Top dweets by u/pavel

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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pavel

remix of d/16909 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(x.globalAlpha=.1,0,i=2e3,i);r=--i*S(t/3);x.clearRect(960+r*S(a)*C(i)/z,540-r*S(i)/z,s=z>0&&6/z,s))z=1+r/2e3*C(a=i*i+t/9)*C(i)

Dec 19 2019 11:08 PM UTC

}// 140/140

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#stars #explosion

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pavel

remix of d/12115 by u/pavel

function u(t) {

for(i=c.width|=h=1065/226;q=--i%3-1,a=q?i:i*h+h/2;x.fillRect(960+S(a+t)*800/r/z,540+(q||T(i))*800/z,s=70/z/z,s))r=S(a%h),z=4+C(a+t)/r,z*=z>1

Apr 16 2019 5:01 PM UTC

}// 140/140

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#d3 #cube #perspective #wireframe

u/pavel

#uncompressed
u/KilledByAPixel

rad

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pavel

function u(t) {

eval(unescape(escape`睩瑨⡸⥦潲⡩㵣⹷楤瑨簽栽ㄮ㔷〸㭪㵩ⴭ㸾㔻獴牯步⠩⥳整呲慮獦潲洨㤬〬〬㤬⡩☳〩⨸ㄬⴭ横ㄶ㈩Ɫ敧楮偡瑨⡲潴慴攨栯⠱⬱改⨪匨琫⡩㸾ㄩ⨨樫ㄩ⤩⤩ⱡ牣⡰㵩┲⨱㠭㤬瀬㤬愽㈪株椬愫栩`.replace(/u(..)/g,"$1%")))

Dec 20 2018 12:45 AM UTC

}// 132/140

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u/katkip

Cool
u/magna

#truchet
u/pavel

with(x)for(i=c.width|=h=1.5708;j=i-->>5;stroke())setTransform(9,0,0,9,(i&30)*81,--j*162),beginPath(rotate(h/(1+1e9**S(t+(i>>1)*(j+1))))),arc(p=i%2*18-9,p,9,a=2*h*i,a+h)

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pavel

remix of d/11280 by u/pavel

function u(t) {

for(c.width|=i=36;j=60*(--i>>2);x.fillRect(-j,0,2*j,u>0||9))x.setTransform(u=C(a=(i/2+t/8)*Math.PI),v=S(a),0,4,960+j*v,256+j/2-j*u)

Dec 5 2018 4:20 AM UTC

}// 131/140

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#pyramid v2

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pavel

function u(t) {

with(x)for(c.width|=k=320,scale(9,9);--k;arc(107,60,16*(k>>5)+16/(1+1e5**(.5+k%2-t%2)),a=(t/2-k)%11*.571,a))k%2&&beginPath(stroke())

Nov 26 2018 7:23 PM UTC

}// 132/140

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Walking Spiral #beesandbombs

u/pavel

Using scale(9,9) to get thick lines and shave some digits from coordinate numbers (e.g. 60 vs 540 for height)
u/pavel

x.arc(X,Y,r,a,a) = x.lineTo(X+r*C(a),Y+r*S(a))
u/katkip

Duuude
u/katkip

Awesomeee

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pavel

remix of d/9830 by u/joeytwiddle

function u(t) {

for(c.width|=j=22,t%=2;--j;)for(i=8;i--;x.arc(960,540,i&&j>2*p&&70*(j-2*p),a=(i+p)*355/339,a))p=1/(1+2**(j+6-16*t));x.fill('evenodd')

Nov 23 2018 3:16 AM UTC

}// 133/140

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u/joeytwiddle

Golfed with plenty to spare. Fantastic!
u/sigveseb

Oh my
u/iverjo

Yes!
u/pavel

#uncompressed

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pavel

function u(t) {

with(x)fillStyle=R(0,0,0,.01),fillRect(0,0,w=2e3,w),setTransform(a=6*S(A=t**9),b=6*C(A),-b,a,A%w,-99),clearRect(0,0,3,w),strokeRect(0,0,3,w)

Nov 20 2018 6:31 AM UTC

}// 140/140

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Strings in yr face #beesandbombs

u/katkip

#web

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pavel

function u(t) {

p=i=>99*[0,0,3-i,1,6-i,2,i-5,i-7][~~i]
for(c.width|=t%=i=8,x.rotate(.8);i--;m+7&7&&x.fillRect(p(m?i:t)+904,p(m?6-i&7:8-t)-460,90,90))m=~~t-i

Nov 10 2018 7:44 AM UTC

}// 140/140

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This really wants to be faster but I'm out of bytes!

Show more comments…
u/jylikangas

This is challenging stuff!
u/Xen

137: p=i=>99*[0,0,3-i,1,6-i,2,i-5,i-7][~~i] for(x.rotate((c.width|=t%=i=8)/9);i--;m+7&7&&x.fillRect(p(m?i:t)+904,p(m?6-i&7:8-t),90,90))m=~~t-i
u/jylikangas

Full speed 138: p=i=>99*[0,0,3-i,1,6-i,2,i-5,i-7][~~i] for(c.width|=i=8,x.rotate(7);i--;m+7&7&&x.fillRect(p(m?i:T=t*5%8)+700,p(m?6-i&7:8-T),90,90))m=~~T-i
u/pavel

Nice! There is some flicker but you saved enough bytes to fix p=i=>99*[0,0,3-i,1,6-i,2,i-5,i-7][~~i];for(c.width|=i=8,x.rotate(7),T=8*t%8;i--;m+7&7&&x.fillRect(p(m?i:T)+450,p(m?6-i&7:8-T),90,90))m=~~T-i
u/jylikangas

This was fun. I also tried two totally different implementations but it seems your approach is the best.
u/katkip

Haha that's fun

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pavel

remix of d/20689 by u/yonatan

function u(t) {

for(c.width=w=128,i=2e3;z=--i>>7;x.fillRect(i%w,(4+S(a=i/6+7*t/z)+S(3*a^z)/3+S(9*a)/9)*(14-z),1,w))x.fillStyle=`hsl(200,${z*9}%,${i/7-z*z}%`

Nov 19 2020 2:45 AM UTC

}// 140/140

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Show more comments…
u/joeytwiddle

Excellent collaboration, you monsters!
u/danny@hille.dk

You got some serious golf-fu skills 👍
u/danny@hille.dk

+S(9*a)/9 can be approximated by constant .1 to shave off additional 6 bytes
u/yonatan

this is great!
u/DataMeta

impressive
u/joeytwiddle

I tried to reproduce in tixy.land but overflowed a bit https://twitter.com/joeytwiddle/status/13294…
u/Qwitter

nes vibes

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pavel

remix of d/19060 by u/aaaaaz

function u(t) {

for(i=c.width|=0,x.scale(9,9);i--;)x.fillText(['✊🏻','✊🏼','✊🏽','✊🏾','✊🏿'][i%5],99+133*S(i*i),125-i/14+(7+i%7)*S(S(i)/5-2*t)**2)

Jun 6 2020 6:33 PM UTC

}// 126/140

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#blacklivesmatter

u/AndrewK

cool
u/albertmelo

beautiful!
u/aaaaaz

Thank you ^^

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