Dweets awesomed 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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rodrigo.siqueira

remix of d/20757 by u/rodrigo.siqueira

function u(t) {

c.style='filter:sepia('
for(i=3e3,c.width|=f=g=>99*(C(i-t/2)-3)*g(V=i/128);i--;x.lineWidth=3)x.strokeRect(960+f(C),540+f(S),s=i/99*C(V-t),s)

Nov 23 2020 1:43 PM UTC

}// 140/140

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Enchanted ring #torus

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jellyedwards

remix of d/20746 by u/jellyedwards

function u(t) {

x.setTransform(28,0,0,30,800,400)
x.fillText('⊙⊙',0,2)
x.stroke(new Path2D(`m3-4c0-9 9-9 9 0M3 2c0 30 11 9 11 8q2-3 4-2M6 4c0 9 6 9 6-3`))

Nov 22 2020 10:27 PM UTC

}// 138/140

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A bit more like him

u/Xen

you made me spit beer! next level is bonzibuddy
u/jellyedwards

Oh god, I had forgotten about bonzibuddy! :D

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taupelink

remix of d/20630 by u/taupelink

function u(t) {

r=Math.random;for(i=k=214;i--;x.strokeRect(k*X,k*Y,i/t,k/t))X=r(Y=r()*5)*9,h=k*S(S(Y*.7)%C(p=S(q=1.5-X/3)*q+2)),x.strokeStyle=R(h*q,h*p,h*Y)

Nov 22 2020 7:22 PM UTC

}// 140/140

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d/20784

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Germain

function u(t) {

c.width=1980
for(var a=4;a<45;a++){
x.font=a*9+"px a"
x.fillText(a==44?"🐸":"🟢",700-C(t*3+a/5)*150,120+(a*a*2.3)/5)}

Nov 22 2020 12:48 PM UTC

}// 115/140

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#emoji

u/ciaccodavide

SnakeFrog!
u/danny@hille.dk

So I made some minor tweeks - now I'll never sleep again: for(c.width|=a=45;--a;)x.font=450-a*9+"px a",x.fillText(a==1?"🤡":"🍩",800-C(t*3+a/4)*155,800+(a**1.72*S(t)))
u/danny@hille.dk

Shave off 5 chars: for(c.width|=a=45;a--;x.fillText(!a?"🤡":"🍩",800-C(t*3+a/4)*155,800+a**1.72*S(t)))x.font=450-a*9+"px a"
u/Germain

Yuck ! :D

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Germain

function u(t) {

c.width=700
x.font="150px a"
x.fillText("👆🏼",c.a,c.b)
x.fillText("👃🏼",250,110)
onmousemove=(e)=>{c.a=e.clientX,c.b=e.clientY+50}

Nov 20 2020 8:57 PM UTC

}// 128/140

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#emoji #subtle

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tomxor

remix of d/20689 by u/yonatan

function u(t) {

for(c.width=64,i=2e4;Z=--i>>9;T=k^64?T+S(Z+C*k/9+9/Z*t*k)/k:x.fillRect(C=i/8&63,T*9-T*Z/3,1,l=Z*32-Z*Z,x.fillStyle=R(l,l+Z,l/.8))|3)k=1<<i%8

Nov 19 2020 11:12 PM UTC

}// 140/140

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One for loop to rule them all... with a moderate chance of rain

Show more comments…
u/tomxor

This was a tough golf! thanks for the challenge and awesome dweet yonatan :)
u/DataMeta

I like this golfed rendition! :]
u/yonatan

i think i like this better than the original :)
u/yonatan

what's the deal with the k^64 tho? seems like it'd spend 64 iterations building the fbm in T and then 64 more doing fillRects??
u/yonatan

k&63 I'd understand...
u/yonatan

oh right, k isn't the loop counter
u/yonatan

-1 char with i&7: for(c.width=64,i=2e4;Z=--i>>9;T=i&7?T+S(Z+C*k/9+9/Z*t*k)/k:x.fillRect(C=i/8&63,T*9-T*Z/3,1,l=Z*32-Z*Z,x.fillStyle=R(l,l+Z,l/.8))|3)k=1<<i%8
u/danny@hille.dk

Use the saved char to boost performance with i=15e3
u/danny@hille.dk

This is a fabulous golf👍
u/danny@hille.dk

excellent work u/tomxor
u/tomxor

Thanks Danny :)

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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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danny@hille.dk

remix of d/20689 by u/yonatan

function u(t) {

q=c.width=99;for(m=28;m--;x.fillStyle=R(q,m*7,m*9))for(i=q;i--;x.fillRect(i,a*(25-m),2,q))for(a=j=3;j--;a+=S((t/m*q+i)*S(m*k)*k/9)/k)k=5**j

Nov 18 2020 8:00 PM UTC

}// 139/140

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golf remix of d/20689 - better contrast. last remix of this amaizing dweet - i promise :-)

u/joeytwiddle

Great golfing!

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tomxor

remix of d/20657 by u/dnmc

function u(t) {

for(c.width&=i=8320;i--;)
x.fillRect(X=i&127,Y=i>>7,
k=S(8*t+X*X+Y*Y+X*Y)+.5,k)

Nov 18 2020 1:33 AM UTC

}// 79/140

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Nano Snakeskin

u/bandaloo

this is great! i'll definitely be using this substitute for a doubly-nested for loop
u/DataMeta

agreed, cool trick! even more succinct than the nested hack I've been using, and the perf increase from bitwise ops is welcome
u/tomxor

Yes, I've used this so much, I guess it's just more obvious in this one. I've taken technique a step further in d/20707 converting yonatan's 3 loops into one. bitwise can be very powerful to manipulate the variables a loop traverses.

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taupelink

remix of d/20630 by u/taupelink

function u(t) {

r=Math.random;for(i=k=214;i--;x.fillRect(k*X,k*Y,i/t,i/t))X=r(Y=r()*5)*9,h=k*S(S(S(C(p=Y*S(q=X%3*2-2)-2+Y%1.5)))),x.fillStyle=R(h*p,h*q,2*h)

Nov 17 2020 1:17 AM UTC

}// 140/140

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d/20654

u/joeytwiddle

Entrance to sietch as perceived by an insect with compound eyes
u/tomxor

Nice description, (and dweet) :)

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