Dweets awesomed by u/ebiester

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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ebiester

remix of d/4251 by u/ebiester

function u(t) {

c.width=w=1920
s=S(t/2.5)*10
x.translate(w/2,w/4)
for(i=0;i<250;i++)x.fillStyle=R(i,0,i),x.fillRect(i%25*s+i,i%10*s+i,2,i/5),x.rotate(t/40)

Dec 28 2017 10:36 PM UTC

}// 139/140

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This is probably the end of this idea. Thanks to the folks on discord for kickstarting some ideas, especially Xen!

u/Xen

no worries, keep playing with the code ;-)

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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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mattdzugan

function u(t) {

c.width|=0;for(i=0;i<157;i++){n=t/50+i/150;x.fillStyle=R(0,99,240,.5+i/400);x.fillRect(960+300*C(24*n),540+300*C(18*n+.4),6+i/8,6+i/8);}

Dec 28 2017 9:19 PM UTC

}// 136/140

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sandromiccoli

function u(t) {

x.strokeRect(c.width/2+T(t/10)*200, c.height/2+S(t*50)*500,T(t*2)*10,50)

Dec 28 2017 9:10 PM UTC

}// 72/140

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ADESONOM

function u(t) {

c.width=1920;m=40;for(i=-1;i<50;i++)for(j=-1; j<50;j++){s=S(t*1.25+i/10);x.fillRect(i*m, j*m, s*m, s*m);n=(s+1)/2*255;x.fillStyle=R(n,n,n)}

Dec 28 2017 9:05 PM UTC

}// 139/140

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Waves

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JeremyLikness

function u(t) {

b=540;x.beginPath();x.strokeStyle=R(S(t)*255,C(t)*255,64,0.1);x.moveTo(S(t)*b*2+b,C(t)*b+b);x.lineTo(C(t+90)*b*2+b,S(t+180)*b+b);x.stroke();

Dec 28 2017 7:36 PM UTC

}// 140/140

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u/Xen

nice transition

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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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ebiester

remix of d/4251 by u/ebiester

function u(t) {

c.width|=0
o=125
s=S(t)+C(t)
x.translate(960,480)
for(i=0;i<o;i++){
x.fillStyle=R(i*2,i*1,i*o)
x.fillRect(i*s+o,i*s+o,2,i)
x.rotate(t/11)}

Dec 28 2017 3:57 AM UTC

}// 138/140

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u/Xen

done you a remix #4452

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space_hopper

function u(t) {

k=t
c.width+=0
for(i=-Math.PI;i<Math.PI;i+=0.01){
p=960*C(k*i)*C(i)
q=540*C(k*i)*S(i)
x.lineTo(p+960,q+540)
}x.stroke()
x.fill("evenodd")

Dec 28 2017 3:50 AM UTC

}// 138/140

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