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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tomxor

remix of d/15822 by u/joe.m

function u(t) {

for(c.width=w=X=1920;X--;x.fillRect(X,w*Y/18,9,9))
for(Y=n=5;n--;k=n*2+1,Y+=S(38*X/w*k)/k**(2-S(5*X/w-3*t)))1

Sep 27 2019 8:03 PM UTC

}// 109/140

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Squine Wave

Show more comments…
u/Xen

i wanna hear it!
u/tomxor

Oh no the challenge has been set! i'd imagine it sounds a bit like wavetable synthesis, even though it's not.
u/KilledByAPixel

it sounds like tone morphing between a sine and square wave.
u/katkip

interesing
u/katkip

^ with t
u/iverjo

#waveform

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robbyg

remix of d/15802 by u/robbyg

function u(t) {

for(i=2304,Z=30;i--;x.fillRect(H*Z,V*Z,Z,Z))H=i%64,V=i/64|0,A=Math.atan2(V-18,H-32),x.fillStyle=S(Z*t+5*A)>0>0?'#1112':'#eed6'

Sep 27 2019 3:22 PM UTC

}// 126/140

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Staring at the ceiling fan.

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Xen

function u(t) {

with(x)for(i=8;i--;fillStyle=`hsl(${a*57.3+t} 70%60%`)beginPath(fill(lineTo(960,540))),arc(960,540,2e3,a=i*.8-t,a+.8)

Sep 26 2019 5:10 PM UTC

}// 117/140

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u/DataMeta

Mhm yup

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robbyg

remix of d/15800 by u/zooi

function u(t) {

for(i=3e3,c.width|=Z=30;i--;S(8*t+8*A)>0&&x.fillRect(H*Z,V*Z,Z,Z))H=i%65,V=i/65|0,A=Math.atan2(V-18,H-32),x.fillStyle=`hsl(${A*57},70%,60%)`

Sep 25 2019 9:48 PM UTC

}// 140/140

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Remixed for fullscreen goodness and color. 🌈⭐

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yonatan

function u(t) {

for(c.width|=i=99,x.font='4in "';i--;x.fillText('EMBOSS',250+(i&&S(i)*i/9),750+(i&&C(i)*i/9)))x.fillStyle=`hsl(0 0%${i?S(i+t*2)*50+75:99}%`

Sep 24 2019 12:00 PM UTC

}// 140/140

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I think fullscreen looks nicer

u/joeytwiddle

#text #lighting

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KilledByAPixel

remix of d/15782 by u/KilledByAPixel

function u(t) {

t?eval(O+=";for(c.width|=9-)xlRe40+*S3,52"["𠒃񁔇񢖋񓗍񐇯򐃑񐙒򴵅򹋖񕷘󋢙򒭘󅪻󅮛󭫝򕠀".charCodeAt(I/2)>>I++%2*5&31]):I=O=""

Sep 23 2019 8:48 PM UTC

}// 98/140

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Smaller uncompressor, only takes about a second to boot up!

Show more comments…
u/KilledByAPixel

Here's the compressor code... $="for(c.width|=i=9;i--;)x.fillRect(400+i*99+S(t)*300,400,50,200)";n=[...new Set([...(';'+$)])].join(o='');for(v=i=0;(q=$[i])||i%4;++i)v+=q?n.indexOf(q)<<i%2*5:0,i%2?(o+=String.fromCharCode(((i%4==3?55:54)<<10)+v),v=0):0;throw 't?eval(O+="'+n+'"["'+o+'".charCodeAt(I/2)>>I++%2*5&31]):I=O=""'
u/KilledByAPixel

From my testing it can do up compress up to 224 characters of code if all of the unique 32 characters are used!
u/KilledByAPixel

#compressor
u/tomxor

Swapping the ternary statement for }{I=O="" at the end saves one more char.
u/tomxor

But this will only work on a new dweet
u/tomxor

Really need a larger charset though :/ I think 64 should be enough for most, which bumps it up to 6 bits, but that requires a lot more code to extract, might still be better than 184 though?
u/tomxor

Nah, before even considering extra decompression code, 6 bits with 32 dictionary barely provides 192 chars, as soon as you start actually filling the dictionary with more you quickly go under 140 encoded chars. I think you hit the best balance for this method.
u/KilledByAPixel

i think 5 bits is the sweet spot, it is definitely tough writing code that only uses 32 chars but maybe we can see some programs that would not otherwise be possible
u/DataMeta

#hiddengem

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KilledByAPixel

remix of d/15778 by u/KilledByAPixel

function u(t) {

for(I=O="";Q="𠒃񁔇񢖋񓗍񐇯򐃑񐙒򴵅򹋖񕷘󋢙򒭘󅪻󅮛󭫝򕠀".charCodeAt(I/2);O+=";for(c.width|=9-)xlRe40+*S3,52"[Q>>I++%2*5&31]);eval(O)

Sep 23 2019 7:22 PM UTC

}// 107/140

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4-1 compressed #default

u/tomxor

Reduced character set encoding :P I was literally thinking to do the same thing, also this is how some SMS txt compression standards work apparently.

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cagr30

function u(t) {

c.width=w=270
for(i=8;i--;)h=54*(3*t+i)%w,a=i<5,b=i>6,x.fillRect(w/2+(a?0:b?-7-45*S(t):w*(i-5.5)/2),a?h:b?96:5,b?20:3,5*(a?2:(b?9:2*w)))

Sep 23 2019 6:58 PM UTC

}// 136/140

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KilledByAPixel

remix of d/15766 by u/KilledByAPixel

function u(t) {

for(I=O="";q="𠑣𹃦񚁉񪤥񐒬񲆥򁓢򉘄񤖂񓇄򙒊򡂅𼢏򋨢򪙅򱂪𲒅𣧥򑅑񰤌򁇥򃙅񚂅𥒪񊒤򰓎𢢦𛵍񫄥𠑊񹑊񱘄𸤃񔆩񒗄򫂅𫢶𚕈󂔥𱺅񓪗𸠯񣒬񻲮𦊅𣉦򉘄񤖂𳂪𳴐󛦅𱅮".charCodeAt(I/2);O+=";helo dwitr!sancmpf.uvyqbg"[q>>I++%2*5&31]);throw(O)

Sep 23 2019 5:23 PM UTC

}// 140/140

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New 4-1 compressor proof of concept! In this example the compressed code is 208 chars.

u/KilledByAPixel

#COMPRESSOR replace $ with your code... $="for(c.width|=i=9;i--;)x.fillRect(400+i*99+S(t)*300,400,50,200)";n=[...new Set([...(';'+$)])].join(o='');for(v=i=0;(q=$[i])||i%4;++i)v+=q?n.indexOf(q)<<i%2*5:0,i%2?(o+=String.fromCharCode(((i%4==3?55:54)<<10)+v),v=0):0;throw 'for(I=O="";Q="'+o+'".charCodeAt(I/2);O+="'+n+'"[Q>>I++%2*5&31]);eval(O)'
u/tomxor

This is way better than my crazy delta compressor, but it's still surprisingly difficult to stick to a 32 char set.

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KilledByAPixel

function u(t) {

eval(unescape(escape`𨰮𬱴𮑬𩐮𨡡𨱫𩱲𫱵𫡤🐧𘰶𡁆𙰻𭀿𨠽𘑢𞡡👢👱🐱𝐲𜰻𭱩𭁨𚁸𚑢𩑧𪑮𤁡𭁨𚁦𪑬𫁓𭁹𫁥👢🰧𘰳𜰳𙰺𙰣𝰷𝰧𚐬𫁩𫡥𥁯𚁔𛑴𚠱𩐴𛁨🐱𞀰𜀩𛁡𬡣𚁔🐱𩐳𛁨𛁱𛁡𛁡𚐬𭀼𛠴𙠦𩡩𫁬𚁡𬡣𚁔𛁨𛁱𚰽𜰰𚡓𚁱𚠪𝀩𚰨𨠿𛐹𞐺𞐹𚐬𨐫🐮𜠫𛠱𚡓𚁱𚡱𚐬𨐩𚐻`.replace(/u../g,'')))

Sep 21 2019 4:34 PM UTC

}// 140/140

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Mountain ~ Inspired by https://codepen.io/kylewetton/full/oNvEXYM

u/DataMeta

#wallpaper

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