Dweets awesomed by u/sfz

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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mxfh

function u(t) {

b=1;h=1080;w=960;for(i=l=2*w;i--;b=!b,x.fillStyle=b?"#000":"#FFF"){x.fillRect(i+b,l,2,C(i/w-1)**2**S(i/w+t)*-h+b)}x.drawImage(c,0,-1,l,h)

Mar 13 2017 4:03 AM UTC

}// 137/140

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u/recursive

Looks really good in fullscreen

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recursive

function u(t) {

x.fillRect(C(t/5)*960+960,S(t)*270+270,9,9)
x.clearRect(0,h=540,2e3,h)
for(i=544;i-=8;)x.drawImage(c,0,h-i,2e3,8,0,h+i*(S(i+t)/9+1),2e3,8)

Mar 12 2017 11:00 PM UTC

}// 138/140

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Reflections

u/Renaud___

Nice idea
u/codeslaw

love this
u/FireFly

Lovely reflections :D

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codeslaw

function u(t) {

for(c.width|=0,i=6;i<10;i++){for(e=0;e<352;++e){
x.arc(e*7-400,S(e/194)*i*130-300,99+C((e-t*35)/i)*C(e/10)*20,7,0)}x.stroke();x.beginPath()}

Mar 12 2017 10:05 PM UTC

}// 140/140

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u/recursive

Lumpy intestines?
u/codeslaw

Aren't we all? :D

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sfz

remix of d/2072 by u/sfz

function u(t) {

c.width|=h=540
for(i=42;i--;){a=S(t)*h/i
b=C(t)*h/i
x.beginPath()
x.arc(960,h,i*i,0,Math.atan2(a,b),0)
x.fillStyle=R(0,a*b,3*i,.1)
x.fill()}

Mar 12 2017 6:36 PM UTC

}// 140/140

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sfz

function u(t) {

for(i=99;i--;){a=(S(t)+1)*2e3/i
b=(C(t)+1)*1e3/i
x.beginPath()
x.arc(0,0,(a**2+b**2)**.5,0,Math.atan2(a,b),0)
x.strokeStyle=R(b)
x.stroke()}

Mar 12 2017 5:39 PM UTC

}// 140/140

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sfz

function u(t) {

for(i=7;i>0;i-=.1)for(a=j=600;j>=-a;j-=56)x.fillStyle=R(0,0,(j+a)/i,.1),x.fillRect(960+j*(Math.atan(z=i+t)-T(z)),540-320*(S(z)+C(j+t)),9,9)

Mar 12 2017 4:43 PM UTC

}// 139/140

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u/donbright

really like the feel and rythym of this one.
u/donbright

oh i know why! this is the Hooloovoo that Douglas Adam's talked about, the hyperintelligent shade of blue?
u/sfz

hahah well, I wasn't so ambitious, just messing with atan

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recursive

remix of d/2065 by u/recursive

function u(t) {

w=C(t)
h=S(t)
for(c.width|=s=i=H=512;i--;x.lineTo(960+(X*w-S(i)*h)*H,H+(Y*w-Z*h)*H))X=C(o=i/-~t),Y=C(i)*S(o),Z=S(i)*w+X*h
x.stroke()

Mar 12 2017 6:50 AM UTC

}// 132/140

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u/sfz

It looks like a horned shark egg case, of all things

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kchplr

function u(t) {

for(c.width|=0,i=400;i--;T=((1+S(t))/2)**3,x.fillRect(490-(S(X*T)*500-500)*T,540+C(X)*500,S(X*T)*1000*T+1000*(1-T),10))X=i%400/128

Mar 11 2017 11:25 PM UTC

}// 130/140

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u/recursive

Has the character of a viscous fluid somehow.

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kchplr

function u(t) {

for(c.width|=0,i=4940;i--;Y=3+i/380|0,x.fillRect(960+(S(X+t+C(i+t)*Y/9)+S(Y+t)*Y/2)*(50+Y*9),540+(C(X)+C(Y+t/9)*Y/3)*(50+Y*9),Y,5))X=i%380

Mar 11 2017 10:05 PM UTC

}// 139/140

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aemkei

remix of d/2008 by u/RavenWorks

function u(t) {

t||(w=z=a=i=0);for(I=4;I--;)i+=.005,x.fillRect(w*4+1150,z*4+450,4,4),w+=C(a+=S(i%50*C(i%100))),z+=S(a);x.fillStyle=`hsl(${t*99},100%,50%)`

Mar 11 2017 8:40 PM UTC

}// 138/140

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u/sfz

This is great, and what a luxurious use of 100's instead of 99's :P

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