Hot dweets by u/lewdev

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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lewdev

remix of d/4368 by u/DasSchafImWolfspelz

function u(t) {

for(b=t*3,i=4,x.font="4in'";i--;)x.fillText([..."🃏🎴"][i%2],t*300+i*400,350+700-1/b*Math.abs(S(b))*700+i)

Oct 1 2025 11:33 PM UTC

}// 104/140

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Solitaire win screen attempt

u/ximavus

nice!
u/lewdev

Thanks. I wanted to have cards constantly jumping out but I lost steam.

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lewdev

remix of d/34375 by u/lewdev

function u(t) {

onmousedown=onmouseup=e=>x.beginPath(A=e.buttons)
onmousemove=e=>A&&x.lineTo(e.x*(s=c.width/innerWidth),e.y*s),x.stroke()

Oct 3 2025 8:47 PM UTC

}// 121/140

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🎨🖱️ Tiny Canvas Paint Dweet (click drag to draw)

u/ximavus

You did it! This was a big goal on my original paint project to click and paint instead of automatically painting
u/ximavus

You can put also onkeydown=e=>c.width|=0 at the end to add clearing by pressing keys

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lewdev

remix of d/34366 by u/lewdev

function u(t) {

onmousemove=e=>x.lineTo(e.x*(s=c.width/innerWidth),e.y*s),x.stroke()

Oct 1 2025 11:27 PM UTC

}// 68/140

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Paint that works in fullscreen too (-15b)

u/ximavus

good idea with the variable!
u/lewdev

I should credit u/KilledByAPixel in his dweet: d/34352 which does the same thing.

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lewdev

remix of d/34346 by u/danny@hille.dk

function u(t) {

onmousemove=e=>x.lineTo(e.x*c.width/innerWidth,e.y*c.height/innerHeight),x.stroke()

Sep 25 2025 9:24 PM UTC

}// 83/140

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Paint that works in fullscreen too

u/cantelope

👍
u/ximavus

here's a 32 character golf: change the c.width/innerWidth and c.height/innerHeight with 3.4
u/ximavus

I checked how much it is and its actually 3.386243386243386 but 3.4 is pretty close
u/lewdev

I didn't want a hard-coded version because this solution is much better than this d/34332 which uses getBoundingClientRect to find the accurate position of your mouse no matter the size of your canvas. But I'll keep that in mind for future dweets.
u/ximavus

ok

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lewdev

remix of d/34344 by u/Axioplase

function u(t) {

for(x.reset(i=27),x.font="1in'";i--;)x.fillText("█░▒▓"[(0|9*t+i*(0|t))%4],500+i%9*99+S(t)*500,500+~~(i/9)*115)

Sep 25 2025 9:05 PM UTC

}// 110/140

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#default #blocks (golfed -13b)

u/joeytwiddle

Good golfing

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lewdev

remix of d/34345 by u/lewdev

function u(t) {

eval(unescape(escape`睩瑨⡸⥴㽯湭潵獥浯癥㵥㴾筢敧楮偡瑨⡬楮敗楤瑨㴹⤬浯癥呯⡘ⱙ⤬汩湥呯⡘㵥⹸ⱙ㵥⹹⤬獴牯步⠩ⱦ楬氨敬汩灳攨堬夬㐬㐬〬〬㜩⥽㩘㵙㵣⹷楤瑨㵩湮敲坩摴栠`.replace(/u([^D].)/g,'$1%')))

Sep 21 2025 2:43 AM UTC

}// 122/140

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🖌️ Painting with lines (smooth) -11b, 1b short of 140b

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lewdev

remix of d/34338 by u/lewdev

function u(t) {

eval(unescape(escape`睩瑨⡸⥴㽯湭潵獥浯癥㵥㴾筢敧楮偡瑨⠩㭬楮敗楤瑨㴹㭘☦浯癥呯⡘ⱙ⤻汩湥呯⡘㵥⹸ⱙ㵥⹹⤻獴牯步⠩㭥汬楰獥⡘ⱙⰴⰴⰮ㜸ⰰⰶ⸲⤻晩汬⠩紺⡣⹷楤瑨㵩湮敲坩摴栬堽夽〩`.replace(/u([^D].)/g,'$1%')))

Sep 20 2025 9:26 AM UTC

}// 128/140

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🖌️ Painting with lines (smooth)

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lewdev

remix of d/34330 by u/ximavus

function u(t) {

t?onmousemove=e=>{x.beginPath();x.lineWidth=9;X&&x.moveTo(X,Y);x.lineTo(X=e.x,Y=e.y);x.stroke()}:(c.width=innerWidth,X=Y=0)

Sep 18 2025 7:14 PM UTC

}// 123/140

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🖌️ Painting with lines

u/ximavus

dude I'm popular!

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lewdev

remix of d/34331 by u/ximavus

function u(t) {

onmousemove=e=>{r=c.getBoundingClientRect();x.fillRect((e.x-r.left)*c.width/r.width,(e.y-r.top)*c.height/r.height,9,9)}

Sep 17 2025 7:32 PM UTC

}// 119/140

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🎨Paint on any Canvas size (I liked the simplicity of the original though)

u/ximavus

dude I'm getting popular :D
u/ximavus

also I wanted to make it full canvas so good job
u/lewdev

u/ximavus Hehe, simple ideas lead to more ideas. Thanks for the inspiration!

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lewdev

function u(t) {

eval(unescape(escape`󭽩󭍨󚍸󚝴󟽣󛭷󪝤󭍨󟜹󞜺󚍯󫭫󩝹󩍯󭽮󟝯󫭫󩝹󭝰󟝥󟜾󭍨󪝳󦽠󫍵󬭠󦽥󛭷󪍩󨽨󛜳󝽝󧜽󩜮󭍹󬍥󦼵󧜬󦌽󦜽󜼰󛍡󟝵󟝲󟝬󟜰󚜬󬽡󭭥󚌩󛍴󬭡󫭳󫍡󭍥󚍘󚼽󤼨󨜩󛍙󛜽󠼨󨜩󚜬󬭯󭍡󭍥󚍡󚼽󫌿󛜮󜜺󬬿󛬱󞬮󜌵󚜬󬭥󬽴󫽲󩜨󩭩󫍬󥍥󮍴󚌧󧍵󡌸󜽄󧍵󡍅󡜶󙼬󛜵󛌳󚜩`.replace(/u../g,'')))

Jul 16 2025 11:16 PM UTC

}// 139/140

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🛦 Fly the Jet with Arrow Keys #interactive

u/lewdev

I removed so much just to get this to fit. It rotates slightly by default so you don't lose the plane immediately.

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