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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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prplz

remix of d/9911 by u/prplz

function u(t) {

t*=999
x.strokeRect(t%1920,t%1080,T(t)*64,T(t)*64)

Sep 18 2018 9:41 AM UTC

}// 50/140

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u/Xen

Love it!
u/DataMeta

Yes! #wireframe #sub64
u/jick

Wow, neat!

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prplz

function u(t) {

t*=777
x.strokeRect(t%1920,t%1080,32,32)

Sep 18 2018 9:36 AM UTC

}// 40/140

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prplz

remix of d/9880 by u/Quant1um

function u(t) {

for(c.width^=i=0;++i<70;)for(j=-4;++j<4;x.fillRect(n-o,n+o+j*C(m)*60>>1,k=10-j,k))b=i/11,a=300+j*S(m=b/2+t)*30,n=C(b)*a+960,o=S(b)*a

Sep 18 2018 9:12 AM UTC

}// 132/140

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u/donbright

moebius?
u/aleamb

#moebius

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gho.xlrtx@gmail.com

function u(t) {

t||(X=960,Y=540,D=10,F=J=Q=0,N=1)
if(J>2*F)F+=1,Q=F%2?-1:1,J=1
J>F?Y+=D*Q:X-=D*Q
for(I=2;I<N&&N%I!=0;I++);
I==N&&x.fillRect(X,Y,D,D)
J++
N++

Sep 18 2018 8:40 AM UTC

}// 140/140

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Ulam Spiral && Patterns in Prime Numbers

u/katkip

awesome
u/f8f82804

Impressive! #math #waitforit
u/donbright

!!!!!!!!!!!!!!!!!!!!!

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ellisk1

remix of d/9862 by u/ellisk1

function u(t) {

t?x.fillRect(q=99+t**9%810,99+(e=440*(q&1)),q,d=T(q)>0?880-e*((t&1)*2+1):x.fillStyle=R(d*C(q),d*C(t),d*C(e),.5)):x.fillRect(0,0,2e3,2e3)

Sep 18 2018 3:15 AM UTC

}// 136/140

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Technical Difficulties

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anotherkitten

function u(t) {

c.style.background=R()
x.fillStyle=`hsla(${280+frame*1.3},66%,50%,10%)`;
x.fillRect(940,520,40,40);
x.drawImage(c,C(t)-4,S(t)-2,1928,1084);

Sep 18 2018 3:09 AM UTC

}// 139/140

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deep spiral

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conorpo

function u(t) {

c.width=1920
for(i=0;i<100;i++)
x.arc(S(t+i/5)*100+500,C(t-i/10)*100+500,20,0+i,i);
x.fill();

Sep 18 2018 12:57 AM UTC

}// 93/140

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u/zanella

Code golfed 1 character and made the drawing bigger: `
u/zanella

c.width=960 for(i=0;i<100;i++) x.arc(S(t+i/5)*100+500,C(t-i/10)*100+250,20,0+i,i); x.fill();
u/donbright

fascinating

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Xen

remix of d/9867 by u/katkip

function u(t) {

for(i=99;i--;x.fillStyle=`hsla(${C(Z)*t*i},90%,50%,50%)`)
x.fillRect(C(Z=i^t*i)*2e3,0,C(t)*99+99,1);x.drawImage(c,S(t),9+C(t/9))

Sep 18 2018 12:05 AM UTC

}// 128/140

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Candy Drop

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Noah

remix of d/9898 by u/Noah

function u(t) {

eval(unescape(escape`愽䌨娽琪㈰⤬戽匨娩Ɽ㴸㤱Ɐ㴵㤴⭡⨹㤬樽搭截㤹ⱸ孇㴢晩汬剥捴≝⡪⭃⡴⤪ㄹ㠬漫匨琩⨱㤸ⰵⰵ⤬硛䝝⡪Ɐⰵⰵ⤬硛䝝⡤⭃⡴⤪㈹㜬㔹㐫匨琩⨲㤷ⰵⰵ⤻`.replace(/u(..)/g,"$1%")))

Sep 17 2018 11:57 PM UTC

}// 116/140

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with the same methods as the trinity doughnut, now that i learned some of them i got my 149 doughnut to 135

u/Noah

a=C(Z=t*20),b=S(Z),d=891,o=594+a*99,j=d-b*99,x[G="fillRect"](j+C(t)*198,o+S(t)*198,5,5),x[G](j,o,5,5),x[G](d+C(t)*297,594+S(t)*297,5,5)

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Noah

function u(t) {

eval(unescape(escape`愽䌨娽琪㈰⤪㤹Ⱬ㴢㄰ㄢ孺㵾繴┳崪㐰〬漽㌵〬栽稪㈴㐬硛䜽≦楬汒散琢崨搽漭匨娩⨹㤫栬漫愫欬㔬㔩ⱸ孇崨搫䌨琩⨲〰Ɐ⭡⭓⡴⤪㈰〫欬㔬㔩ⱸ孇崨漫䌨琩⨳〰⭨Ɐ⭓⡴⤪㌰〫欬㔬㔩`.replace(/u(..)/g,"$1%")))

Sep 17 2018 11:38 PM UTC

}// 129/140

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with the help of three wonderful lads- u/xen u/BalintCsala and u/BirdsTweetCodersDweet; shortened this mess of a code from 237 to 179 thanks a lot guys, also really cool that even though we hit the mark, u/xen kept pushing and got down to 162, a true legend in my eyes.

u/Noah

a=C(Z=t*20)*99 k="101"[z=~~t%3]*400 o=350 h=z*244 x[G="fillRect"](d=o-S(Z)*99+h,o+a+k,5,5) x[G](d+C(t)*200,o+a+S(t)*200+k,5,5) x[G](o+C(t)*300+h,o+S(t)*300+k,5,5)
u/BirdsTweetCodersDweet

#donut #circle #trinity #yum
u/Noah

sorry for not adding commas a=C(Z=t*20)*99,k="101"[z=~~t%3]*400,o=350,h=z*244,x[G="fillRect"](d=o-S(Z)*99+h,o+a+k,5,5),x[G](d+C(t)*200,o+a+S(t)*200+k,5,5),x[G](o+C(t)*300+h,o+S(t)*300+k,5,5)
u/BirdsTweetCodersDweet

#compreesed #compression