Dweets awesomed by u/joeytwiddle

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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Tekmap

remix of d/32376 by u/rodrigo.siqueira

function u(t) {

x.fillRect(x.globalAlpha=.05,0,2e3,2e3)
for(j=18;j--;)for(i=791;i--;R=40*j-9)x.clearRect(960+S(i+S(j/3+t)/3)*R,540+C(i)*R*(.4+T(i+t)/4),4,4)

Jun 17 2026 5:23 PM UTC

}// 140/140

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46uuuu

function u(t) {

c.width|=0
x.font="99px'"
for(i=0;i<9;i++)x.fillText(playing?"🙂":"😭",400+i*120+S(t)*300,800)

Jun 17 2026 3:37 PM UTC

}// 92/140

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#default but with #emojis (catch them by scrolling and they become 😭)

u/SockTaters

that's a funny concept -- they change their behavior when you're not looking at them like weeping angels
u/joeytwiddle

Cool! #trick

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magna

function u(t) {

c.outerHTML='<marquee style=aspect-ratio:16/9 direction=down behavior=alternate><marquee behavior=alternate><i><h1>DVD'

Jun 16 2026 11:17 PM UTC

}// 119/140

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#dvd https://bsky.app/profile/zachleat.com/post/3…

u/lewdev

That's awesome!
u/joeytwiddle

#css
u/magna

#html
u/rep_movsd

You have Joovke doovde?

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rodrigo.siqueira

remix of d/35611 by u/rodrigo.siqueira

function u(t) {

for(X=Y=i=4e4;i--;x.fillRect(Y*290+960,X*990-340,t<1,.1))u=X*3-3,r=(u*u+Y*Y)**.5,s=S(i*i/t)<.98||-1,X=s*(r+u)/6+S(X),Y=s*(r-u)**.6*(Y<0||-1)

Jun 16 2026 3:13 AM UTC

}// 140/140

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Deep spiral eyes

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joeytwiddle

function u(t) {

c.width|=W=500,J=255
for(i=8;i--;x.fillRect(W*X,W*Y,W,W))X=i%4,Y=i>>2,k=(3+i)/t,f=t%k<k/2?i:i^7,x.fillStyle=R(J*(f&1),J*((f&2)/2),J*((f&4)))

Jun 14 2026 10:59 PM UTC

}// 140/140

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8 primary colours flashing (sorry)

u/joeytwiddle

I just made this to explain my 8-bit childhood trauma to a friend
u/joeytwiddle

Long ago I noticed that the brightness of the colours increases in an alternating fashion: 0,4, 1,5, 2,6, 3,7. Paste ,c.style.filter='saturate(0%)',t=0 at the top to see this. It seemed to me to be intentional but odd. Now I realise it's simply because blue is the darkest primary, with red and green following. So we can get a smooth gradient by moving J*(f&1) from the first argument to the last.

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46uuuu

function u(t) {

COUNT=9
HEIGH=200
WIDTH=50
COLOR="#000"

c.width^=0
x.fillStyle=COLOR
for(i=0;i<COUNT;i++)x.fillRect(400+i*2*WIDTH+S(t)*300,400,WIDTH,HEIGH)

Jun 14 2026 3:26 PM UTC

}// 140/140

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#customizable #default (adjust any of the 4 settings)

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taupelink

remix of d/35565 by u/taupelink

function u(t) {

for(i=z=1080;i--;x.fillRect(t*320,i,z+=3+S(i**.4-t/p),z/=.8+S(i/r*p-t)*p/z/2))x.fillStyle=R(r=265-(z&=11)*++z*2,r*.96,r*.87,.6),p=(-.9)**z

Jun 12 2026 10:44 PM UTC

}// 138/140

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d/35588

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taupelink

remix of d/35565 by u/taupelink

function u(t) {

for(i=z=1080;i--;x.fillRect(t*480,i,z*=1+C(i/r-t/p)/p/z,9))x.fillStyle=R(r=264-(z&=31)*8,r,r,++z/r),p=(z/(700+r)-1)**z,z+=5*p+2*S(i**.5*p-t)

Jun 11 2026 10:33 PM UTC

}// 140/140

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d/35583 Abstract nighttime cityscape

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rodrigo.siqueira

remix of d/35560 by u/rodrigo.siqueira

function u(t) {

for(X=Y=i=3e4;i--;x.fillRect(Y*110+960,X*250+380,t<1,.1))u=X%1*2,r=(u*u+Y*Y)**.5,s=S(i*i/t)<.8||-1,X=s*(r+u)/4+S(X),Y=s*(r-u)**.7*(Y<0||-1)

Jun 11 2026 1:00 AM UTC

}// 139/140

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Bioform: Fractal Mosquito

u/UEZ

#bug
u/vain

absolutely incredible und beeindruckendI have no idea how you managed to turn such a detailed and impressive Mosquito into code. It's genuinely mind-blowing. Wow! ❤️👍

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magna

remix of d/35567 by u/taupelink

function u(t) {

eval(unescape(escape`󪌽󜜰󞌰󞽦󫽲󚍩󟝺󟝨󞽩󛜭󞽸󛭦󪝬󫍒󩝣󭌨󜜹󜜹󛍩󛌶󛍺󚬽󜜫󠼨󪜯󜜰󝜯󬌩󚭃󚍴󛼶󛽰󚜩󚝸󛭦󪝬󫍓󭍹󫍥󟝠󪍳󫌨󙍻󝬪󚬨󮬦󟜷󚝽󛌲󝜥󛌤󮼳󜌰󛼨󮬫󟜳󛜨󬌽󚌭󛬷󚜪󚭺󚜪󠼨󭌯󚍩󛽨󚜫󪜯󜬱󜌪󬌩󚝽󙜬󛬳󨌻󮌮󩍲󨝷󢝭󨝧󩜨󨼬󛜱󛌰󚜻`.replace(/u../g,'')))

Jun 10 2026 11:03 PM UTC

}// 129/140

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u/vain

Absolutely incredible and truly impressive generation. It looks like you're looking out of an airplane window. ❤️👍

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