Dweets awesomed by u/dull_pixel

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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jylikangas

function u(t) {

x.shadowColor="#0af",x.shadowBlur=99-C(t)*50
for(i=0;i++<40;x.fillRect(960-z-j/2,1070-i*5,z*2+j,-z*4))z=2e3/(i-t%32),j=i%3*z

Mar 22 2020 6:32 AM UTC

}// 124/140

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Glowing Hallway

u/sigveseb

Woah nice

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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

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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katkip

function u(t) {

eval(unescape(escape`𨰮𬱴𮑬𩐮𨡡𨱫𩱲𫱵𫡤👒𚀩𞱸𛡬𪑮𩑗𪑤𭁨🐱𜀻𮀮𨡥𩱩𫡐𨑴𪀨𚐻𩡯𬠨𬠽𚀳𜀰𚰱𜀰𛱴𚐬𪐽𞀻𪐭𛐻𚑸𛡡𬡣𚀹𝠰𚱃𚁩𚠳𛠵𞐫𛠷𚐪𬠬𝐴𜀫𤰨𪐪𜰮𝐹𚰮𝰩𚡲𛀰𛀰𛀰𚐻𮀮𬱴𬡯𪱥𚀩𞱸𛡳𪁡𩁯𭱂𫁵𬠽𝀰𛱴𞱸𛡳𪁡𩁯𭱃𫱬𫱲👒𚀱𜀰𛱴𛀳𜀰𛱴𚐠`.replace(/uD./g,'')))//7

Mar 11 2020 7:16 PM UTC

}// 140/140

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Need programming help? Summon XaTuring, the God of Technology. A very useful godform (manmade) that really deserves respect! 111 http://www.waningmoon.com/xaturing

u/rodrigo.siqueira

If you are into this, check also the God of AI (also manmade, to be created using AGI algorithm), follow here: https://twitter.com/wayofthefuture_
u/joeytwiddle

XaTuring and the God of AI are nice and all, but what about TimeCube? https://web.archive.org/web/20080709075217/h…
u/Xen

sweet

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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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veubeke

function u(t) {

c.width^=0
for(Y=15;Y--;x.font='8em"')for(X=17;X--;x.fillText(['🙂','😐','😱','🤒'][X-8|Y-6?A-2?X%2:2:A?3:X%2],(X*2+Y%2-1)*60,1105-Y*80))A=t%3|0

Mar 9 2020 8:08 PM UTC

}// 140/140

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Corona Panic

u/ivylab

Funny idea. On font-size 8em you cannot see the mouths of anyone so I think it works better with 6 or 7.
u/veubeke

It works fine with Apple’s emojis. Unfortunately, I don’t have a quick way to test on multiple devices.
u/katkip

In my country, the cases grow extremely fast.

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gpolonus

remix of d/17830 by u/gpolonus

function u(t) {

c.width/=1
onmousemove=e=>c.a=e.x/15
f=(a,y)=>x.fillRect(a,y,9,9)
for(i=0;i++<2e3;)f(i,S(t+i/100*(c.a||0))*400+500)

Mar 8 2020 1:53 PM UTC

}// 115/140

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Variable Sine wave frequency. Move your mouse! #interactive

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tomxor

remix of d/17835 by u/pavel

function u(t) {

eval(unescape(escape`𫱮𫑯𭑳𩑭𫱶𩐽𩐽🡦𚁸𛡬𪑮𩑗𪑤𭁨🐴𛀴𛁣𛡷𪑤𭁨👩𫡮𩑲𥱩𩁴𪀬𤠽𩐩𒡦🐨𦀬𦐬𭰩🐾𚁒𛡸𛑘𛑷𛰲𚐪𚠲𚰨𤠮𮐭𦐭𭰯𜠩𚠪𜠼𭰪𭰪𝠮𜠸𚰳𩐴🱷🠶𙠦𩠨𦀬𦐬𭰯🐲𚑼𩠨𦀫𭰬𦐬𭰩𯁦𚁘𛁙𚱷𛁷𚑼𩠨𦀫𭰬𦐫𭰬𭰩𞡸𛡳𭁲𫱫𩑒𩑣𭀨𦀬𦐬𭰬𭰩`.replace(/u../g,'')))

Mar 5 2020 2:17 AM UTC

}// 135/140

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#interactive #quadtree (move your mouse)

u/tomxor

Note the intersection is fuzzy since full circle-AABB takes too much code, instead it's just circle-point + current subdivision width based radius (w*w*6.28), i.e it becomes more accurate as it converges.
u/tomxor

This is why there are a bunch of divisions around it that would not exist with an exact test. Pavel's doesn't do this by cleverly choosing a geometry that only need intersect the top left of each square.
u/katkip

Nice!

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pavel

function u(t) {

c.width|=f=(X,Y,w)=>X*X+Y*Y<=2e6*S(t/9)**2?w>9&&f(X,Y,w/=2)|f(X+w,Y,w)|f(X,Y+w,w)|f(X+w,Y+w,w):x.strokeRect(X,Y,w,w);f(x.lineWidth=4,4,1072)

Mar 4 2020 5:31 AM UTC

}// 140/140

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Quadtree

Show more comments…
u/katkip

Awesome!
u/tomxor

I love it !
u/sigveseb

Cool!
u/Xen

SEXY!
u/aleamb

love it!
u/tomxor

#Quadtree
u/Qwitter

YES!!
u/vain

Never saw this fx before. But it looks really beautiful

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rodrigo.siqueira

remix of d/15411 by u/rodrigo.siqueira

function u(t) {

c.width|=v=(a,b,Φ,r)=>{for(i=~r;i++;)x.fillRect(a-=S(Φ),b-=C(Φ),s=r/9,s)
r>15&&v(a,b,Φ-S(t),r*=.5)&v(a,b,Φ+C(r-t),r*=1.6)}
v(940,1e3,0,230)

Feb 29 2020 3:38 PM UTC

}// 139/140

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Dancing branches #organic #tree #growth

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