Top dweets by u/tomxor

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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tomxor

function u(t) {

eval(unescape(escape`瑼簨挮潵瑥版呍䰽✾㱩湰畴⁩搽漾✬昽湥眠䙬潡琶㑁牲慹⠱⤬椽湥眠䉩杉湴㘴䅲牡礨昮扵晦敲⤬漮潮扬畲㵟㴾学嬰崽漮癡汵攬漮癡汵攽楛そ⹴潓瑲楮木㈩⹰慤却慲琨㘴ⰰ⤮牥灬慣攨⼨㼼㵞⹻ㄲ紩⽧Ⱗ‧⥝⤻`.replace(/u(..)/g,"$1%")))

Mar 7 2019 2:14 AM UTC

}// 138/140

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Float64 Encoder #application

u/tomxor

Enter a number and click away to get the underlying binary64 IEEE754 encoding with a space separating the exponent and significand.
u/tomxor

This uses the new proposed BigInt64Array typed array view to access the binary encoding, so it currently only works in latest chrome.

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tomxor

remix of d/18062 by u/tomxor

function u(t) {

for(a=t?b:[1],b=S,S=[],x.drawImage(c,0,1),p=1920;p--;x.fillStyle=S[p]?R():'tan',x.fillRect(p,0,1,1))
A=a[p],B=b[p],S[p]=A^B^C,C=(A^B)&C|A&B

Mar 25 2020 1:57 PM UTC

}// 139/140

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1920bit #Fibonacci sequence using 1-bit serial adder

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tomxor

remix of d/18050 by u/tomxor

function u(t) {

x.fillRect(0,0,c.width=138,78);for(i=48;i--;x.fillText([...'🦙🐐🦒'][i>>4],(X&128?~X:X)&127,40+S(Y)*20))X=i*t*4,Y=i+t*4

Mar 23 2020 8:09 PM UTC

}// 116/140

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llamawave

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tomxor

function u(t) {

I=x.getImageData(0,0,1920,1080);D=I.data
for(C=0xFF,i=0;p=i*4+3,C;i++)D[p]^=C,C^=D[p]
x.putImageData(I,0,0)

Jan 27 2020 10:11 PM UTC

}// 107/140

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Bruteforce 1bit #castle

u/tomxor

(fullscreen and look top left to see progress) ... although it will take 2^(1920*1080) / (60*86400*365) = x10^624206 years to permute all possible values for 2073600 bits... that is roughly 624 times the estimated lifespan of the universe based on bigbang to heat-death.
u/Xen

can we have quantum dweet on this please, i've run out of food already
u/tomxor

:P

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tomxor

function u(t) {

for(x=96,i=O='';u='񾈗򔼐򪄊'.charCodeAt(i/2)>>i++%2*5&31;O+=String.fromCharCode(x))x+=u-16;throw O

Sep 22 2019 2:00 AM UTC

}// 93/140

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Limited Range Delta Compression - Fit 200 chars! with extreme limitations :D

u/tomxor

Each char is encoded as 5 bits (fitting 4 into each 20bit surrogate pair), representing the numeric difference between the previous and current ASCII codepoint. Since 5 bits only provides 32 values this is limited to shifting -16 to +15 codepoints each char, this makes it rather challenging to write code with since you can only reach a max of 1/3 of the useful ASCII codepoints at a time.
u/tomxor

Here's the encoder if you are looking for a very contrived adventure: f=(s,x=96,b=16,o='')=>{for(p=0,i=0;i<s.length;){x+=d=s.charCodeAt(i)-x;p|=d+b<<((i%4^2)*5);++i%4?0:p=o+=String.fromCodePoint(p+0x10000)}return o;}; f('helloooworld')
u/tomxor

... don't try this, seriously, you can't even get a for loop started
u/tomxor

#compressor

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tomxor

remix of d/15756 by u/KilledByAPixel

function u(t) {

t%7|!u?0:u=O+=String.fromCharCode(u);u|=(1&'􉬭󤗘􇔴󹩨􇷒󛻭󭅪𞻯򃆚񼵩󗡴󡑠񫆥򥗋񺺊򊅊񃐘񨰵󑥚񷃕󖆒𺪞𤧞󶜴󩩓󷧙󾖁񍍧򚎴󄺊󀐾򂪹󥅠𒚳󮇋񞚅󩉪򸫴󸢩𑐀'.charCodeAt(t/10)>>t%10)<<t++%7;throw O}{O=''

Sep 21 2019 2:17 PM UTC

}// 130/140

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Saved 9 more... although it decodes at 1 bit per second !!

u/tomxor

Decoder now = 90 chars, leaving 50*20/7 = 142 chars of content yay! +2 chars
u/tomxor

To break even with 184 chars, 184*7/20 = 67 20bit chars, leaving 73 for decoder, not sure this is possible :/
u/tomxor

... I guess 1bit/s is just not good enough for the internet of the 21st century XD

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tomxor

remix of d/15730 by u/KilledByAPixel

function u(t) {

_='􉬭󤗘􇔴󹩨􇷒󛻭󭅪𞻯򃆚񼵩󗡴󡑠񫆥򥗋񺺊򊅊񃐘񨰴󑥘򓒱𖖃𺞅򧔹񼳶󹙹򧙻񕃍򶍊𚐀'
eval(t?O:unescape(escape`景爨嘽䤽伽✧㭉㰱攳㭉┷⬡噼簨伫㵓瑲楮朮晲潭䍨慲䍯摥⡖⤬嘽〩⥖簽⡟⹣桡牃潤敁琨䤯㄰⤾㹉┱〦ㄩ㰼䤫⬥㜻`.replace(/u(..)/g,"$1%")))

Sep 20 2019 12:44 AM UTC

}// 135/140

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Inception Compression - d/15730 decoder inside d/9207 decoder

u/tomxor

Just for the kicks, only actually saved 4 bytes. Still way off 184 for actual content

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tomxor

remix of d/15367 by u/tomxor

function u(t) {

eval(unescape(escape`瑼籸⹦楬汒散琨愽〬戽〬挮睩摴株㴴Ᵽ⹨敩杨琪㴴⤻砮晩汬却祬攽✣晦昧㭦潲⡩㴱攵㭩ⴭ㭸⹦楬汒散琨愪猭㘴〬截猫猬ㄬ⸰㌩⥲㴰簴⩍慴栮牡湤潭⡳㴲㔶〩ⱡ⬽⸳⨨爭愫截匨愪㌮ㄴ⤩Ɫ⬽⸳⨨〭愪戫䌨愪㌮ㄴ⤩`.replace(/u(..)/g,"$1%")))

Aug 10 2019 11:43 AM UTC

}// 140/140

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Chaos Photographer, Pic 2 - HQ 4K Render

u/tomxor

Takes ~4min @6fps, right-click save-image for better downsampling quality, FireFox gives smoother quantization: https://imgur.com/gallery/BnWGfDB

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