Top dweets by u/joeytwiddle

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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joeytwiddle

function u(t) {

c.width=420;x.scale(25,25),i=0;for(j of '🌇🌆🌅🌉🌃🌌⛺🌄')k=4*C(6.28*i++/8-t/5)-3,x.globalAlpha=k<0?0:k,x.fillText(j,3,9)

Apr 30 2018 10:27 AM UTC

}// 114/140

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Stellar-themed serene scenes

u/lionleaf

Nice one! #emoji
u/joeytwiddle

Blurred out of the park in Chrome v83 on Linux
u/joeytwiddle

Fixed version: c.width=420;x.font="13em'",i=0;for(j of "🌇🌆🌅🌉🌃🌌⛺🌄")k=4*C(6.28*i++/8-t/5)-3,x.globalAlpha=k<0?0:k,x.fillText(j,75,185)

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joeytwiddle

remix of d/8288 by u/joeytwiddle

function u(t) {

for(c.width|=k=512;k--;x.fillRect(960-W-12*j*C(a=t+i*17),960-j*(p=i+4*S(a)),2*W,p))i=k>>5,j=k%32,x.fillStyle='#fc74',W=99*S(j/10)

Nov 7 2018 5:25 AM UTC

}// 129/140

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An orange flower for Diwali

u/joeytwiddle

#flower #diwali https://en.wikipedia.org/wiki/Diwali
u/aleamb

coool

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joeytwiddle

remix of d/2474 by u/joeytwiddle

function u(t) {

c.width|=i=30;with(x)for(lineWidth=45;i--;r%4&&stroke())beginPath(r=2+i%10),arc(940,540,r*44,s=i+4*S(t/3+i),s+(4+i*3)%6)

Mar 31 2018 6:20 AM UTC

}// 120/140

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Revision Logo (golfed)

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u/joeytwiddle

Info: http://revision-party.net Live: https://www.twitch.tv/revisionparty Videos: https://www.youtube.com/user/RevisionParty
u/sigveseb

You at revision joeytwiddle?
u/joeytwiddle

Sadly not. Still on the wrong continent. My crew too. But I'm tuned in.
u/lionleaf

Too bad :( I actually flew in from a different continent; you need a stronger excuse!
u/joeytwiddle

Hehe well I'm also trying to save the oil. Although I'm realising it's useless :(
u/joeytwiddle

Downloads: http://www.pouet.net/party.php?which=1550&am…
u/iverjo

#revision
u/joeytwiddle

#logo
u/Coalshork

i cant not see the earthbound boss background lol

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joeytwiddle

remix of d/7333 by u/Batrachus

function u(t) {

for(i=d=960,c.width=d;i--;x.arc(d/2+(j-.5)*S(t)*d/2,d/4+S(3*j)*d/8,M,0,7))j=i/d,M=d/2*Math.max(0,S(2.5*j+.6)/6-.06)+12;x.stroke()

Mar 18 2018 9:06 AM UTC

}// 129/140

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Smooth banana

u/joeytwiddle

We need x.beginPath() to draw filled circles, so instead this draws lots of hollow circles
u/iverjo

#banana

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joeytwiddle

remix of d/4805 by u/Jezza

function u(t) {

c.width=640;d=-2.1;e=1.9;for(i=l=j=t;i<6e4;i++)k=S(d*l)+C(t)*C(j*d),m=S(e*j)+S(t)*C(l*e),j=k,l=m,x.fillRect(320+j*100,180+l*70,.3,.3)

Dec 30 2017 3:29 PM UTC

}// 133/140

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u/xem

Splendid
u/joeytwiddle

I do like adding alpha to other people's attractors http://bit.ly/2pZCrOg http://bit.ly/2DDaPjO
u/joeytwiddle

This version is easier to resize: https://www.dwitter.net/d/5336
u/joeytwiddle

Please do give Jezza an upvote. They did most of the work here!
u/katkip

#attractor

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joeytwiddle

remix of d/3116 by u/yokljo

function u(t) {

c.width|=k=150;for(j=k*6;j--;x.fillRect(300+i*9,180+b*k-i+(S(i**1.33/k-t*7))*i**.7,9,k))i=j/6|0,x.fillStyle=`hsl(${18*(b=j%6)**1.8},70%,55%`

Sep 5 2017 4:17 PM UTC

}// 140/140

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Pride Flag (unlit)

u/joeytwiddle

which coincidentally uses the exact same colours as the Mac spinner
u/joeytwiddle

This larger version has lighting and extra wobble: https://codegolf.tk/a/168
u/iverjo

#flag
u/f8f82804

#rainbow #pride

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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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joeytwiddle

function u(t) {

c.width|=0;x.lineWidth=d=45;for(i=30;i--;r%4&&x.stroke())r=(2+i%10),s=i+4*S(t+i),l=(4+i*3)%6,x.beginPath(),x.arc(940,540,r*d*.9,s,s+l)

Apr 12 2017 7:16 PM UTC

}// 134/140

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http://revision-party.net is this weekend!

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u/reportbase

Thumbs Up. This is cleaver.
u/donbright

!!!!!!
u/sigveseb

Who's going?
u/joeytwiddle

Unfortunately I am too far from the party. BTW this dweet runs too quickly. I should have used t/3
u/iverjo

I'm going to revision :D
u/joeytwiddle

Lock some of the blocks, so not everything is moving at once: s=i+2*C(t/4+i)**32
u/joeytwiddle

Have a great time iverjo and anyone else attending!
u/iverjo

#revision

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joeytwiddle

remix of d/27279 by u/joeytwiddle

function u(t) {

for(h='<div style=perspective:99vw>',i=20;i--;)h+=`<div style=transform:rotateY(${7*C(i/27+t/2)}rad)>${x+x}</div>`
document.body.innerHTML=h

Jun 9 2024 3:37 PM UTC

}// 140/140

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#text #perspective #twister fixes

u/cantelope

neat
u/lewdev

What the heck is perspective? This is so cool! I changed its value to 30vw which made the effect a lot more dramatic 😁

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joeytwiddle

remix of d/17943 by u/katkip

function u(t) {

for(c.width=i=99,x.fillStyle='#024';i--;c.style.filter=`blur(9px)contrast(15)invert()`)x.fillRect(50+22*(q=C(i+t%20)),99-50*C(q)-i*t%40,4,9)

Mar 15 2020 2:54 PM UTC

}// 140/140

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Spirits in the flame

u/katkip

scary
u/Xen

Fire!
u/aleamb

wow! love it!
u/aleamb

#fire #flame

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