Dwitter - javascript demos in 140 characters

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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danny@hille.dk

function u(t) {

for(c.width=X=56;X--;)for(Y=36;Y--;x.fillStyle=R(o=255*S(Y/9+C(X/9+C(X/12+Y/12)+S(t*.7))-(9-S(X/9+Y/9-t*.9))),-o,o))x.fillRect(X,Y,1,1)

Jan 21 2021 6:54 PM UTC

}// 136/140

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Hi-res version -> http://glslsandbox.com/e#70766.0

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andrea270872

function u(t) {

x.globalCompositeOperation='xor'
f=(n,a,b)=>n?f(n-1,a,a+(b-a)*.4)+f(n-1,a+(b-a)*.5,b):x.fillRect(a,t%8*180,b-a,(t/8)%8)
f(~~t%8,0,1900)

Jan 21 2021 12:10 PM UTC

}// 135/140

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Cantor's monoliths

u/Xen

nce

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Qwitter

function u(t) {

eval(unescape(escape`𣤽𚄹𚥴𚴲𚕞𜄻𤄽𜔻𥄽𙴠𤅲𪕭𩔮𙴻𮄮𩥯𫥴🔧𝤰𬅸𘅁𙴻𩥯𬤨𪴽𜤻𪴼🕎𚤪𛤵𞵫𚴫𚔨𣤥𪴩𯅼𚅐🔰𚔻𪕦𚅐🔽𜄩𮵔🔧𙴻𯕑🔲𝔫𣤥𝤪𜴰𜄻𤄽𚄨𣤯𝤩𧤰𚔪𜔰𜄻𮄮𩥩𫅬𥅥𮅴𚅎𚵔𛅑𛄱𜄰𚵐𙔱𜄰𜄩𞵸𛥣𫅥𨕲𤥥𨵴𚅑𛄨𤄫𜔰𜄩𙔱𜄰𜄬𜴰𜄬𜤰𜄩𞴊`.replace(/u../g,'')))

Jan 21 2021 11:44 AM UTC

}// 137/140

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Primes: fixed & deleted again ! (thanks u/pavel for reminding me 1 is not prime)

u/danny@hille.dk

I didn't need a reminder, I simply did not know :-) Learne somthing today: https://blogs.scientificamerican.com/roots-o…
u/Qwitter

Thanks for the link. More embarrassing was the first deleted version, where I also forgot that 2 < sqrt(2)+1.

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danny@hille.dk

remix of d/18730 by u/yonatan

function u(t) {

with(x)for(c.width=i=500;i--;beginPath(stroke()))setLineDash([i/(3+S(t/i))]),strokeStyle=R(0,!arc(255,150,S(i/66)**2*125,C(t+i/9),9),i)

Jan 20 2021 7:12 PM UTC

}// 135/140

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random remix

u/Xen

oooo nice
u/Qwitter

that is awesome

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ciaccodavide

remix of d/21350 by u/metamero

function u(t) {

}c.outerHTML=`<br><br><br>





D̛̮̙̳͒ͧͯ̉ͬ̌̍ͭͬW͈̪̺̮͒̀͢I̻̱̖̬͓̩̔͌̍̒̌͐̅͜͠T̵̛͚̥̜̣̯͔ͤ͆͐̍͊ͅT̰͎̗̖͉ͯ̒̈̌̍̾͑͠ͅĖ̵̡̟̍̂Ŗ̭̠̯͓̫͙̎̍ͣͫ̿̎̈̈́̋͘!̟͖̟̘̬̣͓̽ͮ͊͠`;{

Jan 21 2021 2:23 PM UTC

}// 140/140

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u/Xen

H̦̝̔̑̏e̠͍̦͓̹͙̅̆͑̐͐ ͈̝̙͙ͩ͌ͣC͙̒̀ͧͭȏ̥͎͍͔̮̙̊̒̎͂̉m͇̖̬̦͖̝ͮ́ẹ͎͉͖̗̩̈ͨ̆ͤs̼̣ͦͬ͗ͥ̽ͥ

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Billedluh

function u(t) {

eval(unescape(escape`𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛀳𩐳𛀳𩐳𚐊𮀮𩡯𫡴🐢𜐲𜁥𫐧𘠊𮀮𩡩𫁬𥁥𮁴𚀢𧁵𮰱𡠶𡐳𯐢𛀰𛀱𩐳𚐊𩡯𬠨𪠽𜰰𞱪𛐭𞰩𮀮𩡯𫡴🐨𬰽𜠪𚠨𞐭𚀲𚡴𚱪𛰳𚐥𜐰𚐩𚰢𩑭𙰢𛁸𛡦𪑬𫁔𩑸𭀨𤱴𬡩𫡧𛡦𬡯𫑃𫱤𩑐𫱩𫡴𚀱𜠸𝠴𜀫𪠩𛀹𝐵𚰨𛠷𛑪𙐳𚐪𬰪𜠵𛀴𝐰𚱳𚠳𝐩`.replace(/u../g,'')))

Jan 21 2021 12:54 AM UTC

}// 138/140

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Planes Trains Etc

u/Billedluh

(again the emoji stuff breaks if the emoji images change. The cars are Not driving in to the sky on iOS 14.
u/Billedluh

And full credit goes to @cspray who did basically all of this
u/Billedluh

Archiving how it looks before apple breaks it https://media.giphy.com/media/EOy7DFRBdWD910…
u/UEZ

#starwars_scroller

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Qwitter

remix of d/21359 by u/Qwitter

function u(t) {

eval(unescape(escape`𤤽𞔹𞵸𛥦𪕬𫅓𭅹𫅥🔢𘴰𜄰𜔢𞵸𛥦𪕬𫅒𩕣𭄨𜄬𜄬𫔽𜔹𜤰𛅭𚔻𩥯𬤨𪴽𤤻𪴭𛔻𚕦🕃𚅫𚔪𭄬𪄽𤴨𪴩𚥴𚴱𛅑🕒𚤨𝄫𠴨𪄩𚥔𚅦𚵴𚔩𛅰🕓𚅨𚔬𦄽𞔶𜄫𤴨𩤩𚥑𛅙🔵𝄰𛕃𚅦𚔪𤔬𥴽𞔯𚄱𛤲𛕰𚔪𚤮𞄬𮄮𩥩𫅬𤵴𮕬𩔽𨄣𩤲𜅠𛅸𛥦𪕬𫅒𩕣𭄨𦄬𦔬𥴬𥴩`.replace(/u../g,'')))

Jan 21 2021 8:06 PM UTC

}// 138/140

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maelstrom

u/Xen

wow :-O

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Xen

function u(t) {

//𝕩.𝕗𝕚𝕝𝕝ℝ𝕖𝕔𝕥(𝟟𝟘𝟘,𝟝𝟘𝟘,𝟛𝟘𝟘,𝟙𝟘𝟘)












x.fillRect(700,500,300,100)

Jan 21 2021 5:41 PM UTC

}// 69/140

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u/danny@hille.dk

😀😀😀😀
u/Qwitter

you got me! NICE

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indjev99

remix of d/4804 by u/indjev99

function u(t) {

D=b=>64*S((i*i+b*b)**.5*.5-3*t);for(i=192;i--;)for(j=108;j--;)d=D(20-j)+D(88-j)+128,x.fillStyle=R(d,d,d),x.fillRect(i*10,j*10,10,10)

Jan 20 2021 5:39 AM UTC

}// 132/140

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Higher res but runs much slower.

u/tomxor

Nice! 2 point source #interferencepattern

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ciaccodavide

remix of d/21397 by u/ciaccodavide

function u(t) {

c.width|=1
for(Y=0;Y<280;Y+=18){
x.lineWidth=Y/10
x.beginPath()
for(X=220;X--;)
x.lineTo(X*9,101+S(X/9+t+Y*S(3/20))*36+Y*3.14)
x.stroke()}

Jan 23 2021 4:31 PM UTC

}// 138/140

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chainlink wire fence