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

remix of d/22986 by u/tomxor

function u(t) {

for(c.width=p=w=64;a=R*S(t),b=R*C(t),p<3e3;u=p/32%2-1)C(Y=R*p/2e3-R/2)>T(S(u*b-a)*S(Y+t+a)*S(u*a+b))&R<8?R+=.1:x.fillRect(p%w,p++/w,R/9,R=1)

Jun 4 2021 7:31 PM UTC

}// 140/140

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Indecisive Paint

u/tomxor

#raymarching
u/KilledByAPixel

Nice, looks alive!

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tomxor

remix of d/21131 by u/tomxor

function u(t) {

for(c.width=p=w=64;a=R*S(t),b=R*C(t),p<3e3;u=p/32%2-1)C(Y=R*p/2e3-R/2)>T(S(u*b-a)*S(Y+t*3)*S(u*a+b))&R<8?R+=.1:x.fillRect(p%w,p++/w,R/9,R=1)

Jun 4 2021 12:27 PM UTC

}// 140/140

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3D #raymarching version of "This Thing"

u/tomxor

We have to raymarch ALL OF THE THINGS now!

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tomxor

remix of d/17533 by u/tomxor

function u(t) {

u&=R=R|0?0:c.width=w=256
for(T=S,S=C,C=T,i=7e4;j=--i/w|i%w*w;u+=~S[i+5]-~S[i-6])R?x.fillRect(i%w,j%w,1,C[j]=u>33&u<59?u<46|C[j]:j&!t):C[j]=u

Jun 2 2021 3:22 PM UTC

}// 140/140

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Larger #LargerThanLife #Automata Bugs Rule v2

u/tomxor

4x the pixels 2x the speed
u/davidsover

...of Fallout 4
u/Xen

noice
u/donbright

!!!

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tomxor

remix of d/22883 by u/tomxor

function u(t) {

eval(unescape(escape`󭌿󨼮󭽩󩍴󪌽󭼽󝬴󞭘󟝙󟝚󟝒󟜵󞽦󫽲󚍡󟝓󚍒󚜬󨬽󠼨󤬩󛍰󟜳󩜳󞽰󛜭󞽘󛜽󪼪󨜬󦬭󟝫󚭢󛍙󚼽󪼪󠬬󤬭󟝫󚭁󛍸󛭦󪝬󫍒󩝣󭌨󬌥󭼬󬌯󭼬󜜬󜬭󝌯󩌩󚝦󫽲󚍁󟝰󙝷󛼳󜬭󜜬󠬽󬌯󜝥󜼬󩌽󜜻󚍘󚽤󚭁󚭢󛝤󚭡󧭙󚽤󚭂󧭚󛝤󚭁󚭡󛝤󚭢󚜥󜜵󟬱󞽤󚼽󛬱󚝫󟜨󜜭󜼯󩌯󩌩󛼲󩜴`.replace(/u../g,'')))

May 31 2021 3:37 PM UTC

}// 140/140

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Leisurely Descending a #minecraft cave v2

u/tomxor

Less of a maniac miner... now that dwitter perf is better.
u/tomxor

#raymarching

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tomxor

remix of d/20405 by u/tomxor

function u(t) {

eval(unescape(escape`𭀿𨰮𭱩𩁴𪀽𭰽𝠴𞡘👙👚👒🐵𞱦𫱲𚁡👓𚁒𚐬𨠽𠰨𤠩𛁰🐳𩐳𞱰𛐭𞱘𛐽𪰪𨐬𦠭👫𚡢𛁙𚰽𪰪𠠬𤠭👫𚡁𛁸𛡦𪑬𫁒𩑣𭀨𬀥𭰬𬀯𭰬𜐬𜠭𝀯𩀩𚑦𫱲𚁁👰𙑷𛰳𜠭𜐬𠠽𬀯𜑥𜰬𩀽𜐻𚁘𚱤𚡁𚡢𛑤𚡡𧡙𚱤𚡂𧡚𛑤𚡁𚡡𛑤𚡢𚐥𜐵🠱𞱤𚰽𛠱𚑫🐱𩐭𝀭𜱥𛐴𛱤𛱤`.replace(/u../g,'')))

May 28 2021 12:53 AM UTC

}// 140/140

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Descending a #minecraft cave

Show more comments…
u/tomxor

Significantly faster in Firefox! #raymarching
u/tomxor

Seriously, it's like 30x faster, this is going to be my test case for fixing Dwitter perf
u/KilledByAPixel

Wow! 🤯 Runs great in capjs ;) Though I did need to disable loop protect to get the full render.
u/DataMeta

this is insane
u/Xen

love it!
u/yonatan

you've outdone yourself!
u/13thptr

Speechless.
u/rep_movsd

I cant even!
u/rodrigo.siqueira

As @aemkei said: "This piece is insane!" https://twitter.com/aemkei/status/1398235717…
u/DaSpider

Wait. What?
u/tomxor

Woooo perf fixes are merged! :D Big shout out to u/LionLeaf and u/KilledByAPixel for working through this with me. Keep an eye out for issues and let us know on discord if you spot any regressions.
u/jellyedwards

That's incredible!
u/donbright

:o

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tomxor

remix of d/22746 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪀦👩🐴𝠰𞀻𪐭𛐻嬈𙠳🱸𛡬𪑮𩑔𫰨𦀫👲𚡃𚁡👩𙠱🱃𚁮👩𚠴𚱴𚠸𚐭𚀴𯁩𛰸𙠱𚐺𪐦𜡼𯁃𚁮𛐱𚐫𚀱𯁩𛰴𙠲𚐩𛁙𚰽𬠪𤰨𨐩𚐺𮀮𫑯𭡥𥁯𚁘🐹𞐪𭀫𪰥𜰲𚡴𚱫𙐹𝰪𪰦𝐱𜐬𦐽𦀯𝀫𪰯𜠩𚑫👩🠾𝀬𬠽𜰫𚁩𙠲🱩𛰲𙠴𞡩𛰸𙠱𚐻𮀮𬱴𬡯𪱥𚀩`.replace(/u../g,'')))

May 15 2021 12:26 AM UTC

}// 139/140

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🏃‍♀️🏃🏃🏿‍♂️🏃🏻‍♀️🏃🏽‍♂️🏁 Marathon 🏁🏃‍♀️🏃🏃🏿‍♂️🏃🏻‍♀️🏃🏽‍♂️

u/tomxor

This was a fun golf/optimise. Shout out to u/KilledByAPixel for the awesome and original idea! I predict many remixes to come
u/KilledByAPixel

Wow, amazing! 🏆
u/Toby

Incedible!

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tomxor

remix of d/21705 by u/tomxor

function u(t) {

b='渀渀漀漀澀柀柠揸懿惿怿怏'
eval(unescape(escape`𩡯𬠨𪐽𜀻𪐼𜡥𜰻𤠫👔𚁙𛰹𚱴𚠳𚐩𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀤𮱩𚠱𜠰𯐠𞐹𙐤𮱢𛡣𪁡𬡃𫱤𩑁𭀨𦐽𪐯𞐰𚐾🠨𤠼𜐵🱒𞠭𝀭𤠩𙠱🰴𝀺𞁽𙑠𛁒👩𙐹𜀯𜰬𮀮𩡩𫁬𤡥𨱴𚁒𚠶𛁙𚠶𛁩🰱𛠵𞡣𛡷𪑤𭁨🐱𞀰𛁩𚰫🰵𞠹𞐩`.replace(/u../g,'')))

May 14 2021 6:27 PM UTC

}// 140/140

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Broken Video Game #retro #crt #atari

u/Xen

nicely done!
u/magna

YES!
u/DataMeta

wowie
u/aleamb

great!

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tomxor

remix of d/22034 by u/ciaccodavide

function u(t) {

setStatsVisibility(s=stats.dom.firstChild)
s.style='width:94vw'
t&34^2||s.getContext`2d`.fillRect(76,32,1,9)

Mar 20 2021 12:54 PM UTC

}// 108/140

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#default inside #stats smolr

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tomxor

remix of d/21820 by u/erin

function u(t) {

for(c.width=w=128,Z=i=1e4;i--;x.fillStyle=R(0,143-Y+Z*9-Z/9*Y,175-Y,S(i*i)))x.fillRect(X=i%w,Y=i/w-Z,Z=S(Y/9+S(X/30)+t*2)**2*4+Y/14,2)

Mar 6 2021 2:54 PM UTC

}// 134/140

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#ocean #waves 2

Show more comments…
u/tomxor

It's crazy how long this dweet chain is!
u/erin

holy shit!!
u/erin

this is amazing!
u/tomxor

Thanks man :) I like the idea
u/erin

i'm the type of person to come up with stuff by just messing with values.. so i kinda found myself making something similar to waves in a ocean and then i further explored the idea
u/erin

maybe this is why my dweets are so remixable.. they're fun to insert functions into :)
u/rep_movsd

#underrated

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tomxor

remix of d/21783 by u/tomxor

function u(t) {

A=t?A.map(a=>(s=u[a>>4]^=1,x[s?'fillRect':'clearRect'](a>>6,a&1008,16,16),a=a+2*s+1&~4,a+=a&1?a%4-2<<10:a%4-1<<4)):[54675,69010,69233,54896]

Mar 2 2021 11:27 PM UTC

}// 140/140

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Multi #langton's #ant

u/tomxor

Squashed each ant into a 16bit bit field, [X,Y,D] = 0b 111111 111111 0111. These ants were generated with: X=7,Y=7,D=0,[[-X,-Y,3+D],[+Y,-X,2+D],[+X,+Y,1+D],[-Y,+X,0+D]].map(([X,Y,D])=>X+60<<10|Y+32<<4|D%4<<0)
u/mark1626

This is incredible. Just one question, how does s = u[a >> 4] ^= 1 work?
u/tomxor

Thanks :) a>>4 is the cell index of a 64x64 grid. the lower 4 bits are for the ant's direction so shifting them off to the right leaves only the 12 X and Y bits (see above). u is just an object, so all of these indicies will be undefined initially, but undefined is falsey and bitwise operators coerce falsey into 0, i.e undefined ^ 1 == 0 ^ 1 == 1, in otherwords XOR just treats all of the initial cell values as 0. Using the assignment version ^= means we toggle each cell between 0 and 1 each time an ant passes through it (which is part of the langton ant rules).

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