Dweets awesomed by u/DataMeta

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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jylikangas

function u(t) {

x[f="fillRect"](0,0,2e3,2e3)
for(i=600;i--;x.fillStyle=R(i*T))x[f](T=800,199+i,i?M=24+C(t)*20:320,6),x[f](T-i*2,T+i,M+i,C(i/150))

Mar 25 2020 5:19 PM UTC

}// 129/140

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Quarantine Door

u/sigveseb

Nice concept
u/joeytwiddle

#spooky #door #halloween

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tomxor

remix of d/18061 by u/tomxor

function u(t) {

for(a=t?b:[1],b=S,S=[],x.drawImage(c,0,4),p=480;p--;x.fillStyle=S[p]?R():'tan',x.fillRect(p*4,0,4,4))
A=a[p],B=b[p],S[p]=A^B^C,C=(A^B)&C|A&B

Mar 25 2020 1:55 PM UTC

}// 140/140

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480bit #Fibonacci sequence using 1-bit serial adder

u/tomxor

Familiar!? Just realised that this is equivalent to an elementary cellular automata with a 2 state history.

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pavel

function u(t) {

for(i=c.width|=0;j=--i>>5;x.fillRect(960*(z+S(j*j)+r*C(i))/z,3e3*(.2+m*(m<0&&-1)**i)/z,s=--m*9/z,s))m=(t+j/7)%2-1,r=m>0&&m/3,z=2+S(j)+r*S(i)

Mar 25 2020 8:28 AM UTC

}// 140/140

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Reflections on #rain

u/katkip

beautiful
u/aleamb

amazing
u/vain

amazing rain drop fx

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pavel

function u(t) {

for(c.width=w=480,i=999,f=g=>S(i)*g(t)+r*S(i*w)*g(t+8);i--;x.fillText('#=*-.'[z-9|0]||'',240+w*f(S)/z,135+w*r*C(i*w)/z))r=2+C(i),z=15+2*f(C)

Mar 25 2020 4:10 AM UTC

}// 140/140

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#ascii #donut

u/Odog8

Hmm, I' m intrested in how this works?

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KilledByAPixel

function u(t) {

eval(unescape(escape`𭱩𭁨𚁸𚑦𫱲𚁫🐰𞱫🀱𩐳𞱦𪑬𫀨𩑬𫁩𬁳𩐨𪐪𝀫𤰨𭀪𞐫𪐩𚠳𛀨𤰨𪐪𪐩𚡔𚱔𚱴𚠨𪐥𝐫𜠩𚠵𞐩𙐲𩐳𛑪𚠹𛐹𛁷👫𚰫🰹𛑪𚠳𛑓𚁩𚱴𚐪𜰺𥀽𜑥𝐬𭰪𠰨𪐫𭀩𛰲𚱷𛀰𛀰𛀷𚐩𚑩👫🠾𜐬𪠽𪰥𜠬𨡥𩱩𫡐𨑴𪀨𩡩𫁬𤱴𮑬𩐽𤠨𭠽𞐹𚰱𝐵𚡪𚰡𪰪𜠹𛁶𛁶𛀮𜰩𚐻`.replace(/u../g,'')))

Mar 22 2020 7:01 PM UTC

}// 140/140

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Rain on #Glass 🌧

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pavel

function u(t) {

for(c.width|=0,x.scale(20,20),i=4;i--;x.fillText([..."🦇🥣📈📉😃🙂😨😱"][i<2?i:i<3?4+q>>1:4+~~q],[1+20*q,80,52,32][i],i<2?40:20))q=4/(1+256**C(t))

Mar 20 2020 12:31 AM UTC

}// 138/140

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#corona #meme

u/13thptr

kek
u/13thptr

kek
u/13thptr

kek
u/13thptr

Wtf ? why was my comment posted three times ?
u/digitalfl

very cool φ(゜▽゜*)♪

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KilledByAPixel

function u(t) {

with(x)fillStyle=strokeStyle='#0482',setLineDash([200,20]),
font='34em"',t<1&&x[!t?'fillText':'strokeText']('GLASS',99-t*40,700+t*30)

Mar 19 2020 4:32 PM UTC

}// 133/140

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#GLASS

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tomxor

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀽𜐸𜀻𨰮𬱴𮑬𩐽𙱦𪑬𭁥𬠺𨡬𭑲𚀱𬁸𚑩𫡶𩑲𭀨𙰻𩡯𬠨𭀯🐱𜠬𪐽𜱥𜰻𫐽𪐦𜐬𭠽𜐶𛑭𚠲𛁰🐵𚠨𪐥𝀸🀱𞀩𛁩𛐭𞰩𮀮𩡩𫁬𤡥𨱴𚁭𚠵𜀫𞀰𚱰𚡓𚁐👩𚠪𛠷𚱴𚐫𭠪𠰨𥠽𪐪𚠮𝐫𭀭𭀪𫐪𜐮𝐩𛁭𚠲𜀫𝀰𚱰𚡃𚁐𚐫𭠪𤰨𥠩𚡃𚀡𬀪𪐩𛀱𛀮𝰭𫐪𛠵𚐻`.replace(/u../g,'')))

Mar 15 2020 12:14 AM UTC

}// 140/140

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The Enemy

Show more comments…
u/tomxor

#coronavirus
u/sigveseb

Incredible!
u/katkip

This is extremely #realistic. I'm scared.
u/joeytwiddle

Good render! #virus #organic Here is a great 1 hour documentary about viruses: https://www.dailymotion.com/video/x6agslv
u/aleamb

amazing! fucking amazing!
u/DataMeta

wow, fantastic!
u/KilledByAPixel

😷 Even Dwitter is not safe!
u/Odog8

how though???
u/lionleaf

Insane!
u/lionleaf

I didn't even notice that it was animated at first :O
u/Cloud

#koronavirus
u/vain

What? How does this work? I am speechless... (incredible animated corona/cell)

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tomxor

remix of d/17936 by u/tomxor

function u(t) {

for(c.width=128,i=1e4;i--;)x.fillRect(i&127,i>>7,1,(i**3>>6)/(6+t/1e6)&1)

Mar 13 2020 2:20 AM UTC

}// 73/140

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u/joeytwiddle

Eternal battle between the black ants and the white ants
u/DataMeta

!!

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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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