Dweets awesomed by u/davidsover

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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smtsjhr

remix of d/20615 by u/smtsjhr

function u(t) {

for(c.width|=n=2;n<8;n++)for(i=0|S(t*n/9)*30+30;k=(150+75*C(t*i/99)),i--;)x.lineTo(480*n-1200+k*S(j=i*6.28/n),540-k*C(j+t*n/5));;x.stroke()

Nov 14 2020 10:47 PM UTC

}// 139/140

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rep_movsd

function u(t) {

eval(unescape(escape`𭁼𯀨𦀽𦐽𤐽𜰵𝐩𛁢👤🐾𩀪𭀥𤐊𭱩𭁨𚁸𚑦𫱲𚁺👫🐾𩡩𫁬𤱴𮑬𩐽𪰬𮀮𩠽𩡩𫁬𤡥𨱴𛁺𨀣𜀰𜀱𨀬𩠨𜀬𜀬𡠽𜡥𜰬𜡥𜰩𛁋👢𚁑𚐬𢰼𜠹𙠦𚁘👘𚠷𙑆𛁙👙𚠳𙐱𩐳𚐬𮠨𤠨𢰬𦀥𤐬𦐥𤐩𚐬𦠽𞐻𦠭𛐻𚑦𫱲𚁡🐱𞱡🀷𞰩𩠨𦀫𢰪𠰨𨐫🐮𜰩𛁙𚱋𚡓𚁡𚐬𞀬𞀩`.replace(/u../g,'')))

Nov 14 2020 6:48 PM UTC

}// 139/140

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#deepavali #fireworks #festival

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tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪀽𜐹𜠬𤠽𝀸𛁩🐸𜀶𝀻𪐭𛐻𮀮𩡩𫁬𤡥𨱴𚁓𚰹𝠬𥀫𝐴𛁃𚁍𨑴𪀮𨑴𨑮𜠨𤰽𪐥𞐷𛑒𛁔👩𛰹𝰭𤠬𬠽𚁓𚡓𚱔𚡔𚐪𚠮𝐩𚠹𚐪𜠰𛑲𙠴𝀦𙡲🠳𝠿𬠼𝀲🱔𛱒𞡓𛱒𞠱𛁲🠳𝠿𬠼𤠺𮠨𜰩𛰵𚐩𮠽𫠽🡮𛐭𙠦𠰨𥀯𜠫𤰪𥀯𤠫𭀪𞐩𚡃𚁔𛰴𛑺𚁮𚐪𜠩𛑲𛰶`.replace(/u../g,'')))

Nov 13 2020 1:17 AM UTC

}// 140/140

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#stargate

Show more comments…
u/DataMeta

wow WHAT
u/DataMeta

super rad combo of that fluid/smoke technique from a while back and the recent 2.5D Doom texture tricks!
u/chris@grimtech.net

Is this an incoming or outgoing wormhole? thanks
u/magna

WHAT.
u/sigveseb

Holy smokes!
u/tomxor

https://news.ycombinator.com/item?id=25088683
u/aleamb

brutal! amazing!!!
u/rep_movsd

This is one of the all time greats
u/Xen

Yess!
u/UEZ

Awesome. One rookie question: where are the color values saved?
u/red-lady

Stargate!!
u/tomxor

@UEZ the width and height of fillRect are used, when less than one pixel it will interpolate the alpha channel in proportion to the area. The same happens when an edge lies between two pixels (anti-aliasing).
u/UEZ

@tomxor: thanks for your fast reply. :-) That's what I thought but when will width used, when height? I'm trying to under JS by converting it to FB.
u/UEZ

*understand
u/tomxor

The following are equivalent when the values of w and h are between 0 and 1: fillRect(0,0,w,h) == fillRect(0,0,w*h,1). This is because the alpha channel of this pixel value is roughly proportional to the subpixel area (w*h). In terms of the patern we are trying to create, multiplication it's like the continuous version of AND, i.e the binary version is 1 IF w AND h. Additionally a lot of characters are saved when separating into w and h because we dont need to wrap the actual subexpression used to create w and h in parens and multiply them i.e fillRect(0,0,(.1+.2)*(.3+.4),1) becomes fillRect(0,0,.1+.2,.3+.4), that's -5 chars!
u/UEZ

@tomxor: thx.
u/nystrand

epic!
u/jelmo

Nice
u/vain

Wow! This seems to be your stargate... Seems you are not from this world! Incredible!!!

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rodrigo.siqueira

remix of d/20258 by u/rodrigo.siqueira

function u(t) {

工=(一,二,十=0)=>一*一>5?十:
工(2*一*二-.7,S(二*二*2-一*一*2),十+1)
工;for(龙=三=1234;龙--;x.fillRect(t*61,龙,力,1))
工,x.fillStyle=R(力=
工(3*龙/三-1,1+t/11)**2,力/5)

Oct 19 2020 5:17 PM UTC

}// 140/140

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Chinese Dragon (中国龙). For more information, the code is self-explanatory.

Show more comments…
u/danny@hille.dk

THAT IS EPIC!!!
u/smtsjhr

will you teach me your new programming language please?
u/KilledByAPixel

Programmed by dragons? 🐉
u/danny@hille.dk

Work one, two, ten, if one times one is grater than five then ten else work... - poetry
u/shmoo22

I was wondering if people could code using Japanese characters instead of just English. Cool post, well done
u/rodrigo.siqueira

#dragon

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jellyedwards

function u(t) {

h=32
with(x)for(k=c.width=512;k--;beginPath(fill(ellipse(a,b,99,h,0,2-j,1+j))))fillStyle=`hsl(${i=h+k%h} 99%50%`,moveTo(a=256,b=i+(j=k<a)*t)

Oct 18 2020 9:38 PM UTC

}// 140/140

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a poltergeist steals a slice of #pumpkin pie extremely slowly

u/jellyedwards

the journey from ~300 chars to 140 is tough!
u/jellyedwards

could've shaved off a couple more bytes and have it work in Safari too:
u/jellyedwards

h=32 with(x)for(k=c.width=512;k--;beginPath(fill(ellipse(a,b,99,h,0,2,1,j))))fillStyle=hsl(${i=h+k%h},99%,50%,moveTo(a=256,b=i+(j=k<a)*t)
u/jellyedwards

h=32,with(x)for(k=c.width=512;k--;beginPath(fill(ellipse(a,b,99,h,0,2,1,j))))fillStyle=`hsl(${i=h+k%h},99%,50%`,moveTo(a=256,b=i+(j=k<a)*t)
u/Xen

slowly is how they always steal it :-(

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KilledByAPixel

remix of d/1829 by u/New_Core

function u(t) {

with(x)for(c.width|=i=300;j=i--/300;beginPath(stroke()))ellipse(1e3+700*C(t+j*2),500+99*S(t+j*2),50-50*C(i/60),180+160*S(-i/40),S(t)/4,0,7)

Oct 10 2020 2:29 AM UTC

}// 139/140

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Moiré Fish 🐟

u/galactustrombone

remix of a classic 👌
u/davidsover

👌👌

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taupelink

remix of d/19950 by u/taupelink

function u(t) {

r=Math.random;for(i=k=120;i--;x.fillRect(k*X,k*Y,i/t,i/t))X=r(Y=r()*9)*16,x.fillStyle=R(h=k*S(S(Y*S(p=X-X*X/16)+p*S(Y))*(p&Y)+p)|i,h+=i,h+i)

Sep 16 2020 2:03 AM UTC

}// 140/140

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d/19976

u/smtsjhr

looks like farmer Bob Blue decided to wear his favourite hat and overalls today!
u/tomxor

Haha yes!
u/danny@hille.dk

anybody remember 'Duke, the Java Mascot''
u/erin

amogus

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taupelink

remix of d/19890 by u/taupelink

function u(t) {

r=Math.random;for(i=1e3;i--;x.fillRect(960+k*X*C(Y),k*X*S(Y),k/t,k/t))X=r(Y=r(k=50)*4)*k,x.fillStyle=R(h=220*C(X**3/1e3/S(Y)),h/.9,k+h*.9)

Sep 10 2020 5:54 AM UTC

}// 138/140

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d/19903

u/magna

Wooow!
u/magna

(Looks very 3D)

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taupelink

remix of d/19889 by u/taupelink

function u(t) {

r=Math.random;for(i=1e3;i--;x.fillRect(k*X*C(Y),k*X*S(Y),k/t,k/t))X=r(Y=r(k=50)*2)*k,x.fillStyle='#'+'3FFC30'.substr(4*S(X*X/k/S(Y)&41)&3,3)

Sep 9 2020 4:02 AM UTC

}// 140/140

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d/19890

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taupelink

remix of d/19845 by u/taupelink

function u(t) {

r=Math.random;for(i=z=2200;i--;x.fillRect(X*C(Y),X*S(Y),20/t,9))X=r(Y=r()*2)*z,x.fillStyle='#'+'00003F'.substr(9*C(Y)+7*S(X&t)*S(z/X/Y)&3,3)

Sep 7 2020 4:43 AM UTC

}// 140/140

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d/19865

u/taupelink

CW: flashing lights
u/Xen

sexy!

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