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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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metamero

remix of d/11467 by u/metamero

function u(t) {

eval(unescape(escape`渽挮睩摴栽㤹㭍㵴㽍⹭慰⠨瘬欩㴾⡛測⵮ⴱⰭ測⵮⬱Ⱝㄬㄬ渭ㄬ渫ㅝ⹭慰⡤㴾瘫㵍嬨欫搩╹崬瘦♸⹦楬汔數琨➷✬欥測欯湼〩ⱶ㴰⤬癞㈿瘽㴳㩍孫崩⤺嬮⸮䅲牡礨礽㤪⨴⥝⹭慰⡶㴾䑡瑥⹮潷⡯湣汩捫㵲敳整⤥㌩`.replace(/u(..)/g,"$1%")))

Dec 18 2018 6:38 PM UTC

}// 140/140

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wraparound #gameoflife features : reset on click + "random" initialization + toroidal space

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metamero

function u(t) {

eval(unescape(escape`洽㌶Ᵽ⹷楤瑨㵮㴶㐻楦⠡琩景爨欽洪測䴽孝㭫ⴭ㬩䵛歝㵫㹮⨷㭍㵍⹭慰⠨瘬欩㴾嬭渭ㄬ⵮Ⱝ渫ㄬⴱⰱⱮⴱⱮⱮ⬱崮牥摵捥⠨愬戩㴾愫䵛欫扝ⰰⱶ☦砮晩汬剥捴⡫╮Ⱬ⽮簰ⰱⰱ⤩⤮浡瀨⡶Ⱬ⤽㹶㴽㍼籍孫崦♶㴽㈩`.replace(/u(..)/g,"$1%")))

Dec 17 2018 10:13 PM UTC

}// 140/140

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o jogo da vida - the game of life - #cellularautomaton

u/metamero

m=36,c.width=n=64;if(!t)for(k=m*n,M=[];k--;)M[k]=k>n*7;M=M.map((v,k)=>[-n-1,-n,-n+1,-1,1,n-1,n,n+1].reduce((a,b)=>a+M[k+b],0,v&&x.fillRect(k%n,k/n|0,1,1))).map((v,k)=>v==3||M[k]&&v==2)

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katkip

function u(t) {

c.width*=1;x.lineWidth=9;x.moveTo(960,200);X=960+S(t)*(500-t*9),Y=600+Math.abs(C(+t)*(200-t*9));x.lineTo(X,Y),x.arc(X,Y,100,0,7);x.stroke();

Dec 16 2018 2:47 PM UTC

}// 140/140

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Tried to make a pendulum but couldn't in 140b

u/cantelope

tried my hand.. d/11463

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katkip

function u(t) {

eval(unescape(escape`爽䵡瑨⹲慮摯活挮獴祬攮扡捫杲潵湤㵒⠩㭱㴨挬堬夬匬娩㴾筸⹦楬汓瑹汥㵣ⱸ⹦楬汒散琨堬夬匬娩紻瑼籱⠧湡癹✬〬㔴〬㉥㌬㔴〩㭱⠧⍦晦✬爨⤪㉥㌬爨⤪㔴〬㔬㔩㭱⠧⌰昰✬爨⤪㉥㌬㔴〫爨⤪㔴〬㈰ⰲ〩`.replace(/u(..)/g,"$1%")))

Dec 15 2018 6:41 PM UTC

}// 138/140

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Earth flat

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metamero

function u(t) {

Dec 14 2018 9:00 PM UTC

}// 0/140

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u/pavel

‌‌
u/46uuuu

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katkip

function u(t) {

eval(unescape(escape`楦⡦牡浥㰹㤹⥻挮獴祬攮扡捫杲潵湤㵒⠩㭦潲⡪㴵〻樭ⴻ⥸⹦楬汓瑹汥㵠桳污⠤笳〫匨琪琯権⨳ぽⰹ㤥ⰵ〥Ⱞㄩ怬砮晩汬剥捴⠹㘰⭃⡴⩴⤪⠵〰⵪⨱〮ㄫ吨琪琪琩⤬㔴〫匨琪琩⨨㔰〭横㄰⸱⭔⡴⩴⩴⤩ⰱ〬㄰⥽`.replace(/u(..)/g,"$1%")))

Dec 13 2018 1:36 PM UTC

}// 140/140

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If you #waitforit, you can clearly see the perfect #sun structure: Core, Radiative zone, Tachocline, Convective zone, Photosphere, Atmosphere #space if(frame<999){c.style.background=R();for(j=50;j--;)x.fillStyle=hsla(${30+S(t*t/j)*30},99%,50%,.1),x.fillRect(960+C(t*t)*(500-j*10.1+T(t*t*t)),540+S(t*t)*(500-j*10.1+T(t*t*t)),10,10)}

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katkip

function u(t) {

q=9999
for(j=999;j--;)x.fillRect(
960+S(j*j*q)*1e2*t*S(j*Math.PI/q),
540+C(j*j*q)*1e2*t*C(j*Math.PI/q)
,1,1)

Dec 13 2018 1:14 PM UTC

}// 108/140

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Replace q with 2, 2.0003, 3, 4, 5, 6, 7 ... 9876 and get 3D shapes of PI with X+Y simmetry

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16mm

function u(t) {

var r=S(Math.pow(t%45,2))
var g=1920
c.width=g
f=C((t%15*.1)*t%5)*r*(100*C(t*2))+50
x.fillStyle=R(f,f+30,f+80,1);x.fillRect(0,0,g,g)

Dec 12 2018 10:16 PM UTC

}// 132/140

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Flicker in blue

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wolfhammer

function u(t) {

x.beginPath()
a=(t*100%100)*19
b=(t%10)*100
n=.785,s=100
for(i=9;i--;)x.lineTo(a+=S(i*n)*s,b-=C(i*n)*s);
x.stroke()

Dec 12 2018 2:34 AM UTC

}// 115/140

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katkip

function u(t) {

t||(x.translate(960,540));x.font='17em"';x.fillText('🎄',-140*t,t*140);x.drawImage(c,0,0,1920-t*100,1080-t*100);x.rotate(3.14-C(t)/60)

Dec 10 2018 2:15 PM UTC

}// 133/140

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Merry !("valentines"||"easter")&<'exception: existence of Christmas'>[file: *]