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

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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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tactical_retard

function u(t) {

if(!t){
s=256
for(i=s*s;i--;){X=0|i/s
Y=i%s
A=X-s/2
B=Y-s/2
d=(A*A+B*B)**.5&X%Y
x.fillStyle=R(b=d*100,b,b)
x.fillRect(X*7.5,Y*4.2,7.5,4.2)}}

Sep 29 2021 3:45 PM UTC

}// 140/140

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#sierpinski

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donbright

function u(t) {

質=(n)=>{for(j=2;j<n;j++){if (n%j==0)return n}return 0}
格=7
for(X=299;X--;)
for(Y=299;Y--;)
if (質(X&Y)) x.fillRect(格*X,格*Y,格,格)

Sep 19 2021 5:40 PM UTC

}// 128/140

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Prime fun 1 / 3 - This is the standard X&Y (binary AND) Sierpinski triangle picture but only where X & Y is a prime number. perhaps revealing a relationship between primes and binary AND #math #primes

u/donbright

(note white = X&Y is prime, black = X&Y is composite)
u/andrea270872

this is really nice. retro and mathsy at the same time!
u/donbright

#Sierpinski

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tactical_retard

function u(t) {

for(X=1920;X--;){
Y=frame

x.fillStyle=`hsl(${t*60*5},99%,50%`
x.fillRect(X,0,1,(X^Y) % ((X&Y)/1) )
}

x.drawImage(c,0,1)

Sep 17 2021 2:10 PM UTC

}// 121/140

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#sierpinski

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pavel

remix of d/23821 by u/pavel

function u(t) {

for(c.width=w=127,i=n=9087;i--;u[i]=420*t>n-i?p&u[r=i+w+i*t%3|0]<1?u[r]++:p:(X-Y/2-30*t-w&Y)<1)x.fillRect(X=i&w,Y=i>>7,.7,p=u[i])

Sep 10 2021 9:36 PM UTC

}// 129/140

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Mr Sierpiński, I don't feel so good

u/Joachim

#sierpinski #particles #physics
u/tomxor

interesting idea (transitioning between imovable and movable).
u/Toby

Very original!
u/rep_movsd

Entropy :(
u/donbright

bravo

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tomxor

remix of d/23756 by u/tomxor

function u(t) {

for(Y=t*480%720|0,X=1280;X--;!Z|!Y|Y>640|(Z/480+.75&Y/480+.83&(X|Y)/16%15)&&x.fillRect(320+X,180+Y-Z/6*S(Z/203),3,4))Z=X>640?1279-X:X

Sep 5 2021 8:28 PM UTC

}// 133/140

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Smolr #book of #sierpinski

u/tomxor

Someone's been drawing in the margins...
u/erin

magic

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tomxor

remix of d/23746 by u/rep_movsd

function u(t) {

for(Y=t*480%720|0,X=1280;X--;!Z|!Y|Y>640|(Z/480+.75&Y/480+.83&C(X*Z*Y)>.8&&Y&15)&&x.fillRect(320+X,180+Y-Z/6*S(Z/203),3,4))Z=X>640?1279-X:X

Sep 5 2021 3:30 PM UTC

}// 139/140

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Smolr #book of dweet

u/tomxor

Smolr #book of #sierpinski
u/tomxor

Yay, remix fail

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tactical_retard

function u(t) {

c.width|=0
s=2**(0|4+S(t)*4)
x.setTransform(1920/s,0,0,1080/s,0,0)
for(i=s*s;i--;){
X=0|i/s
Y=i%s;(t%1>.5?X&Y:!(X&Y))&&x.fillRect(X,Y,1,1)
}

Aug 28 2021 5:53 PM UTC

}// 140/140

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#sierpinski

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tactical_retard

function u(t) {

c.width=t*100
s=256+(2**~~t)
for(i=s*s;i--;x.fillRect(X,Y,1,1)){
X=0|i/s
Y=i%s
d=(X*X+Y*Y)**.5
b=X*d&Y*d
x.fillStyle=R(b,b,b)
}

Aug 20 2021 2:16 AM UTC

}// 127/140

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warped #sierpinski

u/384.cz

amazing

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rodrigo.siqueira

remix of d/23572 by u/rodrigo.siqueira

function u(t) {

for(Z=c.width=i=175;i--;)for(H=Z;H--;x.fillRect(i,H,1,1))Y=H/9-5,r=((X=i/10-9)*X+Y*Y+1-C(t*8))/Z,x.fillStyle=R(K=T(Y/r|X/r+t*Z)*Y+5/r,K/5)

Aug 17 2021 5:16 PM UTC

}// 138/140

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Spierpinski debris around a pulsating core #sierpinski

u/danny@hille.dk

Beautiful
u/danny@hille.dk

better resolution + performance for(I=new ImageData(c.width=w=175,w),i=w*w;i--;)Y=i/w/9-5,r=((X=(i%w)/10-9)*X+Y*Y+1-C(t*3))/w,I.data.set([K=T(Y/r|X/r+t*25)*Y+16/r,K/6,,255],i*4);x.putImageData(I,0,0)
u/jellyedwards

Wow!

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rodrigo.siqueira

remix of d/23567 by u/danny@hille.dk

function u(t) {

eval(unescape(escape`󢜽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󥼽󜼲󜌬󢌽󜜸󜜩󞽳󟝉󛭤󨝴󨜻󩭯󬬨󨼮󭽩󩍴󪌽󭼽󪜽󜼲󜌻󪜭󛜻󚝦󫽲󚍈󟜱󞌱󞽈󛜭󞽳󛭳󩝴󚍛󢼽󥌨󦜯󬭼󦌯󬬫󭌪󞜩󚭈󚼱󛽲󛽈󚭓󚍴󚜪󞌸󚭙󛍋󛼶󛌬󜬵󝝝󛍈󚭗󚬴󚽩󚬴󚜩󦜽󢌯󝼰󛍲󟜨󚍘󟝩󛼸󜌭󜬩󚭘󚽙󚭙󚜯󝜰󞽸󛭰󭝴󢝭󨝧󩝄󨝴󨜨󢜬󜌬󜌩`.replace(/u../g,'')))

Aug 16 2021 10:09 PM UTC

}// 139/140

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Sierpinski Pulsar Orbit #sierpinski

u/danny@hille.dk

Super cool - golfed a bit to center the pulsar I=new ImageData(c.width=i=W=320,h=181);for(s=I.data;i--;)for(H=h;H--;s.set([K=T(Y/r|X/r+t*9)*H+1/r/h*S(t*3)*W*H/16,K/6,,255],H*W*4+i*4))Y=1.3-H/70,r=((X=i/80-2)*X+Y*Y)/50;x.putImageData(I,0,0)
u/danny@hille.dk

better version: I=new ImageData(c.width=i=W=320,h=181);for(s=I.data;i--;)for(H=h;H--;s.set([K=T(Y/r|X/r+t*9)*H+1/r/h*(1+S(t*3))*W*3,K/6,,255],H*W*4+i*4))Y=1.3-H/70,r=((X=i/80-2)*X+Y*Y)/50;x.putImageData(I,0,0)
u/384.cz

nice

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