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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prplz

remix of d/10091 by u/prplz

function u(t) {

for(let X,Y=33,r;Y--;)for(X=59;X--;x.fillRect(X*33,Y*33,33,33))x.fillStyle=R(0,r=S((X*X&Y*Y)**.3+t*5)*99+99,r*2)

Oct 3 2018 7:14 AM UTC

}// 112/140

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u/DataMeta

Mhmmm
u/donbright

fun

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Froff

function u(t) {

e=u.toString();b=Math.floor;a=b(9*t);x.fillText(e.charAt(a),a*96%1920,(b(a/20)+1)*99);x.font='99px A'

Mar 16 2016 11:05 AM UTC

}// 101/140

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u/BirdsTweetCodersDweet

Whoa... meta!

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username

function u(t) {

with(x){beginPath()
for(shadowBlur=i=0000000042;i--;shadowColor=`hsl(${T(t)*i*99},99%,50%`)lineTo((a=()=>2e3*Math.random())(),a()),stroke()}

Apr 8 2019 5:00 PM UTC

}// 140/140

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00000000

u/f8f82804

#shadowcolor

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hoblay

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 */

Oct 8 2017 10:10 PM UTC

}// 127/140

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u/lionleaf

b
u/Xen

c.width|=d=9e9

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katkip

remix of d/25483 by u/katkip

function u(t) {

c.style.filter=`invert(`,t||(X=Y=0)
for(i=999;i--;X%=5,Y%=3)x.fillRect((X+=T(Y/14)-T(X/22)/22)*1270,400+(Y+=C(X-S(Y-X)))*(79+t**49),1,1)

May 12 2022 11:33 AM UTC

}// 136/140

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#space

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Agnes

function u(t) {

c.width+=i=0;s=~~t;for(;i<3;x.lineWidth=9+9*i++,w=500/i,s/=i<3?60:12,k=-6.283185*s,x.stroke(new Path2D(`M960 540l${-S(k)*w}
 ${-C(k)*w}`)));

Jan 31 2018 9:01 PM UTC

}// 140/140

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Replace "t" by "(new Date()).getTime()/1000" for real time. No idea how to reduce the rest by that much though.

u/Agnes

Also, the approximation of -2*pi is bad and probably de-syncs the clock after a couple of days.
u/fourier.space

Just like a real clock would!
u/iverjo

#clock

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rodrigo.siqueira

remix of d/12037 by u/thorbear

function u(t) {

u=v=t,a=b=.2*S(t)+1.2,c=.7,s=250,x.globalAlpha=.2;for(i=4e3;--i;)w=S(a*v)-c*C(a*u),v=S(b*u)+C(b*v),u=w,x.fillRect(650+s*u*2.5,880+v*s*2,1,1)

Feb 1 2019 6:56 PM UTC

}// 140/140

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Brushstroke (Hassan Massoudy style). #attractor

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metamero

function u(t) {

eval(unescape(escape`琿砮汩湥呯⡭⬽瀫㵡⼽搽⡡⩡⽫⭢⩢⽫⤪⨱⸵Ɱ⬽焫㵢⽤⤺⡭㵮㵘㵫㴹㘰ⱙ㴵㐰Ⱬ⨽焽㈬瀽㔮㤬潮捬楣欽攽㹸⹦楬汒散琨堽⡙㵫⽩湮敲坩摴栩⩥⹸ⱙ⨽攮礬㠬㠩Ɐ湤扬捬楣欽牥獥琩㭡㵘⵭Ɫ㵙⵮ⱸ⹳瑲潫攨⤻`.replace(/u(..)/g,"$1%")))

Jan 10 2019 2:09 PM UTC

}// 139/140

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now correct #gravity formula : #orbit #physics #interactive : click to set atractor : double click to reset

u/metamero

all of my previous #orbit dweets are not #gravity , please refer to this version for the right formula (gravity ∝ 1/||r||**3)

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lewdev

function u(t) {

c.width|=0;x.font="2in'";p=400
x.translate(p*S(t)+960,p*C(t)+p+99)
x.rotate(-t+1.3)
x.textAlign="center"
x.fillText("🛨",0,50)
x.restore()

Jul 15 2025 1:45 AM UTC

}// 137/140

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🛨 Flying in a circle

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Permille

remix of d/24197 by u/Permille

function u(t) {

eval(unescape(escape`󩥯󬤨󨴮󭵩󩅴󪄽󜥥󜴬󮔽󯤨󨔽󦵺󟕩󟔰󛅤󟕚󟔹󝥝󚔬󦔽󝔴󞵩󟅤󞵛󮤬󮕝󟕛󮔬󛕺󧔬󮤦󙥩󚴫󚕦󫵲󚅫󟕩󛅳󟔰󞵫󛔭󞴡󬵼󬴦󭄿󮄮󩥩󫅬󤥥󨵴󚅚󚤹󛅙󚤹󛄹󛅡󦵭󧔽󞔩󞤰󛅚󛔽󮤬󦔫󟕹󚕦󫵲󚅰󟔲󞵾󬄭󛔻󚕦󫵲󚅱󟔴󞵭󟕚󚥤󚵙󛅾󬔭󛔻󚕳󚴽󜅼󨕛󬄪󩄫󬔫󫕝`.replace(/uD./g,'')));

Oct 22 2021 6:43 PM UTC

}// 135/140

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Changing patterns