New #Sierpinski dweets

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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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: #Food

show FPS hide FPS share fullscreen

aemkei

remix of d/19202 by u/aemkei

function u(t) {

for(o=i=4059;i--;)o+=i%127<64?' ':i&i/64?'_':0;throw o

Jun 20 2020 9:40 PM UTC

}// 54/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#sierpinski 54

u/aemkei

Based on https://xem.github.io/codegolf/miniasciiserp…
u/katkip

welcome back to dwitter :)

show FPS hide FPS share 1 remix fullscreen

aemkei

remix of d/19116 by u/lifthrasiir

function u(t) {

S=s=' '
for(z=[i=4];i--;s+=s)z=z.map(x=>s+x+s).concat(z.map(x=>x+S+x))
throw z.join`\n`

Jun 20 2020 9:30 PM UTC

}// 87/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#sierpinski

show FPS hide FPS share 1 remix fullscreen

lifthrasiir

remix of d/19115 by u/KilledByAPixel

function u(t) {

s='   ';z=['▲'];eval("z=z.map(x=>s+x+s).concat(z.map(x=>x+'  '+x));s+=s;".repeat(4));throw z.join`
`

Jun 14 2020 6:42 PM UTC

}// 100/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/KilledByAPixel

🏆
u/KilledByAPixel

#sierpinski

show FPS hide FPS share 1 remix fullscreen

KilledByAPixel

remix of d/19105 by u/katkip

function u(t) {

throw[0,0,0,0].reduce((z,_,i)=>z.map(x=>(s='   '.repeat(2**i))+x+s).concat(z.map(x=>x+'  '+x)),['▲']).join`
`

Jun 14 2020 6:23 PM UTC

}// 109/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Throw Sierpinski ▲

u/KilledByAPixel

#sierpinski
u/donbright

hah, nice

show FPS hide FPS share 1 remix fullscreen

katkip

function u(t) {

s='';for(y=31;y>=0;y--){for(i=0;i<y;i++){s+="_"}for(x=0;x+y<32;x++){if(x&y)s+="__";else s+="*_"}s+='\n'}throw s

Jun 14 2020 4:59 PM UTC

}// 111/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#throw #sierpinski may break the other dweets so comment the whole dweet before scrolling down ;)

u/Bliss910

wow
u/electric-skeptic

VERY nice!

show FPS hide FPS share fullscreen

iznax

function u(t) {

for(X=69;X--;)for(Y=39;Y--;x.fillRect(X*28,Y*28,28,28))T=t*32|0,H=X-48+T,V=Y+T,a=(V-H)&(V+H),x.fillStyle=a?R(a*2):`hsl(${H},75%,50%)`

May 12 2020 3:46 AM UTC

}// 133/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Endless Staircase #sierpinski

u/sigveseb

Awesome!

show FPS hide FPS share fullscreen

iznax

function u(t) {

for(t%=12,N=90+t*8,c.width|=0,A=N|0;A--;)for(z=r=32;--r>1;x.fillRect(940+S(a=t+A*6.3/N)*r*z,540+C(a)*r*17,z,z))x.fillStyle=A&r?"#0002":"red"

May 11 2020 1:56 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Fan Blades #sierpinski

u/katkip

sierpinski flower

show FPS hide FPS share 1 remix fullscreen

HellMood

function u(t) {

z=256;t=z-z*t%73;t*=t/6e4;for(i=99;i--;)for(k=56;k--;)x.fillStyle=R(((i-k/2)*t&k*t)*z,z,z),x.fillRect(i*19,k*19,11,11)

May 8 2020 11:49 PM UTC

}// 118/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Zoompinski

Show more comments…
u/HellMood

Hard to trade resolution, speed, zoom smoothness and space against each other ;)
u/sigveseb

Nice!
u/HellMood

#sierpinski
u/bandaloo

how does a sierpinksi triangle come out of that expression in R? i do not understand
u/joeytwiddle

bandaloo, you can get a Sierpinski out of i&k binary and
u/bandaloo

thanks joeytwiddle. i did some research after this and learned a lot

show FPS hide FPS share fullscreen

pavel

remix of d/18074 by u/pavel

function u(t) {

c.width|=f=(X,Y,d,z=2+X*S(a=Y-4*t))=>d>>8?x.fillRect(960+1e3*X*C(a)/z,540+1e3*Y/z,6,6):[t,t+2,t+4].map(i=>f(X+C(i)/d,Y+S(i)/d,2*d));f(0,0,2)

Mar 28 2020 3:27 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#sierpinski dance

Show more comments…
u/sigveseb

Very clean!
u/DataMeta

So smooth!
u/aleamb

wow! very smart code!
u/lionleaf

What an amazing dweet. And little did you know I had already planned #dancing as the theme for April. You were ahead of the times :D
u/joeytwiddle

Nice! Here is a dirtier, underrated relative: d/13611
u/Qwitter

looks glossy!
u/vain

Very nice and smooth 3D rotated and transformed sierpinski

show FPS hide FPS share 1 remix fullscreen

pavel

function u(t) {

c.width|=f=(X,Y,r=Y,i=r>9&&3)=>{for(x.fillRect(X,Y,s=r<10&&12,s);i--;)f(X+r/2*C(a=23*i+t*C(i)),Y+r/2*S(a),r/2)}
f(960,540)

Mar 27 2020 6:17 AM UTC

}// 122/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Why can't you just be normal #sierpinski ?

Show more comments…
u/pavel

I have no idea why this works. I was messing around with something else and then a sierpinski triangle popped out and started spinning around...
u/xem

love the explanation ^ :D
u/katkip

nice
u/pavel

I think I figured it out. If you set s=12 the structure becomes more apparent. +t*C(i) doing SO MUCH WORK is an amazing accidental find.
u/pavel

This certainly looks like a 2d projection of something 3d, how to get the depth information?
u/pavel

The trick is to rng three 2d vertices and smoothly vary them. Every combination uniquely maps to a valid 2d projection of a 3d plane so our brains infer the 3d shape.
u/pavel

for(c.width|=i=3;i--;x.lineTo(960+500*S(i*t),540+500*S(i+t)));x.fill()

dwitter.net | #Sierpinski