Dweets awesomed by u/danny@hille.dk

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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danny@hille.dk

function u(t) {

c.width=w=180;for(m=2e4;m--;x.fillRect(i,j,1,z))i=m%w,j=m/w,X=i/44-2,Y=j/44-1.1,r=X*X+Y*Y,d=r>1?1:C(r)*2,z=S(X/d*9-t*C(t)*5)*C(Y/d*9-t*S(t))

Aug 12 2021 5:55 PM UTC

}// 140/140

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moar ballz

u/cantelope

too much ballz
u/danny@hille.dk

Try not to think of it as too much ballz, try to think of it as too little fire, then you will realize there are no ballz...

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rodrigo.siqueira

remix of d/23528 by u/rodrigo.siqueira

function u(t) {

for(c.width=w=482,d=new ImageData(w,w),m=w*w,i=3;m--;d.data[i+=4]=Y*w&7e8)X=m-t*9e4,Y=m%w&X/w-S(m%w/99+t*3)*w/8
x.putImageData(d,0,0)

Aug 12 2021 1:52 PM UTC

}// 133/140

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#Sierpinski waves

u/danny@hille.dk

Love it: - idk why, but it reminds me of the old windows logo https://logodix.com/logo/661924.png

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pavel

remix of d/23537 by u/KilledByAPixel

function u(t) {

for(c.width&=i=4352;Y=i--/2e3;x.fillRect(94+C(t/3)*94+i%64,80-80*Math.abs(S(t))+i/64,2*X/C(r=X*X+--Y*Y)-6*t&1^2*Y/C(r)-6&1,r<1))X=i%64/32-1

Aug 11 2021 8:39 PM UTC

}// 139/140

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Boing

u/DaSpider

That brings back memories.
u/DaSpider

#Amiga bouncing ball
u/tomxor

Nice!
u/tomxor

-1 char X=i/32%2-1

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rep_movsd

function u(t) {

eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼👄🐹𞐬𥰽𝠸𛁫🐸𞱫𛐭𞰩𩡯𬠨𬀽𚀨𩀽𡁡𭁥𚀩𦱫𚰨𪐽𢀽𜐶𚑝𚐼𙰺𙰩𚡗𞱩𛐭𞰩𘣫񀁺񎃑𾒻񂃻񎐢𛡣𪁡𬡃𫱤𩑁𭀨𬀿𩀺𭀥𜐾𛠵🱗𞠱𚐦𜐼🁩𙠦𮀮𩡩𫁬𤡥𨱴𚁗𚡫𚠲𚰨𪐾𝐩𚡄𚰨𠠽𪐯𜰦𜐩𚡈𚱰𛰲𛁄𚰨𪐥𜰩𚡄𚰡𠠪𢀭𬀯𜠬𢀫𠠪𬀬𢀫𘑂𚡰𚐊`.replace(/u../g,'')))

Aug 11 2021 1:31 PM UTC

}// 140/140

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Digital seven segment clock #time #clock #lcd

u/KilledByAPixel

nice!
u/KilledByAPixel

can i use this in the next release of os13k?
u/rep_movsd

I'd be honored!
u/rep_movsd

Use my analog clock too :)
u/KilledByAPixel

nice thanks! i have an analog in the prev version but switching to digital probably for next js13k

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KilledByAPixel

remix of d/23535 by u/KilledByAPixel

function u(t) {

for(i=4*(c.width=450);i--;x[(t+j+i/350)&1|j>7?'moveTo':'lineTo'](225-C(t/2)*99+(64-i/14)*S(a=j*.4),99+86*C(t)**2+64*C(a)))j=i%9
x.stroke()

Aug 11 2021 2:41 AM UTC

}// 138/140

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Amiga Ball #uncompressed #amiga

u/KilledByAPixel

fixed bounce for(i=4*(c.width=450);i--;x[(t+j+i/350)&1|j>7?'moveTo':'lineTo'](225-C(t/2)*99+(64-i/14)*S(a=j*.4),179-86*S(t%3.2)+64*C(a)))j=i%9;x.stroke()
u/vain

AMIGA !!!!! :D

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mxfh

remix of d/855 by u/mxfh

function u(t) {

r=113;c.width|=w=710;for(λ=φ=a=w/r;λ+=a,φ>-a;φ-=.1)x.arc(C(φ)*S(d=λ-t)*r+w,(S(φ+a/4)*C(φ)*C(d))*r+w,φ**4,0,a)
x.fill("evenodd")

Aug 11 2021 12:33 AM UTC

}// 127/140

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KilledByAPixel

function u(t) {

eval(unescape(escape`󭽩󭍨󚍸󚝦󫽲󚍫󟜶󚬨󨼮󭽩󩍴󪌽󜼰󜌩󛍦󟝟󟜾󫍩󫭥󥍯󚌹󞜫󚌴󜌭󪼯󜬲󚜪󠼨󨜽󜜮󝬭󪬪󛬴󚜬󞌰󚼳󜌪󠼨󭌩󚼴󜌪󤼨󨜩󚜻󪼭󛜻󬽴󬭯󪽥󚌩󚝦󪝬󫍒󩝣󭌨󜜷󞜹󛝫󛌰󛌮󝌬󪼩󛍪󟝫󙜹󛍦󚍢󩝧󪝮󤍡󭍨󚍳󭍲󫽫󩝓󭍹󫍥󟝒󚍶󟜵󜌫󪼯󝌬󭬪󟜨󭌫󪬫󪼯󜼵󜌩󙬱󛍶󚜩󚜬󩬨󛜭󪬩`.replace(/u../g,'')))

Aug 11 2021 12:00 AM UTC

}// 140/140

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Amiga Ball

u/KilledByAPixel

#amiga
u/aleamb

wow!!
u/KilledByAPixel

improved... with(x)for(c.width=300,i=2e3,f=_=>lineTo(99+(40-i/22)*S(a=j*.4),80+30*C(t)+40*C(a));i--;i<1800?stroke():fillRect(0,i-1800,i,.4))j=i%9,f(beginPath(strokeStyle=R(v=i/4,v*=(t+j+i/350)&1,v))),f(--j)
u/KilledByAPixel

smaller... with(x)for(c.width=300,i=2e3,f=_=>lineTo(149+(40-i/22)*S(a=j*.4),80+30*C(t)+40*C(a));i--;i<1800?stroke():fillRect(0,i-1800,i,.4))j=i%9,f(beginPath(strokeStyle=R(v=i,v*=(t+j+i/350)&1,v))),f(--j)
u/vain

AMIGA !!!

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bandaloo

remix of d/19281 by u/bandaloo

function u(t) {

for(i=2e3;i--;x.fillStyle=`hsl(${i/9+t*9},80%,${9+60*~~((1+C(t)+9*C(i/(99+80*C(t)))*S(t*9))%4)}%`)x.fillRect(i,0,1,9);x.drawImage(c,0,9)

Aug 10 2021 9:52 PM UTC

}// 136/140

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ArthurThuczsec

remix of d/23531 by u/cantelope

function u(t) {

eval(unescape(escape`𤐽𫐽🡸𛡬𪑮𩑔𫰨𞐶𜀫𤰨𬀽𪐯𝰫𭀪𝀩𚡓𚁮👱𛰨𭁼𜀩𚐯𚁚👃𚁰𚐪𤰨𫠩𛑓𚁴𚐭𜠩𚡨𛁨𚱃𚁮𚐯𦠪𪀩𞱦𫱲𚁩👣𛡷𪑤𭁨𯀽𪀽𝐴𜀻𪐭𛐻𮀮𨡥𩱩𫡐𨑴𪀨𮀮𩡩𫁬𚀩𚐩𪑦𚀨𪐫𚁱👩𛰶𜁼𜀩𚐥𜠩𤐨𤐨𤐨𤐨𚐬𚰫𪐩𛀫𚱱𚐬𛐭𪐩𛁸𛡦𪑬𫁓𭁹𫁥👒𚁨𛁩𛰵𚐻`.replace(/u../g,'')))

Aug 10 2021 8:26 PM UTC

}// 139/140

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u/cantelope

wow
u/ArthurThuczsec

Just a slight tweak Mr Cantelope

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taupelink

remix of d/23515 by u/taupelink

function u(t) {

for(i=q=1e3;--i;x.fillRect(i*X**.5,810+q/Y,-q*q/2**t,i*i/3**t))f=i*t,X=f*f%20,Y=X*f%4,x.fillStyle=R(q*=C(q%i),q+=S(q)*i/t,q%=C(X)*i,Y/q**.6)

Aug 10 2021 1:50 PM UTC

}// 140/140

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d/23529

u/taupelink

On iOS, the previous one had a yellow rectangle on the left that didn't show up when I checked on Windows. This one has a bigger yellow rectangle that may or may not show up on Windows....

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