Dweets awesomed by u/yukulele

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: #Opposites

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KilledByAPixel

remix of d/12331 by u/pavel

function u(t) {

eval(unescape(escape`𫱮𫑯𭑳𩑭𫱶𩐽𩐽🠨𨰮𭱩𩁴𪁼👓👃🐰𛁔👥𚐻𩡯𬠨𪠽𜑥𜰻𪠭𛐻𮀮𩡩𫁬𤡥𨱴𚀹𝐷𚰴𝐰𚡓𛀵𜰷𚰴𝐰𚡃𛀵𛀵𚐩𬰽𣑡𭁨𛡲𨑮𩁯𫐨𚐼𛠵🰭𜐺𜐬𠐽𚁍𨑴𪀮𪁹𬁯𭀨𤰫👔𛡸𛰲𞀴𛐱𛁃𚰽𥀮𮐯𜐶𜀭𜐩𚱓𚐯𜠬𠰽𚁃🀰🰭𬰺𬰩𚠨𠐭𤰩𚠪𛠵𛁓👳𚡁𚠪𛠵`.replace(/u../g,'')))

Jul 9 2019 5:20 PM UTC

}// 137/140

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#julia set explorer ~ Use the mouse to control!

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u/katkip

Cool! #compressed
u/donbright

woohoo!
u/stefano

Rookie question.. Is this using Web Assembly? If so, how do I get started?
u/metamero

replace eval with throw to see uncompressed JS code
u/stefano

Awesome, thanks
u/katkip

beautiful
u/KilledByAPixel

Thank you, but pavel did the hard part.
u/aleamb

#interactive #fractal
u/lud

Dragon curve?

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metamero

function u(t) {

</script>

Jul 1 2019 3:37 PM UTC

}// 9/140

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u/Xen

crafty
u/durian-favored-monster

very cheeky :)
u/katkip

#xss

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joeytwiddle

remix of d/14824 by u/donbright

function u(t) {

c.width=400
d=(r,T)=>x.fillText(T,200+r*S(a=i/1.91),115-r*C(a))
for(i=N=t|0;i>1;i--)
for(N%i||d(60+i,i),k=50;k--;)N%i||d(k,'*')

Jun 29 2019 4:36 AM UTC

}// 127/140

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Prime factors on a clock #primes #math

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u/joeytwiddle

Shouts to donbright and taupelink!
u/joeytwiddle

35, 55, 77, 95, 115 and 119 all draw a lambda
u/katkip

Wow
u/taupelink

yay
u/DataMeta

Noice!
u/joeytwiddle

Oops this shows all factors, not just prime factors
u/donbright

hee hee sorry my description on the original was slightly misleading
u/donbright

you have golfed it down to where you might actually be able to do something only with prime factors
u/donbright

holy smokes... i just realized something. if you express an integer using this method, there are only 2 to the twelfth possible representations, which is 4096
u/joeytwiddle

Even fewer, since 4, 6, 8, 9, 10, and 12 never appear alone
u/joeytwiddle

They all light up at t=13860, after 3.85 hours #waitforit
u/joeytwiddle

For seconds/minutes use S(a=i/9.55) and d(60+i/4,i)
u/joeytwiddle

To see factors of odd numbers only, and quickly: i=N=t*22|1
u/donbright

cool

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pavel

remix of d/14376 by u/pavel

function u(t) {

t?x.arc(w=960,h=540,h,0,c.width|=0):X=Y=1e3
X*X+Y*Y>2.4e5&&(r=C(t*t)*8+12,U=-X/r,V=-Y/r)
X+=U;Y+=++V;x.arc(w+X,h+Y,5*r,0,7);x.fill`evenodd`

Jun 6 2019 5:00 AM UTC

}// 139/140

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#physics #bounce updated so ball size reflects speed

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pavel

function u(t) {

with(x)for(i=4;i--;fill())for(beginPath(j=4),fillStyle=i?R(a=128+50*S(~i%3+13*t),a,a):'#868';a=j--/.64;)arc(960,536-~i%3*5,i<3?300:3e3,a,a)

Jun 6 2019 4:36 AM UTC

}// 139/140

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The Perpetual Diamond #illusion

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u/pavel

Contrast Reversals Along Thin Edges Create the Appearance of Motion in Objects
u/pavel

https://doi.org/10.1177/2041669518815708
u/katkip

Wow
u/metamero

beautiful!!! #opticalillusion
u/SMON

It's grest but cannot hold a candle to some of your other works. :)
u/agshapiro

love it!

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pavel

remix of d/14305 by u/robbyg

function u(t) {

r=(t&&2+r)**.5;throw p=t?2*p/r:2

May 31 2019 3:19 AM UTC

}// 32/140

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Calculating #pi based on Viète's formula

u/pavel

Converges pretty quickly

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pavel

function u(t) {

for(i=c.width|=0;i--;x.fillRect(960+200*(r*C(a=i*o/300)-4*o+3),540+200*((1-o)*S(i)*C(b=o*1.6)-r*S(a)*S(b)),8,8))o=t/3%1,r=(1-o)*C(i)+3*o-4

May 30 2019 4:25 AM UTC

}// 138/140

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#torus #loop

u/katkip

#beesandbombs

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KilledByAPixel

remix of d/13750 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪀽𞐹𞱔👴🱔𚰲𞠰𞱘🐹𞐭𥀥𜐶𜀻𪐽𥀯𜐶𜀬𦐽𜰲𛐱𜠪𠰨𪐪𝐩𞱑👩𙠱𞱔𙠦𮐼𞐹𙠡𚁘🠭𝀹𙡘🀱𝐦𚁑🰭𮐫𦐭𝀾𜀺𮐭𦐾𜀩𚐿𮐭👗𛐽𛠰𜰺𚁔👗🐰𛁹🐹𚐻𮀮𩡩𫁬𤡥𨱴𚁘𛁙𛐱𜐰𚡑𛀵𞐬𞐹𚐻𫱮𨱬𪑣𪰽𭠽🡗🐱𞱸𛡦𪑬𫁔𩑸𭀨𪑼𜀬𞐬𮐬𞐩`.replace(/u../g,'')))

May 13 2019 7:05 AM UTC

}// 137/140

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Dweety Dweet 3 - CLICK TO FLAP - Double the speed and all new gameplay! #interactive #game #DweetyDweet

u/katkip

This is harder

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pavel

remix of d/13276 by u/pavel

function u(t) {

for(i=c.width|=f=g=>(i%12-6)*g(t)+(i/144-6|0)*g(t+8);i--;z>.8&&x.fillRect(960-s/2+(i/12%12-6|0)*540/z,460+f(S)*540/z,s,s))z=1+f(C),s=150/z/z

May 11 2019 6:53 AM UTC

}// 140/140

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#uncompressed

u/pavel

f defines Y and Z and rotates them by angle t. Really efficient.

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pavel

remix of d/10527 by u/yonatan

function u(t) {

for(i=c.width|=f=g=>2*g(2*i/3)+g(-i/3),w=960;Z=S(--i);x.arc(w+w*(Z*S(t)+f(S)*C(t))/z,540+w*f(C)/z,w/z/z,0,7))z=7+f(S)*S(t)-Z*C(t);x.stroke()

May 9 2019 10:59 PM UTC

}// 140/140

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#trefoil #knot

u/pavel

Play around with f(g) to generate different shapes.
u/KilledByAPixel

trefoil knot is best knot, awesome work.
u/katkip

g=>2*g(5*i/9)+g(i/9) is cute
u/iverjo

Very good in fullscreen

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