Dweets awesomed by u/Lazy1337

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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sj_

function u(t) {

x.beginPath();for(i=0;i<3;i++){x.arc(500+10*i*T(t/i),500+i*S(t/2)*10*t,2,0,10)}x.stroke()

Jan 16 2018 12:09 AM UTC

}// 89/140

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Reflection: bird skimming water

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yonatan

remix of d/2643 by u/yonatan

function u(t) {

for(X=c.width=128;--X;)for(Y=74;Y;x.fillStyle=`hsl(${A=X*C(t)+Y**S(t)^Y*C(t)-X**S(t)},${A=A+t*99&63}%,${A}%`)x.fillRect(X,--Y,1,1)

Jan 12 2018 8:44 PM UTC

}// 130/140

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10 chars left!

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u/sigveseb

woah this one is sick! more upvotes!
u/whackashoe

This is awesome!!!!
u/sandromiccoli

niiiice
u/iverjo

Mind blown!
u/iverjo

#rotozoom
u/joeytwiddle

#colors

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Bam191

remix of d/5936 by u/Bam191

function u(t) {

x.fillStyle=t?'#0f0':x.fillRect(0,0,宽=2e3,宽),r=Math.random,x.font="3em'",b=t*宽%1100,b>1e3?a=r()*宽:x.fillText(String.fromCharCode(r()*宽),a,b)

Jan 12 2018 1:56 PM UTC

}// 140/140

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With help from the code golf team, we were able to get the matrix crawl to have a black background :D

u/sigveseb

would be cool to have some sort of feature in dwitter to group effects into categories. Here's my take at matrix! :D d/4922
u/iverjo

Tags would be helpful for grouping effects
u/rippedspine

nice!
u/joeytwiddle

#matrix

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DonKarlssonSan

remix of d/5923 by u/DonKarlssonSan

function u(t) {

if(!window.a)a=new AudioContext,o=a.createOscillator(),o.connect(a.destination),o.start()
c.onmousemove=d=>o.frequency.value=d.clientX*3+440

Jan 11 2018 7:54 PM UTC

}// 140/140

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📣📢 Move the mouse! 🔉🔊

u/katkip

#audio ouch

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DonKarlssonSan

remix of d/5876 by u/DonKarlssonSan

function u(t) {

if(!window.a)a=new AudioContext,o=a.createOscillator(),o.connect(a.destination),o.start()
c.onmousemove=d=>o.frequency.value=d.clientX*3+99

Jan 11 2018 7:49 PM UTC

}// 139/140

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Show more comments…
u/Lazy1337

Nice idea, but it became annoying after a while ^^ I had to edit the code to a syntax error
u/Lazy1337

killed the sound in FF which surprised me, I had to test in Chrome but it didn't work
u/DonKarlssonSan

📣📢 Move the mouse! 🔉🔊
u/DonKarlssonSan

@Lazy1337 works in both Firefox and Chrome on my Mac.
u/iverjo

#sound
u/metamero

#theremin
u/IV

lol, woke my neighbour up!

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Moosething

function u(t) {

x.globalCompositeOperation='xor';
x.fillRect(960,1079,1,1)
x.drawImage(c,-1,-1)
x.drawImage(c,1,-1)

Jan 11 2018 3:20 PM UTC

}// 99/140

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u/Xen

nicely done
u/Jezza

Very cool!
u/sandromiccoli

beautiful
u/Qwitter

Nice!
u/nyarmith

wild
u/katkip

#gameoflife
u/katkip

(it really is a game of life rule)

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sigveseb

remix of d/5853 by u/Xen

function u(t) {

x.globalCompositeOperation='xor'
x.fillRect(960+C(t*2)*500|0,0,18,9)
x.drawImage(c,0,9)

Jan 11 2018 12:29 AM UTC

}// 87/140

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sigveseb/xen Dweetchain: #13

u/sigveseb

Very strange, in edit mode this looked clean, now it collapses into Grey. Hmm
u/Xen

eventually turns to static with moving triangle fragments on mine
u/lionleaf

#sigveseb_Xen_remix_chain

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sandromiccoli

remix of d/5815 by u/S.T.L.K.R.

function u(t) {

c.width=2e3;x.fillRect(0,0,2e4,2e5);for(i=8e3;i--;){x.fillStyle=`#db0`;x.fillRect(990+S(i*1)*T(t/i*6)*999,580+S(i*2)*~T(t+i)*599,4,5)}

Jan 10 2018 6:39 PM UTC

}// 134/140

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u/Jezza

Love it!

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DonKarlssonSan

remix of d/5771 by u/DonKarlssonSan

function u(t) {

c.width|=w=960
h=540
for(i=0;i<45;i++){x.save()
x.translate(w,h)
x.rotate(S(t*2+i/9))
x.strokeRect(-(s=i*(9+i))/2,-s/2,s,s)
x.restore()}

Jan 8 2018 10:24 PM UTC

}// 136/140

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Xen

remix of d/5724 by u/FrenchToast

function u(t) {

for(c.width|=i=L=255;i--;x.strokeRect(X,i*4,i*3,i*2))x.fillStyle=R(L*C(t),i%L,i%L-100),x.fillRect(X=1920/2+C(T(t*2-i/300))*i,i*4,i*3,i*2)

Jan 7 2018 9:31 PM UTC

}// 137/140

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Shoutz to u/FrenchToast love the original

u/yodacoder

This is cool!
u/GitAtMe

Definitely one of my favorites!
u/Xen

thanks :-)

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