Dweets awesomed by u/ntsutae

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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DataMeta

remix of d/21026 by u/ntsutae

function u(t) {

f=(X,Y,n=5)=>n?f(S(X**3-Y**2),3*S(1+X*Y)+1,n-1):t?Y**4:c.width=1e3
for(X=1e3;X--;x.fillRect(X,t*60,1,1))x.fillStyle=R(g=f(X/2e3,22/t%1),g,g)

Dec 21 2020 5:03 AM UTC

}// 140/140

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ripples on a lake

u/magna

Amazing!

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KilledByAPixel

function u(t) {

for(T[2931]=i=6001;i--;T[i]&!(T[d+=i]|T[d+e]|T[d-e])&&x.fillRect(i%99*20,i/5,21,T[d]=21))d=(Math.random(e=1)*4|0)*2-1,d>1?d=(d-4)*99:e=99

Dec 20 2020 6:09 AM UTC

}// 137/140

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Maze Growth

Show more comments…
u/Xen

nice!
u/rodrigo.siqueira

I was not able to remix because it's a self-destructive code that can run only once.
u/pavel

Use u instead of T to store the data. u does not persist between edits.
u/KilledByAPixel

ah thanks pavel, good call
u/akx

This reminds me of an algorithm I discovered in 2012: https://akx.github.io/spacefill/spacefill.ht…
u/rodrigo.siqueira

It reminds me of the brain's synapse formation process (synaptogenesis) and neural embryogenesis. May be a similar algorithm (but in 3D or in higher dimensions) could be used in the simulation of stochastic neural networks.

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mildlybean

function u(t) {

c.width|=t?onmousedown=e=>{X=e.x*3;Y=e.y*3}:C=U=0;x.fillRect(X,Y,99,99);X+=C;Y+=U;x.fill(x.arc(960,540,99,0,7));C+=(960-X)/99;U+=(540-Y)/99

Dec 19 2020 6:26 PM UTC

}// 139/140

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Click on the canvas to move the square. It keeps its velocity when it moves, which leads to some interesting orbits

u/Xen

very nicely done

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ntsutae

function u(t) {

f=(X,Y,n=5)=>n?f(S(X*X*3-Y*Y*2),3*S(1+X*Y)+1,n-1):Y*Y*9
for(X=2e3;X--;x.fillRect(X,t*60,1,1))x.fillStyle=R(g=f(X/2e3-.5,t/38),g*2,g*g)

Dec 17 2020 10:49 AM UTC

}// 134/140

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u/pavel

Whoa, nice!
u/Xen

love it
u/taupelink

very cool

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pavel

remix of d/21012 by u/pavel

function u(t) {

with(x)for(c.width|=i=710;i--;beginPath(fill(ellipse(40+18*C(a=++t%3.1416),0,w=S(a),!rotate(i*49+w/3),a,0,7))))setTransform(9,0,0,9,960,540)

Dec 17 2020 3:03 AM UTC

}// 140/140

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Torus Study #2

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rodrigo.siqueira

remix of d/20959 by u/jellyedwards

function u(t) {

c.style.filter=`invert(`
for(e=k=c.width|=w=50;k--;x.fillRect(w|x.rotate(k%w+t/4),9,1,1))
x.setTransform(v=2+k%7,0,0,v,k,(k*k+t*v)*w%e-w*8)

Dec 15 2020 6:23 PM UTC

}// 139/140

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Night snow #snowflake

u/Xen

smooth!
u/pavel

Nice. Here's 126, maybe room for snowflake code with(x)for(fillRect(0,0,i=2e3,i);i--;)clearRect(50,9,!setTransform(s=2+i%7,0,0,s,i,i&&(i*i+t*s)*50%2e3-400),i&&!rotate(i+t/4))

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Xen

remix of d/20991 by u/rodrigo.siqueira

function u(t) {

for(c.width=Z=X=68;X--;)for(Y=Z;Y--;)x.fillRect(X,Y,1,(X&Y+t*Z)%Z<X)

Dec 14 2020 8:01 PM UTC

}// 68/140

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Quick play

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rodrigo.siqueira

remix of d/20989 by u/ntsutae

function u(t) {

for(c.width=X=128;X--;)for(Y=34;Y--;)(t*30+X&Y)%32<Y&&x.fillRect(X*2-Y,69-Y*2,2,2)

Dec 13 2020 10:25 PM UTC

}// 82/140

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Sierpinski Triangle Flow #sierpinski

u/magna

The 3398th triangle looks the most interesting

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ntsutae

function u(t) {

for(t*=30,c.width=X=128;X--;)for(Y=72;Y--;)(t+X^t-Y)%41<Y/4&&x.fillRect(X,Y,1,1)

Dec 13 2020 9:38 PM UTC

}// 80/140

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u/magna

Fantastic!

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ntsutae

remix of d/20669 by u/tomxor

function u(t) {

for(c.width&=i=8320;i--;)
x.fillRect(X=i&127,Y=i>>7,
k=S(8*t+X*X-3*Y*Y+19*X*Y)+.5,k)

Nov 18 2020 4:30 PM UTC

}// 84/140

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u/tomxor

#illusion This is messing with my eyes! looks like continuous rotating slices without ever getting beyond 90 degrees
u/joeytwiddle

Travelling without moving
u/ntsutae

I didn't have enough understanding and respect for the work

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