Top dweets of all time

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: #Food

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pavel

function u(t) {

for(c.width|=i=99;S[u[t]=t]=x[t]=i--;x.fillRect(960+(u[i]+=S[i]-=u[i]/d),540+(x[i]+=C[i]-=x[i]/d),C[t++]=9,9))d=(u[i]**2+x[i]**2)**1.5/7e3

Feb 28 2019 5:17 AM UTC

}// 138/140

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#physics #orbit #orbits

u/pavel

Funky start due to lack of chars but quickly settles. Imagine a black hole in the middle.

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tomxor

remix of d/12492 by u/tomxor

function u(t) {

for(c.width=E=X=N=64;X--;)for(Y=N;Y--;x.fillRect(X,Y,K=eval(R)/N%1,K))E+=' '+'XXYYtt-*%&~^'[0|12*Math.random()];eval(E=E.slice(-8-t%16));R=E

Feb 26 2019 12:59 AM UTC

}// 140/140

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Algebraic Monkeys #fuzzing #waitforit

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u/tomxor

Searching for f(x,y,t) this time. If you have more patience then add operators, parens and increase string length in the slice.
u/Xen

c.width=X=E=N=64 lol
u/tomxor

heh, i missed that opportunity
u/DataMeta

Clever concept, like some old tv grasping at transmissions.
u/DataMeta

Haha, Xen
u/tomxor

Nice analogy :) like a TV into the computable universe, infinite channel! (sorta)
u/21medals

Why the space in between each character of E?
u/tomxor

Because -- and ++ are assignment operators, and I cannot allow those on loops variables X and Y. It's basically cheaper in chars to pad with spaces than test for this with a regex.

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21medals

remix of d/12403 by u/tomxor

function u(t) {

try{eval(a)}catch(e){for(a="",i=40;i--;)a+="\"abcdefghijklmnopqrstuICAWDMPRST`%~?:.,()!+-/*=;1234567890[]{}'< >"[Math.random()*66|0]}throw a

Feb 18 2019 12:09 PM UTC

}// 140/140

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Trying to eval a random string, pauses when its compilable

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u/21medals

Most of them are just one big comment or one long string though
u/katkip

nice!
u/21medals

99% copied from tomxor's dweet though!
u/tomxor

eWuW='.,gttb/PIdd ]I]8fte6?Abnu80<~pI~u' It's still quite impressive that it can find any... I guess reducing the length to 40 substantially increased the probability. The next logical progression would seem to be to let it accumulate shorter evaluable strings and compose a larger one from them.
u/tomxor

If you can also fit in the requirement to reduce entropy then you have the seeds of life inside a dweet :D
u/katkip

yeah
u/katkip

it can be faster with another for
u/tomxor

I tried that but couldn't fit it, so I did the opposite - reduce the search space - I made one that constructs expressions for f(t) and does the canvas bit for it so it actually draws: d/12492

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katkip

remix of d/12347 by u/katkip

function u(t) {

c.width*=1;t||(a=b=5);for(i=999;i--;)a+=S(b+C(a+i/9999)),b+=C(a+C(b+t*i)),x.fillRect(a*590-1800,b*290-300,9,9)

Feb 14 2019 6:13 PM UTC

}// 110/140

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Chaotic #attractor in motion #math (quarc in string theory)

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pavel

function u(t) {

for(j=t?1e3:a=b=0;j--;x.fillRect(960+450*a,540+450*b,1,1))s=Math.random()<.5?-1:1,A=(Math.hypot(a,++b)+a)/2,b=(b<0?-s:s)*(A-a)**.5,a=s*A**.5

Feb 13 2019 9:09 PM UTC

}// 140/140

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IFS #julia attractor for c=i. Play with adding different constants to a and b in the Math.hypot call

u/pavel

a+=.123,b+=.745 is called Douady's rabbit fractal
u/katkip

How! Amazing
u/13thptr

#fractal

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katkip

function u(t) {

f=(X,Y,S)=>{if(S>10)x.beginPath(),x.arc(X,Y,S,3.2,6.2),x.stroke(),f(X+S,Y+S/2,S/2),f(X-S,Y+S/2,S/2)}
x.lineWidth=9;f(960,540,450)

Feb 5 2019 8:04 AM UTC

}// 129/140

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#recursive #recursion

u/cantelope

awesome!
u/katkip

thx

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metamero

remix of d/11510 by u/metamero

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼👮🐱𜠸𞱍👴🱍𛡭𨑰𚀨𭠬𪰩🐾𦱮𛀱𛁮𛐱𛁮𚰱𧐮𫑡𬀨𩀽🡶𚰽𣑛𚁫𚱤𚱹𚐥𮑝𚱍𦰨𪰭𩀫𮐩𙑹𧐬𭠦𙡸𛡦𪑬𫁒𩑣𭀨𜐵𚠨𪰥𫠩𛀱𝐪𚁫𛱮𯀰𚐬𞐬𞐩𚐦𙡶𧠴🱶🐽𜰺𣑛𪱝𚐺𦰮𛠮𠑲𬡡𮐨𮐽𝰲𚡮𚑝𛡭𨑰𚁶🐾𣑡𭁨𛡲𨑮𩁯𫐨𫱮𨱬𪑣𪰽𬡥𬱥𭀩🠮𝐩`.replace(/u../g,'')))

Jan 17 2019 9:50 PM UTC

}// 140/140

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beautiful rendering #gameoflife : reset on click : Math.random initialization : toroidal space (wraparound)

u/metamero

#compressed using the NEW tool d/11852 support!
u/katkip

#massive

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pavel

remix of d/11463 by u/cantelope

function u(t) {

with(x)for(c.width|=i=6,scale(9,9),q=C(4*t);i--;stroke(),fill())moveTo(X=64+17*i,0),arc(X-60*S(a=(q>0?i:i-5)?0:q),60*C(a),8,a-Math.PI/2,9)

Dec 18 2018 12:32 AM UTC

}// 138/140

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u/cantelope

ah! of course. i knew there had to be an easier way ;P
u/katkip

Haha nice
u/iverjo

#newtonscradle
u/pavel

For a more realistic look replace (q>0?i:i-5)?0:q with (q>0?i:i-5)?q/50:q

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katkip

function u(t) {

c.width*=1;for(q=99;q>0;q-=.01)x.fillRect(960+C(q*t)*q*q+T(q*C(t)),540+S(q*t)*q*q+T(q+t),q,q)

Dec 17 2018 6:26 AM UTC

}// 93/140

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Distorted spiral

u/cantelope

amazing! and only 93b!

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rnbw

function u(t) {

x.rotate(2.0944);for(i=0;i++<99;){x.fillStyle=R(m=~~(S(i*12+t*6)*2)*1e3,m/12,0,.02);x.fillRect(-2e3,i*40-2e3,6e3,240)}

Dec 5 2018 7:08 PM UTC

}// 118/140

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triangles and whatnot

u/magna

Neat!