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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Current theme challenge: #Food

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superfun

function u(t) {

if(~~(t*60)%180==0){
c.width=400
r=Math.random()*255
for(i=r;i<r+100;i++){
x.font=i+'px serif'
x.strokeText(String.fromCharCode(r),i,i)
}
}

Dec 27 2017 10:19 PM UTC

}// 139/140

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ximavus

function u(t) {

for(i=60;i--;){d="VannaZZZZZZZZZZZZZZZZZZpzzzzzzzzzzzp     ZbgggggbZ".charCodeAt(i);x.fillStyle=R(v=d/.6,v,v);x.fillRect(i*32,540-d,32,2*d)}

Nov 17 2025 12:31 PM UTC

}// 140/140

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Yes! Ray casting! change the d variable to change the world (encoded in char codes)

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danny@hille.dk

remix of d/25563 by u/danny@hille.dk

function u(t) {

c.width=800;x.translate(400,225)
for(i=60;i--;)x.fillStyle=`hsl(${i*6},99%,50%)`,x.fillRect(0,119,9,99+S(t*3+i*61)*9),x.rotate(.105)

May 28 2022 6:19 PM UTC

}// 132/140

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Spectrum analyzer remix

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f8f82804

remix of d/9512 by u/f8f82804

function u(t) {

r=Math.random;for(i=2e3;i-=2*r()|0>0;t||x.strokeRect(-32,-32,64,64))x.setTransform(s=r(),0,0,s,60*(i%17+8),60*(i/17%17+1|0)),x.rotate(r()/9)

Aug 29 2018 3:59 PM UTC

}// 140/140

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A #tribute to _(Dés)Ordres_ -- Vera Molnár, 1974

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veubeke

function u(t) {

t*60&7||[0,0,0,d=1,c.width=200,,,].map((v,i,p)=>p[4+i]=p[i%2||x.fillRect(95+v*9,9+p[i+1]*9,8,8),2+i]+(i%2?2-d:(d+=Math.random()*4-2|0)-1)%2)

Sep 27 2017 9:27 PM UTC

}// 140/140

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Joachim

function u(t) {

eval(unescape(escape`󛼯󛜭󛼯󒭺󟝣󛭷󪝤󭍨󟜳󜌰󒭸󦽳󟜧󩭩󫍬󤽴󮝬󩜧󧜽󙽲󩝤󙼊󮌮󩭩󫍬󚍸󛭡󬭣󚌱󝬰󛌵󝬬󜜳󛌰󛌷󚜩󒭦󫽲󚍩󟝺󞽩󛜭󞽸󛭦󪝬󫍒󩝣󭌨󚍩󚽴󚬹󞜯󪜩󙜲󜌪󜬰󛝺󛽩󛌱󞌰󛍺󛽩󧬴󛌭󪜥󤼨󪜩󚬱󝌰󚜩󮍛󬽝󟜧󘽦󩭦󜜧󛍸󛭦󪝬󫍒󩝣󭌨󜌬󤼨󛝴󛼴󚜪󜼰󚽩󧬴󛍺󛍩󚜬󮍛󬽝󟝒󚌩`.replace(/u../g,'')))

Dec 23 2021 2:04 PM UTC

}// 140/140

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Mist city

u/tomxor

Neat effect
u/danny@hille.dk

Nice!
u/danny@hille.dk

Minor tweak idea ->x[s='fillStyle']=R(z=c.width=300);x.fill(x.arc(p=150,S(t/9)*20+30,13,0,7));for(i=z;i--;x.fillRect((i+t*66/i)%20*20-z/i,160,z/i|8,-i%S(i)*p))x[s]='#fff1',x.fillRect(0,S(-t/4)*30+i^4,z,i),x[s]=R()
u/Joachim

Thanks, Thats much better. I never thought of defining the width INSIDE the color

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BackendForth

function u(t) {

c.width=1920
w=500
for(i=999;i--;)
x.fillRect(960+T(i/99+t)*w*C(t)+C(i)*w*S(t),540+w*S(i),9,9)

Jan 22 2018 3:37 AM UTC

}// 94/140

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recursive

function u(t) {

with(x)fillStyle=R(z=2e3,z,lineWidth=150,.015),fillRect(0,0,z,z),beginPath(),arc(960+C(t*2)*480,540+S(t)*270,t%4*400,0,7),stroke()

Mar 8 2017 1:42 AM UTC

}// 130/140

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u/donbright

this is so weird
u/iverjo

It's some kind of tunnel :D
u/donbright

i though it was worms bursting out of each other

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KilledByAPixel

function u(t) {

with(x)t||translate(769,40,R=1e3),beginPath(lineWidth=9),arc(0,0,R,0,1.6),rect(0,0,R,R),stroke(),translate(0,R-(R/=1.618)),rotate(1.57)

Jan 9 2023 6:01 AM UTC

}// 135/140

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Golden Spiral

u/cantelope

superb!
u/danny@hille.dk

Nice! I tried sonting similar, some time ago, but could not golf it and still make it look good -> this is how far i got (uncompressed): with(x)t||(a=[1,1],translate(960,540)),a.push(o=a.at(-2)+a.at(-1)),strokeRect(0,0,o,o),arc(0,o,o,4.7,0),translate(o,o),stroke(),rotate(1.57)

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nystrand

function u(t) {

eval(unescape(escape`𪐽𝠻𩡯𬠨𭠠𫱦𦰴𜰶𛀲𜰷𛀲𜰷𛀴𝰴𛁣𛡳𭁹𫁥𛡦𪑬𭁥𬠽𘡢𫁵𬠨𜡶𪀩𘠬𝀶𝁝𚑦𫱲𚁙🐶𜀰𛑩𛐭𚠵𜀬𩀽𦀽𜀬𪠽𜰱𜀻𨠽𘐡𭠪𝐱𝀰𝀸𚱶🠾𚁪🠾𝀩𙠱𛁪𛐭𞱸𛡦𪑬𫁒𩑣𭀨𦀫👢🰵𞠲𛁙𚰽𘑩𙠦𪠽🐲𝰰🰴𜀺𛑤𛀹𚡢𛀵𝰩𚑤👪🀱𞐴🱩𛰲𛐱𛠵𞠡𪐦𙡪🀲𝰰`.replace(/u../g,'')))

Mar 7 2021 6:14 PM UTC

}// 139/140

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#fracture #hand #xray

Show more comments…
u/danny@hille.dk

:-)
u/KilledByAPixel

👍
u/magna

whoa
u/Qwitter

ouch
u/DataMeta

brilliant
u/nystrand

Golfed a bit, and inverted colours
u/nystrand

[464,c.style.filter="blur(2vh)invert(",474,237,237,436].map((v,i)=>{for(Y=600-i*50,X=0,j=310;b=514048+v>>j/16&1,j--;x.fillRect(X+=b?5:2,Y+=!i&j==270?40:-d,9*b,57))d=j<194?i/2-1.5:!i&&j<270})
u/vain

very cool