Random dweets | Dwitter

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) {

Y=60*t
for(X=w=h=2e3;X--;){
a=(X-w/4)/(w/4)
b=(Y-h/4)/(h/4)
r=a
g=b
for(i=1e1;i--;)r=(r*r-g*g)+a,g=(2*r*g)+b,r*r+g*g<4||x.fillRect(X,Y,1,1)}

Aug 19 2021 6:29 PM UTC

}// 140/140

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got this while trying to make a mandelbrot set

u/tactical_retard

centered: a=(X-500-w/4)/(w/4)
u/tactical_retard

https://stackoverflow.com/questions/41079139…
u/tactical_retard

replace the comma before the distance check with a semicolon for speed
u/danny@hille.dk

It's the famous hairy balls fractal :-)

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EliteDaMyth

remix of d/22427 by u/deltuhvee

function u(t) {

eval(unescape(escape`𩡯𬠨𭁼𯀨𨐽𨠽𜠵𜀩𛁣𛡷𪑤𭁨🐲𩐳𛁩🐳𩐳𞱩𛐭𞰩𬰽𩐽🠵𜀰𚡓𚁴𚱥𚐫𜑥𜰬𭐽𩐽🠵𜀪𠰨𭀫𩐩𚰱𩐳𛁰👛𬰨𜀩𛁳𚀲𚐬𬰨𝀩𛀱𩐳𛁵𚀰𚐬𭐨𜠩𛁵𚀴𚐬𜐰𜁝𛁸𛡦𪑬𫁒𩑣𭀨𨐽𚁰𦱶👾勺𝀪𣑡𭁨𛡲𨑮𩁯𫐨𚐩𧐫𨐩𛰲𛁢🐨𬁛𭠫𝁝𚱢𚐯𜠬𝰬𝰩`.replace(/u../g,'')))

Apr 12 2021 2:46 PM UTC

}// 135/140

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shorten by 1 char

u/EliteDaMyth

test

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Glastohead

remix of d/3713 by u/bobdunn

function u(t) {

c.width=1920; /* clear the canvas */
  for(i=0;i<64;i++)
  x.fillRect(i*30, 400 + C(4*t+(i*3))*100, 27*T(t), 200)

Dec 26 2017 11:39 PM UTC

}// 113/140

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Agnes

function u(t) {

n=T(1/S(t));x.fillRect(i=0,0,w=2e3,w);for(i;i<w;i++){d=i/w;x.fillStyle=R(t,t,255*d+t,1-d);x.fillRect(w*(1+n*C(d+t))/2,540*(1+n*S(d+t)),d,d)}

Jan 6 2018 6:08 PM UTC

}// 140/140

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corruptio

remix of d/5769 by u/ETHproductions

function u(t) {

q=b=>(Math.acos(v=-v)/.8+b)%8/(Y/Z+2)*5&1
for(c.width=256,Z=X=64;--X>-Z;)for(Y=Z*2;--Y;x.fillRect(X+Z,Y,1,q(t)+q(t+4)/2))v=X/(Z*Y*2-Y*Y)**.5

Jan 9 2018 9:28 AM UTC

}// 140/140

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with a backside

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mildlybean

function u(t) {

for(i=0;999>i++;){h=Math.random(),w=Math.random(),e=h*6-t;x.fillStyle=R(S(e)*(q=255),S(e-2)*q,S(e-4)*q);x.fillRect(w*1920,h*999,9,9*S(w*9))}

Aug 18 2019 9:48 PM UTC

}// 140/140

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I ran out of characters. But this is cool... i guess

u/13thptr

you can remove the brackets of the for loop, doing for(i=999;i--;) is 1 byte shorter over your approach and 1920 can be approximated with 2e3
u/mildlybean

thanks, ill keep that in mind for future dweets

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iverjo

remix of d/894 by u/iverjo

function u(t) {

for(j=1080;j--;x.fillRect(T=frame,j,1,S(k/9),x.fillStyle=R(k,j,T)))for(a=b=0,k=35;k--&&a*a+b*b<4;a=c)c=a*a-b*b+T/540-2,b=2*a*b+j/540-1

Mar 10 2018 12:28 PM UTC

}// 134/140

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Golfed version of the color mandelbrot

u/DirtyDan

I'm a sucker for Mandelbrot dweets. Bravo!
u/iverjo

#mandelbrot
u/iverjo

#fractal
u/iverjo

#slow_render
u/Qwitter

escape time !

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Xen

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁴🱩🐳𞡦𪑬𫁒𩑣𭀨𜀬𜀬𫠽𜡥𜰬𫠩𞱩𛐭𞱦𪑬𫀨𨑲𨰨𞀹𞐬𜐱𞐹𛀵𜠹𚱩𚠳𜀬𪐫𜐬𜐫𪐪𜰩𚐬𨱬𩑡𬡒𩑣𭀨𫠪𥀨𭀪👴𚠹𚐥𫠬𭀪𜐱𛰲𞀬𜐬𜠩𚑢𩑧𪑮𤁡𭁨𚁦𪑬𫁓𭁹𫁥👒𚁚👩𚠸𝐬𦠬𦠩𚐬𨑲𨰨𞀹𞐬𝐹𞐬𜰲𞐫𪐪𜰰𛁩𛁩🀱🰷𞠹𚱩𚐻`.replace(/u../g,'')))

May 9 2025 1:12 PM UTC

}// 137/140

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𝓢𝓹𝓪𝓬𝓮𝓶𝓪𝓷

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Tekmap

remix of d/23817 by u/pavel

function u(t) {

for(i=420;r=--i>>2;i&4||x.beginPath(x.fill()))x.fillStyle=`hsl(177,42%,${90-3*r}%`,x.arc(960,580,24*r,a=(i*2-.5+(~r%2|1)*C(t-r/7))/.9549,a)

Sep 9 2021 1:51 PM UTC

}// 139/140

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firegodjr

function u(t) {

c.width=200;
for(i=100;i-->0;)x.lineTo(S(t+i)*100*C(i*7+t)+100,5-Math.abs(C(t+i))*100+100)
x.fill()

Jun 18 2018 8:08 PM UTC

}// 99/140

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Wobbly

u/joeytwiddle

I see a crow reflected in water
u/Galaxtone

I see nothing.