Dwitter - javascript demos in 140 characters

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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kian

remix of d/21921 by u/kian

function u(t) {

c.style.filter=`invert(`
w=c.width=99
for(var i=1e3;i--;x.fillStyle=R(0,i,6<<i))x.fillRect(X=i*(t)%w,Y=6+(i*1)/w-T(X/t)*7,C(w*i^X),t/X)

Mar 12 2021 6:11 PM UTC

}// 135/140

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microscoptic view of cell, bad recording

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erin

remix of d/21896 by u/Xen

function u(t) {

for(i=2e3,c.width=w=60;i--;)x.fillRect(X=i%w,Y=i/w,S(t^Y&X),1)

Mar 11 2021 3:29 AM UTC

}// 62/140

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Sierpinski Slideshow

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rodrigo.siqueira

remix of d/21877 by u/danny@hille.dk

function u(t) {

c.style.filter=`invert(`
w=c.width=200
for(var i=5e3;i--;x.fillStyle=R(0,i,i))x.fillRect(X=i%w,Y=89+i/w-T(X+t)*8,C(i*i^X)*8,.3)

Mar 12 2021 4:12 PM UTC

}// 127/140

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Hell's fire #fire

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Xen

remix of d/21909 by u/magna

function u(t) {

onmousemove=e=>{X=e.x/(R=c.offsetWidth/Z);Y=e.y/R};for(Z=c.width|=i=9;i--;)x.fillRect(i*99+X+S(t)*300,Y,50,200)

Mar 12 2021 2:40 PM UTC

}// 111/140

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Had to be done lol, Shoutz 2 Magna & V, CGT.js

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kian

remix of d/21915 by u/kian

function u(t) {

for(i=2e3;i--;)x.fillStyle=R(s=t%7*i,x.fillRect(1e3+C(p=t/99+i)*S(t)*s*t,540+S(p)*S(t/4)*s*t,4,4),s%i*t,.4)

Mar 12 2021 12:51 PM UTC

}// 107/140

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kian

remix of d/21875 by u/erin

function u(t) {

for(i=1e4,c.width=w=128;i--;x.fillRect(X-1,Y,1,1))x.fillStyle=R(X=i%w+T(t**.07),((Y=i>>7)&X*X&Y*S(X+Y+t))*w,C(t)*85)

Mar 10 2021 9:41 PM UTC

}// 116/140

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tightening and loosening the matrix

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danny@hille.dk

remix of d/21882 by u/Xen

function u(t) {

for(i=678,c.width=w=32;i--;)x.fillRect(X=i%w,Y=i/32,T(Y-t*9^X),1)

Mar 10 2021 8:34 PM UTC

}// 65/140

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chain remix - ultra lo-res in only 65 bytes

u/danny@hille.dk

'Exactly like playing zelda, on an old black and white telly :-P
u/danny@hille.dk

if you want a less glitchy version => for(i=678,c.width=w=32;i--;)x.fillRect(X=i%w,Y=i>>5,T(Y-t*9^X),1) #I❤️glitches

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intrinsic

function u(t) {

c.width=1920
for(i=1e3,z=960,y=540,d=0;i--;d+=S(i|1e3|i/400|i/40)+S(t/99))
  x.fillRect(z+=C(d)*4,y+=S(d)*4,4,4)

Mar 8 2021 4:55 AM UTC

}// 112/140

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Twisted #fracture

u/intrinsic

Forked from openprocessing.org/sketch/1126346
u/MAxSaL

It looks like a protein
u/rajiv

What "e" denotes to?
u/KilledByAPixel

1e3 is scientific notation, it means 1*10^3 aka 1000

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Xen

remix of d/21877 by u/danny@hille.dk

function u(t) {

for(c.style.filter='contrast('+(i=(c.width=w=frame/2%69)*98);i--;x.fillRect(X,Y,1,1))x.fillStyle=R(m=S((X=i%w)^t*i/w+(Y=i/w*.5))*i,m/3,i^m)

Mar 9 2021 9:55 PM UTC

}// 139/140

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just a thing, also a remix

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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