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/34182 by u/KilledByAPixel

function u(t) {

for(c.width|=i=9,x.font='4em monospace',x.rotate(699);i--;)x.fillText(code.slice(a=i*13,a+13),400,S(t)*300-1200+i*99)

Aug 7 2025 4:57 PM UTC

}// 117/140

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Default Quine Redux

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nikoloffgeorgi

function u(t) {

c.width|=a=20
o=200+S(t)*90
while(a--){
w=540+S(a+t*5)*o
e=(a-1)*o
x.quadraticCurveTo(a*o,w,(a*o+e)/2,(w+540+S(a-1+t*5)*o)/2)
}
x.stroke()

Sep 27 2019 3:40 PM UTC

}// 138/140

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romstr

function u(t) {

c.width^=0
x.font='200px A'
f=255
z=7
for(i=0;i<40;i++){
x.fillText('🐾',i%z*f,i/z*f)
x.fillStyle=R(f,f,f,S(t/2+i%z+i/50))}

Jan 12 2018 5:18 PM UTC

}// 123/140

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karacasoft

function u(t) {

if(t==0)x.translate(c.width/2,c.height/2)
x.rotate(0.0513)
a=S(t/3)*255
x.fillStyle=R(a,0,0,1)
x.fillRect(500+S(t)*500,400 + S(2*t)*400,9,9)

Apr 26 2018 2:13 PM UTC

}// 140/140

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kodierer

remix of d/7940 by u/kodierer

function u(t) {

for(i=0, i <10, i++){
c.width=1920 // clear the
x.strokeText ('Martin', 800, 600, 80000*i)}

May 4 2018 4:24 AM UTC

}// 91/140

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Pascal

remix of d/21705 by u/tomxor

function u(t) {

eval(unescape(escape`𩡯𬠨𮁛𩠽𙱦𪑬𫁒𩑣𭀧𧐨𜀬𜀬𨰮𭱩𩁴𪀽𜐸𜀬𪐽𫀽𜐵𜰰𚐻𪐭𛐻𮁛𩡝𚁘𚠶𛁙𚠶𛀶𚱋𛀶𚐩𦀽𪐥𜰰𛁙🐨𪐭𦀩𛰳𜀬𠐽𦀫𞀪𠰨𭀪𜠭𦐯𞀰𚐬𢰽𘐡𚁁𛰱𞀭𜐶𛰱𞁼𦐯𝀭𜐰𛰵𯁁𚰲𙠲𚐯𜠬𮀮𩡩𫁬𤱴𮑬𩐽𨁨𬱬𚀲𜐰𘀵𜀥𙁻𜐸𜀪𢰫𜰪𠰨𦐭𭀪𞀰𚑽𙑠`.replace(/u../g,'')))

Feb 19 2021 3:03 PM UTC

}// 136/140

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interlacing

u/Pascal

just realised that this is progressive and not interlaced
u/magna

#default

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donbright

remix of d/1863 by u/SpecialAgent

function u(t) {

c.width=1024;w=64;for(i=w*w;i--;)X=i%w,Y=i/w>>0,P=128*((1-t*t)*X*X/(1+t*t)+2*t*Y*Y/(1+t*t)),x.fillRect(200+X*10,Y*10,P%11,P%11)

Mar 11 2017 2:03 AM UTC

}// 129/140

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No Sine or Cosine were harmed in the making of this demo. It is not random - and if it runs long enough it should theoretically become a still image

u/sfz

Those ripples are tripping me out
u/donbright

note to future self - this varies from x*x + y*Y to x*x-y*y (circle to hyperbola) by using the rational parameterization of the circle with one variable parameter, where (1-t**2)/(1+t**2) is an alternate to cosine and 2t/(1+t**2) is an alternate to sine. (or vice versa i forget lol)
u/magna

Awesome!
u/z3vin

So cool

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PoneyToutFlamme

function u(t) {

c.width=1100;
for(i=0;i<100;i++)
for(j=i;j<100;j++)
x.fillText('🦄',(c.width)*C(i*(t/60)),(c.height)*C(j*(t/60)))

Dec 31 2019 12:02 PM UTC

}// 112/140

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🦄

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New_Core

function u(t) {

A="New Core"
eval(unescape(escape`𭰽𨰮𪁥𪑧𪁴🐲𩐳𒡸𛡦𪑬𫁔𩑸𭀨𠐬𜀬𭰩𒡦𫱲𚁩🐴𝐻𪐭𛐻𮀮𩁲𨑷𢑭𨑧𩐨𨰬𪐬𭰭𞐬𜐬𞐬𜀬𜰰𜀫𞐹𚡃𚁴𚠳𚱩𛰨𤰨𭀪𜠩𚰹𚐩𛀲𜐬𜐵𜀩𚑸𛡳𩑴𥁲𨑮𬱦𫱲𫐨𨐽𤰨𬐽𭀫𪐯𜰰𚐬𨠽𠰨𬐩𛀭𨠬𨐬𞐶𜀬𝐴𜀩`.replace(/u../g,'')))

Dec 9 2025 11:18 PM UTC

}// 134/140

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u/UEZ

nice! - #demo #scroller

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vinca

function u(t) {

for(c.width|=0,j=20,t*=.3;j--;){for(x.beginPath(),i=6;i>0;i-=6/99)r=99*S(9*i)+40*j,x.lineTo(1e3+r*C(i+j*S(t)),500+r*S(i+j*S(t)));x.stroke()}

Mar 22 2019 12:40 PM UTC

}// 140/140

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