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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: #Food

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xem

remix of d/3326 by u/xem

function u(t) {

for(i=0;i<65;i++)for(j=0;j<65;j++)x.fillStyle=R(i*9,j*9,C(t)*255),x.fillRect(900+400*S((i+t/9)*3)*C((j+t/9)*1.5),500+400*S((j+t/9)*1.5),5,5)

Oct 21 2017 9:45 AM UTC

}// 140/140

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made by mistake while working on a rotating sphere :p

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kchplr

remix of d/3105 by u/kchplr

function u(t) {

for(c.width|=i=0,f=t*3%2|0;++i<256;)'|þ᧺뽾똿곿객︿㯴Ǽø'.charCodeAt(f?i>>4:15-(i>>4))&1<<i%16|0&&x.fillRect(i>>4<<5,i%16<<5,32,32)

Aug 25 2017 10:56 AM UTC

}// 128/140

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Sprite animated with simple mirroring

Show more comments…
u/kchplr

can actually make it move under 140 chars: for(c.width|=i=0,f=t*5%2|0;++i<256;)'|þ᧺뽾똿곿객︿㯴Ǽø'.charCodeAt(f?i>>4:15-(i>>4))&1<<i%16|0&&x.fillRect(i>>4<<5,(i%16+t*5<<5)%1e3,32,32)
u/sigveseb

Very nice, cool tricks
u/donbright

excellent
u/FireFly

Very nice! Where is the sprie from? For some reason it feels really familiar…
u/kchplr

@FireFly: Possible :) It's a NPC from The Legend of Zelda: Oracle of Ages
u/13thptr

#hiddengem #bitmap

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Xen

remix of d/3101 by u/kchplr

function u(t) {

f=frame
'p}¶¼<¼¶}p'.charCodeAt(f/8|0)&1<<f%8|0&&x.fillRect((f/8|0)*9*11,f%8*9*11,99,99)

Aug 24 2017 11:50 PM UTC

}// 89/140

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artfarnaa

function u(t) {

 for (c.width|=a=12;--a;x.arc(960+S(G+t)*400,
 540+C(t+G*1)*400,a%2*137*Math.abs(S(t))*4,0,
 6.2832))x.moveTo(G=a/2|0,0)
 x.fill('evenodd')

Aug 8 2017 1:22 AM UTC

}// 139/140

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u/donbright

great use of evenodd

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cantelope

remix of d/3028 by u/cantelope

function u(t) {

for(x.fillRect(0,0,2e3,2e3),W=960,j=99;--j;)for(i=9;i--;x.clearRect(W+S(p=.7*i+j/4-6.03*V)/Z*W-Z*9,540+C(p)/Z*W,s=99/Z,s))Z=j-t*6+(V=t*6|0)

Aug 7 2017 3:56 AM UTC

}// 139/140

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change C(p) to C(i) for kicks

u/New_Core

try this... for(x.fillRect(0,0,2e3,2e3),Z=V=W=960,j=950;--j;Z=j%98-t*6+(V=t*6|0))x.clearRect(W+S(p=t+j/4-6.03*V)/Z*W-Z*9,540+C(p)/Z*W,s=99/Z,s)

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p01

function u(t) {

for(x.beginPath(i=1,q=t*99&124);i-=1/32;c.style.filter='invert(')x.lineTo(600+i*720,99+q*7-(x+i).charCodeAt(i*q*q%19)*S(i*3)**19);x.stroke()

Jul 27 2017 9:31 PM UTC

}// 140/140

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JOY-DIVISION

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u/p01

Best seen in fullscreen while listening to JOY DIVISION by UNKNOWN PLEASURES
u/p01

for the code golfers around, I got this one down ~112bytes without the colors and less interesting noise
u/raurir

Well, I guess it's the thought that counts
u/p01

Thanks for bringing up JOY DIVISION on Slack - https://www.dwitter.net/d/2108 is super well done as well.
u/magna

Is there a Slack for Dwitter?
u/FireFly

There is a general JS golf slack with a lot of dweeters in it at jsgolf.club
u/sigveseb

kinda reminds me of life on the grid from solskogen this year: http://www.pouet.net/prod.php?which=70987
u/rodrigo.siqueira

#joydivision Here is the original Ph.D. dissertation page where this were published: https://twitter.com/ChristiansenJen/status/1…

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cantelope

remix of d/2309 by u/cantelope

function u(t) {

x.fillRect(0,0,i=2e3,2e3);for(g=i/2;i--;x.clearRect(960+l*S(t)*g/Z,540+C(p)*i/Z*g,s=2e8/Z/Z,s))l=S(p=i*2.1+t*(i<1e3?-1:1))*i,Z=g*4.5-l*C(t)

Jul 27 2017 6:43 AM UTC

}// 139/140

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u/sigveseb

kewl
u/iverjo

stylish

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Rybar

function u(t) {

c.width=1920;
for(i=0;i<300;i++){
x.fillRect(i*10.1+S(i*t/10)*100, 340+S(i*t/15)*200, 10, 400)
}

Jul 25 2017 5:13 PM UTC

}// 96/140

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u/Xen

first word that entered the cranium was 'YES!', thats awesome.
u/Xen

first word that entered the cranium was 'YES!', thats awesome.
u/Xen

remix #2942

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cantelope

function u(t) {

for(x.fillRect(0,0,i=(W=960)*2,i);i--;)x.clearRect(W+W/(Z=6+C(p=i/200+S(t)/(V=i/W*((Y=(i/50+t)%4-1)-3)/(2+Y))+t)*V)*S(p)*V,540+W*Y/Z,9,9)

Jul 15 2017 6:49 PM UTC

}// 137/140

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Special thanks to p01 for helping to golf this. <3

u/sigveseb

looks good!
u/donbright

fine work
u/joeytwiddle

#organic

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yonatan

remix of d/2643 by u/yonatan

function u(t) {

c.width=128;for(J=X=64;X>-J;X--)for(K=Y=32;Y>-K;Y--)D=(X*X+Y*Y)**.5,x.fillStyle=`hsl(${D-t*99^T(X/Y+t*9)},50%,${D}%`,x.fillRect(X+J,Y+K,1,1)

Jun 4 2017 11:28 PM UTC

}// 140/140

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