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

remix of d/2813 by u/joeytwiddle

function u(t) {

x.fillStyle=R(k=260,k,k,.1)
x.fillRect(0,0,2e3,1e3)
x.fillStyle='#09b'
x.font='480px s'
x.fillText('NOVA',k,700)
x.drawImage(c,9*S(3*t),9)

Jun 24 2017 7:52 PM UTC

}// 138/140

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What went down at the party: https://www.youtube.com/watch?v=WLrIOFUePLQ

u/joeytwiddle

5:16 Photography and art 6:20 Music 9:11 Wilds and demos!

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joeytwiddle

remix of d/508 by u/New_Core

function u(t) {

x.beginPath();x.strokeStyle=R(0,a=255*S(7*t),a);x.ellipse(960,540,b=79+2*S(t/2),b*.7,t/2,0,7),x.stroke();x.drawImage(c,-9,-4,1938,1088)

May 9 2017 12:21 PM UTC

}// 135/140

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s/stroke/fill/g to get rid of the white circle

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joeytwiddle

remix of d/26942 by u/neimad

function u(t) {

for(i=c.width=255;i--;)
x.fillStyle=['#078930','#FCDD09','#DA121A','#222'][S(i/20+t)+S(i/10+(2-S(t)*4))+S(-i/5+t)&3],
x.fillRect(0,i,255,i)

Jan 28 2023 2:43 AM UTC

}// 139/140

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Rasta Bars

u/joeytwiddle

(I'm sure this bad joke has been made before)

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joeytwiddle

remix of d/18457 by u/ersagun

function u(t) {

Y=t*60,W=(25e4-(Y-540)**2)**.5
x.fillRect(960-W,Y,2*W,1)

Apr 28 2020 8:18 AM UTC

}// 56/140

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#circlechallenge using Pythagorus theorem

u/joeytwiddle

"Trigonometry isn't about triangles, it's about circles" — 3B1B
u/joeytwiddle

Smarter version, does the multiplication later: d/18385
u/DaSpider

Also d/18398
u/magna

WHOA

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joeytwiddle

remix of d/13538 by u/vinca

function u(t) {

h=(x,y)=>2e4/(x**2+y**2),p=18;for(i=7e3;i--;x.fillRect(p*X,p*Y,p,p))Y=i%64,x.fillStyle=R(p*h(X=i>>6,1+Y)+(b=h(p*C(7*t)+p-X,p*T(5*t)-Y)),0,b)

May 1 2019 4:31 PM UTC

}// 140/140

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vinca's metaballs, compressed

u/joeytwiddle

Took liberties with the sqrt. (Dropped it!)
u/vinca

oh. nice shorter code!
u/donbright

nice

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joeytwiddle

remix of d/8413 by u/joeytwiddle

function u(t) {

for(c.width|=0,i=4e3;i--;x.beginPath())x.globalAlpha=.03,x.arc(S(t*6+i*i/99e2)*i*i/1e4+960,C(t*6+i*i/99e2)*i*i/1e4+540,i/30+2,0,7),x.fill()

Jun 5 2018 9:46 AM UTC

}// 139/140

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Soft spiral happy accident 2

u/joeytwiddle

Moody and cloudy: x.arc(S(t*6+i*i/99e2)*i/4+960,C(t*6+i*i/99e2)*i/4+540,i/30+2,0,7),x.fill()
u/joeytwiddle

Eye of the storm: t=9+t/5e2;for(c.width|=0,i=4e3;i--;x.beginPath())x.globalAlpha=.03,x.arc(S(i*i/1e4*t)*i/4+960,C(i*i/1e4*t)*i/4+540,i/30+2,0,7),x.fill()

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joeytwiddle

remix of d/3021 by u/joeytwiddle

function u(t) {

s=speechSynthesis
V=s.getVoices()
c.onclick=l=()=>(U=new SpeechSynthesisUtterance(l),U.voice=V[t%V.length|0],s.speak(U))//U.rate=U.pitch=1.2

Aug 6 2017 8:25 AM UTC

}// 140/140

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A speaking dweet (international version)

u/joeytwiddle

Chrome users, if your utterance goes over 15 seconds, you may need to close the tab. http://tinyurl.com/chrome-bug-679437
u/cantelope

very clever :)... btw, which dweet of mine crashed your lappy? ...just curious
u/joeytwiddle

This is the one, it can reliably overheat my CPU: https://www.dwitter.net/d/2355 I think it's due to the size of the large squares. I have had to adjust the cooling thresholds!
u/cantelope

:/ sorry about that.
u/joeytwiddle

No worries Cantelope. Wow Mac has a lot of voices. The "Cello" voice is pretty funny! https://codesandbox.io/s/vq48b #audio #speech

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joeytwiddle

function u(t) {

x.font='480px s'
x.fillText('NOVA',260,700)
x.transform(1,0,0,1.02,0,-10)
x.fillStyle=`hsla(${888*t},50%,50%,${.001**t}`

Jun 23 2017 6:18 PM UTC

}// 120/140

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Nova party is this weekend in Devon, UK http://www.novaparty.org/

u/joeytwiddle

x.transform(1.01,0,0,1.02,-9,-10) is also fun
u/joeytwiddle

Oh curious. 's' gives me a 'sans' font on Linux but a 'serif' on Mac!

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joeytwiddle

remix of d/2559 by u/joeytwiddle

function u(t) {

c.width|=0;for(i=H=1e3;i--;!t||j==Z&&(X-H)**2<8e3?Z=0:onclick=e=>Z++)j=i>>2,x.fillRect(j?X=(j%3+1)*(t/4+i)*213%2e3:H,52*(j||Z),99,40)

Apr 26 2017 5:44 PM UTC

}// 133/140

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Golfed version with busier traffic. Difficulty level: donbright

u/New_Core

made it thru ;)
u/rileyjshaw

Same :D super fun

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joeytwiddle

remix of d/2754 by u/New_Core

function u(t) {

P=200;A=Math.abs;t?c.width|=0:a=1;d=A(500*S(t));a=d<5?20:a<0?0:a-.1;x.ellipse(P+A(P*t%3040-1520),840-d,a*S(t*9)+P,a*C(t*9)+P,0,0,7);x.fill()

Jan 27 2019 5:39 AM UTC

}// 140/140

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New_Core's bouncing ball + walls

u/13thptr

great #bounce #ball

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