Random dweets | Dwitter

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

Please log in (or register) to post a dweet (copy-paste the code somewhere safe to save it meanwhile)


    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

show FPS hide FPS share fullscreen

DaSpider

remix of d/14286 by u/KilledByAPixel

function u(t) {

eval(unescape(escape`𩡯𬠨𨠽𦱩🐱𜰹𧐻𛐭𪐻𨡛𪐭𞑝👠𬡡𩁩𨑬𛑧𬡡𩁩𩑮𭀨𙁻𪑽𬁸𘁡𭀠𙁻𪐥𞐹𯐥𙁻𚁓𚁩𚐪𭀪𪐩𙐹𞑽𙐬𪁳𫀨𙁻𞐹𞐪𪑽𘀹𞐥𙁻𭁽𙐩𛀣𜀰𜀩𨀩𚁳👣𛡳𭁹𫁥𚐮𨡡𨱫𩱲𫱵𫡤𠡬𩑮𩁍𫱤𩐽𙱳𨱲𩑥𫠧𞱳𛡢𨑣𪱧𬡯𭑮𩀽𨠻`.replace(/u../g,'')))

Sep 7 2020 7:09 AM UTC

}// 125/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Chroma Drops

u/magna

Sweet!

show FPS hide FPS share fullscreen

rep_movsd

function u(t) {

c.width|=1
p=250
for(i=-6;i;i+=2)for(m=50;m++<p;){x.beginPath()
x.fillStyle=R(p,0,0,.02)
x.arc(960+m*S(t+i),560+m*C(t+i),m-50,0,6)
x.fill()}

Jul 22 2019 10:27 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Tri-orbit

show FPS hide FPS share 1 remix fullscreen

ximavus

remix of d/34226 by u/KilledByAPixel

function u(t) {

with(x)for(t||translate(960,540),j=6;j--;)for(i=95;i--;fillRect(-T/2,T*S(i+i*t/T),T=4e3,5))fillStyle=`hsl(${i*t} 99%${i}%`,rotate(Math.PI-1)

Oct 26 2025 2:14 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

actually I remixed it accidentaly

u/ximavus

most credit to u/KilledByAPixel
u/ximavus

well all of the credit

show FPS hide FPS share 2 remixes fullscreen

katkip

function u(t) {

f=frame;for(i=-108;i++<108;)x.fillStyle=`hsl(${(C(f/19)*f/2%i+C(i*f)*9)*3} 99%50%)`,x.fillRect(f*5,i*5+540,5,5)

Apr 23 2019 10:51 AM UTC

}// 111/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

#scanline

u/Xen

nice

show FPS hide FPS share fullscreen

marto1

remix of d/28110 by u/katur

function u(t) {

y=c.width=99
for(i=y;i--;x.fillStyle=R(S(i+t*.2)*y,5,5))
x.fillRect(i,66+S(i+t*.1)*66,C(i+t)*9,S(i*90/y+S(t))*9)

Jul 13 2023 8:53 PM UTC

}// 112/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

some lossy code golfing

show FPS hide FPS share 1 remix fullscreen

@noel

function u(t) {

eval(unescape(escape`󩭯󬬨󮌮󨽬󩝡󬭒󩝣󭌨󜌬󜌬󜜹󜬰󛌱󜌸󜌩󛍪󟜭󜜻󪬼󚍷󟜲󝜵󚜻󪜫󚼩󩭯󬬨󮜽󜬪󪬫󚼯󭼭󜜬󪜽󛜱󞽩󟍷󞽩󚼫󚝫󟜲󚭩󛽷󛜱󛍤󟝍󨝴󪌮󬽱󬭴󚍫󚭫󚽹󚭹󚜬󨜽󣝡󭍨󛭡󭍡󫬲󚍹󛍫󚜬󮬽󭼪󠼨󨜩󛽤󚽴󚭷󧭷󚭓󚍡󚜯󩌫󭌪󭼬󮌮󩭩󫍬󤭥󨽴󚌴󜬰󚼴󚭩󛌴󚭪󛍮󟜨󮬦󭼩󛽷󚬴󛍮󚜻`.replace(/u../g,'')))

Jun 3 2023 1:02 PM UTC

}// 140/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Remix of d/27866 Stereographic Projection

Show more comments…
u/@noel

I don't know why I couldn't post this in the 'change code box'. Maybe compressed code isn't allowed there?
u/@noel

I changed the code following a suggestion by u/KilledByAPixel who indicated that using fillStyle in a big loop slows the code a lot. And indeed, the framerate doubled. Though I had to use clearRect now. Maybe there is another solution for that? for(x.clearRect(0,0,1920,1080),j=-1;j<(w=255);i++)for(y=2*j++/w-1,i=-1;i<w;i++)k=2*i/w-1,d=Math.sqrt(k*k+y*y),a=Math.atan2(y,k),z=w*C(a)/d+t*w^w*S(a)/d+t*w,x.fillRect(420+4*i,4*j,n=(z&w)/w*4,n);
u/danny@hille.dk

Setting the width or height of the canvas will reset the canvas. c.width+=0 will do the trick, and besides being a great golfing trick, it is also faster than clearRect
u/danny@hille.dk

Math.sqrt(x) can be golfed to x**.5 '**' is an Exponentiation assignment operator: https://developer.mozilla.org/en-US/docs/Web…
u/danny@hille.dk

What you do here Math.sqrt(k*k+y*y) is how you calculate the length of the hypotunusis. javascript math class got you covered with: Math.hypot(x,y)
u/danny@hille.dk

Keep up the good work!
u/@noel

u/danny@hille.dk Thank you so much!
u/@noel

Dear @danny@hille.dk Since you answered so kindly and are obviously skilled in 'golfing' I dare to ask you one more question. I am struggeling to dweet to minify my next dweet. The original code would be: for(h=1080,b=540,c=420,d=950,g=x.createRadialGradient(d,b,0,d,b,c),g[a="addColorStop"](0,"#4BB"),g[a](1,"#005"),x.fillStyle=g,x.fillRect(c,0,h,h),i=6e3;i--;)k=d+S(i+t)*S(i*i)*c,y=b+c*C(i*i),x.fillText("◻️",k,y) But with 210 characters far to big, even compressed (149). So I tried to create the gradient drawing circles like; for(d=950,b=540,s=0,c=420,c.width+=0,i=40;i--;)x.beginPath(s+=2),x.arc(960,540,40*i,0,7),x.fillStyle=hsl(231,${s}%,${s/2}%),x.fill();for(i=6e3;i--;)k=d+S(i+t)*S(i*i)*c,y=b+c*C(i*i),x.fillText("◻️",k,y) But that only saved 7 characters and compressed still has 147. Is there still something possible?
u/danny@hille.dk

Hi @Noel, When making a Dweet, think of best practice and do the opposite: only use variables when you need them, and wait until you need to use them the first time to initialize them. 194b, but I'm sure it can be golfed even further: for(g=x.createRadialGradient(d=950,b=540,0,d,b,e=420),g[a="addColorStop"](0,"#4BB"),(x.fillStyle=g)[a](1,"#005"),x.fillRect(e,0,h=1080,h),i=3e3;i--;)x.fillText("◻️",d+S(i+t)*S(i*i)*e,b+e*C(i*i))
u/danny@hille.dk

Cool effect!
u/danny@hille.dk

eval(unescape(escape\`󩭯󬬨󩼽󮌮󨽲󩝡󭍥󤭡󩍩󨝬󡽲󨝤󪝥󫭴󚍤󟜹󝜰󛍢󟜵󝌰󛌰󛍤󛍢󛍥󟜴󜬰󚜬󩽛󨜽󘭡󩍤󠽯󫍯󬭓󭍯󬌢󧜨󜌬󘬣󝍦󩬢󚜬󚍸󛭦󪝬󫍓󭍹󫍥󟝧󚝛󨝝󚌱󛌢󘼰󜌵󘬩󛍸󛭦󪝬󫍒󩝣󭌨󩜬󜌬󪌽󜜰󞌰󛍨󚜬󪜽󜽥󜼻󪜭󛜻󚝸󛭣󫍥󨝲󤭥󨽴󚍤󚽓󚍩󚽴󚜪󤼨󪜪󪜩󚭥󛍢󚽥󚭃󚍩󚭩󚜬󝜬󝜩\`.replace(/u../g,'')))
u/danny@hille.dk

remove \

show FPS hide FPS share fullscreen

george7ath

function u(t) {

c.width=w=1920;h=1080;e=10
for(l=0;l<2e3;l++){for(i=0;i<30;i++){x.fillRect(w/2-e+l*e*S(i*t)+t*99*C(l*t),h/2-e+l*e*C(i*t)+t*99*S(l*t),e,e)}}

Feb 10 2025 2:52 PM UTC

}// 139/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Floater Spiral

show FPS hide FPS share fullscreen

KilledByAPixel

function u(t) {

x.textAlign='center'
x.font='900 '+[3,2,1.7][a=t*60|0]+'in"'
x.fillText(['🐢','ＬＥＮＴＡＮＤＯ','𝑃𝑟𝑜𝑔𝑟𝑒𝑠𝑠 𝑎𝑡 𝑦𝑜𝑢𝑟 𝑝𝑎𝑐𝑒'][a],960,[340,640,860][a])

Feb 15 2026 2:11 AM UTC

}// 137/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

https://lentando.3d2k.com

u/ximavus

🐢🐢🐢 :)

show FPS hide FPS share fullscreen

KilledByAPixel

function u(t) {

for(i=1e4;i--;x.fillRect(960+X*250,540-Y*250,.1,1))Y=S(A*X)-C(B*Y,X=S(G*Y)-C(D*X))}{r=_=>1+Math.random()*2,Y=X=A=r(B=r(G=r(D=r())))

Jun 10 2022 5:12 PM UTC

}// 131/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).

Random Peter de Jong Attractor

show FPS hide FPS share 1 remix fullscreen

23_Skidoo

remix of d/12051 by u/23_Skidoo

function u(t) {

t/=8
for(i=2e3;i--;x.fillStyle=R(160+C(t*t)*80,80,127+S(i+t)*127,.1))x.fillRect((1840)/2*(C(t*4+i*4)+1),(1200)/2*(C(t*7-i)+1),s=40,s)

Feb 1 2019 6:59 AM UTC

}// 133/140

Please log in (or register) to post as a new dweet (copy-paste code somewhere safe to save it meanwhile).