Dweets awesomed by u/Irratix

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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Current theme challenge: #Opposites

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KilledByAPixel

remix of d/16762 by u/KilledByAPixel

function u(t) {

X=960,Y=540
with(x)for(beginPath(stroke()),lineWidth=4,strokeStyle=`hsl(${-t*99},99%,50%,.3`,i=1e4;i--;)lineTo(X+=S(t+=X*Y)*9,Y+=C(t)*9)

Nov 30 2019 3:06 AM UTC

}// 136/140

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ant trails

u/KilledByAPixel

🐜 #ant
u/DataMeta

Super neat. #colors
u/Xen

love it!
u/katkip

sexy
u/katkip

#art

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rnbw

function u(t) {

for(c.width^=i=0;i++<210;)for(j=0;j++<7;x.fillStyle=`#f`+j*15)x.fillRect(i*9,540-S(a=t-i/80*C(t+i/69)+j*.89)*230,9,Math.max(210*S(a-1.1),0))

Nov 25 2019 7:18 PM UTC

}// 140/140

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an attempt at something like a twister

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u/Xen

mmmmm tasty!
u/tomxor

my exact thoughts #marshmallow
u/katkip

twisted icecream
u/Xen

#flump
u/joeytwiddle

That's a very juicy #twister!
u/cyhawk

I teach 9-year-olds programming and used a tidied up version of this to show them how to figure out how something works. They loved it! Thanks! I've added a bit of gap between the strands to make it easier to understand, and I think it looks good. Like Math.max(180*S(a-1.2),0).
u/rnbw

wow, i would have never thought that my recreational programming would be used for educational purposes. glad i was able to help those kids out on their journeys!
u/danny@hille.dk

Just saw this, nice code man! Save 11 b like this: for(c.width=i=300;i--;)for(j=8;j--;x.fillStyle=#f+j*15)x.fillRect(i,99-S(a=t-i/80*C(t+i/99)+j*.9)*40,1,Math.max(40*S(a-1.1),0))

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rodrigo.siqueira

remix of d/16023 by u/rodrigo.siqueira

function u(t) {

for(c.width=a=400;a--;)x.arc(99,99,(2+S(a*2+t)+a*t%500),1.61,7.8),x.globalAlpha=.3,x.fillRect(a,188+20*S(a)*C(a/5)+C(a/2)*3,5,58);x.stroke()

Nov 24 2019 8:56 PM UTC

}// 140/140

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Kraftwerk's Antenna with city skyline. 📡

u/DataMeta

📻📺📶
u/joeytwiddle

#scene #tribute

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Odog8

function u(t) {

c.width=c.width
x.fillRect(t*200,t*200,Math.abs(200*C(t*20)),Math.abs(200*S(t*20)))

Nov 21 2019 4:30 PM UTC

}// 83/140

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u/joeytwiddle

Me neither 😅

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pavel

remix of d/16679 by u/DataMeta

function u(t) {

t||x.fillRect(0,0,2e3,2e3)
for(n=8;n--;x.clearRect(960+i*C(n?i:c-e),540-i*S(n?i:c+e),s=n/2||6,s))
i=320+781*Math.random()*!!n,c=t%11,e=c>6.3

Nov 21 2019 2:51 AM UTC

}// 140/140

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#planet

u/pavel

Small remix with a background that doesn't draw over the planet
u/rnbw

"n?i:c-e" indeed
u/DataMeta

Cool! :)
u/Xen

oooooooo nice

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tactical_retard

function u(t) {

c.width=1920;x.font="400pt a";x.fillText("🔫",1350,875);for(i=250;i--;x.strokeStyle=R(0,0,255,t))x.arc(C(t*i)*1350,555,75,i,C(i));x.stroke()

Nov 20 2019 2:07 PM UTC

}// 139/140

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water gun

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DataMeta

function u(t) {

if(t<55/7)x.fillRect(960-320*C(t-(h=t>22/7?1:0)),540+320*S(h+t),8,8)

Nov 18 2019 11:39 PM UTC

}// 68/140

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ringed #planet

u/DataMeta

with starry backdrop: for(i=2e3;i--;)x.fillRect(i,t*99,r=4.6*Math.random(),r);if(t<121/7) x.clearRect(960+320*C(t-(h=t>88/7?1:0)),540-320*S(h+t),6,6)
u/katkip

awesome!

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f8f82804

remix of d/16668 by u/joeytwiddle

function u(t) {

c.width=32;for(i=512;T[7]=i--/99;x.fillRect(i>>4,Y,1,1))for(T[l=6]=(Y=i&15)/7;l--;x.globalAlpha=T[l]=S(v))for(v=n=l;n++<7;v+=S(t*l-n)*T[n]);

Nov 18 2019 9:15 PM UTC

}// 140/140

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This #neural network stays ordered but teeters on the edge of chaos -- #dweetdream

u/Xen

nice
u/joeytwiddle

The loopbuster is being a pain. Your golfing helps reduce it!

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joeytwiddle

function u(t) {

for(c.width=X=55;X--;)for(Y=34;T[7]=X/3,T[6]=Y/3,Y--;)for(l=6;x.fillRect(X,Y,s=T[0],s),l--;T[l]=S(v))for(v=n=l;n++<7;)v+=t*(l+n)/7%1*T[n]

Nov 18 2019 1:42 PM UTC

}// 137/140

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Dweet dream: a sort of 7-layer neural network

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u/joeytwiddle

A poor man's zzArt. A redux of https://joeytwiddle.github.io/nn-images/
u/joeytwiddle

Node values are held in T, with T[6,7] being the input nodes. Each "layer" has just one output T[l] formed from all the previous nodes T[l+1..7]
u/joeytwiddle

Instead of randomly generating and storing weights, we use t*(7*l+n)%1 Other weights you can try: v+=S(t*l+n)*T[n] or v+=S(l+t*n)*T[n]
u/DataMeta

Beautiful 👏
u/f8f82804

#dweetdream
u/KilledByAPixel

👍

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pavel

function u(t) {

a=Math.abs;x.font='97px"';x[f='fillText']('dwitter.net##.dweet-wrapper:has(:contains(eval))',0,540);x[f]('😂',450*a(t%8-4),1080-990*a(C(t)))

Nov 15 2019 1:50 AM UTC

}// 139/140

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uBlock Origin custom filter to hide compressed dweets

u/pavel

As a bonus it hides itself because you no longer need it... heh
u/f8f82804

d/16645
u/joeytwiddle

To avoid (some) false-positives, you could get slightly stricter with e.g. :contains(eval):contains(unescape)
u/joeytwiddle

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