Dweets awesomed by u/blimp

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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katkip

remix of d/5194 by u/JonasPeeters

function u(t) {

c.width=2e3
for(i=0;i<999;i++){
x.fillRect(S(i+t/5)*(C(i*t/999)+1.5)*350+960,C(i-t*5)*(S(i/99)+1.5)*60+700,15,(C(i+t/5)+1)*4+t)
}

Jul 31 2018 10:50 PM UTC

}// 130/140

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katkip

remix of d/4963 by u/typo

function u(t) {

c.width=800;a=200;b=6/a;for(i=0;i++<=a;){k=(i*t)%a*b;x.moveTo(2*a+a*C(i*b),a-a*C(i*b));x.lineTo(2*a+a*S(k),a+a*S(k));}x.stroke();

Jul 31 2018 9:54 PM UTC

}// 129/140

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Now your circle is a square :)

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blimp

function u(t) {

for(c.width|=i=509;i--;)
x.fillRect(960+Math.PI*i*C(t/1.5-i*50),800+S(t/2+i)*i/2.*2.855,i/10,i/15)

Jul 12 2018 8:13 AM UTC

}// 98/140

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u/magna

Love this!
u/fujimotos

#swarm

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colinpt

remix of d/8774 by u/Feiro

function u(t) {

with(x)for(fillRect(0,0,k=2e3,k);k--;beginPath(fillStyle="#1001"))arc(920,540,k/1,v=k%1*9+S(t*9999-k/3)+t,v+.1),strokeStyle="white",stroke()

Jun 30 2018 3:59 AM UTC

}// 140/140

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u/magna

Wow!

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Feiro

remix of d/8739 by u/firegodjr

function u(t) {

with(x)for(fillRect(0,0,k=2e3,k);k--;beginPath(fillStyle="#0001"))arc(960,540,k/4,v=k%4*1.57+S(t*3-k/280)+t,v+.2),strokeStyle="red",stroke()

Jun 28 2018 11:07 AM UTC

}// 140/140

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red is shorter than any other color! :D

u/firegodjr

Looks like a rose :D
u/Agnes

For the record, strokeStyle="tan" is as short as red.
u/magna

R(k) also seems to work
u/zanella

You can replace 1.57 with 1.6, and use this extra byte to use hex colors instead of red, like #0f0. ;)
u/zanella

Or, if you want to keep it really precise, replace *1.57 with /.64.

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trancor

remix of d/7988 by u/trancor

function u(t) {

d=(j,r)=>{x.beginPath(),x.arc(j*4+S(t*3+r)*r,T(t)*r+r*5,S(t+=j&6)*r/5+r,0,7),x.fill(),r>2&&(r/=2,d(j-r,r),d(j,r))}
d(w=(c.width=999)/2,600)

May 5 2018 8:08 AM UTC

}// 139/140

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firegodjr

remix of d/7901 by u/kdgraham

function u(t) {

function z(a,b,e,d){if(d>1){ 
x.fillRect(a+=d*S(e),b-=d*C(e),4,4) 
z(a,b,e-=2*S(t),d*=.7) 
z(a,b,e+=2*S(t*t),d)}}c.width=600
z(250,280,0,80)

May 4 2018 7:08 PM UTC

}// 140/140

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F R A C T A L P A N I C

u/BirdsTweetCodersDweet

#fractal #fern... #ifs?
u/13thptr

#recursive for sure

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blimp

function u(t) {

c.width=2000;for(i=1;i<=665;i++){xp=C(25*i)*2500;y=S(i)*450;xp=C(t/0.5)*xp+S(t/0.5)*y;y=S(t/0.5)*xp-C(t)*y;x.fillRect(960+xp,550+i,15,85)}

May 2 2018 7:00 AM UTC

}// 138/140

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johnbruin

function u(t) {

c.width=1920;
x.lineWidth=10;
for(j=0;j<6.28;j=j+.01) {
   x.lineTo(960+C(j*4)*C(t/15+j)*960,500+C(j*4+t/5)*400);
}
x.stroke();

Apr 29 2018 9:49 PM UTC

}// 127/140

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BuRRak

function u(t) {

c.width|=0;for(i=0;i<8;i++)x.arc(250+200*i,540+S(frame/15+i*30)*200,t**t/t, i -frame,-frame);x.fill();

Mar 23 2018 6:52 AM UTC

}// 102/140

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u/sigveseb

Feels very alive

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