Dweets awesomed by u/Odog8

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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tomxor

function u(t) {

t>1&&eval('U='+parent[c.style=9*u.r|reset()].u);U(t);if(t%1>.8)for(c.width=128,i=1e4;i--;)x.fillRect(i&127,0|i/120-t*4,1,u.r=Math.random())

Mar 13 2020 1:15 AM UTC

}// 139/140

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Dwitter Vision

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u/Xen

love the idea
u/DaSpider

ReferenceError: U is not defined
u/KilledByAPixel

how is this possible?
u/tomxor

All loaded iframes are enumerated on the window object (for any webpage), the value is the window object of the corresponding frame... and from inside a dweet this can be accessed (with restrictions) by going to the parent frame, then you have access to any globals in that other frame. While you can't call a function since it's in a different JS context, you can read it's source and re-evaluate it.
u/tomxor

essentually window.parent[n].u is the function created by dwitter for dweet n on the page, if you add it to a string it calls toString which returns the source, you can eval this and assign it to something to run in this context.
u/tomxor

I think I am the most verbose person here sorry :/
u/jellyedwards

Wow that's amazing!
u/jellyedwards

Very nice presentation of that little trick
u/katkip

nice trickery. #exploit #trick #hack
u/sigveseb

Woah

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New_Core

function u(t) {

for(c.width|=j=9;j--;)for(i=60;i--;x.fillRect(960+j*Z*50*S(j)+(99*S(i*22)*Z),540+i*S(v=i/60)*C(v-t*3+j)*Z,Z*2,Z*9*S(i/16-4)+5))Z=2**T(t/5+j)

Mar 10 2020 4:22 PM UTC

}// 140/140

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Birds

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u/13thptr

amazing #d3
u/Whimpers

wow
u/tomxor

woo!
u/yonatan

lifelike!
u/Odog8

daaaamn
u/joeytwiddle

bravo! #bird #nature
u/katkip

nice
u/vain

i really love this

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BriSeven

function u(t) {

w=c.width
for(i=0;i<w;i++)
x.fillStyle=R(S(6*i/w)*255*S(t),-C(6*i/w)*255*C(t/2),-S(6*i/w)*255*S(t/4)),x.fillRect(i,200*(t%5),1,50)

Mar 9 2020 11:46 PM UTC

}// 130/140

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Colored lights

u/joeytwiddle

I think they are still images but my brain tells me they are shrinking outwards! #illusion

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Odog8

function u(t) {

t<2?b=t:b=0;for(a=2e3;a--;)x.fillText('O',(S(a+b*20)+1)*1920/2+C(20*b)*b*10,a+20*b+S(20*b)*b*10)

Mar 8 2020 10:37 PM UTC

}// 96/140

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scanning electron micrograph of graphene?

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rodrigo.siqueira

remix of d/17798 by u/veubeke

function u(t) {

x.font='5in"'
x.shadowColor=`hsl(${40*S(t*2)},90%,50%)`
x.shadowBlur=30
x.fillText('🍇🍷🍾',99,850)
x.drawImage(c,-16,-9,1952,1098)

Mar 8 2020 7:47 PM UTC

}// 128/140

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Grapes, #glass of wine and bottle. Cheers.

u/Odog8

hail Dionysus, the god of wine!

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Odog8

function u(t) {

c.width|=c.style.filter=`blur(9px)contrast(9e9`,x.scale(80,99);for(i=9;i--;x.fillText('.',3*S(2*i+t)+9,3*C(i+t/2)+6))x.fillStyle=R(20,40,70)

Mar 6 2020 10:45 PM UTC

}// 140/140

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hacky Metaballs

u/katkip

i wanted to create the same thing :D

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DaSpider

remix of d/17828 by u/KilledByAPixel

function u(t) {

for(z=c.width|=j=2;j--;)for(i=780;i--;x.fillRect(940+C(a=i/127+1)*250,1e3+S(a)*39,30,j?-t*150:-1e3))x.fillStyle=R(j*99,j*199,j*z,j?.04:.005)

Mar 3 2020 9:47 PM UTC

}// 140/140

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Not a #Glass half empty kind of guy...

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KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁣𛡷𪑤𭁨𯀽𪠽𝐻𪠭𛐻𩡩𫁬𤱴𮑬𩐽𤠨𭠽𜠵𝐬𭠭𪠪𜰹𛁶𛑪𚠱𞐹𚐬𩡩𫁬𚀩𚑦𫱲𚁢𩑧𪑮𤁡𭁨𚁩🐵𝰩𞱩𛐭𞱬𪑮𩑔𫰨𞐶𜀫𬠪𚀲𞀭𪐩𚠪𜠪𤰨𨐽𪐯𞐩𛰵𜀰𚱓𚁃𚁡𚐪𞐫𭀪𞐩𚠱𞐬𞐰𜀫𬠪𠰨𨐩𛑲𚠮𞐩𚑲👪𛐴🱪𚠹𞐫𞐹𚱓𚁩𚡩𚱴𚠹𚐪𜐹𞠱𩐴`.replace(/u../g,'')))

Feb 29 2020 4:22 AM UTC

}// 140/140

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#Flame 🔥 - inspired by https://codepen.io/FelixLuciano/full/ZEGpqdM

u/DataMeta

🔥
u/sigveseb

This is on #fire !
u/katkip

Nice!

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Odog8

function u(t) {

throw unescape('CODE HERE!'.split``.map(e=>('00'+e.charCodeAt().toString(16)).slice(-2)).join``.replace(/(....)/g,'%u$1'))

Feb 27 2020 2:46 PM UTC

}// 122/140

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compressor. even no of chars, uncompress w/ eval(unescape(escape.replace(/u(..)/g,"$1%")))

u/Odog8

eval(unescape(escape`COMP. CODE`.replace(/u(..)/g,"$1%")))
u/katkip

#compressor #tool
u/katkip

works pretty good

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Odog8

function u(t) {

eval(unescape(escape`ⅴ☦⡁㵂㴰⤻䴽䵡瑨⹡扳㭣⹷楤瑨㵩湮敲坩摴栻砮景湴㴧㍥洢✻潮浯畳敭潶攽攽㸨堽攮砬夽攮礩㭸⹦楬汔數琨✽ħⱘⱙ⤻砮晩汬呥硴⠧伧ⱁⱂ⤻䄭㵍⡁ⵘ⤯⡁ⵘ⬮ㄩ㭂ⴽ䴨䈭天⼨䈭夫⸱⤻
`.replace(/u(..)/g,'$1%')))

Feb 26 2020 11:58 PM UTC

}// 131/140

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Cat & mouse test

u/aleamb

#interactive

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