.width=w=1920
v=t+400
for(q=255;q--;){x.fillStyle=R(q,q,q);x.beginPath();x.arc(w/2+C(v-q)*(v+q),540+S(v-q)*(v-q),40,0,6.283,!1);x.fill()}

Dec 28 2017 8:54 AM UTC

}// 138/140

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u/Xen

nice style
u/geb

#background
u/vain

well done!

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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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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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AliYil

remix of d/4059 by u/AliYil

function u(t) {

for(i=0;i<20;i++)for(j=0;j<12;j++){s=S(S(t)*i+j+t*10)*25+25
k=127
x.fillStyle=R(S(t*3)*k+k,S(t*2)*k+k)
x.fillRect(i*100-s,j*100-s,s*2,s*2)}

Dec 27 2017 8:07 PM UTC

}// 139/140

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u/Xen

very nice :-D
u/sigveseb

Good!
u/itsjustmustafa

so sick!

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Exca

function u(t) {

t/=4;for(i=0;i<1100;i++){d=C(t+i),s=i==0?2920:9-d*8;x.fillStyle=R(i,i,i,0.1);x.fillRect(S(t*2.5+i)*220*S(C(t)+i%50)+960*(i==0?-1:1),i,s,s);}

Dec 27 2017 7:58 PM UTC

}// 140/140

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u/magna

Wow!
u/Xen

impressive first 2 dweets
u/sigveseb

Very nice
u/mrremix

i really like this one... might do a remix later :]
u/CliffJonesJr

I remixed this into a tornado: https://www.dwitter.net/d/4590
u/lionleaf

#twister
u/Cloud

Milk path
u/vain

cool looking twister / tube

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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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