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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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c64skate

function u(t) {

c.width=320;for(a=i=99;i--;x.fillText(0,160+(d*f+k*g)/e,99+(j*f+a*g)/e))f=C((a=-a)+t),e=3+((d=(j=i&2?a:-a)*(g=C(t))-a*f)*g-(k=i&4?a:-a)*f)/a

Feb 22 2017 12:51 PM UTC

}// 140/140

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Show more comments…
u/ozayturay

Cool. :)
u/endo

Nice!
u/ssg

no platform is complete without a rotating cube :)
u/Delimawi

320x200 himm familiar ;)
u/donbright

glorious
u/donbright

glorious
u/lazri

donuts
u/iverjo

#cube

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KilledByAPixel

remix of d/26824 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󭽩󭍨󚍸󚝦󫽲󚍣󛭷󪝤󭍨󯌽󪜽󜜶󜌬󬽣󨝬󩜨󜬬󜜩󞽩󛜭󞽢󩝧󪝮󤍡󭍨󚍦󪝬󫌨󚜩󚝦󫽲󚍫󟝩󙜸󛍪󟜶󝌬󩭩󫍬󤽴󮝬󩜽󪜾󟬳󟜽󜜿󙼣󞝡󨬧󞭒󚌩󞽪󛜭󞽡󬭣󚍫󙜴󚭷󛌲󝼵󚽩󛼳󚼨󪼾󟬲󚜪󭼬󪜾󝼿󜬷󜬭󝬵󚬨󪬥󞌾󜼩󞬵󜬬󨜽󚍫󚽫󛼴󙬱󟼮󜜱󛝴󘌺󭌩󚽪󚬮󜌹󞌬󨜩󚝷󟜴󞌸`.replace(/u../g,'')))

Mar 20 2026 7:04 PM UTC

}// 139/140

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3D Gears ⚙️⚙️

u/cantelope

nope. sorry, the gears were already done
u/lewdev

🤣 u/cantelope

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KilledByAPixel

remix of d/33783 by u/KilledByAPixel

function u(t) {

eval(_=unescape(escape`󨼮󭽩󩍴󪍼󟝏󟝯󟜾󮌮󩭩󫍬󥍥󮍴󚍟󦽆󚼫󧜬󦌫󟝃󚍡󚜪󝜬󦜫󟝃󚍡󚼵󚜪󞌩󯌭󛝯󙬦󣼨󫼩󒭦󫽲󚍸󛭳󨽡󫍥󚌹󛍩󟜴󚜻󪜭󛜻󣼨󬬩󚝆󟜰󛍪󟝩󙬲󛍘󟜱󜼰󛍙󟜳󜬭󠼨󭌪󞌩󚬳󛍡󟜲󛍏󚌱󜜫󝜪󛜭󪬩󛍆󟝩󚬹󛍡󟝃󚍢󟝴󚬴󚽩󚬳󚜯󜬭󪬯󜬫󜬬󣼨󬬽󝼫󪬩󛍡󚼽󪬪󠼨󨬭󜬩󚽪`.replace(/u../g,'')))

Aug 5 2025 4:27 AM UTC

}// 140/140

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Running Code 🏃‍♀️

u/zachygreen

flippin nuts how smooth the animation is
u/cantelope

call the men in black
u/KilledByAPixel

#quine
u/ximavus

the code is running away!

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rodrigo.siqueira

remix of d/33821 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,r=q=.3,i=1e4,i);i--;x.clearRect(960+r*4,250+q*4,2,2))r+=C(a=S(i/250)*i+C(i/112-t/2)),q+=S(a)

May 19 2025 12:13 AM UTC

}// 109/140

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u/cantelope

whoa!

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rodrigo.siqueira

function u(t) {

for(i=3e4;i--;x.fillRect(640+X*300/Z,320+Y*300/Z,S(Z),t<7))X=(i*C(t*i))%9,Y=4*T(i/t)%7-S(X/3+S(X/2)*3)/3-3+T(i/t)/t/800,Z=2+X/30/(X*X+Y*Y-1)

Mar 11 2025 10:55 PM UTC

}// 140/140

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Waning moon #moon

u/joeytwiddle

Lovely. #stochastic #scene

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rodrigo.siqueira

remix of d/32824 by u/rodrigo.siqueira

function u(t) {

c.width|=m=n=s=0
for(j=3;j--;)for(i=1e4;i--;x.fillRect(n=1422-n/2+300*C(o+t+1),m,3,5))s=s/2-(i*S(i*j)|i)%8,m=(m+626+600*C(o=Math.PI/2*s))/2

Nov 24 2024 6:48 PM UTC

}// 139/140

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3d rotation

u/taupelink

Cool!! It's also one of those figures that could be rotating either clockwise or counterclockwise.
u/cantelope

amazing!
u/tomxor

Oh wow, I always wondered about 3D fractals.
u/jellyedwards

So cool!!
u/Joachim

Wow, that's amazing! Wonder if we could get some perspective in here 🤔

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rodrigo.siqueira

remix of d/32578 by u/rodrigo.siqueira

function u(t) {

for(x.fillRect(0,0,i=2e4,i);i--;x.clearRect(360+j*400+99*S(i+t)+35*C(i*i),220+k*330+35*C(i+k*3-t*(j+3))-C(i)*80+S(i*i)*30,2,3))j=i%4,k=i%3

Oct 12 2024 12:21 AM UTC

}// 138/140

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Multiple torus choreography #torus

u/cantelope

impressive!
u/lewdev

#donuts #fpskiller
u/jpthinker

So cool!
u/jpthinker

Reading through the code, this is so clever! I like how you combined the black background fillrect with the i variable's initialization, and how you used clearRect to get away without doing any fillStyles.
u/KilledByAPixel

https://www.reddit.com/r/tinycode/comments/1…

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𮀮𩡩𫁬𤡥𨱴𚀰𛀰𛁩🐱𞐸𜀬𪐩𞱩𛐭𞱸𛡣𫁥𨑲𤡥𨱴𚀹𝠰𚱘𛰨𦠽𠰨𬐩𚡤𚱓𚁴𛰲𚐫𜠩𚠨𪀽𝐴𜀩𛁨𚱃𚁰𚐯𦠪𜠷𜀬𬰽𦠾𜀿𜠵𛱚𞠰𛁳𚐩𦀽𤰨𬐽𚁍👍𨑴𪀩𛡡𭁡𫠲𚁘👓𚁰🐮𜀶𝀪𪐩𛰲𛁚🐨𪐯𞐹𯀰𚐯𜠭𠰨𭀯𜠩𚠹𙐮𝐭𝐩𚱴𛰴𚐪𚁤👍𛡨𮑰𫱴𚁘𛁚𚐩`.replace(/u../g,'')))

Oct 3 2024 1:43 AM UTC

}// 140/140

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fancy tunnel

u/magna

Amazing!
u/mistrfu

Wow, this is sick.
u/lewdev

Awesome!
u/cantelope

maff.
u/Joachim

Wow! Actually 3D! :0

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Agnes

remix of d/32394 by u/Agnes

function u(t) {

for(x.reset(i=F=0);i++<9;)for(j=1e3,D=t-i;j--;x.fillRect(j%10*5+M(Q=D>0)+300*(i/3+1+S(Q?i:t)+Q*D*C(i)),400+j/5+M(),5,2))M=()=>Q*D*9*T(j*F++)

Sep 11 2024 10:37 AM UTC

}// 140/140

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#default target practice but with conservation of momentum for particles (v2)

u/neimad

next level
u/geeknik

ok that's cool
u/magna

Incredible!
u/aleamb

amazing!
u/Agnes

Director's cut changes that I want to do in retrospect: 1) remove Q and replace its definition by D*=D>0 so multiplying by D is the same as multiplying by Q then D, and 2) replace j/5 by j/10 and j=1e3 by j=2e3 so the patterns on the blocks before blowing up dissapear. Also 3) M=_ instead of M=()

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KilledByAPixel

function u(t) {

for(c.width|=n=81;n--;x.ellipse(1e3,S(b=(i-!j-.5)*.8)*500+575,r=b*b<1&&400,r/4,0,a=(j-!!j*1.5+i/2+t%!x.stroke()+(n>>2))/.796,a))j=n%4,i=n>>5

Jun 13 2024 8:02 PM UTC

}// 140/140

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Icosahedron

u/lewdev

That's so awesome. I made a few of them out of paper.
u/cantelope

#nuts 😂
u/magna

my favourite shape