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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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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magna

remix of d/32412 by u/lewdev

function u(t) {

eval(unescape(escape`󮌮󩭯󫭴󟜧󜽥󫜢󙼻󭜽󭍼󜌻󦌽󚍵󙬳󚜪󝌸󜌻󦜽󚍵󟬾󜬩󚬱󝜴󞽦󫽲󚍩󟜴󝼰󞽩󛜭󞽩󟽸󛭦󪝬󫍒󩝣󭌨󦌫󪜬󦜫󝼷󛝍󨝴󪍛󩭝󚍩󛼵󞜭󝌩󚬶󝌥󝬴󛌱󛌱󚜺󮌮󩭩󫍬󥍥󮍴󚍦󛍘󛍙󚼸󝼩󚝦󟝒󩝦󫍥󨽴󛭯󭽮󢽥󮝳󚍍󟝍󨝴󪌩󛭦󪝬󭍥󬬨󬌽󟭍󦽰󧜮󫍥󫭧󭍨󟜽󜜩󒭛󭜥󜬸󧜻`.replace(/u../g,'')))

Sep 13 2024 3:36 AM UTC

}// 137/140

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All unary Math functions

u/magna

(There's something off with the x/y normalization)
u/lewdev

Reflect.ownKeys was what I was looking for because Object.keys didn't work!
u/magna

Kudos ChatGPT for showing me that
u/danny@hille.dk

dang, this old dog just learned a new trick today, - thanks!

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rodrigo.siqueira

remix of d/32387 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
for(x.reset(i=2e4);i--;)x.fillRect(X=960+S(k=i/180-S(i*i)*.5-t/4)*i/28,Y=540+C(k+S(t*5+k*k/3e3)/9)*i/45,5,2)

Sep 9 2024 9:56 PM UTC

}// 133/140

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Rotating moving surface spiral #spiral

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rodrigo.siqueira

remix of d/32376 by u/rodrigo.siqueira

function u(t) {

x.fillRect(x.globalAlpha=.05,0,2e3,2e3)
for(i=7e3;i--;)x.clearRect(960+C(k=i/200+t*5)*i/6,480+S(k)*i/6+i/2e3/t*440,9,7)

Sep 8 2024 5:37 PM UTC

}// 119/140

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Deeper hypnotic Spiral #spiral

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New_Core

function u(t) {

c.style.filter='blur(1vw)contrast(9)'
x.fillStyle=R(a=30*S(t*2)+30,b=30*C(t*8)+30,a/b)
x.fillRect(960+600*S(t*.8),520+400*C(t*.9),30,30)

Aug 30 2024 12:27 PM UTC

}// 136/140

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u/cantelope

cool style
u/cantelope

#waitforit

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rodrigo.siqueira

remix of d/32305 by u/rodrigo.siqueira

function u(t) {

for(i=137;i--;x.fill())x.fillStyle=R(r=C(i*5+t*8)*i*4,r/3),x.beginPath(),x.arc(960+C(k=i)*(V=i*S(t%1+i*i)*S(t)*i),540+S(k+V)*V+S(t),1/t,0,7)

Aug 29 2024 9:38 PM UTC

}// 140/140

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Abstract ink splash

u/thenize

Nice Work!

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SockTaters

remix of d/8527 by u/New_Core

function u(t) {

c.width=i=99
c.style.background='#ADE' 
x.font='2em"'
x.fillText("🐟",i-30*(t%5),55)
for(;i--;)x.drawImage(c,i,29,1,40,98-i,0,1,40)

Aug 28 2024 1:23 AM UTC

}// 130/140

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#fish circling

u/SockTaters

fun technique to get backwards emoji
u/thenize

can you make it infinite, great Job!

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SockTaters

remix of d/11332 by u/metamero

function u(t) {

t?onmousemove=e=>(onkeydown=k=>(x.fillStyle=R((k.key&4)<<6,(k.key&2)<<7,(k.key&1)<<8)),x.fillRect(e.x&~7,e.y&~7,8,8)):c.width=innerWidth

Aug 24 2024 8:36 PM UTC

}// 136/140

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Paint by Number Keys

u/SockTaters

Click in the window and use 0-7 to change colors.
u/SockTaters

0=black 1=blue 2=green 3=cyan 4=red 5=magenta 6=yellow 7=white
u/SockTaters

#paint #draw #interactive

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xem

function u(t) {

x.font="29px a";x.fillText("All the bytes you can use in #js13kgames",9,19);for(i=1024/8;i--;)for(j=13*8;j--;)x.fillRect(9+14*i,30+10*j,7,7)

Aug 8 2024 8:53 PM UTC

}// 140/140

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You have 13312 bytes to make a game! #js13kgames starts on august 13 at js13kgames.com

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lewdev

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪌽󜜵󜌊󮌮󩭩󫍬󤽴󮝬󩜽󘬣󜜵󩌢󒭦󫽲󚍩󟜵󞽩󛜭󞼩󮽸󛭢󩝧󪝮󤍡󭍨󚌩󒭸󛭲󫽵󫭤󤭥󨽴󚍛󝼵󛌶󛌹󛌴󞜬󞝝󦽩󧜫󜬴󛍛󜼵󛌳󝜬󝌵󛌴󝜬󜜰󧝛󪝝󛍛󜜸󛌱󞌬󝌰󛌴󜌬󞌰󧝛󪝝󛍛󜼸󛌳󞌬󜜰󛌱󜌬󝬰󧝛󪝝󛍛󜽝󚜊󮌮󩭩󫍬󚍸󛭳󭍲󫽫󩜨󚜩󯜻`.replace(/u../g,'')))

Aug 7 2024 8:42 PM UTC

}// 131/140

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Harris / Walz 2024 - www.kamalaharris.com

u/Agnes

🤤

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shandriy

function u(t) {

eval(unescape(escape`󪝦󚌡󭌩󮽘󟝙󟜴󜌻󫽮󫝯󭝳󩝭󫽶󩜽󩜽󟭻󦌽󩜮󮌯󝬻󦜽󩜮󮜯󝭽󯝦󫽲󚍣󛭷󪝤󭍨󟝩󟜹󝬻󪜭󛜻󮌮󩭩󫍬󤭥󨽴󚍩󛍓󚌨󪜭󦌭󜜶󚜯󞜩󚬨󬼽󜬰󛝙󛼲󚜫󝌰󛝳󚽓󚍩󛼲󚽴󚬵󚜪󜬫󤼨󚌹󝬭󪜩󛼱󜌫󭌩󚬲󛌱󛌹󞜬󮌮󩭩󫍬󤽴󮝬󩜽󤬨󦌪󜬬󪜬󦜪󜬩󚜩󞼻`.replace(/u../g,'')))

Aug 1 2024 9:08 PM UTC

}// 130/140

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Colorful waves #interactive

u/cantelope

fun