Dweets awesomed by u/veubeke

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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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: #Opposites

show FPS hide FPS share fullscreen

pavel

function u(t) {

with(x)for(k=n=j=255;j--;k=2,fill())for(beginPath(fillStyle=R(T=(t^k)%2*128,T,i=4));i--;)arc((j%9-t%1)*n+T,(j>>4)*n+T,64*k,a=(i-t%1)*11/7,a)

Nov 13 2018 2:29 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/yonatan

arc?!
u/anotherkitten

oh you sly dog very well done
u/pavel

:)
u/jylikangas

Very cool! You can save 3 bytes by removing the unnecessary %1 from t when calculating a and also doing <<7 instead of *128. If someone is wondering how this works using a+1 instead of a at the end may help. :)
u/katkip

#beesandbombs
u/pavel

Removing %1 at the end breaks the animation on my iPhone.

show FPS hide FPS share 1 remix fullscreen

veubeke

function u(t) {

x.shadowBlur=200+S(t)*160
for(i=12;i--;x.fillRect(960-w/2,540-h/2,w,h))x.shadowColor=`hsl(${S(t/2-i/9)*200%360},99%,50%)`,w=178*i-20,h=100*i

Nov 12 2018 8:43 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/joeytwiddle

Launch when ready

show FPS hide FPS share 1 remix fullscreen

pavel

function u(t) {

for(d=t<8,n=i=256;i--;x.fillRect(d?9*i:855+n*i*(i<2),!d*300,50,d?4:50))x.fillStyle=R(C((t|Math.abs(i-107))**.5*t)<0&&n)
x.drawImage(c,0,d*4)

Nov 12 2018 3:19 AM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Demon

Show more comments…
u/magna

Amazing!
u/iverjo

Spot on!
u/katkip

nice idea
u/ndr3w221

this is awesome!
u/and3k5

i did not expect the last bit! scary!
u/aleamb

great! #waitforit
u/lionleaf

Amazing #demon

show FPS hide FPS share 1 remix fullscreen

veubeke

remix of d/10932 by u/veubeke

function u(t) {

for(c.height=i=$=960;i--;x.fill(new Path2D('M0 2C8-5,8 8,0 0')))x.setTransform(C(X=(Y=i*9+t)*i/$)*(_=(5+i%5)*(8-C(X))/9),0,0,_,S(X)*$+$,Y%$)

Nov 11 2018 6:34 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

show FPS hide FPS share fullscreen

veubeke

remix of d/10932 by u/veubeke

function u(t) {

for(c.width|=i=128;i--;x.fillText('🐟',0,0))$=1-i%2*2,x.setTransform($*(_=5+i%5),0,0,_,2000-(i*19+$*t)*i%2080,i*i%1080)

Nov 11 2018 12:13 AM UTC

}// 118/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

u/f8f82804

#emoji
u/Xen

are they all baby sharks?
u/joeytwiddle

If so, you'd better count your fingers!
u/joeytwiddle

Save the whales :-/ https://twitter.com/RT_com/status/1060321001…

show FPS hide FPS share 2 remixes fullscreen

veubeke

function u(t) {

for(c.width|=i=128;i--;x.fill(new Path2D('M0 4Q4-2,9 3Q4 8,0 1')))$=1-i%2*2,x.setTransform($*(_=5+i%5),0,0,_,(i*19+$*t)*i%2050-70,i*i%1e3)

Nov 10 2018 9:07 PM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

show FPS hide FPS share 1 remix fullscreen

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

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

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

show FPS hide FPS share fullscreen

anotherkitten

function u(t) {

e=(a,b)=>a/b&1?b-a%b:a%b;x.fillRect(0,0,j=2e3,j);x.globalAlpha=.1;for(;j--;x.clearRect(e(t*360*S(b),1911),e(t*360*C(b),1071),9,9))b=j/1200

Nov 9 2018 6:36 PM UTC

}// 138/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

faster and cleaner version of linear ripple

u/katkip

I love this one!
u/iverjo

#waitforit

show FPS hide FPS share 2 remixes fullscreen

rodrigo.siqueira

remix of d/10900 by u/pavel

function u(t) {

for(c.width=840,s=300;s-=12;)
for(t+=.15,Q=t%4,i=6;i--;)
x.lineTo(400+s*S(A=(Q*(Q<1)+i)*1.57),25+s/2*(C(A)+2))
x.stroke()

Nov 9 2018 2:37 AM UTC

}// 121/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Spinning pyramid

u/katkip

That looks awesome
u/katkip

#pyramid

show FPS hide FPS share 1 remix fullscreen

BalintCsala

function u(t) {

eval(unescape(escape`景爨挮睩摴桼㵩㴹㭩ⴭ㭸⹴牡湳景牭⡫㴮㘲⩃⡡㵓⡴⤪ㄮ㔷⤬猽⸶㈪匨愩Ⱝ猬欬眬眩⥸⹲散琨ㄬㄬ砮汩湥坩摴栽眽㌰〬眩ⱸ⹱畡摲慴楣䍵牶敔漨⡺㴱㔰⤫匨琩⩺ⱺⵓ⡴⤪稬眬眩㭸⹳瑲潫攨⤻`.replace(/u(..)/g,"$1%")))

Nov 8 2018 7:58 PM UTC

}// 131/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Fibonacci spiral

u/katkip

Owwww woottt thats awesome
u/rodrigo.siqueira

SOURCE CODE: for(c.width|=i=9;i--;x.transform(k=.62*C(a=S(t)*1.57),s=.62*S(a),-s,k,w,w))x.rect(1,1,x.lineWidth=w=300,w),x.quadraticCurveTo((z=150)+S(t)*z,z-S(t)*z,w,w);x.stroke();
u/rodrigo.siqueira

Animated Golden Rectangle #Fibonacci Sequence
u/vain

very cool golden ratio / rectangle fx. (never seen before like this, great!)

dwitter.net | veubeke (20752)