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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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baon

remix of d/29406 by u/baon

function u(t) {

for(c.width|=i=3;i--;)
a=t*5+i/2,x.arc(960+400*C(t+1*C(t/2-C(a/2+C(t*9)))),540+50*C(a),9*(S(a/2)*3+i*20+7),0,7)
x.fill`evenodd`

Feb 3 2024 2:18 AM UTC

}// 127/140

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eyeball movement

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UEZ

function u(t) {

eval(unescape(escape`󭽩󭍨󚍸󚝦󫽲󚍣󛭷󪝤󭍨󯌽󜌬󩭯󫭴󟜢󜭰󮌠󠝲󪝡󫌢󛍳󪍡󩍯󭽂󫍵󬬽󞜹󛍳󪍡󩍯󭽃󫽬󫽲󟜢󘼰󜌰󘬬󪜽󝼻󪜭󛜻󩭩󫍬󥍥󮍴󚌢󩍷󪝴󭍥󬬢󦽩󧜬󜌬󞌩󚝳󩝴󥍲󨝮󬽦󫽲󫜨󞜹󛌰󛌰󛌹󞜬󞜶󜌬󜜵󜌩󛍲󫽴󨝴󩜨󤼨󪜯󜬭󭌩󚜬󩭩󫍬󤭥󨽴󚌭󜜬󜌬󜼬󞜩󛍣󫍥󨝲󤭥󨽴󚌭󜜬󜌬󜼬󞜩`.replace(/u../g,'')))

Oct 29 2026 1:36 PM UTC

}// 140/140

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Dwitter Card Swing

u/cantelope

#rettiwd

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WorldMerge

function u(t) {

for(i = 0; i<50; i++){
x.fillStyle = 'rgb('+C(t)*300+','+S(t)*300+','+C(t)*i+')';
x.fillRect(i*S(t)*300,C(t),i*20,i*20)
}

Mar 14 2020 3:55 PM UTC

}// 122/140

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My first post on Dwitter!

u/sigveseb

Nice!
u/katkip

Welcome!
u/WorldMerge

Thank you u/sigveseb and u/katkip!

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Xen

remix of d/1504 by u/innovati

function u(t) {

for(i=1e4;i--;x.fillRect(i,i/t,i/t,t)){x.fillStyle='hsl('+i*i+',99%,50%)'}

Jul 19 2017 6:28 PM UTC

}// 74/140

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u/innovati

Beautiful 🌈
u/Xen

Thank you, Plasma pillars :D

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rodrigo.siqueira

remix of d/32916 by u/rodrigo.siqueira

function u(t) {

X=Y=0
G=_=>X*X/(.1+X*X)-X*.4
for(I=4e4;I--;x.fillRect(944+X*99,605+Y*99,.2,t<1))Z=X+.3,X=Y+G()/1.03+Y/90-Y**5/2e4,Y=G()/.7+S(t)/35-Z

Dec 17 2024 5:25 PM UTC

}// 132/140

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Gumowski-Mira Mythic Bird (3-winged variation) #wings

u/cantelope

incredible!

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alice-mx

function u(t) {

x.beginPath();
q=t*50%500
x.fillStyle=`hsl(${t*15%360},50%,50%)`;
x.arc(C(q/5)*q+960, S(q/5)*(q)+540, 2+q/25, 0, 7);
x.fill();

Oct 31 2018 3:00 AM UTC

}// 127/140

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remix of d/34722 by u/rodrigo.siqueira

function u(t) {

eval(unescape(escape`挮獴祬攮晩汴敲㵠楮癥牴⡠ഊ景爨𝕏㵘㵙㵩㴴攴㭩ⴭ;𝕏㵘ⱸ⹦楬汒散琨太ㄶ㌰⬹㘰ⱘ⨱㐸〬琼㈬⸱⤩堽吨堪堭太天⬮㌬夽吨㈪𝕏⩙⬮ㄫ匨琯椫椫䌨椥㈩⤯㈪匨琩⤥⸵㤠`.replace(/u([^D].)/g,'$1%')))

Jul 12 2026 5:06 AM UTC

}// 125/140

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tomxor

remix of d/23968 by u/KilledByAPixel

function u(t) {

for(X=t?X+r*50:0,i=h=11+6*C(t*4+X%1)<<5;--i;x.fillRect(...t?[X-r*i/4,600+(r*8&3?i-h:h-i),i/4,2]:[i*8,r*999,h,r]))r=Math.random()

Oct 2 2021 12:56 PM UTC

}// 128/140

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Smolr Tree Lake

Show more comments…
u/tomxor

A nice round 2**7 chars. A bit of bitwise, ternary trimming and coefficient concessions
u/KilledByAPixel

nice! I'm surprised you didn't get rid of the Math.random()!
u/yonatan

nice golf, r=(t+i)**3.9%1 works too
u/tomxor

Yeah I was surprised to, I think this one is a bit more sensitive to bad distributions. Yonatan's is pretty good though.
u/pavel

X=t?X+r*50:0 -> X=t&&X+r*50
u/pavel

r=++t**3.9%1 saves 3 chars
u/pavel

Ah, no, it kills the sky/water.
u/KilledByAPixel

i feel it is possible to somehow golf the random part by at least a byte but I still haven't found a way without major issues
u/pavel

for(X=t&&X+r*25,i=h=11+6*C(t*4+X%1)<<5;--i;x.fillRect(...t?[X-r*i/8,600+(r*8&3?i-h:h-i),i/4,2]:[i*8,r*600,h,r]))r=1+S(i^X)
u/pavel

122
u/KilledByAPixel

I knew you could do it pavel!
u/aleamb

beautiful!!

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atgz

remix of d/9984 by u/New_Core

function u(t) {

x.fillRect(0,0,d=2e3,d)
for(i=700;i--;x.fillRect(960+(b=t*i--%1e3)*C(a+t),540+b*S(a+t),9,9))x.fillStyle=`hsla(${a=d*T(i/1e4)},99%,${i}%,.4`

Sep 21 2018 8:53 PM UTC

}// 139/140

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#waitforit

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BalintCsala

function u(t) {

t?(x.font="30px A",x[A="fillText"]("⚫",-17,11),x[A]("ˎ}",13,9),x.rotate(1.2566)):(c.width=110,x.translate(55,32))

May 29 2018 1:32 AM UTC

}// 113/140

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cherry flower

u/lionleaf

#flower