Dweets awesomed by u/geb

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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metamero

function u(t) {

𣐮=new TextEncoder('utf-16').encode(code)[l='length']
𪁲=code[l]
𩰮=Array.from(code)[l]
throw 𣐮+'B ⇄'+𪁲+' units ⇄'+𩰮+' chars\n🐢💩'+'௸'[l]+'𣐮'[l]

Jan 18 2019 1:51 PM UTC

}// 140/140

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i'm a newcomer, but codegolf community must decide whether they like to count code size in UTF-16 characters, UTF-16 code units or bytes (or bits, since b and B are different units)

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u/metamero

#bug
u/f8f82804

I'm personally against exploiting a bug, so I prefer counting 16-bit chars.
u/metamero

u/f8f82804 unicode chars can be 16 or 32-bit (only). this bug is on front, not on server. or stated other way, this bug is on codegolf community policies.
u/metamero

speaking about bugs, this code actually counts UTF-8 chars (as they are represented in the page/editor). one can see this matter with the ௸ symbol (it's 2B long in UTF-16 but 3B in UTF-8). parameter 'utf-16' in TextEncoder is obsolete, see this note here https://developer.mozilla.org/en-US/docs/Web…
u/metamero

d/11906 is my method to count UTF-16 chars
u/metamero

*** this code actually counts bytes of the string encoded with UTF-8 (html context). d/11906 counts bytes of the string encoded with UTF-16 (javascript context). both count Unicode chars (or *code points*) right with Array.from(code).length. this is different from counting *code units* (16-bit unsigned elements).

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katkip

remix of d/11863 by u/katkip

function u(t) {

c.width*=1;f=(X,Y,s)=>{for(i=0;i<9;i++)x.fillRect(X+i*s*2+S(t)*s*6,Y,s,s*4);if(s>10)f(X,Y-s,s/2),f(X,Y+s*3,s/2)};f(440,300,100)

Jan 17 2019 1:59 PM UTC

}// 127/140

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Yeah, #recursive #deault #recursion

u/katkip

#default

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metamero

remix of d/9207 by u/MrM@_S

function u(t) {

eval(unescape(escape`琿䴮潮扬畲㵦㴾䴮癡汵攽捯摥⹲数污捥⠯孞ℭ繝⬯ⱓ瑲楮朮晲潭䍨慲䍯摥⠮⸮⡍⹶慬略⬢㬢⤮浡瑣栨⼮ⸯ朩⹭慰⡥㴾敛昽≣桡牃潤敁琢崨⤼㰸籥学崨ㄩ⤩⤺挮潵瑥版呍䰽∼瑥硴慲敡⁲潷猽㜠捯汳㴷㐠楤㵍㹣潤攢`.replace(/u(..)/g,"$1%")))

Jan 16 2019 3:27 PM UTC

}// 140/140

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dwitter compressor 2.0

u/metamero

paste your code on textarea, click out of it, then get compressed code. same as d/9207, characters ranging from 0-255, limit of 184 bytes.
u/f8f82804

#compressor #tool #compressed
u/f8f82804

#184b
u/username

#compress

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cantelope

function u(t) {

eval(unescape(escape`瑼簨洽㤩㭭⬽ㄯ㈰㭣⹷楤瑨簽〬眽㤶〬栽㔴〻景爨樽㔰㭪ⴭ㬩筸⹢敧楮偡瑨⠩ⱚ㴵〮㈭樭津ㄬ砮汩湥坩摴栽ㄫ㔰⽚⽚㭦潲⡩㴶㭩ⴭ㬩砮汩湥呯⡷⭓⡰㴱⸲㔶⩩⨲⬨樭浼〩⼶⤯娪眬栫䌨瀩⽚⩷⤻砮獴牯步⠩紻`.replace(/u(..)/g,"$1%")))

Jan 16 2019 4:18 AM UTC

}// 138/140

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Based on this: https://codegolf.tk/a/360

u/cantelope

Oops, not that one, rather this one: https://codegolf.tk/a/359
u/cantelope

codegolf.tk has been recently redesigned.. old site is still accessible here https://legacy.codegolf.tk
u/joeytwiddle

The redesign is "on point" as the youngsters say

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metamero

remix of d/11795 by u/metamero

function u(t) {

for(i=99;i--;)s=t?s.slice(r=Math.random,j=r()*s.length)+String.fromCharCode(768+r()*99)+s.slice(j):s=pauseDemo=' dwitter'.repeat(13);throw s

Jan 15 2019 10:09 AM UTC

}// 140/140

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glad my unicode stream inspired some #unicode chaos magic : this is also remix of d/11809 by u/f8f82804

u/f8f82804

#zalgo

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katkip

function u(t) {

t||(c.outerHTML="<input id=q style='border:3px solid' onblur=f>");if(q.value.indexOf('.')>-1)q.value=parseInt(q.value,36).toString(2)

Jan 13 2019 9:40 AM UTC

}// 133/140

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Binary convertor! Write something into the box and press . (dot key)

u/metamero

#application cool

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f8f82804

remix of d/11689 by u/f8f82804

function u(t) {

for(i=c.width^=0;i--;x.fillRect(X/d+960,Y/d/.9-1150,s=47-d*2e4,s))a=S(ϕ=i/612),θ=i*37+C(i/99+t),d=Math.hypot(X=S(θ)*a,Y=C(ϕ)+3,C(θ)*a+5)/3e3

Jan 11 2019 8:11 PM UTC

}// 140/140

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#waves on a #perspectives #sphere -- #d3 #pointcloud

u/f8f82804

this dweet uses a better perspective transform based on Math.hypot -- #hypot
u/f8f82804

The projection still isn't perfect, because I'm rotating the sphere's axis towards the viewer by positioning it below the camera. The resulting distortion is approximately corrected by scaling the Y coordinate with /.9.
u/f8f82804

#perspective

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katkip

remix of d/11741 by u/katkip

function u(t) {

c.width^=0;for(i=800;i--;)x.lineTo(960+S(i*S(i)+t/9)*500,540+C(i*S(i)+t/9)*500);x.fill()

Jan 11 2019 2:46 PM UTC

}// 88/140

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#earth planet

u/13thptr

woah
u/username

does not look like earth though
u/joeytwiddle

It does look like a #planet though. Cool effect for 88
u/katkip

That line in the middle looks a bit like Rusia
u/magna

Awesome technique! You could potentially add a way to "seed" the generation with a number and then search for a seed that resembles the Earth the most using brute-force.

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veubeke

function u(t) {

c.width^=0
x.globalCompositeOperation='xor'
for(i=1300;i--;)x.fill(P=new Path2D,P.arc(960+C(T=i/6*(5+t/500))*(50+T),540+S(T)*(50+T),50,0,7))

Jan 9 2019 8:13 PM UTC

}// 140/140

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JWinslow23

function u(t) {

eval(unescape(escape`景爨昽搽㌰〻搭㴮㔻砮晩汬剥捴⠹㘰⭤⩃⡁⤬㔴〫搪匨䄩Ɽ⼹⬨⠱⵴⨲┱⤪⨸⬨ㄭ琯㠥ㄩ⨪ㄶ⨸⤪⨲Ɽ⼹⤩䄽䵡瑨⹲慮摯洨⤪㘮㌬砮晩汬却祬攽刨昪匨䄫琪㌫匨䄪是搫琩⤬昪匨䄪㔭琪㌩Ɽ⤻`.replace(/u(..)/g,"$1%")))

Jan 7 2019 4:37 PM UTC

}// 131/140

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A cool effect I found somewhere (slightly modified from https://js1k.com/2017-magic/demo/2894 )

u/metamero

nice port hehe
u/lionleaf

Original d/933 by u/p01 I believe :)
u/JWinslow23

Oh, it was? I didn't realize that, thanks for finding that!
u/p01

:)

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