Dweets awesomed by u/trupples

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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BuRRak

function u(t) {

for(d=(+new Date).toString(2),c.width=v=d.length;v--;)x.fillRect(v,0,d[v],99);

Apr 28 2018 10:36 AM UTC

}// 78/140

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Binary clock

u/BuRRak

This could be done using bitwise but for some reason it doesn't work
u/E-Mouse

Made a similar thing a while ago, not a clock but a second counter. d/4708

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trancor

function u(t) {

w=(c.width=999)/2;h=w/2;p=[];t/=8
for(j=12;j--;p.map((k,i)=>{x.moveTo(...z);x.lineTo(...k)}))
p.push(z=[S(t+j*4)*w+w,C(t+j)*h+h])
x.stroke()

Apr 27 2018 5:32 PM UTC

}// 140/140

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Thanks u/prplz for your golfing help to visualize bell numbers!

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Cistoran

remix of d/7275 by u/lionleaf

function u(t) {

d=700
for(c.width+=i=0;i<d;){X=T(2000/i)
Z=T(200*i)
B=(1-Z*T(t)+X*T(t))/2000
x.fillRect(d+(X*C(t)+Z*S(t))/B,d+T(200*i++)/B,.03/B,.03/B)}

Apr 26 2018 9:32 PM UTC

}// 136/140

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BuRRak

function u(t) {

for(i=c.width=99;i--;)for(j=56;j--;)x.fillRect(i,j,T(i|j+j|frame)*0.5+0.5,1)

Apr 26 2018 3:41 PM UTC

}// 76/140

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u/sigveseb

#glitch

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BuRRak

function u(t) {

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

Apr 25 2018 3:56 PM UTC

}// 77/140

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Inspired by Neon City @jylikangas

u/BuRRak

I could save 4 bytes by using t*60 instead of frame and removing the 0 in decimal numbers but whatever
u/BalintCsala

x*.5 is x/2

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lcfrdvx

function u(t) {

for(i=0;i<60;i++){x.setTransform(1,0,C(t*0.5%Math.PI),1,0,C(i+t*10)*10);x.fillStyle=`hsl(${t*10},90%,60%)`;x.fillRect(860,300+i*10,10,10)}

Apr 25 2018 8:38 AM UTC

}// 138/140

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CocoMeister

function u(t) {

c.width=1920
for(i=0;i<1920;i+=10){
x.fillStyle='hsl('+ S(i*9+S(t/2)*10)*50+',90%,50%)'
x.fillRect(i,S(i*9+S(t/2)*10)*200+600,50,50)
}

Apr 25 2018 5:23 AM UTC

}// 134/140

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u/BalintCsala

#swine
u/BalintCsala

Oh fuck, I wanted to write #sine, I guess this stays then
u/CocoMeister

oops
u/joeytwiddle

A legend is born

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p01

function u(t) {

c.style.background="#070";x.font='320px a';s=1-t%1;x.fillText('🃏',640*(s*2-C(t|0)),999-600*Math.abs(S(~t)*C(s*6)*s))

Apr 24 2018 8:31 PM UTC

}// 116/140

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🃏 VICTORY!!! 🃏

u/magna

#solitaire
u/vain

haha.... nice one! :-)

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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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dogspace

function u(t) {

c.width|=0,b=(10*t>>>0).toString(2),b.split("").reverse().forEach(function(t,l){x.fillStyle=1==t?"black":"red",x.fillRect(20*l,400,10,400)})

Feb 16 2018 6:07 AM UTC

}// 140/140

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simple way of doing ACTUAL binary

u/BirdsTweetCodersDweet

Except it goes right to left... and way too fast to even see what is happening... I still think mine's better :P
u/BirdsTweetCodersDweet

d/6622 to be exact ;D

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