Dweets awesomed by u/username

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: #Food

show FPS hide FPS share fullscreen

Xen

remix of d/205 by u/iverjo

function u(t) {

c.width=2e3;n=899;for(i=2;i<n;i+=2)s=2/(9.1-(t+i/29*C(t/4))%9),x.beginPath(),j=i*.69+t,x.lineWidth=s*s*4,x.arc(n,520,s*99,j,j+1),x.stroke()

Nov 14 2017 7:59 PM UTC

}// 139/140

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

Give it 30 seconds ;-)

show FPS hide FPS share fullscreen

magna

remix of d/3486 by u/cantelope

function u(t) {

for(x.globalAlpha=.07,x.fillRect(0,0,i=2140,i);i--;)x.clearRect(i*25%2e3+S(p=i*3+(k=C(t*2+i*9)**9))*(v=S(i*171+t)**99*50),i%1080+C(p)*v,4,4)

Nov 9 2017 3:43 PM UTC

}// 140/140

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

Taking turns

u/cantelope

:D
u/crimbles

Makes me feel itchy

show FPS hide FPS share 1 remix fullscreen

mmastrac

function u(t) {

c.width|=32;for(p in d=Date(x.scale(n=16,n)))for(i in d)' {"^î§m}*ÿï'.charCodeAt(+d[n+p*1]+1)>>i&1&&x.fillText(["▏▕▁▔▏▕▁"[i]],p*n,i>3?n+9:n)

Oct 25 2017 1:59 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/sigveseb

very clever!
u/iverjo

#clock
u/katkip

woooow

show FPS hide FPS share 1 remix fullscreen

magna

remix of d/2633 by u/magna

function u(t) {

w=c.width=320
for(j=14;j--;)for(i=8;i--;)'ŁŃŇŏşſƿȿşśűŰƠƠ'.charCodeAt(j)-w&1<<i&&x.fillRect((S(t*3)**5+1)/2*w+i,(C(t*5)**7+1)/5*w+j,1,1)

Oct 10 2017 8:12 PM UTC

}// 135/140

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

Mouse hijack

u/sigveseb

Lol cool
u/lionleaf

Haha, nice one! Didn't quite have the intended effect on my phone, though.
u/magna

#mousepointer

show FPS hide FPS share fullscreen

Xen

remix of d/2646 by u/magna

function u(t) {

for(x.drawImage(c,C(t)*9,Z=S(t)*9),i=209;i--;x.stroke())x.beginPath(x.strokeStyle=R(i*T(i),i/T(i))),x.arc(960,550,x.lineWidth=i,a=Z-i*6,a+1)

Sep 27 2017 7:23 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/lionleaf

Beautiful! What a remix ;)
u/donbright

brilliant
u/Xen

thank you, was thinking loading screen lol

show FPS hide FPS share 2 remixes fullscreen

cantelope

function u(t) {

with(x)for(i=c.width|=0,font="51px a";i--;translate(i*36%1980,(i/55|0)*36),rotate(i%9/5-t*4),fillText('＋',-25,18),restore())save()

Sep 27 2017 2:03 AM UTC

}// 130/140

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

fullscreen or go home... (thx to @xem for idea to use unicode glyphs)

u/innovati

So beautiful
u/lionleaf

Cool! Reminds me of d/134 :D
u/alien

wow *__*
u/p01

🐝💣 ;)

show FPS hide FPS share fullscreen

Xen

remix of d/3056 by u/Xen

function u(t) {

x.fillText(x.drawImage(c,480*(t%3|0),540*(t%3%2|0),960,540),9,9)

Aug 10 2017 11:59 PM UTC

}// 64/140

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

64b Sierpinski Triangle

u/kchplr

60bytes: x.fillText(x.drawImage(c,480*(V=t%3|0),V%2*540,960,540),9,9)
u/magna

Oh yeah? How about EXACTLY 140 bytes: 'use strict';function renderSierpinskyTriangle() { x.fillText(x.drawImage(c,480*(V=t%3|0),V%2*540,960,540),9,9) }renderSierpinskyTriangle();
u/Xen

58bytes: x.fillText(x.drawImage(c,(V=t%3|0)*99,V%2*99,960,540),9,9)
u/iverjo

#sierpinski

show FPS hide FPS share 1 remix fullscreen

artfarnaa

function u(t) {

 for (c.width|=a=200;--a;x.arc(960+S(G+t)*400,
 540+C(t+G*1)*400,a%2*137*Math.abs(S(t))*4,0,
 6.2832))x.moveTo(G=a/2|0,0)
 x.fill('evenodd')

Aug 8 2017 1:52 AM UTC

}// 140/140

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

Show more comments…
u/kchplr

Great !
u/sigveseb

Awesome!
u/ninerdelta

stupid question, but why c.width|=a=200? I was tinkering with this code and just made it a=200 and the fps drops significantly.
u/kchplr

ninerdelta: I think that the reason is that c.width|=something is not only clearing the canvas but also the 2d context. Without it each iterations keeps adding arcs to the current path, by the 10th frames there are 2000 arcs to redraw, by the 50th frames there are 10000, etc. In a, err, "non-cold golfing codebase" you could avoid this by using beginPath and closePath.
u/kchplr

"cold golfing", superb. I meant code golfing...
u/ninerdelta

ah that makes sense, thanks!
u/donbright

now this is fine work

show FPS hide FPS share 1 remix fullscreen

cantelope

function u(t) {

for(K=128,E=20,H=j=54;j--;)for(i=99;i--;x.fillRect(X,Y,E,E))x.fillStyle=R(K+S(J=((X=i*E)**2+(Y=j*E)**2)**(.6-C(t)/5)/H)*K,K+C(J)*K,K-S(J)*K)

Aug 4 2017 9:26 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/sigveseb

Pretty
u/cantelope

ppl seem to either love or hate my more visually stimulating dweets. I agree that it's pretty, but someone else complained that it is an epilepsy-causing abomination that should be stopped. :s
u/joeytwiddle

One of your dweets overheats my laptop and makes it shut down
u/cantelope

:s do you know which one? this one?

show FPS hide FPS share fullscreen

spbyrne

function u(t) {

h=960,c=128,x.beginPath(),x.fillStyle=R(S(t)*c+c,S(t+2)*c+c,S(t+4)*c+c),x.arc(h*.8+(h*.6*S(t)),h*.6,(h/3+S(t)*c),t/2,t/2+2),x.fill()

Jul 31 2017 12:48 AM UTC

}// 133/140

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

u/donbright

great job

dwitter.net | username (19464)