Random dweets | Dwitter

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.

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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!

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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
u/ximavus

maybe we can use a hybrid 5-6 bits? like any char index that is even is 5 bits and every odd one is 6. Don't know if this would fit and I have no idea for compressors

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KilledByAPixel

remix of d/22480 by u/KilledByAPixel

function u(t) {

with(x)for(i=h=c.height|=0;i--;fill(arc(X=i*(i+t)%3e3-600,C(i)*h,i?h/i:1e4,0,7)))beginPath(globalCompositeOperation='xor')

Apr 14 2021 11:59 PM UTC

}// 122/140

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Backspace 🌒

u/sigveseb

noice!

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karacasoft

function u(t) {

c.width=1e3
for(j=0;j<6;j++)for(i=0;i<33;){
x.fillStyle=`hsl(${C(t-i/8-j/8)*50},99%,60%)`
x.fillRect(i*30,j*99+25*C(t+i),25,70+25*S(t+i++))}

Apr 27 2018 9:51 AM UTC

}// 140/140

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function u(t) {

w=c.width/8;h=c.height/2;
p=T(t+2)*99;P=T(t)*10;
x.fillStyle=R(p,p/3,p,.05);
x.font=w+"px Arial";x.fillText("    Hello Dwitter",P,h+P);

Jul 21 2020 2:45 AM UTC

}// 135/140

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Hello Dwitter

u/IV

#text

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HardlyProductive

function u(t) {

for(x.reset(r=999);r--;)for(a=25;a--;){
p=960;f=(m)=>{l=m*(r**2/p);x.fillRect(p+r*S(a+m*t)+l*C(a),p/2+r*C(a+m*t)-l*S(a),3,3)}
f(1)
f(-1)}

Sep 27 2024 7:17 AM UTC

}// 137/140

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trying for a mandala

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mxfh

remix of d/23551 by u/mxfh

function u(t) {

I=new ImageData(w=2048,w)
b=new Int32Array(I.data.buffer)
for(i=3e6;i--;b[i]=(i-Y&Y+i)*-t/i%i<<22)Y=i*w
x.putImageData(I,0,0)

Aug 15 2021 2:06 AM UTC

}// 125/140

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https://www.dwitter.net/d/23557 so with some space for setting up other buffer view, it speeds things up when treating rgba Uint8Clamped Array as single 32bit value

u/mxfh

wondering if we could store that buffer somwhere to do truly iterative fractal stuff
u/taupelink

trippy!

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magna

remix of d/22870 by u/rodrigo.siqueira

function u(t) {

eval(unescape(escape`睩瑨⡸⥻景爨眽挮睩摴桼㵣⹳瑹汥⹦楬瑥爽恩湶敲琨怬獴牯步却祬攽晩汬却祬攽刨眬〬眩㭷ⴭ㬩汩湥呯⡷ⰵ㐰ⵃ⡦牡浥⽷⭴⤪眥匨眯㌲⵴⤪㈵〪匨琫眯㌸⤩ⱦ楬汒散琨〬䵡瑨⹲慮摯洨⤪⨴⩷ⱷⰮㄩ㭳瑲潫攨⥽`.replace(/u(..)/g,"$1%")))

May 26 2021 11:00 PM UTC

}// 139/140

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Oscilloscope edition

u/magna

#glitch
u/tomxor

Nice #oscilloscope

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SubZtep

function u(t) {

q=Math.floor(t),t-q<.2&&(c=Math.floor(255*Math.random()),x.fillStyle=R(c,c,c,1),x.fillRect(25*q,440,1920,Math.floor(200*Math.random())+99));

Feb 22 2017 3:42 PM UTC

}// 140/140

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lewdev

remix of d/32617 by u/tomxor

function u(t) {

for(c.width&=i=10368;a=i<9,--i;)x.fillRect(a?25+i*9+S(t)*20:i&127,a?27:i>>7,a?5:i**5/t%9/9,a?20:1)

Oct 25 2024 11:16 PM UTC

}// 98/140

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🏆 TV Static Champion with #default

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ciaccodavide

function u(t) {

if(!t)for(w=2e3,i=w*w;i--;){a=b=k=0,n=30
while(d=a*a+b*b<=2&k++<n)e=a,a=a*a-b*b+(X=i%w)*3/w-2,b=2*e*b+(Y=i/w)*3.7/w-1
x.fillRect(X,Y,1,k/n)}

Oct 24 2021 5:30 PM UTC

}// 140/140

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oneshot #mandelbrot

u/sigveseb

#waitforit