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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.

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Current theme challenge: #Food

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katkip

function u(t) {

var _0x4bed=["\x61\x67\x65\x6E\x74","\x69\x6E\x66\x6F","\x3F"];throw NREUM[_0x4bed[1]][_0x4bed[0]]+ _0x4bed[2]+frame

Aug 28 2018 2:16 PM UTC

}// 116/140

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katkip

remix of d/9421 by u/katkip

function u(t) {

if(!t){l=0;r=-1}x.fillStyle=`hsl(${(r*l)%9==(l*l*r*r*t|0)%9?0:90},99%,50%)`;x.fillRect(++r*20,l*20,20,20);if(r>98){l++;r=-1}

Aug 28 2018 7:56 AM UTC

}// 124/140

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katkip

remix of d/9496 by u/katkip

function u(t) {

c.style="background:#055";c.width^=0;x.fillStyle='#fff';x.font='1cm A';for(i=0;i<500;i++)x.fillText("❄",960+C(i)*960,(T(t/9+i*i)*1080))

Aug 28 2018 6:47 AM UTC

}// 135/140

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#snow

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katkip

function u(t) {

c.style="background:black";x.fillStyle='#fff';r=Math.random;x.font='15px A'
if(!t)for(i=0;i<300;i++)x.fillText("✴✰✯"[i%2],r()*1920,r()*1080)

Aug 28 2018 6:19 AM UTC

}// 140/140

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#stars :) If I had more space... ⋆ ✢ ✥ ✦ ✧ ❂ ❉ ✱ ✲ ✴ ✵ ✶ ✷ ✸ ❇ ✹ ✺ ✻ ✼ ❈ ✮ ✡

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f8f82804

remix of d/9489 by u/f8f82804

function u(t) {

eval(unescape(escape`攽孝㭦潲⡡㴶〻愭ⴻ⥦潲⡢㵳㴳㐬䔽敛戭ㅝ簰㭢ⴭ㭸⹦楬汒散琨猪愬截猬猬猩⥰㴹㤫愪截匨琩⼲⭅ⱸ⹦楬汓瑹汥㵒⡱㵳⨨瀯獼〩ⱱ⼷ⱱ⼲⤬䔽敛戭ㅝ簰Ᵽ㵰⵱ⱥ孢ⴱ崽振㴱㘬敛扝⬽挪㔬敛戫ㅝ⬽挪㌬䔫㵣⨷`.replace(/u(..)/g,"$1%")))

Aug 28 2018 3:59 AM UTC

}// 138/140

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Floyd-Steinberg #dithering #compressed

u/f8f82804

e=[];for(a=60;a--;)for(b=s=34,E=e[b-1]|0;b--;x.fillRect(s*a,b*s,s,s))p=99+a*b*S(t)/2+E,x.fillStyle=R(q=s*(p/s|0),q/7,q/2),E=e[b-1]|0,c=p-q,e[b-1]=c/=16,e[b]+=c*5,e[b+1]+=c*3,E+=c*7

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f8f82804

remix of d/9458 by u/f8f82804

function u(t) {

τ=4.7;for(i=2048;i--;x.fillRect(32*(i%64),32*(i/64|0),32,32))x.fillStyle=R(99+99*S(b=(C(t)*(i%64)+i/64)/3**(S(t)+1)),60*S(b+τ),99+99*S(b-τ))

Aug 28 2018 1:10 AM UTC

}// 140/140

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u/danny@hille.dk

nice

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f8f82804

remix of d/9491 by u/Xen

function u(t) {

eval(unescape(escape`楦⡴┮㈼⸰ㄩ睩瑨⡮敷⁏獣楬污瑯牎潤攨愽湥眠䅵摩潃潮瑥硴ⱻ晲敱略湣示ㄱ〪匨㤪瑞琩紩⥣潮湥捴⡧㵡⹣牥慴敇慩渨⤩Ⱨ⹣潮湥捴⡡⹤敳瑩湡瑩潮⤬朮条楮⹳整呡牧整䅴呩浥⠰ⰮㄵⰮ〱⤬獴慲琨⤬獴潰⠮㈩`.replace(/u(..)/g,"$1%")))

Aug 27 2018 11:42 PM UTC

}// 139/140

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playing notes with an evelope to avoid clicking #audio #compressed

u/f8f82804

if(t%.2<.01)with(new OscillatorNode(a=new AudioContext,{frequency:110*S(9*t^t)}))connect(g=a.createGain()),g.connect(a.destination),g.gain.setTargetAtTime(0,.15,.01),start(),stop(.2)

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ellisk1

remix of d/9453 by u/ellisk1

function u(t) {

t?X=Math.random()*2400-99:Y=0;x.fillStyle=`hsla(${3*t+X/9*C(q=t/50)+Y/5*S(q)},80%,50%,.04)`;x.beginPath();x.arc(X,Y,200,0,7);x.fill();Y=X/2

Aug 27 2018 10:47 PM UTC

}// 139/140

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Slowly shifting gradient v2

u/Xen

very nice style
u/aleamb

stylish!
u/magna

#waitforit
u/ellisk1

Thanks! Yeah it does take some time to get going ha

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Xen

remix of d/9484 by u/f8f82804

function u(t) {

if(t%1<.01)with(o=(a=new AudioContext).createOscillator())connect(a.destination),start(),stop(a.currentTime+1);o.frequency.value=99*S(t*9&t)

Aug 27 2018 9:11 PM UTC

}// 140/140

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little song for you :-P

u/joeytwiddle

Funky!
u/Xen

#audio #sound

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username

remix of d/9207 by u/MrM@_S

function u(t) {

eval(unescape(escape`搽挮睩摴栽楮湥牗楤瑨㭷楴栨砩晩汬却祬攽刨⤬晩汬剥捴⡥㵤⼳Ɽ⼶ⱥⱤ⼴⤬晩汬却祬攽✣摦攧ⱦ潮琽搯㤫❰砠稧ⱦ楬汔數琨吿❏✺❘✬搯㈮㈬攩㭯湭潵獥浯癥㴨筸ⱹ紩㴾吽砼敼砾搯ㄮ㕼礼搯㙼社搯㈮㐻`.replace(/u(..)/g,"$1%")))

Aug 27 2018 9:11 PM UTC

}// 137/140

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Tap the rectangle :) Also, thanks to @yonatan and @BalintCsala

u/katkip

Works only 1 time
u/username

@katkip No, it works indefinitely. If you are not using a cursor, you will need to tap out to get the circle again, which is wanted behavior.
u/username

Uncompressed: d=c.width=innerWidth;with(x)fillStyle=R(),fillRect(e=d/3,d/6,e,d/4),fillStyle='#dfe',font=d/9+'px z',fillText(T?'O':'X',d/2.2,e);onmousemove=({x,y})=>T=x<e|x>d/1.5|y<d/6|y>d/2.4;
u/username

d=c.width=innerWidth;with(x)fillStyle=R(),fillRect(e=d/3,d/6,e,d/4),fillStyle='#dfe',font=d/9+'px z',fillText(T?'O':'X',d/2.2,e);onmousemove=({x,y})=>T=x<e|x>d/1.5|y<d/6|y>d/2.4;
u/username

d=c.width=innerWidth;with(x)fillStyle=R(),fillRect(e=d/3,d/6,e,d/4),fillStyle='#dfe',font=d/9+'px z',fillText(T?'O':'X',d/2.2,e);onclick=({x,y})=>T=x<e|x>d/1.5|y<d/6|y>d/2.4 173, only 33 to go