Dweets awesomed by u/bokoskokos

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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loni_art

function u(t) {

!x.j?(x.fillRect(0,0,2e3,1e3),x.j=1):0
X=S(t),Y=S(t*.3),P=255
x.fillStyle=R(P*X,P*Y,P*(X-Y),1)
x.beginPath()
x.fillRect(P*(X+4),P*(Y+2),9,9)

Jan 12 2018 11:13 PM UTC

}// 140/140

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DarkLissajous

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DonKarlssonSan

function u(t) {

c.width|=0
x.translate(960,540)
x.fillStyle=`hsla(${t*99},50%,50%,.1)`
for(i=99;i--;x.fillRect(0,0,i*5,i*2))x.rotate(0.7+t/19)

Jan 12 2018 10:21 PM UTC

}// 126/140

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DonKarlssonSan

remix of d/5940 by u/Xen

function u(t) {

c.width|=0
x.fillStyle="#6161"
x.translate(S(t)*399+960,S(t*2.3)*299+540)
for(i=34;i--;x.fillRect(s=i*i,s,s*=-2,s))
x.rotate(S(t)*.4)

Jan 12 2018 9:46 PM UTC

}// 133/140

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FrenchToast

remix of d/5798 by u/FrenchToast

function u(t) {

c.width|=0;for(i=320;i--;){x.beginPath();x.arc(350*S(t*3)*S(i/70),2*i,40+i,0,6.28);x.fill();x.fillStyle=R(330-i,200-i,200-i);x.rotate(1.4)}

Jan 12 2018 7:18 PM UTC

}// 139/140

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u/galactustrombone

aaahh this feels so weird
u/galactustrombone

well done
u/sandromiccoli

shake it
u/joeytwiddle

Golfed to 130: with(x)for(c.width|=i=320;i--;rotate(1.4))beginPath(fillStyle=R(330-i,200-i,200-i)),arc(350*S(t*3)*S(i/70),2*i,40+i,0,6.28),fill()

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d0n.key

function u(t) {

c.width*=1;
for(i=0;i<20;i++)r=50*(2+.8*S(4*t+i+1.5)),x.beginPath(),x.arc(260+i*75,540+S(4*t+i)*80,r/5,0,9),x.fillStyle=R(r,0,r),x.fill()

Jan 12 2018 10:18 AM UTC

}// 137/140

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u/iverjo

#dots

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romstr

function u(t) {

c.width^=0
k(t*100%960)
}
function k(l){
x.fillStyle=R(l%255,70+l%255,140+l%255)
x.fillRect(960-l,540-l,l*2,l*2)
if(l>0)k(l-40)

Jan 12 2018 7:21 AM UTC

}// 128/140

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u/whackashoe

I like this pattern a lot! Btw: you could cut off a few chars by doing k=l=>{.
u/sigveseb

nice and clean style! looks great

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ellisk1

remix of d/5798 by u/FrenchToast

function u(t) {

for(c.width|=i=115;i--;)x.fillStyle=R(99-i,175-i),x.beginPath(),x.arc(960+500*C(2*t-i/15),540+200*S(1.4-i/50),150-i,0,7),x.fill()

Jan 12 2018 12:37 AM UTC

}// 129/140

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u/joeytwiddle

Grass snake
u/joeytwiddle

#worm

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zanella

function u(t) {

c.width|=0;t=t/30%1;k=1-t;m=n=0;for(i=1e4;i--;){o=(6*Math.random()|0)*1.047;m=m*t+540*C(o)*k;n=n*t+540*S(o)*k;x.fillRect(m+960,n+540,10,10)}

Jan 11 2018 9:31 PM UTC

}// 140/140

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More fractlas! More chaos games!! Yay!!!

u/zanella

*fractals
u/ETHproductions

Pretty cool. Wait, what's it doing now--oH GOD ITS CONSUMING ME PLEASE HELP
u/donbright

this is so amazing
u/iverjo

Well done

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bokoskokos

function u(t) {

c.width|=0;for(i=0,w=100;i++<18;)for(j=0;j++<10;){x.beginPath(),x.fillStyle=R(200-i*20*C(t));x.arc(i*w,j*w,50,C(t)*j,3.14+C(t)*j);x.fill()}

Jan 11 2018 3:44 PM UTC

}// 139/140

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pythech

function u(t) {

for(i=0;i<20;++i)for(j=1;j<9;)x.beginPath(),x.fillStyle=`hsl(${j*t*4},65%,50%)`,x.arc(i*120,120*j++*S(t/4),Math.abs(C(t))*64,0,9),x.fill()

Jan 11 2018 1:38 AM UTC

}// 138/140

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u/hope4tg

Dope

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