Dweets awesomed by u/cantelope

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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mxfh

remix of d/23558 by u/mxfh

function u(t) {

I=new ImageData(w=2048,w)
b=new Int32Array(I.data.buffer)
for(i=4e6;i--;X=i%w-960,b[i]=X*X+Y*Y+S(t)/Y*i<<14)Y=i/w-540
x.putImageData(I,0,0)

Aug 17 2021 3:33 PM UTC

}// 139/140

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Event Horizon Camera

u/mxfh

#time

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rodrigo.siqueira

remix of d/23567 by u/danny@hille.dk

function u(t) {

eval(unescape(escape`󢜽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󥼽󜼲󜌬󢌽󜜸󜜩󞽳󟝉󛭤󨝴󨜻󩭯󬬨󨼮󭽩󩍴󪌽󭼽󪜽󜼲󜌻󪜭󛜻󚝦󫽲󚍈󟜱󞌱󞽈󛜭󞽳󛭳󩝴󚍛󢼽󥌨󦜯󬭼󦌯󬬫󭌪󞜩󚭈󚼱󛽲󛽈󚭓󚍴󚜪󞌸󚭙󛍋󛼶󛌬󜬵󝝝󛍈󚭗󚬴󚽩󚬴󚜩󦜽󢌯󝼰󛍲󟜨󚍘󟝩󛼸󜌭󜬩󚭘󚽙󚭙󚜯󝜰󞽸󛭰󭝴󢝭󨝧󩝄󨝴󨜨󢜬󜌬󜌩`.replace(/u../g,'')))

Aug 16 2021 10:09 PM UTC

}// 139/140

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Sierpinski Pulsar Orbit #sierpinski

u/danny@hille.dk

Super cool - golfed a bit to center the pulsar I=new ImageData(c.width=i=W=320,h=181);for(s=I.data;i--;)for(H=h;H--;s.set([K=T(Y/r|X/r+t*9)*H+1/r/h*S(t*3)*W*H/16,K/6,,255],H*W*4+i*4))Y=1.3-H/70,r=((X=i/80-2)*X+Y*Y)/50;x.putImageData(I,0,0)
u/danny@hille.dk

better version: I=new ImageData(c.width=i=W=320,h=181);for(s=I.data;i--;)for(H=h;H--;s.set([K=T(Y/r|X/r+t*9)*H+1/r/h*(1+S(t*3))*W*3,K/6,,255],H*W*4+i*4))Y=1.3-H/70,r=((X=i/80-2)*X+Y*Y)/50;x.putImageData(I,0,0)
u/384.cz

nice

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danny@hille.dk

remix of d/23547 by u/danny@hille.dk

function u(t) {

c.width=w=178;for(m=2e4;m--;x.fillRect(i,j,S(X/(d=C(X*X+Y*Y))*9-C(t)*9)*S(Y/d*9-S(t)),S(i/9)+C(j/9+S(t)*9)))i=m%w,j=m/w|0,X=i/90-1,Y=j/90-.5

Aug 16 2021 5:54 PM UTC

}// 140/140

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ballz behind bars for u/cantelope remix

u/cantelope

wat

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danny@hille.dk

remix of d/23566 by u/rodrigo.siqueira

function u(t) {

eval(unescape(escape`󢜽󫭥󭼠󢝭󨝧󩝄󨝴󨜨󥼽󜼲󜌬󢌽󜜸󜜩󞽳󟝉󛭤󨝴󨜻󩭯󬬨󨼮󭽩󩍴󪌽󭼽󪜽󜼲󜌻󪜭󛜻󚝦󫽲󚍈󟜱󞌱󞽈󛜭󞽳󛭳󩝴󚍛󢼽󥌨󦜯󬭼󦌯󬬫󭌪󞜩󚬵󛍰󟝔󚍋󚜪󞜬󛝰󛌲󝜵󧜬󚍈󚬳󜬰󚽩󚜪󝌩󚝙󟝈󛼶󝜭󜜮󝌬󬬽󚌨󦌽󪜯󝼳󛜲󛬲󚜪󦌫󦜪󦜭󜜩󛼴󝌻󮌮󬍵󭍉󫝡󩽥󡍡󭍡󚍉󛌰󛌰󚜻`.replace(/u../g,'')))

Aug 16 2021 3:12 PM UTC

}// 140/140

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Sierpinksi inception remix

u/rep_movsd

Dormammus Lair

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lerc

remix of d/20936 by u/lerc

function u(t) {

eval(unescape(escape`𭁼𯀨𫀽𦱝𚐊𮀮𩡩𫁬𤡥𨱴𚁮🐰𛀰𛁱🐲𩐳𛁱𛁸𛡦𪑬𫁓𭁹𫁥🐢𘰰𜀰𜐢𚐊𩡯𬠨𦱛𫑝𛁛𬁝𧑯𩠊𫀽𦰮𛠮𫀮𬱬𪑣𩐨𛐹𞐩𛁛𦱑🐹𝠰𛀰𧐬𦱑𛀭𜐲𧑝𧐮𫑡𬀨𬀽🡰𛡭𨑰𚀨𦱰𛁭𧐩🐾𦱰𚱭𛀨𫐫𠰨𬐫👰𚐩𚠮𞐷𧐩𚐩𮀮𨱬𩑡𬡒𩑣𭀨𫐬𬀬𫠬𫠫🐰𛠱𚐊`.replace(/u../g,'')))

Aug 16 2021 11:57 AM UTC

}// 135/140

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Firework

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cantelope

function u(t) {

eval(unescape(escape`𩡯𬠨𫐽𜀻𚰫𫐼𝰸𞰩𤀽𭀿𦰮𛠮𤀬𦰹𝀰𛀵𜀰𛁓𚁰🐨𫐭𭀥𞐩𚠪𜠩𛁃𚁰𚐬𜁝𧐺𦱝𞱐𛡭𨑰𚁶🐾𮀮𩡩𫁬𤡥𨱴𚁶𦰰𧐫👶𦰲𧐯🐮𞐵𛁶𦰱𧐫👶𦰳𧐯🐮𞐵𛁭𛁭𛁸𛡦𪑬𫁓𭁹𫁥👠𪁳𫁡𚀤𮱰𚠪𜰯𜱥𝰪𚁶𦰴𧐫𚰩𯐬𞐰𙐬𝐰𙐬𛠰𜑠𚐩𛁐👐𛡦𪑬𭁥𬠨𭠽🡶𦰴𧐼𫐩`.replace(/u../g,'')))

Aug 14 2021 4:13 PM UTC

}// 140/140

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u/danny@hille.dk

i like it, althoug it makes my brain hurt
u/cantelope

that's just weakness leaving the body
u/cantelope

:D
u/cantelope

added music (remix of aurora) https://code.whitehotrobot.com/d/2w9g
u/cantelope

(temp mirror for above link) https://code.dweet.net/d/2w9g

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tomxor

remix of d/23544 by u/pavel

function u(t) {

for(a=Math.abs,c.width&=i=4352;X=1-(T+i/32)%2,Y=--i/2e3;x.fillRect(X*r+64*T,Y*r+96-64*a(S(t)),T=a(2-t%4)+1,(i^i/64)/8&1))r=64/(--Y*Y+X*X+1)

Aug 13 2021 12:57 AM UTC

}// 139/140

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Smoother #Amiga #Ball

Show more comments…
u/tomxor

..But less authentic. Remaps the pixel positions rather than texture, which gives "free" antialiasing, with spare space to correct the spin.
u/pavel

Oh yeah, nice. This is definitely a better way of doing it. The other mapping has an incorrect center that I have to waste characters to correct.
u/pavel

-2 char using S(t%3.14) to bounce and inlining the single Math.abs call
u/danny@hille.dk

What a clever trick, using modulus pi of t, to only get the positive part of the sinus curve
u/danny@hille.dk

3.2 works fine, while 3 and 3.1 looks wrong
u/danny@hille.dk

test code: c.width|=0,x.fillRect(o=860,o-S(t*4%3.2)*o,200,200)

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danny@hille.dk

remix of d/23547 by u/danny@hille.dk

function u(t) {

c.width=w=180;for(m=2e4;m--;x.fillRect(i,j,2,z))i=m%w,j=m/w,X=i/90-1,Y=j/90-.6,r=X*X+Y*Y,d=r*9*(2+S(t*9)),z=S(X/d*9-9*C(t))*C(Y/d*9-7*S(t))

Aug 12 2021 6:12 PM UTC

}// 139/140

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Silly remix

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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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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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