Dweets awesomed by u/stiaje

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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Opposites

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f8f82804

remix of d/7280 by u/prplz

function u(t) {

for(X=240;X--;)for(Y=64;Y--;)x.fillStyle=`hsl(${X+255*(t+Y/(k=Y-72))} 90%${50*((X-120)/k+t+9&1^Y/k&1)}%)`,x.fillRect(X*8,1080-Y*8,8,8)

Aug 7 2018 11:22 PM UTC

}// 134/140

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Rainbow checkerboard #d3 #perspective #raytrace #slow

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cantelope

remix of d/9132 by u/cantelope

function u(t) {

for(x.fillRect(0,0,i=4e3,i),w=960;i--;x.clearRect(w+X/Z*w,(25+S(t)*4+S(d/(z=300)-t)*4)/Z*w,s=z/Z,s))X=i%(v=64)-32,Z=-32+i/v|0,d=X*X+Z*Z,Z+=v

Aug 5 2018 10:39 PM UTC

}// 140/140

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u/jdspugh

Awesome

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stiaje

remix of d/9115 by u/richev

function u(t) {

c.width|=0
x.stroke()
x.translate(960,540)
h=l=>x.fillRect(-5,-50,9,l)
r=a=>x.rotate(a)
r(7*t+3)
h(500)
r(t/17-t*7+7)
h(350)

Aug 5 2018 11:16 AM UTC

}// 124/140

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Golfed by removing a lot of accuracy.

u/richev

nice!

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stiaje

remix of d/9108 by u/magna

function u(t) {

with(x)for(i=300;i--;stroke())beginPath(strokeStyle=`hsl(${290-i},99%,60%`),arc(960,1e3,390+i,0,7),font="9em A",fillText('☁️     ☁️',99,250)

Aug 5 2018 11:07 AM UTC

}// 140/140

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Squeezed in some clouds based on golfing by u/magna and the cloud code from u/richev

u/stiaje

Any ideas for more interesting positioning of the clouds?

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richev

function u(t) {

x.lineCap='round'
x.lineWidth=20*t
x.beginPath()
c=6.28*t-1.5
x.strokeStyle=`hsl(${t*72},99%,60%)`
x.arc(960,540,270,c,c+.2)
x.stroke()

Aug 5 2018 6:54 AM UTC

}// 135/140

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Expanding rainbow loop

u/lionleaf

Very satisfying to watch #rainbow #donut

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firegodjr

remix of d/9106 by u/richev

function u(t) {

with(x)for(i=320;i--;stroke(),font="500pt x",fillText('☁️',i%2*a,a))beginPath(x.strokeStyle=`hsl(${-i-40},99%,60%`),arc(a=960,800,i+360,3,0)

Aug 5 2018 1:47 AM UTC

}// 140/140

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Challenge accepted ^^

u/iverjo

Haha, I knew someone would accept that challenge ^^
u/lionleaf

#rainbow #clouds

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richev

function u(t) {

for(i=390;i<690;i+=.1)
x.beginPath(),
x.strokeStyle=`hsl(${-i+680},99%,60%)`,
x.arc(960,900,i,3.14,0),
x.stroke();

Aug 5 2018 12:07 AM UTC

}// 114/140

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A minimal rainbow - can anyone squeeze in a cloud at each end? (I ran out of characters)

u/magna

100: for(i=300;i--;x.stroke())x.beginPath(x.strokeStyle=hsl(${290-i},99%,60%),x.arc(960,1080,390+i,0,7)

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mvs202

function u(t) {

χ=S(t)*960
c=(h,a,b)=>{χ<0?x.fillStyle=`hsl(${h%360},99%,50%,0.2`:0
x.fillRect(960-χ,a,χ*2,b)}
c(t*53,0,300)
c(t*59,315,150)
c(t*47,480,600)

Aug 4 2018 3:45 PM UTC

}// 140/140

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u/katkip

This can be good as a animated desktop wallpaper
u/magna

Keeps on giving
u/iverjo

#colors
u/lionleaf

Beautiful! Broken on #Edge and some other #browsers though. Should be possible to fix, but tagging it now so it's easy to find later :)
u/mvs202

Yeah, the problem is Edge doesn't like the 4th parameter in hsl() - I would need hsla() for that. Surprisingly, no one bothered by the lack of a closing paran in the hsl function!

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mangoose

function u(t) {

c.width|=0
x.lineWidth=3
for(i=0;i<(p=Math.PI)*10;i+=(1/(2*p)))
x.lineTo(960+(S(t+i*18)+C(i*4.5+t*.6))*250,540+480*C(t/2+i*9))
x.stroke()

Aug 3 2018 3:03 AM UTC

}// 137/140

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u/Qwitter

attractive shape

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atgz

remix of d/3202 by u/Starchaser

function u(t) {

c.width=1920;for(i=20;i--;){x.setTransform(1,0,0,1,960,540);x.fillStyle="tan",x.rotate(3.46/10*i-t);x.fillRect(-12,150+T(t+++i*3)*25,24,85)}

Jul 18 2018 8:19 AM UTC

}// 140/140

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u/loni_art

funky
u/aleamb

cool!
u/stiaje

nice loading animation!

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