Dweets awesomed by u/micahcowan

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: #ScaryMovies

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Xen

function u(t) {

for(c.width|=i=99;i--;x.arc(1e3+C(t*i/59)*9,500+S(i*t/69)*9,i*(7+C(t)),0,t))x.beginPath(x.stroke())

Jul 20 2018 7:14 PM UTC

}// 99/140

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B&W Psychedelic

u/DataMeta

Viiibes

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New_Core

function u(t) {

for(c.width|=a=i=99;i--;x.fill())x.beginPath(),x.arc(999,540,a*S(b=i*((~~(t/5))%9))+a*4,d=i*2+t,d-5),x.fillStyle=`hsla(${b+t*9},99%,50%,.1`

Jul 19 2018 9:23 PM UTC

}// 139/140

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u/DataMeta

Pretty cool!!
u/iverjo

#waitforit

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amator

function u(t) {

for(c.width|=i=100;--i;)for(j=60;--j;)
x.fillStyle=R(C(i)*150,S(j)*150,0),
x.fillRect(i*(b=25),j*b,b,(C(t*j*i/15*t)+1)*b/2)

Jul 18 2018 10:12 PM UTC

}// 123/140

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acorv

function u(t) {

c.width=400;for(i=50;i<180;i+=3){s=(t+i)*2;x.beginPath();x.fillStyle=R(i);x.arc((s*i)%500-50,200+(C(s+1.6)>0?1:-1)*S(s)*i,i/9,0,7);x.fill()}

Jul 18 2018 6:25 PM UTC

}// 140/140

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u/iverjo

#dots
u/joeytwiddle

#bounce

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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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BalintCsala

remix of d/8880 by u/BalintCsala

function u(t) {

c.width=500
for(i=900;i--;x.fillRect(i/3|0,50+i%3*65+S(T)*i/60,1,66))H=(C(T=i/99-t*3)*i/900+1.2)*127,x.fillStyle=R(i%3||H,i%3-1||H,i%3-2||H)

Jul 17 2018 3:39 PM UTC

}// 140/140

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Improved it a bit

u/iverjo

#flag

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atgz

remix of d/8848 by u/atgz

function u(t) {

for(c.width|=i=256;i--;)
x.fillRect(960+2*i*C(t--+i*.979),512+S(t---i)*i*2,i/9,i/9)

Jul 16 2018 8:02 PM UTC

}// 83/140

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u/joeytwiddle

He who waits be̛hi̶n̵d ͠th͟e͡ ҉wa҉ll̷

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robbyg

function u(t) {

for(j=20,h=96;h--;)for(v=54;v--;)x.fillStyle=R(z=(T(t-h*v)+1)*j,z/2,z*4),x.fillRect(h*j,v*j,j,j)

Jul 16 2018 6:34 PM UTC

}// 96/140

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u/DataMeta

I love it!
u/aleamb

awesome!

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tobias

function u(t) {

r=Math.random
x.fillStyle=`hsl(${r()*360},90%,77%)`
x.filter="blur(1px)"
x.drawImage(c,0,0)
x.filter="none"
x.fillRect(r()*2e3,r()*1e3,1,1)

Jul 16 2018 5:35 PM UTC

}// 139/140

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u/robbyg

120 chars for more room to play: r=Math.random;with(x)fillStyle=hsl(${r()*360},90%,77%,filter='blur(1px',fillRect(r()*2e3,r()*1e3,1,1),drawImage(c,0,0)
u/micahcowan

(Fixed formatting) r=Math.random;with(x)fillStyle=`hsl(${r()*360},90%,77%`,filter='blur(1px',fillRect(r()*2e3,r()*1e3,1,1),drawImage(c,0,0)
u/elochimsiemasz

Duuude

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Xen

function u(t) {

x.fillRect(9e2,499,X=C(t/2)*1.2e3,Y=S(t/2)*1e3)
x.strokeRect(9e2,499,X,Y)
x.fillStyle=`hsla(${t*99},99%,50%,.002)`
x.rotate(C(t+S(t/9))/9e3)

Jul 16 2018 5:02 PM UTC

}// 140/140

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