Dweets awesomed by u/nashcat

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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rodrigo.siqueira

remix of d/18852 by u/rodrigo.siqueira

function u(t) {

for(let i=2e3,f=(X,Y,n=9)=>Y?f(X*X-Y*Y-.9,2*X*Y,n+.2):x.fillStyle=`hsl(${n},80%,${S(n+7)*99}%`;i--;x.fillRect(i,t*90,1,999))f(i/490-2,1-t/6)

May 25 2020 3:06 AM UTC

}// 140/140

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Symmetry #Julia set for c = -0.9 + 0i, with colors inside the lake area.

u/Xen

worthy of wallpaper

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tomxor

remix of d/15553 by u/tomxor

function u(t) {

for(c.width=128,i=576;i-=1/16;x.fillRect(16*X,16*Y,Z,Z))
X=i%8,Y=i/128,
Z=1+C(5*S(Y+C(X*3))+5*S(X+S(Y*3))+t*4)**3/3

Aug 28 2019 3:34 PM UTC

}// 115/140

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#lava

Show more comments…
u/aleamb

awesome!
u/katkip

i thought it's perlin noise. gj
u/tomxor

Never heard of it :) time for a quote: "Absolute Ignorance is the artificer [...] in order to make a perfect and beautiful machine it is not necessary to know how to make it" - Robert Beverley MacKenzie, 1868 ... gona keep my monkey fingers typing, maybe I will learn something.
u/taupelink

excellent
u/username

so what did you use to implement this noise?
u/DataMeta

115 bytes, clearly :)
u/KilledByAPixel

👍

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tomxor

remix of d/15534 by u/tomxor

function u(t) {

Z=_=>C(3*S(Y+C(X*3))+3*S(X+S(Y*3))+t*4)**3/6
for(c.width=i=1024;i-=1/16;x.fillRect(48*(X*2+Y+11),48*(X/2-Y+z),1,5))z=6-Z(X=i%8-4,Y=i/128-4)

Aug 28 2019 11:57 AM UTC

}// 139/140

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#lava

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rodrigo.siqueira

remix of d/15526 by u/mildlybean

function u(t) {

Z=_=>S((Y*Y+X*X)*S(t))
for(c.width=i=1024;i-=1/8;x.fillRect(48*(X*2+Y*C(t)+11),48*(S(t)*X/2-Y*S(t)+z),1,5))z=6-Z(X=i%8-4,Y=i/128-4)

Aug 26 2019 11:18 PM UTC

}// 131/140

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Rotating sombrero. Remix from @tomxor https://www.dwitter.net/d/15530 , faster, smaller. Now the surface also rotates.

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katkip

function u(t) {

tg='cGFzcw=='
alg=btoa
t||(q=0,z=1);for(i=4999;i--;)
if(z==1&&alg((C=[...q.toString(36)].reverse().join``))==tg){z=0}else{q++}
throw C;

Jun 16 2019 3:54 PM UTC

}// 135/140

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Real password cracking tool! Change alg to your encoding algorithm and tg to your target and #waitforit to crack it! **EDUCATIONAL PURPOSES ONLY**

u/katkip

Takes 20 seconds to crack this one
u/katkip

Uses just 0->9 digits and the lowercase letters.

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katkip

function u(t) {

c.width*=1;if(!t){z=[];for(i=99;i--;)for(j=99;j--;)z.push({x:i,y:j})}
for(q of z)x.fillRect(500+(q.x+=C(q.y/9))*9,100+(q.y+=C(q.x/9))*9,6,6)

Jun 15 2019 10:11 AM UTC

}// 140/140

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Did someone say "chaos"? Here's something that rotates fluid-like

u/katkip

#chaos
u/KilledByAPixel

i like this one

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joeytwiddle

remix of d/9674 by u/f8f82804

function u(t) {

with(x)for(i=c.width^=0;beginPath(),i--;fill())arc(960+(i*960-i*i)**.5*S(a=t-i),48+i,9*(C(a)*S(i/306))**.3,0,7)

Jun 14 2019 2:15 PM UTC

}// 111/140

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Just a little remix

u/katkip

#d3
u/joeytwiddle

No perspective, but proper flattening: with(x)for(i=c.width^=0;i--;fill())beginPath(),C(a=t-i)>0&&ellipse(960+(i*960-i*i)**.5*S(a),48+i,15*C(a),15*S(i/306),0,0,7)
u/joeytwiddle

Spirals: with(x)for(i=c.width^=0;i--;fill())beginPath(),C(a=(t|0)*i-C(t))>0&&ellipse(960+(i*960-i*i)**.5*S(a),48+i,15*C(a),15*S(i/306),0,0,7)

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WasifBoomz

function u(t) {

a=Math.random()*1920
b=Math.random()*1080
c=Math.random()*500
d=Math.random()*500
x.fillRect(a,b,c,d)
x.fillStyle=R(d/2,c/2,a/8)

Feb 26 2019 12:53 PM UTC

}// 128/140

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Abstract Art!

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WasifBoomz

function u(t) {

a=Math.random()*500
x.fillRect(a*3.9,a*2.1,a,a) 
x.fillStyle=R(a/2,a/2,a/2)
x.strokeRect(a*3.9,a*2.1,a*5,a*5) 
x.strokeStyle=R(a/3,a/2,a/3)

Feb 25 2019 12:54 PM UTC

}// 139/140

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Trav

function u(t) {

c.width=1920;x.fillStyle='darkblue';for(j=0;j<18;j++)for(i=0;i<200;i++)x.fillRect(-20+i*10+S(t*2+j*2)*30,40+S(i+t*3)*15+(j)*60,13,13)

Feb 24 2019 6:38 PM UTC

}// 133/140

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Scatter

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