Dweets awesomed by u/lionleaf

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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joeytwiddle

function u(t) {

r=()=>Math.random()*2520;for(i=99;i--;)x.fillStyle=`hsla(${r()},99%,50%,.01`,x.beginPath(),x.arc(r()-99,r()/2-99,r()**3/4e7,0,7),x.fill()

Oct 3 2017 4:47 AM UTC

}// 137/140

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Show more comments…
u/cantelope

mmm love it
u/sigveseb

This needs more awesome votes!
u/Xen

got mine <3
u/iverjo

This one looks better in Chrome than in Firefox
u/joeytwiddle

Firefox users: please replace 50% with 33% or 66%
u/joeytwiddle

I guess this is exploiting rounding behaviour. RGB clouds emerge first, CMY later.
u/joeytwiddle

It has stopped working in Chrome. Now Chrome needs the same fix as Firefox!

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Xen

remix of d/3228 by u/cantelope

function u(t) {

t?v=S(t*4):c.width=1e3
for(i=1e4;i--;x.fillRect(500+S(p=q*(t*v)+v)*q,290+C(p)*q,9,9))x.fillStyle=`hsla(${(t*2*(q=i/9))*C(t)},99%,40%,.2)`

Oct 3 2017 12:20 AM UTC

}// 137/140

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last one was broken for chrome users sorry... firefox auto-fix's a set alpha on hsl().

u/magna

Nice!
u/Xen

thanks :)

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magna

function u(t) {

// Rendering
}
{
// Initialization
// a) Util function: a=(p,q)=>{
// b) Obj init: a={
// c) Just a code block: {

Oct 2 2017 3:05 PM UTC

}// 113/140

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"Global initialization" hack

u/joeytwiddle

Oooh nice find, but naughty!

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lurifax

function u(t) {

w=c.width=64;for(d=t?d:[],i=0;i++<w*42;i<w*2?d[w*42-i]=666*Math.random():x.fillRect(i%w,i/w,2,2))x.fillStyle=R(z=d[i]=d[i+w+~~S(t)]*.9,z/2)

Oct 1 2017 7:50 PM UTC

}// 139/140

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Fire! Fire! Fire?

u/iverjo

#fire

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rgarner

remix of d/3224 by u/rgarner

function u(t) {

a=2e3;c.width=a;x.fillRect(0,0,a,a)
for(i=0;i<a;i++){x.rotate(i/t/i);x.fillStyle=`hsl(${i*t/9},99%,50%)`
x.fillRect(i*C(t),i*S(t)*7,99,33)}

Oct 1 2017 6:19 PM UTC

}// 139/140

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Settles down after an initial chaotic period. Best experienced in full screen with loud music. In IE3.

u/Xen

Nice! try: x.rotate(t/i%13)

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cantelope

function u(t) {

for(i=(w=c.width=1e3)*5,x.fillRect(0,0,w,w);i--;)x.clearRect(w/2+S(p=(q=Math.sqrt(i)*9)/(1.7545+(v=S(t))/100)+v)*q,290+C(p)*q,5,5)

Oct 1 2017 7:29 AM UTC

}// 130/140

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a colorized version: https://codegolf.tk/a/191

u/lurifax

Truly awesome! Your stuff is so clean :)
u/cantelope

<3
u/donbright

classic

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Xen

remix of d/3224 by u/rgarner

function u(t) {

for(c.width|=i=200;i--;x.fillRect(900+i*C(Z),200-i*S(Z),i,i))x.rotate(.006),x.fillStyle=`hsla(${Z=t*i/2},99%,50%,.6)`

Sep 30 2017 11:08 PM UTC

}// 117/140

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u/rgarner

This is indeed a nice remix :)

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rgarner

function u(t) {

c.width=1920
for(i=0;i<200;i++){
  x.rotate(0.01)
  x.fillStyle=`hsl(${i*3},99%,50%)`
  x.fillRect(i*S(t)*10+1500,i*C(t)*10+200, 99, 33) 
}

Sep 30 2017 8:57 PM UTC

}// 140/140

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u/Xen

nice dweet, done you a remix #3225

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lurifax

function u(t) {

for(i=9,e=T(t)*99;--i;x.fillStyle=`hsl(${S(t)*180+180},99%,50%`)x.fillRect(S(d=i*.8+t)*e+960,C(d)*e+540,9,9);x.drawImage(c,-9,-9,1938,1098)

Sep 30 2017 4:07 PM UTC

}// 139/140

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u/Xen

my kind of dweet :D
u/donbright

part where it comes back in from the border is excellent

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lurifax

function u(t) {

c.width|=0;for(i=5;--i;)for(j=91;--j;x.fillStyle=`hsl(${j*4},99%,50%)`)x.fillRect(960+500*S(d=j*.0698)*C(e=t+i*.7853),540+500*C(d)*S(e),9,9)

Sep 30 2017 5:16 AM UTC

}// 140/140

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u/Xen

very nice
u/lurifax

Remix #3241- With fix for the annoying black dot and golfed 17b :)

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