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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rnbw

function u(t) {

for(c.width+=i=0;++i<3e3;x.fillStyle=`#5`+i/10)x.fillRect(940+i*S(t*2+i/99*S(t/3+i/400))/i*300,540+i*C(t*2+i/99*S(t/3-i/400))/i*300,7,7)

Jan 27 2020 3:44 PM UTC

}// 136/140

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implicit boundaries

u/rnbw

i just realized that i could have cut down on this a little, there are a few unnecessary operations (like i/i spread across functions a few times)

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛁩🐲𩐴𛁩𚐬𫠽𜠵𛁢🐵𜀻𪐭𛐻𮀮𨱬𩑡𬡒𩑣𭀨𞐶𜀫𦀯𦠪𚁨🐵𝀰𚐬𪀫𦐯𦠪𪀬𬰽𝡥𜰯𦠯𦠬𬰩𚑻𪑦𚀨𩀽𣑡𭁨𛡨𮑰𫱴𚁘🐨𚁩𛱢𛱢𯀰𚐫𭀩𙐸𚠱𝀭𝐶𛁙👩𙑢𛑮𚰮𝐬𦠽𚁩𛱢𯀰𚐥𨠭𫠩𚐼𫠩𦀯👤𛱮𛁙𛰽𩀯𫠬𦠯👤𛱮𞱚𚰽𨡽`.replace(/u../g,'')))

Nov 9 2025 11:51 PM UTC

}// 137/140

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spherical margin

u/ximavus

WOAH!
u/jellyedwards

So cool!
u/magna

Gasp!
u/aleamb

oh!
u/AntiqueTurtle

I feel like this is a visual representation of how gravity works or dark matter. Very "physics". I love this one.

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Ghoust

function u(t) {

t?t%3>1?0:a=Math.random():a=0
b=t?b*.99+a*.1:0
t?x.strokeStyle=R(S(t/a*9)*255):c.width=99
x.stroke(new Path2D("m"+[45,26,S(b)*43,C(b)*24]))

Sep 8 2023 1:21 PM UTC

}// 139/140

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Tesseract

function u(t) {

w=window
for(i=0;i<100;i++){r=Math.random()*6&6
p=w.p/2+r*240|0
q=w.q/2+r%4*270|0
x.fillRect(p,q,1,1)}

May 22 2018 4:22 PM UTC

}// 102/140

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timakro

function u(t) {

eval(unescape(escape`𪑦𚀡𭀩𨠽𠠽𭠽𥠽𜀮𜐊𪀽𤰨𨠭𠠩𒡪👃𚁢𛑂𚐊𨠫👶𚰽𨐽𚀭𪀪𚁶𚡶𚡪𚱖𚡖𚐭𝑥𛐳𚠨𜠪𤰨𨠩𛑓𚁂𚐪𪠩𚐯𚀱𚱨𚠪𜠩𒡂𚰽𥠫👶𚡶𚡨𛑡𚡪𛐵𩐭𜰪𤰨𠠩𒡸𛡦𪑬𫁒𩑣𭀨𜠷𜀪𚁓𚁢𚐫𤰨𠠩𚐫𞐶𜀬𜠷𜀪𚁃𚁢𚐫𠰨𠠩𚐫𝐳𝐬𝐬𝐩`.replace(/u../g,'')))

Jul 27 2024 10:42 PM UTC

}// 129/140

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Double pendulum

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eskimofo

function u(t) {

c.width|=0;r=200
for(i=0;i<100;i++)
x.fillRect(960-C(2*t+i)*r,S(2*t)*r+i*20%100+580,10,10)

Dec 28 2017 5:13 AM UTC

}// 90/140

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u/Purpzie

Shortened by 6 characters: for(c.width|=i=0;i<100;)x.fillRect(960-C(2*t+i++)*200,S(2*t)*200+i*20%100+580,10,10)

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Makker1993

remix of d/21809 by u/rodrigo.siqueira

function u(t) {

c.width
x.fillStyle=R(5*t+10)
for(Z=-~t*2;Z--;)x.beginPath(),x.fill(x.arc(90*Z,T(Z+S(Z*t))*2*t/S(Z),40,0,S(Z)))

Mar 28 2021 7:37 PM UTC

}// 111/140

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rodrigo.siqueira

remix of d/32246 by u/mxfh

function u(t) {

with(x)for(t<5&&reset(),transform(X=25,0,1/C(167/t),X,960,600);X--;fill(new Path2D(`M-9 9 h${25+9/t**9} l-3-5 h-19.2`)))rotate(2.094)

Aug 14 2024 8:36 PM UTC

}// 133/140

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Corporate logo glitch

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rodrigo.siqueira

remix of d/14962 by u/katkip

function u(t) {

for(c.width|=j=36;j--;x.fillRect(0,900,2e3,2e3))for(i=3;i--;x.beginPath(x.fillStyle=R(i*99)))x.arc(i*900,1550,30*j,t*2+j,t*2+.4+j),x.fill()

May 3 2020 4:59 PM UTC

}// 139/140

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Adding water level and red color scale to the jumping fish. u/katkip's original is https://www.dwitter.net/d/14962

u/katkip

<3

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TGY

function u(t) {

for(i=1e3;t<7&&i--;x.fillRect(960+S(i)*q,(1200/t/S(t/9))+C(i)*q,9,9))q=(2+S(i*6))*t**3,x.fillStyle=R(a=20*t*S(t/5),a,t*a)

Aug 27 2021 8:07 PM UTC

}// 121/140

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forget-me-not

u/TGY

#windows11 version 😉