Dweets awesomed by u/yokljo

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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Current theme challenge: #Opposites

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jylikangas

function u(t) {

for(c.width=j=-1;++j<99;x.fillText(T=!j||3/7,-41,48))for(i=9;i--;x.fillRect(i*8+j+(i&2),j,W=!j*300|4+i/8,W*9))x.fillStyle=R(v=j*999,v,v,T/j)

May 1 2018 10:08 AM UTC

}// 140/140

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Capitalism poster tribute

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CocoMeister

function u(t) {

for(i=0;270>i;i++)x.fillRect(frame*T(i)+960,40*t,2,2);x.fillStyle="hsl("+2*frame*T(i)+",70%,50%)",x.rotate(3e-4*C(t))

May 1 2018 8:23 AM UTC

}// 117/140

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u/magna

Pretty!
u/katkip

#synthwave

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joeytwiddle

function u(t) {

c.width=420;x.scale(25,25),i=0;for(j of '🌇🌆🌅🌉🌃🌌⛺🌄')k=4*C(6.28*i++/8-t/5)-3,x.globalAlpha=k<0?0:k,x.fillText(j,3,9)

Apr 30 2018 10:27 AM UTC

}// 114/140

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Stellar-themed serene scenes

u/lionleaf

Nice one! #emoji
u/joeytwiddle

Blurred out of the park in Chrome v83 on Linux
u/joeytwiddle

Fixed version: c.width=420;x.font="13em'",i=0;for(j of "🌇🌆🌅🌉🌃🌌⛺🌄")k=4*C(6.28*i++/8-t/5)-3,x.globalAlpha=k<0?0:k,x.fillText(j,75,185)

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jylikangas

function u(t) {

c.width=-1
for(q=j=8;j++<21;T=65+~(t/6)%5*9)for(i=300;i-=2;x.clearRect(i,Y,1,1))x.fillRect(i,Y=j*5+(h=C(i/T)*35+(q+=S(i/j))),j/7,S(t)+T/2-h)

Apr 29 2018 10:22 AM UTC

}// 140/140

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Remote Islands

u/iverjo

Cool! After a while it shows multiple groups of islands
u/iverjo

#water #islands #landscape
u/BuRRak

Making of coming soon i hope
u/donbright

#art

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trancor

remix of d/7820 by u/trancor

function u(t) {

!t?h=(c.width=w=99)+5:0;s=S(t)*9+29;for(i=0;i<w*h;i+=7){j=i%w;k=i/w;x.fillStyle=R(C(t+S(j+k/3)*C(i*k)*3)*255,0,k,.1);x.fillRect(j-6,k,s,s);}

Apr 27 2018 1:18 AM UTC

}// 140/140

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u/joeytwiddle

mmm nice #texture
u/Agnes

"That's gotta be... that's gotta be Kane!"
u/aleamb

nice!

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SpecterPainter

function u(t) {

x.fillStyle="#3061"
x.fillRect(0,0,2e3,2e3)
for(i=-9;i<1900;x.fillStyle=`hsl(${i/9%214},99%,60%)`)
x.fillRect(i+=3,540*(1+T(t+i/7)/3),21,31)

Apr 26 2018 5:33 PM UTC

}// 140/140

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u/firegodjr

Rainbow carbon fiber!
u/prplz

really cool stuff
u/iverjo

#rainbow

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zgrep

function u(t) {

r=Math.random,A=!t?[[960,1100,4.7]]:r()<.001**t?[...A,...A]:A.map(p=>[X=p[0]+9*C(a=p[2]),Y=p[1]+9*S(a),a+r(x.fillRect(X,Y,9,9))-.5])

Apr 25 2018 9:32 PM UTC

}// 132/140

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A growing tree.

u/zgrep

Viciously golfed thanks to u/FireFly and their JS golfing prowess.
u/trancor

I just facepalmed... !t is so much cheaper than t==0 (I've been using...).Well done on the mapped expansion, interesting way to generate a ton of objects.

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BuRRak

remix of d/7796 by u/BuRRak

function u(t) {

for(i=c.width=99;i--;)for(j=56;j--;)x.fillRect(i,j,S(i/j+t*60/32)*0.5+0.5,1)

Apr 25 2018 4:06 PM UTC

}// 76/140

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Why does this look 3d to me

u/BalintCsala

Parallax scrolling probably

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Agnes

function u(t) {

for(w=c.width|=i=9;i--;)x.rect(400+i*100+S(t)*300,400,50,200);x.clip();for(i=1e3,A=Math.random;i--;x.arc(w*A(),1080*A(),3*A(),0,7));x.fill()

Apr 25 2018 9:40 AM UTC

}// 140/140

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Noisy default

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hollo47

function u(t) {

c.width=g=999;for(i=-70;40>i;i++)for(j=1;80>j;j++)f=500*i,h=j-t%1,l(),f+=500,l();function l(){x.lineTo(500+f/h,(g+270*S(7*f))/h)}x.stroke();

Apr 24 2018 2:03 PM UTC

}// 140/140

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Further learning perspective. Landscape experiment!

u/joeytwiddle

That's cool! #landscape #perspective
u/jylikangas

Nice! There are some golfing opportunities. 124 byte version...for(c.width=g=999,i=-70;40>i++;)for(j=80;--j;l(f+=500))(l=e=>x.lineTo(500+f/h,(g+270*S(7*f))/h))(f=500*i,h=j-t%1) x.stroke()

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