Dweets awesomed by u/danny@hille.dk

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

function u(t) {

A=_=>T=S(T*7)||1
B=_=>R=(R*9||.9)%1
for(i=2e3;i--;)x.fillRect(i,t*60,i-960?i<960?A():B():9,1)

Oct 18 2023 4:26 PM UTC

}// 93/140

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Two Randoms - demo of two tiny ways to generate random numbers

Show more comments…
u/danny@hille.dk

Cool, but both A and B uses a global method (tan or rgb), besides B is the same length as D=_=>Math.random()
u/rodrigo.siqueira

I understand that in this case, A and B are short methods used to obtain predictable (deterministic) results from a pseudo-random number generator (PRNG), unlike the Math.random() method.
u/KilledByAPixel

A uses Math.sin to get values between -1 and 1, B just uses % and returns between 0 and 1. Both have some artifacts but are random enough for many things.
u/KilledByAPixel

danny, you can't control the seed to Math.random() that makes it unusable for many applications. These do use dwitter defines but also can work just as well without, especially method B.
u/Joachim

Interesting... the left seems too uniform while the right looks slightly horizontaly biased. I think B() will be the most helpful for me, thanks!
u/danny@hille.dk

ooooh nice! Thanks for breaking that down 4 me :-)
u/rodrigo.siqueira

Warning: R=0.5; R=(R*9||.9)%1; // In this seed case (R=0.5), the result will always be 0.5 (it's fixed point, "a value that does not change under a given transformation").
u/cantelope

#RNG

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KilledByAPixel

function u(t) {

eval(unescape(escape`󭽩󭍨󚍸󚝦󫽲󚍪󟜰󞽪󟌲󝌻󬽴󬭯󪽥󤽴󮝬󩜽󨍨󬽬󚌤󮼲󝌰󛝪󚬱󜭽󘌹󞌥󙍻󪬫󚼦󙬶󜽽󙝠󛍢󩝧󪝮󤍡󭍨󚍳󭍲󫽫󩜨󚜩󚝦󫽲󚍬󪝮󩝗󪝤󭍨󟝪󟼱󞜺󜽥󜼬󪜽󞜹󞽩󛜭󞽬󪝮󩝃󨝰󟜧󬭯󭝮󩌧󚝬󪝮󩝔󫼨󞜶󜌭󪬪󜬶󚭃󚍡󟝩󛼶󜬪󚌱󚽓󚍪󛼴󛬷󚼲󚭴󚜩󚜬󞌰󜌭󪬪󜬶󚭓󚍡󚜩`.replace(/u../g,'')))

Oct 10 2023 5:25 PM UTC

}// 138/140

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Semi-Circle Wave - inspired by https://www.shadertoy.com/view/cstBzn

u/KilledByAPixel

also https://openprocessing.org/sketch/152169
u/vain

cool remake of the shadertoy version. i really like it.
u/Joachim

Impressive

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dodecahedron

function u(t) {

c.width+=0
x.beginPath()
for(i=j=~~t+2;i--;x.lineWidth=10)x.lineTo(900+400*S(o=2*3.14/j*i),500+400*C(o))
x.closePath()
x.stroke()

Oct 10 2023 3:07 PM UTC

}// 129/140

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Shapes and Shapes and Shapes

u/danny@hille.dk

it you want a filled Ngon you can golf it a bit more for(c.width|=i=j=t+3|0;i--;x.fill())x.lineTo(900+400*S(o=6.28/j*i),500+400*C(o))

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rodrigo.siqueira

remix of d/28667 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
for(a=b=t,i=2e4;i--;a+=(i*t/b&1)*3.2-b*S(a*4)/6-a*a/4.3,b=b/2-C(a*3.1))x.fillRect(5980-a*9e3+b**4*i,500-b*2e3,.1,1)

Oct 10 2023 1:19 PM UTC

}// 140/140

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Emergence of fractal flowers #organic #plant

u/Joachim

True #art
u/magna

Incredible
u/cantelope

wow nice depth effect

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rodrigo.siqueira

remix of d/28665 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
for(a=b=t,i=9e3;i--;a+=(i*t/b&1)*3.2-b*S(a*2)/4-a*a/4.2,b=b/2-C(a*2.91))x.fillRect(4e3-a*7e3+b**3*i,510-b*2e3,.2,1)

Oct 10 2023 11:28 AM UTC

}// 140/140

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Reflections of fractal leaves 3

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Agnes

remix of d/11695 by u/Agnes

function u(t) {

for(Q=c.width|=i=9,x.scale(50,50);i--;x.rect(8+2*i+6*S(t),8,1,4));for(x.clip();Q--;x.fillText("👻",S(I=Q+t)+I%38,C(Q)+I%21))x.font="2px A"

Oct 9 2023 9:51 AM UTC

}// 137/140

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Haunted #default #scarymovies

u/Xen

nice!!!
u/andrea270872

Boo! Lovely

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lewdev

remix of d/28363 by u/lewdev

function u(t) {

eval(unescape(escape`瑼簨瀽孝Ᵽ⹷楤瑨㵷㴳㈰ⱪ㵬㴾砮晩汬却祬攽氬爽䵡瑨⹲慮摯洩੪怣〰〰〰〵总砮晩汬剥捴⠰ⰰⱷⱷ⤊景爨椽㌹㭩ⴭ㭪怣うだⱰ孩崽社眦♲⠩㸮㤿〺⡰孩嵼〩⬱⥸⹦楬汔數琨繾⡲⠩⨹⤬椪㤬礽灛楝⨹⤠`.replace(/u([^D].)/g,'$1%')))

Oct 8 2023 2:25 AM UTC

}// 139/140

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#Matrix Rain with #numbers (code golfed)

u/lewdev

#matrix #rain

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cantelope

remix of d/28606 by u/rodrigo.siqueira

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛁷🐲𞀰𜀬𭰩𛁸𛡦𪑬𫁓𭁹𫁥🐧𘰴𜁦𞀧𒡦𫱲𚁡👢👴𛁩🐵𩐴𞱩𛐭𞱡𚰽𚁩𚡴𛱢𙠱𚐪𜰭𨠪𤰨𨐪𜰮𞐩𛰷𛑡𚡡𛰴𛠰𜐬𨠽𨠯𜐮𝠭𠰨𨐪𜰮𜐩𚐊𮀮𩡩𫁬𤡥𨱴𚁢𚠱𜐰𜀫𜐱𜀰𛀱𜀸𜀭𚁷𛑡𚠵𜰰𜀫𨠪𜰰𜀩𛀮𜐬𜐩`.replace(/u../g,'')))

Oct 7 2023 7:46 PM UTC

}// 131/140

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spooky tree remix

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danny@hille.dk

remix of d/28625 by u/Xen

function u(t) {

for(c.width|=j=60;j--;)for(i=9,x.font=`${160-j*2|0}px'`;i--;)x.fillText("🐲",80+i*(200-j*3)+j*16+S(t*3-j/6+i/3)*90,290+j*16+C(t-j/9-i)*99)

Oct 7 2023 4:02 PM UTC

}// 137/140

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Dragon dancer #default hydra remix

u/Xen

oooosh! love it bro!

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Xen

remix of d/28608 by u/384.cz

function u(t) {

for(c.width|=i=6,x.font="9cm'";i--;)x.fillText("📱",99+i*250+S(t)*99,580)

Oct 6 2023 4:04 PM UTC

}// 72/140

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slight play

u/danny@hille.dk

love it! why not make it a "snake default" for(c.width|=j=40;j--;)for(i=9,x.font="6cm'";i--;)x.fillText("📱",i*210+S(t*3-j/6)*99,580+j*16)

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