Dweets awesomed by u/DaSpider

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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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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rodrigo.siqueira

remix of d/23469 by u/rodrigo.siqueira

function u(t) {

for(c.width=w=417,d=new ImageData(w,w),m=w*w,i=-1;m--;d.data[i+=4]=i*Y*w&w+t*m*w&i+9e8)X=m-t*5e4,Y=m%w&w+X/w
x.putImageData(d,0,0)

Aug 10 2021 12:02 PM UTC

}// 130/140

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#sierpinski static noise

u/magna

Very nice noise

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danny@hille.dk

remix of d/23514 by u/danny@hille.dk

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪌽󭼽󞜹󞽦󫽲󚍭󟝷󚭷󞽭󛜭󞽸󛭦󪝬󫍓󭍹󫍥󟝒󚍲󟝭󛼸󚽓󚍡󛼹󚜪󤼨󨬯󝬫󭌪󞜫󤼨󨜯󞌭󭌪󜼩󚜪󭼬󬬪󛬶󚜩󩜽󚍘󟜱󛜴󚭭󛽷󛽷󚜪󦌫󚍙󟜭󜬫󝌪󚍭󙝷󚜯󭼩󚭙󛍸󛭦󪝬󫍒󩝣󭌨󨜽󫜥󭼬󨬽󫜯󭼬󜜬󜜭󚍙󚬨󫼽󚌳󛜨󝌭󝜪󩜩󚬪󛬵󚜯󚼫󩜩󚭷󚽴󚭷󙭷󧭘󚭯󚭷󙭷󚜯󭼩`.replace(/u../g,'')))

Aug 9 2021 9:05 PM UTC

}// 140/140

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disco inferno remix - #disco #ball #spere #fire

Show more comments…
u/danny@hille.dk

uncompressed: c.width=w=99;for(m=w*w;m--;x.fillStyle=R(r=m/8+S(a/9)*S(b/6+t*9+S(a/8-t*3))*w,r*.6))e=(X=1-4*m/w/w)*X+(Y=-2+4*(m%w)/w)*Y,x.fillRect(a=m%w,b=m/w,1,1-(Y*(o=(3-(4-5*e)**.5)/++e)*w+t*w&w^X*o*w&w)/w)
u/danny@hille.dk

2 more variants:
u/danny@hille.dk

c.width=w=99;for(m=w*w;m--;x.fillStyle=R(r=m/8+S(a/9)*S(b/6+t*9+S(a/8-t*3))*w,r*.6))e=(X=1-4*m/w/w)*X+(Y=-2+4*(m%w)/w)*Y,x.fillRect(a=m%w,b=m/w,1,1+(Y*(o=(3-(4-5*e)**.5)/++e)*w+t*w&w^X*o*w&w)/w)
u/danny@hille.dk

and
u/danny@hille.dk

c.width=w=99;for(m=w*w;m--;x.fillStyle=R(r=m/8+S(a/9)*S(b/6+t*9+S(a/8-t*3))*w,r*.6))e=(X=1-4*m/w/w)*X+(Y=-2+4*(m%w)/w)*Y,x.fillRect(a=m%w,b=m/w,1,(Y*(o=(3-(4-5*e)**.5)/++e)*w+t*w&w^X*o*w&w)/w)
u/danny@hille.dk

I think this is my favorite:
u/danny@hille.dk

c.width=w=127;for(m=w*w;m--;x.fillStyle=R(r=m/8+S(a/9)*S(b/6+t*9+S(a/8-t*3))*w,r*.6))e=(X=1-4*m/w/w)*X+(Y=-2+4*(m%w)/w)*Y,x.fillRect(a=m%w,b=m/w,1,(Y*(o=(3-(4-5*e)**.5)/++e)*w+t*w&w^X*o*w&w)/w*2)
u/neimad

wtffffffff
u/magna

constraints stoke fire
u/ullo

good

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KilledByAPixel

remix of d/23497 by u/danny@hille.dk

function u(t) {

for(c.width=w=255,i=4e4;i--;)x.fillRect(a=i%w,b=i/w,((o=(3-(4-5*(e=((X=2*b-w)*X+(Y=2*a-w)*Y)/w/w)+S(t))**.5)/++e)*Y-w*S(t)&w^X*o+t*w&w)/w,1)

Aug 8 2021 1:41 PM UTC

}// 140/140

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Xor Sphere #uncompressed

Show more comments…
u/danny@hille.dk

Nice work!, I actually did try a solution with fillRect - but it totally kills my laptop, runs kinda ok on my phone though (I get around 11fps with this dweet on my laptop, 28 on my phone)
u/danny@hille.dk

btw nice trick with ++e, i haven't seen that before, I'll put it on my toolbelt right away :-)
u/KilledByAPixel

Yep, had to make some sacrifices for speed. You can do w=127 and get a pretty good fps!
u/danny@hille.dk

this is my aptempt: reduced the resolution to get at bit more performance: c.width=w=127;for(m=w*w;m--;x.fillRect(m%w,m/w,1,(Y*(o=(3-(4-5*e+S(t))**.5)/(e+1))*w+t*w&w^X*o*w&w)/w))e=(X=1-4*m/w/w)*X+(Y=-2+4*(m%w)/w)*Y
u/danny@hille.dk

with the ++e trick its only 137 bytes :-)
u/danny@hille.dk

Sorry i hadnt seen you wrote back, yep i did 127, (any pow(2)-1 will work for the xor pattern)
u/aleamb

#sphere
u/donbright

dude

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KilledByAPixel

remix of d/23452 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`󡬽󚍁󛍩󟜰󛍺󛍰󟝃󚍴󚽮󚭮󚼫󚜯󝌫󛬵󚜽󟭩󚼫󟬹󟽸󛭦󪝬󫍒󩝣󭌨󛬮󛭁󛍸󛭳󭍲󫽫󩝒󩝣󭌨󛬮󛭁󚜬󮌮󩭩󫍬󤽴󮝬󩜽󨍨󬽬󚌤󮽮󯜠󞌰󙜤󮽁󦼲󧜪󠝛󜽝󛼹󞝽󙝠󚜺󡬨󠜽󦼮󛬮󠝝󛍩󛍺󟝁󦼲󚽩󙜲󧜪󟝰󛍆󚍁󛍩󚜬󠝛󪜥󟜲󧜫󟝺󛍁󦼲󚽩󧜽󮬯󬌭󮬩󒭆󚍛󝌶󜌬󝌰󛍮󟜱󩜳󛍮󧜩`.replace(/u../g,'')))

Aug 1 2021 3:28 PM UTC

}// 140/140

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Recursion Soup

u/taupelink

excellent
u/TGY

amazing
u/Xen

highly sexy, i can however sense the next version ;-)
u/vain

Wow! Really cool looking effect and great color sheme !!! love it

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KilledByAPixel

function u(t) {

T([0,0,c.width|=T=(A,i=0,z,p=S(t++)/3+.5)=>i++>12?x.strokeRect(...A):T(A=[...A],i,z=A[2+i%2]*=p,T(A,i),A[i%=2]+=z,A[2+i]=z/p-z),1080])

Jul 31 2021 4:17 AM UTC

}// 134/140

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Subdivision Waves

u/taupelink

whoaoooa
u/KilledByAPixel

inspired by https://twitter.com/RavenKwok/status/1318938…
u/KilledByAPixel

also d/20360
u/lonce

Just too cool!

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rodrigo.siqueira

remix of d/23341 by u/rodrigo.siqueira

function u(t) {

t=T(t)
for(X=c.width=99;X--;)for(Y=99;Y--;x.fillRect(Y,27+X*(X%2-.5),2,1))o=255-X*Math.hypot(X*S(Y+T(Y+t))*2,Y-t-45),x.fillStyle=R(o,X*S(o))

Jul 16 2021 7:55 PM UTC

}// 140/140

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Signal-to-noise ratio #noise

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rodrigo.siqueira

remix of d/23327 by u/danny@hille.dk

function u(t) {

for(X=c.width=99;X--;)for(Y=99;Y--;x.fillRect(Y,55-X,1,1))
o=255-X*Math.hypot(X-50+t**2,Y-8*t),s=C(t*5-Y/12)/9-.4,x.fillStyle=R(-o/s,o)

Jul 14 2021 7:29 PM UTC

}// 135/140

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When Mercury falls into the sun #sun

u/danny@hille.dk

I love it!
u/danny@hille.dk

you can kinda make it a perfect loop by prepending t%=9; or for a more dramatic effect: t=T(t/3);
u/magna

Blobular!
u/rep_movsd

Eerie

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KilledByAPixel

function u(t) {

eval(unescape(escape`󩭯󬬨󭌿󦌭󟝷󚼹󞭘󟝡󟜲󩜳󛍷󟝓󚍴󚬽󪼽󨜩󚬴󜼫󞜹󞼭󛝫󞽸󛭦󪝬󫍒󩝣󭌨󦌫󫌪󜬭󚍱󟽫󙜳󟼰󞭷󞭷󛜸󚜬󞜰󜌫󫌬󬜿󞌺󭼬󭌪󭌥󞜹󛜸󜌰󛝺󚜩󬜽󪼥󜼡󟜱󛍬󟜨󞜹󚽴󚬪󝬥󜬹󚜪󚌱󛝫󛽡󚜬󮬽󚍱󯍫󟌲󚜪󞜬󮌮󩭩󫍬󤽴󮝬󩜽󨍨󬽬󚌤󮽴󚭴󯜠󙍻󮬪󝭽󙜤󮽱󟼲󝜺󞌵󛝬󛼳󯜥󨌻`.replace(/u../g,'')))

Jun 29 2021 4:25 PM UTC

}// 140/140

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Book Shelf 📚

u/krispuusepp

I feel like in a year or two some people are going to start creating working versions of Minecraft and Blender in 140 characters or less
u/Agnes

Broken on iOS Safari, which is usually because you're using HSL colour codes that end unexpectedly (can't tell from the compressed code)
u/KilledByAPixel

uncompressed with safari fix for(t?X-=w+9:X=a=2e3,w=S(t*=k=a)*43+99;--k;x.fillRect(X+l*2-(q?k%3?0:w:w-8),900+l,q?8:w,t*t%99-800-z))q=k%3!=1,l=(99+t**6%29)*(1-k/a),z=(q|k<2)*9,x.fillStyle="hsl("+t*t+","+z*6+"%,"+(q?25:85-l/3)+"%)"

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