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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rodrigo.siqueira

remix of d/33263 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
for(i=2e4;i--;){
r=C(i)/S(i/t)+3
X=r*C(k=i/6-.78)*500
Y=r*S(k)*480
Z=r*S(i)%1+4
x.fillRect(960+X/Z,540-Y/Z,.1,t<5)}

Apr 7 2025 2:56 PM UTC

}// 140/140

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6-star

u/magna

oh yes.

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zanella

function u(t) {

r=540;x.fillStyle='#00000005';x.fillRect(0,0,2e3,2e3);x.fillStyle='#0f0';x.beginPath();x.moveTo(960,r);x.arc(960,r,r*5,t,t+.1);x.fill()

Jan 19 2018 3:26 PM UTC

}// 135/140

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u/donbright

great minds think alike, https://www.dwitter.net/d/2408
u/iverjo

#radar

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thorri

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 */

Feb 25 2017 2:18 PM UTC

}// 122/140

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KilledByAPixel

function u(t) {

o="񏰀􏸿򺯼񳵕􀕓򺬖򤰀𦁓𐁐𤰀𤁏󓼓𣰀󔁓𐁐񢅕𠕈񥜨􀿿󚀏񥏁򳰂􀀏񌏀"
eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼🐰𛁩🐲𝀰𞱩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𭀥𜐼𛠵🱘𞠱𞀶𜀭𦀬𚁩𛰱𝑼𜀩𚡃𛁃𛁃🐶𞀩𚑸𛡦𪑬𫁓𭁹𫁥👒𚁶🐨𫰮𨱨𨑲𠱯𩁥𠑴𚁩𛰵𚐾🡩𙐵𚠲𙠳𚐪𞐵𛁶𛁶𚐬𦀽𝀲𜀫𪐥𜐵𚡃`.replace(/u../g,'')))

Sep 15 2019 3:43 AM UTC

}// 140/140

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Play my JS13k game Bounce Back! https://js13kgames.com/entries/bounce-back

Show more comments…
u/tomxor

Nice game :)
u/KilledByAPixel

Thanks!
u/LovelyRita

Nice!
u/tomxor

L-7, i'm loving this, i can't help but think the circles are breakfast cerial :D
u/metamero

so cute <3
u/Purpzie

how the actual flip did you get 232 characters in there
u/KilledByAPixel

416 bytes, 140 characters ;)
u/tomxor

Or 140 unicode code-points (how the server evaluates length), 232 UTF16 chars (how JS in the browser evals length), and 198 effective bytes (134 chars provided by the escape compressor as 2 bytes per surrogate pair, and 60 bytes in the image manually packed into the string "o" with 20 bits per surrogate pair + 4 chars for variable assignment outside)... :) yay i'm learning about arcane UTF16 stuff.
u/KilledByAPixel

#pixelart

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MathTechCoach

function u(t) {

//c.width=1920;
x.fillStyle=R(Math.abs(255*C(t)),Math.abs(255*C(t)),Math.abs(255*C(t)));
x.fillRect(810*S(5*t)+840,400*C(t)+500,100,100);

May 18 2024 1:16 PM UTC

}// 138/140

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u/warbino

awesome!

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rodrigo.siqueira

remix of d/33891 by u/rodrigo.siqueira

function u(t) {

for(i=2e4;i--;){
r=S(n=i*i/t)*S(n)**-1.3
X=C(k=i/4)
Y=S(k)
Z=r*r*S(T(i+r*8))/260
x.fillRect(960+X/Z,540-Y/Z,.2,t<2)}

Jun 2 2025 5:32 PM UTC

}// 116/140

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Spiraloid #spiral

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joeytwiddle

remix of d/1763 by u/New_Core

function u(t) {

onkeyup=e=>{T||a.close();a=new AudioContext;o=a.createOscillator();o.connect(a.destination);o.frequency.value=7*1.06**e.keyCode;T=o.start()}

Apr 13 2017 12:32 PM UTC

}// 140/140

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A piano you can play with your keyboard. G is middle-c, i think

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u/joeytwiddle

Twinkle little star: GGNNPPN LLKKIIG NNLLKKIx2 GGNNPPN LLKKIIG
u/joeytwiddle

Silent Night: G IG D, G IG D, N NK, L LG, (I IL KIG IGD)x2, N NQ NKL P LGDGEB L
u/joeytwiddle

Star Wars: (IIIN U SRPZ U SRPZ U SRSP)x2 I IK KSRPN NPRP KM, I IK KSRPN UP. I IK KSRPN NPRP KM, IIN LJI GED BI. IKNSP
u/joeytwiddle

Thanks to @donbright who showed me where i could save 5 chars
u/iverjo

Very impressive :D
u/donbright

this is unbelievable. (ps thx but i stole the idea from others here)
u/donbright

(ok technically they gave it to me prob @cantelope / @manga)
u/Woodmouth

This is the strangest piano i've ever played, but good job!
u/Woodmouth

Also, i found a way to stop it, just press shift. (or any other key with a value too high or low to hear (At least i think that's what happens))
u/joeytwiddle

and of course thanks to New_Core for the intro to Web Audio API
u/joeytwiddle

#audio #music #piano #interactive
u/joeytwiddle

Star Trek intro: R M P H, F KP OKHMR RV Q T L, J OT SOLQV VZ
u/joeytwiddle

Star Trek main: B-L-KIGFE, C B-N-LKIGF, E-D FGIKLKN Q, P N D, I G (ILPS!)
u/joeytwiddle

One more you might know: NPSP WWU, NPSP UUS, NPSP S UR N NU S
u/joeytwiddle

Check the old comments for some simple tunes to play. You'll need to click on the blank canvas for keyboard focus. Hit Space, Shift or Escape for "silence".

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anotherkitten

function u(t) {

t=t-->1?t*19:.01;c.width|=0;for(i=99;i--;x.fillRect(b=t**.8*i,1e3+(t*29-t*t/1.5)*(-2/b**.1),80,80))x.fillStyle=`hsl(${50-t} 90% ${70-t}%`

Nov 29 2018 8:20 PM UTC

}// 137/140

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crate explodes?

u/katkip

Doesn
u/katkip

Doesn't work for me*

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mmastrac

function u(t) {

for(w=t?64:N=[],i=500;i--;)t?x.fillRect(w*(i>>4),i%16*w,w,w,x.fillStyle=R(M[i])):N[i]=Date.now()%i;M=N.slice(0).sort((a,b)=>i++>t*1e3?0:a-b)

Oct 30 2017 8:54 PM UTC

}// 140/140

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Javascript sort visualizer

u/mmastrac

Date.now() thanks to @xen

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rodrigo.siqueira

remix of d/19882 by u/rodrigo.siqueira

function u(t) {

for(i=190;x.beginPath(),i--;x.fillStyle=`hsl(${t} 90%${S(i/9+t)*i}%)`,x.fill())x.arc(960+C(a=t+i)*(k=(1.05)**i),540+i*S(i),i*(k/999)**2,0,7)

Sep 10 2020 2:54 PM UTC

}// 140/140

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Spinning circles