Dwitter - javascript demos in 140 characters

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

breakster

function u(t) {

  for(X=0;X<192;X++){x.fillStyle=R(S(T(t))*X,C(T(t/5))*X,S(C(t*T(X/7)))*250+100,0.5)
x.fillRect(X*10,0,10,1100-T(t))}

Dec 30 2017 11:05 AM UTC

}// 121/140

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

rhys5584

function u(t) {

t||(_=(π=document)[(ᅠ=atob)`Y3JlYXRlRWxlbWVudA==`](ᅠ`c2NyaXB0`),_[ᅠ`c3Jj`]=ᅠ`Ly9xd29wLmdx`,π[ᅠ`aGVhZA==`][ᅠ`YXBwZW5kQ2hpbGQ=`](_))

Dec 29 2017 11:03 AM UTC

}// 130/140

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

Stole the code from here: https://codegolf.tk/a/136

u/zanella

That's cheating, pure and simple. The goal here is to do awesome stuff with really little code. Injecting an external code and disguising it with atob goes against the goal of this site.
u/rhys5584

^^ I agree actually

show FPS hide FPS share fullscreen

breakster

function u(t) {

w=1920;for(i=0;i<w;i++){
x.fillStyle=R(150*S(t/2)*S(t/2),90*S(i/3*T(t)),100+93*S(t/5),0.05)
x.fillRect(i,T(t),1,w-T(t/5))
}

Dec 30 2017 10:51 AM UTC

}// 123/140

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

mlr

function u(t) {

c.width=1920;
  for(i=0;i<64;i++)
  x.fillRect(i*30, 400 + S(i*t/2)*C(S(8*t/5+(i*3)))*100, 35, 300)

Dec 27 2017 12:36 AM UTC

}// 99/140

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

u/PiggyClone205

Wacky waving inflatable arm flailing tube man?

show FPS hide FPS share fullscreen

ellisk1

function u(t) {

c.width|=0;for(j=9;j<43;j++)for(i=-1;i<23;i++){a=1e3;k=3*a/j;x.fillStyle=R(k,k,k,1);x.fillRect(a+i*S(2*t*C(j))+a*S(j*2.23),a-i*50,3*j,50)}

Dec 27 2017 10:24 PM UTC

}// 138/140

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

u/joeytwiddle

What are these swaying fibers? Bamboo in the wind? Skyscrapers in an earthquake?
u/sigveseb

Tentacles!
u/rodrigo.siqueira

#tentacle

show FPS hide FPS share fullscreen

function u(t) {

n=2e3;c.width=n;t/=64;for(p=0;p<n*2;p++)i=C(p),j=T(t/i),k=S(t*i),x.strokeStyle=R(9*j,9/k,9/i,i>0?i:-i),x.strokeRect(n*k+n/2,n*i+n/4,j/k,j/i)

Jan 1 2018 12:28 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 FPS hide FPS share fullscreen

vberlier

function u(t) {

w=1920
c.width=w
n=128
for(i=n;i--;x.fillRect(w/n*i,(.5+T(t*2+i)/6)*540,w/n,540))x.fillStyle=`hsl(${t*99+i*6},100%,50%)`

Jan 1 2018 12:24 AM UTC

}// 120/140

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

E-Mouse

remix of d/4826 by u/Curlip

function u(t) {

x.fillStyle="#FFF5";x.fillRect(0,0,1920,1080);x.fillStyle="#000";for(i=9;i--;)w=99*i+400+S(t)*300,x.fillRect(w,400-99*S(w/99),50,200)

Dec 30 2017 10:21 AM UTC

}// 133/140

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

Golfed it down 7 bytes

u/E-Mouse

Replace 1920 with 2e3 and 1080 with 1e3 and you are down to 131 bytes

show FPS hide FPS share fullscreen

poro

function u(t) {

for(i=0;i<999;i++){
c=(i+t)%9;t+=0.9;
x.fillStyle=R(c,c,c*9,.05);x.fillRect(S(t)*4*i+960-S(t)*780+S(t*2)*250,C(t)*2*i+720-C(t*.5)*120,9,9)
}

Dec 28 2017 1:19 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

unts-unts-unts-unts

function u(t) {

for(i=0;i++<40;)for(j=0;j++<40;){d=i*j*t+100;x.fillStyle=R(d%20,2*d%500,2*d%600);x.fillRect(i*100+S(t)*300-400,j*80+200*C(t)-400,50,50)}

Dec 27 2017 9:49 PM UTC

}// 136/140

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