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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taupelink

remix of d/27396 by u/taupelink

function u(t) {

eval(unescape(escape`景爨椽㠴〬欽ㄸ〻椭ⴾ欫椪琻砮晩汬⠩⥸⹢敧楮偡瑨⡸⹦楬汓瑹汥㵒⡩⼸Ⱪ⼵Ⱪ⼴Ⱪ╴⼶〩⤬砮慲挨堽椥ㄲ⩫ⱙ㵩┷⩫Ⱪ┮㈹⩩⽴⨪琬樽椯⡬㴸㔭椥㐲⩴簴⤬樫椥ㄹ⼹ⴵ⤬砮獴牯步剥捴⡘⵬ⱙ⵬ⱬ⨽㈬氩`.replace(/u([^D].)/g,'$1%')))

Apr 23 2023 4:53 PM UTC

}// 140/140

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d/27406

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firegodjr

remix of d/7650 by u/firegodjr

function u(t) {

c.width=1920
for(y=41;--y;){x.fill();x.beginPath();for(w=33;--w+1;){x.lineTo(60*w,S(t+y/5+w/2)*50+30*y-75)}}

Apr 16 2018 5:30 PM UTC

}// 108/140

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Diet Sinewave Pattern, now with only 108 characters! (Had some leftovers from my original dweet idea that were clogging up the charcount, plus optimized the loops and positioning)

Show more comments…
u/BalintCsala

98 chars: for(c.width|=y=40;y--;x.fill(),x.beginPath())for(w=33;w--;x.lineTo(60*w,S(t+y/5+w/2)*50+30*y-75));
u/firegodjr

Thanks! I'm a bit new to reverse loop iteration, so I didn't think of replacing the --w+1. How does the c.width|=y reset the width properly, though?
u/BalintCsala

It sets it to 1960
u/iverjo

Cool! Deserves more attention
u/magna

98 chars: for(c.width|=y=41;--y;x.beginPath(x.fill()))for(w=33;--w+1;)x.lineTo(60*w,S(t+y/5+w/2)*50+30*y-75)
u/magna

Ah, u/BalintCsala beat me to it... :)
u/jylikangas

96 chars if you replace --w+1 with w--

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HardlyProductive

function u(t) {

for(x.reset(r=999);r--;)for(a=25;a--;){
p=960;f=(m)=>{l=m*(r**2/p);x.fillRect(p+r*S(a+m*t)+l*C(a),p/2+r*C(a+m*t)-l*S(a),3,3)}
f(1)
f(-1)}

Sep 27 2024 7:17 AM UTC

}// 137/140

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trying for a mandala

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vinca

function u(t) {

eval(unescape(escape`景爨挮睩摴桼㵷㴱攳ⱸ⹦楬汒散琨〬〬㉥㌬㉥㌩ⱡ㴭㤻愼ㄵ㭡⬽⸲⥦潲⡩㴷㭩㸰㭩ⴽ⸲⥸⹣汥慲剥捴⡷⬨⡘㴨搽㘫匨愫琪㌩⤪䌨吨椩⭡⼹⤩⬨娽ⵘ⼳⭡⤯㌩⼨娭㴲〩⩷⼲ⰵ〰⭤⩓⡔⡩⤫愯㤩⽚⩷⼲ⰲ⭓⡴⭡⤬㈩`.replace(/u(..)/g,"$1%")))

Apr 17 2019 10:54 PM UTC

}// 140/140

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BackendForth

remix of d/21811 by u/BackendForth

function u(t) {

c.width=1920
for(k=9;k--;)
for(i=10;i--;)for(j=25;j--;)x.fillRect(400+i*5+300/(1+2**(-39*S(t+k/9*t)+j))+k*100,540+j*8,5,8)

Mar 4 2021 2:48 AM UTC

}// 122/140

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Xen

remix of d/11987 by u/katkip

function u(t) {

for(i=55;i--;)for(j=55;j--;x.fillRect(960+C(i+t)*i*899/i,540+S(j+t)*i*999/j,20,20))x.fillStyle=R(i*5,0,j*5,.03)

Jan 29 2019 9:25 PM UTC

}// 111/140

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KilledByAPixel

remix of d/14222 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󬼽󨼮󬽴󮝬󩜊󬼮󨭡󨽫󩽲󫽵󫭤󠭬󩝮󩍍󫽤󩜽󙽳󨽲󩝥󫬧󒭦󫽲󚌫󚽴󛍢󟝛󪜽󞜹󧜻󪜭󛜻󬼮󨭡󨽫󩽲󫽵󫭤󟝢󚝰󟜱󜬰󛜨󪜪󪜫󚍓󚍩󚜫󜬩󚭴󚬹󚜥󜜲󜌬󨭛󪝝󟝠󬭡󩍩󨝬󛝧󬭡󩍩󩝮󭌨󙍻󬌯󜭽󭭨󘍡󭌠󙍻󪜫󤼨󪜫󭌯󜬹󚝽󙜤󮼹󚽩󙜱󞜫󬌯󛬸󯜥󛌤󮽒󚌲󝜵󛍰󚬳󛍰󚝽󛌣󜌰󜌩󨌻`.replace(/u../g,'')))

Feb 17 2025 1:12 AM UTC

}// 140/140

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Fire CSS 🔥

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akm

remix of d/6976 by u/SnakeBearSoftware

function u(t) {

with(x)for(c.width|=i=37,globalCompositeOperation='xor';i--;beginPath(fill()))arc(960+S(n=i*(C(t*2)*.3+6.3))*n-C(n),540+S(n)-C(n)*n,i*i,0,7)

Feb 18 2018 12:12 AM UTC

}// 140/140

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Thanks to u/BirdsTweetCodersDweet for the help with the oscillating function!

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joeytwiddle

function u(t) {

t?0:T=[X=0];for(X=20;X--;)x.beginPath(),x.arc(99*X,T[X]=(T[X]||0)+2+S(X*9+7*t/X),50,0,7),x.fillStyle='#c00',x.fill()

Oct 31 2017 2:49 PM UTC

}// 116/140

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Happy Halloween!

u/joeytwiddle

#halloween
u/joeytwiddle

#blood
u/joeytwiddle

Inspired by mmastrac's d/3414
u/joeytwiddle

Tixyland version: https://tixy.land/?code=y-t*3%2B9%2B3*cos%28…

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magna

remix of d/8479 by u/magna

function u(t) {

t||(d=c.cloneNode()).getContext`2d`.fillText('🐱',0,15)
s=55
for(i=1e3;i--;x.drawImage(d,X=i&31,Y=i>>5,1,1,X*s+580,Y*s,s,s))x.rotate(C(t))

Jun 7 2018 4:06 AM UTC

}// 138/140

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If you wait long enough on macOS, it starts looking like you've zoomed into a gold-plated torus.

u/Qwitter

when you fail to cross off enough "post it note" to do reminders?