Dweets awesomed by u/geb

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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pavel

remix of d/14840 by u/pavel

function u(t) {

x.beginPath(x.lineWidth=FPS=p=Math.PI)
k=frame
k%2?n=99:(n=2+k/2,r/=C(p/n))
for(j=n+1;j--;)x.arc(960,540,t?r:r=60,a=2*p*j/n+11,a)
x.stroke()

Jun 30 2019 10:28 PM UTC

}// 140/140

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u/katkip

Wow! Perfect geometry

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pavel

function u(t) {

for(c.width=960,p=Math.PI,r=270,k=64;k--;)for(r*=k%2||C(d),n=j=k%2?7+k>>1:99;j--;x.arc(480,270,r,a=2*d*j-p/2,a))d=p/(n-1)
x.fill`evenodd`

Jun 29 2019 11:20 PM UTC

}// 137/140

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Vertex sphere

u/pavel

Based on Mathologers shirt: https://www.youtube.com/watch?v=O1sPvUr0YC0
u/KilledByAPixel

👍
u/Xen

oooooo nice
u/pavel

With more layers the middle circle does not shrink to nothing, it asymptotically approaches about 11% of the radius

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pavel

remix of d/14826 by u/KilledByAPixel

function u(t) {

for(w=j=c.width|=f=o=>500*C(q=22/7/(3+~~o*5%8))/C((a+t)%(2*q)-q);a=44/7*--j/w;x.arc(960,540,f(t+1)*e+f(t)*(1-e),a,a))e=(t%1)**9
x.fill()

Jun 29 2019 7:03 AM UTC

}// 136/140

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u/13thptr

smooth
u/katkip

wooow
u/KilledByAPixel

I knew pavel would make it better. ;)
u/KilledByAPixel

https://imgur.com/MDGvSaU
u/donbright

amazing

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joeytwiddle

remix of d/14824 by u/donbright

function u(t) {

c.width=400
d=(r,T)=>x.fillText(T,200+r*S(a=i/1.91),115-r*C(a))
for(i=N=t|0;i>1;i--)
for(N%i||d(60+i,i),k=50;k--;)N%i||d(k,'*')

Jun 29 2019 4:36 AM UTC

}// 127/140

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Prime factors on a clock #primes #math

Show more comments…
u/joeytwiddle

Shouts to donbright and taupelink!
u/joeytwiddle

35, 55, 77, 95, 115 and 119 all draw a lambda
u/katkip

Wow
u/taupelink

yay
u/DataMeta

Noice!
u/joeytwiddle

Oops this shows all factors, not just prime factors
u/donbright

hee hee sorry my description on the original was slightly misleading
u/donbright

you have golfed it down to where you might actually be able to do something only with prime factors
u/donbright

holy smokes... i just realized something. if you express an integer using this method, there are only 2 to the twelfth possible representations, which is 4096
u/joeytwiddle

Even fewer, since 4, 6, 8, 9, 10, and 12 never appear alone
u/joeytwiddle

They all light up at t=13860, after 3.85 hours #waitforit
u/joeytwiddle

For seconds/minutes use S(a=i/9.55) and d(60+i/4,i)
u/joeytwiddle

To see factors of odd numbers only, and quickly: i=N=t*22|1
u/donbright

cool

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katkip

remix of d/4001 by u/itsjustmustafa

function u(t) {

c.style.background=R();for(c.width|=i=5;i--;x.font=`2cm"`)x.fillText([..."🌞🌍👽🚀."][i],880+i*150*S(t*i),590+i*90*C(t*i))

Jun 23 2019 8:37 AM UTC

}// 119/140

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17 bytes less #golf

u/donbright

bwahaha

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KilledByAPixel

remix of d/14715 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛁣𛡷𪑤𭁨𯀽𜀬𜡥𜰩𞱸𛡧𫁯𨡡𫁃𫱭𬁯𬱩𭁥𣱰𩑲𨑴𪑯𫠽𘡳𨱲𩑥𫠢𞱦𫱲𚁩🐹𞱩𛐭𞱸𛡦𪑬𫀨𮀮𨑲𨰨𞐶𜀫𜐳𞐪𤰨𡠽𪐪𛠷𚱴𚐬𝐴𜀫𜐳𞐪𠰨𡠩𛀲𝀴𛁱🐭𭀯𜠭𡠬𬐫𜰮𜐴𚐩𚑸𛡢𩑧𪑮𤁡𭁨𚁸𛡦𪑬𫁓𭁹𫁥👠𪁳𫀨𙁻𪐪𜐲𜁽𘀹𞐥𝐰𙑠𚐻`.replace(/u../g,'')))

Jun 23 2019 1:07 AM UTC

}// 140/140

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Additive Semicircle Pinwheel

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rodrigo.siqueira

remix of d/12640 by u/rodrigo.siqueira

function u(t) {

if(!t){X=Y=Z=1;for(i=2.3e5;i--;x.fillStyle=R(i/270,i/1e3,Z*2))Z+=(X*Y-Z)/59.1,X+=(Y-X)/11,Y+=X*(28-Z)/99,x.fillRect(960+X*48,1200-Z*24,3,4)}

Jun 23 2019 1:01 AM UTC

}// 140/140

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Lorenz Attractor in color - this will be printed and framed. #lorenz #attractor

u/katkip

you really like #chaos math and attractors
u/taupelink

With good reason, I think :) They are beautiful and, well, strange
u/KilledByAPixel

You should frame the code along with the image ;) Awesome work.
u/rodrigo.siqueira

The prints are ready! Yes, source code is printed with images. https://twitter.com/rsiqueira/status/1143629…

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KilledByAPixel

remix of d/14714 by u/KilledByAPixel

function u(t) {

with(x)for(c.width|=j=270;j-=9;)for(beginPath(lineWidth=i=6);i--||stroke();arc(960+j*C(b=i*1.26),540+j*S(b),j,z=t+b,z+2.53))strokeStyle=R(j)

Jun 22 2019 8:44 PM UTC

}// 140/140

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Semicircle Pinwheel #3

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KilledByAPixel

remix of d/14713 by u/KilledByAPixel

function u(t) {

with(x)for(0,fillRect(0,0,c.width|=i=7,2e3),lineWidth=29;i--||stroke();arc(960+250*C(b=i*1.05),540+250*S(b),250,z=t+b,z+2))strokeStyle="red"

Jun 22 2019 7:23 PM UTC

}// 140/140

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Semicircle Pinwheel #2

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KilledByAPixel

remix of d/14627 by u/KilledByAPixel

function u(t) {

x.fillRect(0,0,c.width|=0,2e3)
x.fillStyle="#5CF"
for(i=8;i--;x.arc(960+250*C(b),540+250*S(b),250,z=t+b,z+3.142))b=i*.7854
x.fill('evenodd')

Jun 22 2019 6:05 PM UTC

}// 140/140

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Half Circle Pinwheel

u/katkip

#flower

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