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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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SuperFromND

function u(t) {

eval(unescape(escape`爽砮捲敡瑥剡摩慬䝲慤楥湴⠱〰〬〬㈵ⰱ〰〬琪㈰〰〬㈰〰⤻愽爮慤摃潬潲却潰⹢楮搨爩㭡⠱ⱒ⠩⤻愨⸵Ⱡ桳氨㈰〬㄰〥ⰵ〥⥠⤻愨〬✣晦昧⤻砮晩汬却祬攽爻砮晩汬剥捴⠰ⰰⰲ〰〬㈰〰⤻砮摲慷䥭慧攨挬〬ㄩ`.replace(/u(..)/g,"$1%")))

Sep 26 2018 8:50 PM UTC

}// 140/140

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Doorway Thingy

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Xen

remix of d/10048 by u/katkip

function u(t) {

c.width|=w=960;h=540;for(i=74;i--;x.restore())x.save(),x.translate(w,h),x.rotate(T(3*t+i/.32-T(t)/9)/i),x.strokeRect(-(s=i*9)/2,-s/2,s,s)

Sep 23 2018 6:20 PM UTC

}// 137/140

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quick play about

u/katkip

gltichy
u/f8f82804

nice technique

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Xen

remix of d/9950 by u/anotherkitten

function u(t) {

for(i=25;i--;x.fillRect((-60+i*t*i+S(Z+t)*1e3)%2e3,0,33,2e3))x.fillStyle=R(Z=i*9,t*Z%Z,t*i%Z),x.rotate(C(i+t)/4e2)

Sep 19 2018 9:38 PM UTC

}// 114/140

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sChiab8

function u(t) {

w=c.width=1920 
for(i=0;i<(t*20%400);i++){
x.fillRect(w/2+C(i+t)*i,c.height/2+C(i)*i,10,10);}

Sep 18 2018 3:19 PM UTC

}// 94/140

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galaxy o coso

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prplz

remix of d/9832 by u/prplz

function u(t) {

x.fillStyle='#0001'
x.fillRect(0,0,2e3,2e3)
for(i=70;i-=7;x.clearRect(C(q)*200+960+C(i)*250,S(q)*200+540+S(i)*250,32,32))q=t*4-i*2

Sep 14 2018 8:52 AM UTC

}// 130/140

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u/katkip

"Toxicly" nice.

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anotherkitten

remix of d/9778 by u/anotherkitten

function u(t) {

for(p=20;p;p-=4)for(i=1e3;i;i-=8){c=(t+p)*3;d=c*c/(i+1e3);e=(d*T(d)**2);x.fillStyle=R(p%8?0:e,p%8?e:0,0,.5);x.fillRect(c*200%2e3,i,10,8)}

Sep 12 2018 1:01 PM UTC

}// 137/140

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optimized and cleaned up

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ellisk1

function u(t) {

for(i=0;i<20;i++)for(j=0;j<10;j++)x.fillStyle=`hsla(${7*(i*C(t/2)+j*S(t/3)+5*t)},80%,50%,.05)`,x.fillRect(i*100,j*100,100,100)

Sep 9 2018 6:50 PM UTC

}// 126/140

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Slowly shifting gradient v3

u/donbright

pleasant

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katkip

remix of d/9683 by u/katkip

function u(t) {

c.width^=0;for(i=0;i++<9;)β=(K=t/frame*i,K-t--)*K-C(frame/K/i)-(t--+18.19*i/(V=4/K,V**3))*K/i,x.fillRect(250+i*100+C(β/7)*300,400,50,200)

Sep 9 2018 9:37 AM UTC

}// 137/140

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Magnetic formula applied on #default

u/donbright

ha ha awesome
u/katkip

Thx. Looks like you are the only one who understood it XD
u/magna

#physics

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cantelope

function u(t) {

eval(unescape(escape`儽⡰ⱱ⤽㹸⹦楬汒散琨眫堪瀯娪眭⡳㴱⬶〰⽚⽚⤯㈬栫太焯娪眭猯㈬猬猩㭦潲⡣⹷楤瑨簽眽椽⡨㴵〰⤪㈻椭ⴻ儨ㄬㄩⱑ⠭ㄬㄩⱑ⠭ㄬⴱ⤬儨ㄬⴱ⤩堽㐭⡩⽨⬱〰⤥㘬夽椯栭㈬瘽㜰⭓⡴⤪㘰簰ⱚ㵶⴨椫琪㘩┨瘭ㄩ`.replace(/u(..)/g,"$1%")))

Sep 8 2018 5:16 AM UTC

}// 140/140

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u/Xen

Yess!
u/iverjo

Interesting
u/donbright

dude ... so we are falling.. and then we are abt to hit ground... and then we are falling again...

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acorv

function u(t) {

with(x)for(i=0;i<8;i++){beginPath();fillStyle=R(i*30);for(j=0;j<100;j++)lineTo(j*40,i*90+40*i*C(j/10+(t*i*i)/10));lineTo(0,2000),fill();}

Sep 5 2018 7:36 PM UTC

}// 138/140

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Parallax