Dweets awesomed by u/lulasz

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: #ScaryMovies

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ElisionFR

function u(t) {

c.style.cursor='none'
c.width=innerWidth
m=e=>x.fillText('🐁',e?.x,e?.y)
onclick=e=>{c.a=[e].concat(c.a)}
onmousemove=e=>R=e
c.a?.map(m)
m(R)

Feb 23 2020 9:11 PM UTC

}// 140/140

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#mouse #click #stamp

u/ElisionFR

Any idea why if I replace "R" by "j" in this script I get a "j is not defined" error ?
u/ElisionFR

God I'm an idiot R is defined as a function by Dwitter....
u/tomxor

nah, i led you down that rabbit hole... using a predefined object (in this case a function, doesn't really matter), is a way to not have to check the object exists to access properties. But you've discovered the new nullish collescing operators :D I can't run this yet cos chrome 80 hasn't landed in debian. looks like it still requires more chars than using existing objects though.
u/tomxor

Hmm, getting a syntax error for browsers who don't support the syntax seems to permantently break the dweet, I have to copy paste to manipulate it.

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KilledByAPixel

remix of d/17720 by u/tomxor

function u(t) {

c.style.cursor='none'
onmousemove=e=>{c.width=innerWidth,x.font='3em"',x.fillText('🐁',e.x,e.y)}

Feb 23 2020 8:11 PM UTC

}// 95/140

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#mouse position using innerWidth

u/ElisionFR

Where does innerWidth come from and why does it stop working when I put it outside the event ?
u/ElisionFR

Never mind, if I do that c.width= clears the canvas
u/tomxor

innerWidth is just a global (on window) which in the context of the dweet is the iframe which is conveniently the same size as the canvas... It does work outside of the event handler but you have to remember to move the draw function out as well since it will only draw when mouse is being moved.
u/pavel

onmousemove=e=>x.fillText('🐁',e.x,e.y,c.width=innerWidth,x.font='3em"')
u/KilledByAPixel

nice pavel

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Cloud

remix of d/17629 by u/Cloud

function u(t) {

for(c.width|=i=0;i++<1e2;){x.font="9em s"
x.fillText("💧",960-S(i/.6)*800,t*2080-i*300)}
x.fillStyle="blue"
x.fillRect(0,1110-t*40,1960,t*40)

Feb 18 2020 7:35 AM UTC

}// 140/140

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u/Hepka

Nice.

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rodrigo.siqueira

remix of d/12354 by u/rodrigo.siqueira

function u(t) {

for(a=b=i=2e4;i--;x.fillRect(960+99*a,540+99*b,.1,1))r=Math.random(),[a,b]=r>.5?[S(b)*8,C(a*b+t)*5]:[S(b/3)*5,a/3]
x.fillStyle=R(b*60*(i%3))

Feb 5 2020 12:33 PM UTC

}// 140/140

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Into the abyss of rectangles #recursive

u/DaSpider

Where is the recursion?
u/rodrigo.siqueira

Each [a,b] is defined by the previous state of [a,b], so it's actually iterative.. It's based on IFS (Iterated Function System) with transformations are based on a probability.
u/sigveseb

That shading ends up looking really nice!
u/tomxor

Yeah, really nice texture!
u/lulasz

Looks like pencil drawing 🤔

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taupelink

function u(t) {

t||(c.width=600,n=1);x.fillText("\"Someone walks into a bar&tells the Recursive Bar Joke better:",n*9,n++*9);throw "Gets funnier every time"

Jun 29 2019 4:58 PM UTC

}// 140/140

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A Recursive Bar Joke. #recursive #recursion #silly

u/katkip

um ok
u/metamero

my kind of humour

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KilledByAPixel

remix of d/14763 by u/KilledByAPixel

function u(t) {

c.width|=0
with(x)for(j=50;j--;)for(beginPath(i=99);i--||stroke();)arc(j%10*192+96,50+96+(j/10|0)*192,96,q=i*.0641,(q*j+t)%(Math.PI*2))

Jun 25 2019 9:46 PM UTC

}// 135/140

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Iris Variations

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u/loktar

Awesome!
u/Xen

LOVE IT!
u/donbright

ok thats it. Internet is now complete. no need for anything else
u/magna

#multidweet
u/KilledByAPixel

Mathologer video about this: https://www.youtube.com/watch?v=qhbuKbxJsk8
u/KilledByAPixel

https://www.fxhash.xyz/generative/2216 #fxhash

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taupelink

function u(t) {

t||(a=[[]],r=k=0);x.font=`3em"`
a[r][k]=k%r?a[r-1][k-1]+a[r-1][k]:1
r<16&&x.fillText(a[r][k],960-60*r+120*k,60*r+60)
++k>r&&(a[++r]=[],k=0)

Jun 18 2019 1:17 AM UTC

}// 139/140

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Pascal's Triangle #math #recursive #recursion

u/katkip

Awesome!
u/donbright

#numbertheory

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KilledByAPixel

remix of d/11852 by u/metamero

function u(t) {

eval(unescape(escape`𭀿𣐮𫱮𪑮𬁵𭀽𩠽🡍𛡶𨑬𭑥👣𫱤𩐮𬡥𬁬𨑣𩐨𛱛𧠡𛑾𧐫𛰬𤱴𬡩𫡧𛡦𬡯𫑃𪁡𬡃𫱤𩐨𛠮𛡛𛠮𛠨𭠽𣐮𭡡𫁵𩐩𛡬𩑮𩱴𪀥𜠿𭠫𙰻𙰺𭡝𛡭𨑰𚀨𩐬𪐩🐾𩐮𨱨𨑲𠱯𩁥𠑴𚀩𯀨𪐥𜠿𝐵𞠵𝀩🀼𜐰𚐩𚐺𨰮𫱵𭁥𬡈𥁍𣀽𘠼𭁥𮁴𨑲𩑡𘁣𫱬𬰽𝰴𘁲𫱷𬰽𜠰𘁩𩀽𣐾𘠻`.replace(/u../g,'')))

May 28 2019 8:45 PM UTC

}// 140/140

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Dwitter compressor 3.0 (194B pack) Remix with larger text area and triggers on input instead of onblur. #compressed #tool

u/KilledByAPixel

Uncompressor ~ d/14281
u/katkip

#compressor
u/KilledByAPixel

xem explains how it works... https://xem.github.io/codegolf/obfuscatweet.…

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KilledByAPixel

function u(t) {

eval(unescape(escape`琿挮睩摴桼㴰㨨䔽㔰ⱘ㵙㴵㌰ⱁ㴷ⱂ㴴ⱄ㵛崩㭆㴨圬娩㴾⡊㵄孇㴨圯䕼〩⭚ⵚ╅崬䑛䝝㴱ⱊ籼ⴱ⤻硛昽❦楬汒散琧崨堫㵁⨽䘨堫䄬天ⱙ⬽䈪㵆⡘ⱙ⭂⤬㤬㤩㭦潲⡩㴰㭩㰲攳㬩硛晝⡩╅⩅Ⱪ⵩╅Ⱑ䑛椫⭝⩅ⱅ⤻`.replace(/u(..)/g,"$1%")))

Apr 26 2019 7:59 PM UTC

}// 139/140

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#Breakout tribute

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u/pavel

Nice!
u/Jezza

This is so satisfying. Brilliant!
u/aleamb

great! relaxing
u/katkip

How
u/KilledByAPixel

See pavel's uncompressed version, it is much cleverer.
u/katkip

#compressed

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joeytwiddle

function u(t) {

c.width|=p=(X,Y,W,I,H=W/2)=>H>2?(p(X,Y,H,I*=Math.random()**.2),p(X+H,Y,H,I),p(X,Y+H,H,I),p(X+H,Y+H,H,I)):x.fillRect(X,Y,I,I),p(0,0,R=1024,9)

Jan 9 2019 3:15 PM UTC

}// 140/140

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a sort of rough #recursive #plasma #fractal

u/joeytwiddle

Ideally we would keep the edges smooth, by holding an intensity for each corner instead of the entire square
u/joeytwiddle

W=width, H=half width, I=intensity, p=plot/plasma/partition
u/joeytwiddle

p calls p four times for each sub-square, with a randomly smaller I

dwitter.net | lulasz (202)