Top dweets by u/luta

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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luta

remix of d/36054 by u/luta

function u(t) {

s="k7/pp1K4/N7/8/8/8/8/7B"
throw "\n"+s.replace(/./g,x=>x<"0"?"\n":x<9?"... ".repeat(x):"♔♕♖♗♘♙♚♛♜♝♞♟"["KQRBNPkqrbnp".indexOf(x)]||"")

Aug 2 2026 3:39 AM UTC

}// 134/140

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FEN viewer for #chess puzzles alternative

u/luta

I replaced the previous version with this one which is 5 characters shorter. Opera Web browser needs a newline at the start to look good, so I added it.

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luta

remix of d/36056 by u/luta

function u(t) {

eval(unescape(escape`󭌿󜌺󮌮󭍲󨝮󬽦󫽲󫜨󭬽󛬷󛍶󛌭󭬬󭬬󞜶󜌬󝜴󜌩󞽯󫭣󫍩󨽫󟝟󟜾󮽱󟝲󟜨󬼽󝌹󞜩󚭍󨝴󪌮󬭡󫭤󫽭󚌩󯌰󒭸󛭦󫽮󭌽󙼱󜽩󫬢󙼻󮌮󩭩󫍬󥍥󮍴󚌢󧍵󡌸󜽅󧍵󡍄󝭁󘬬󛜸󜬰󛌶󜬰󚜊󩭯󬬨󪜽󜝥󝌻󪜭󛜻󮌮󩭩󫍬󤭥󨽴󚌲󝌰󛝱󛍲󛜲󝜰󛌶󛌶󚜩󬜽󚍲󚭲󚽱󚜥󬼬󬬽󚍱󚭱󚽲󚜥󬽽`.replace(/u../g,'')))

Aug 1 2026 11:46 AM UTC

}// 140/140

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#pareidolia #random oracle - click to see if your favourite idol appears on a toast bread

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luta

function u(t) {

t?0:A=[];m=Math;r=m.random
X=92+20*m.sqrt(m.log(1/(r()**2)))*C(m.PI*r())|0
a=A[X]=1+A[X]||0
t>80||x.fillRect(10*X,1080-9*a,9,9)

Aug 1 2026 10:45 AM UTC

}// 127/140

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Normally distributed #random numbers

u/cantelope

#underrated

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luta

function u(t) {

c.width=128;s="k7/pp1K4/N7/8/8/8/8/7B".replace(/./g,x=>x<"9"?"☐".repeat(x):x)
for(i=64;i--;)x.fillText(s[i],i%8*9,(1+i/8|0)*9)

Jul 31 2026 1:27 PM UTC

}// 126/140

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Mate in 3: FEN viewer for #chess #game puzzles

u/luta

Another one: 8/8/8/5K1k/5B2/6P1/6P1/4b3
u/SockTaters

you can also display them as cheese pieces like in this one d/35680

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luta

function u(t) {

eval(unescape(escape`󭌿󨼮󭽩󩍴󪍼󟝯󟝩󫭮󩝲󥽩󩍴󪌺󠜽󦽮󟜱󧜻󩭯󬬨󪜽󞌱󞽩󛜭󞽸󛭦󪝬󫍔󩝸󭌨󘭜󭜲󝝃󠽜󭜲󝬶󝝜󭜲󝬶󜜢󦽁󦽩󧜥󜽝󛌨󪜥󞜪󜬫󪜯󞝼󜌩󚬷󝜬󚌱󚽩󛼹󯌰󚜪󜜲󜌩󚝴󟽸󛭦󫽮󭌽󙼸󩝭󘬧󞭁󦽩󧜽󜌻󫽮󨽬󪝣󪼽󩜽󟭁󦼹󚬨󦜽󜜶󚭥󛭹󛽯󯌰󚜭󚍙󛜲󝼪󩜮󮌯󫽼󜌩󛼲󯌰󧜽󫬫󚼻`.replace(/u../g,'')))

Jul 22 2026 1:54 AM UTC

}// 140/140

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playable hex board with take back move option

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luta

function u(t) {

if(t<.2)for(i=2e3,Y=333+3e3*t;i--;x.fillRect(i,Y,.2+(Y-i*3)/2e4,999))Y-=4.71*C(Y-t)

Jul 13 2026 5:18 AM UTC

}// 83/140

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Here comes the sun

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luta

function u(t) {

d="♲⚀⚁⚂⚃⚄⚅♞"
eval(unescape(escape`󭌿󨼮󭽩󩍴󪍼󟜰󞭨󟝮󟝭󟝳󟜰󞽸󛭦󫽮󭌽󙼲󪝮󘬧󒭯󫭣󫍩󨽫󟝟󟜾󫬽󫜽󜼫󤼨󬼽󜜫󭌩󚬴󯌰󒭸󛭦󪝬󫍔󩝸󭌨󩍛󫝝󛌶󜌬󝌸󜌩󞽸󛭦󪝬󫍔󩝸󭌨󩍛󝽝󛌱󞌳󜌭󪌪󜜲󜌬󝌸󜌩󒭶󟝴󛝳󛝭󚽮󞽮󚭶󟬰󟼨󛜭󫬬󪌫󚼬󪌥󟜱󝼩󞭶󟬰󟽭󟜰󞬰`.replace(/u../g,'')))

Aug 5 2026 2:38 PM UTC

}// 138/140

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prize horse #game

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luta

function u(t) {

x.font='4em"';for(i=169;i--;x.fillText([..."⚪🔴🔵⚫"][2*((i+1)%13<2)+(i%156<13)],(i%13)*99+(i/13|0)*50,(i/13|0)*81+80));

Jul 22 2026 12:04 AM UTC

}// 117/140

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#printable hex board

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luta

remix of d/32610 by u/lewdev

function u(t) {

a=[];for(i=c.width=128;i<1e4;x.fillRect(X=i&127,Y=i++>>7,Y<24||X<48?a[X%16]:(X<72?a[X%12+2]:a[(X+8)%16]),1))a[i&127]=Math.random()

Jul 17 2026 5:22 PM UTC

}// 130/140

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#Stereogram (3 pillars)

u/luta

3 pillars or 4 pillars, how many do you see?

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luta

function u(t) {

eval(unescape(escape`󨼮󭽩󩍴󪍼󟜰󞽧󟜨󦌬󦜬󬬬󩌬󫬬󨬩󟜾󮽰󟝍󨝴󪌮󤍉󞽡󟝸󟜾󤼨󬌪󮌫󬌪󝜯󝌩󛼲󞽳󟜱󛼳󜬻󒭦󫽲󚍫󟝮󚬲󚼱󞽫󛜽󬼻󮌮󩭩󫍬󤭥󨽴󚍘󚽷󚭃󚍵󟝫󛽮󚭰󚜬󦜭󭼪󤼨󭜩󛌴󛌴󚜩󭼽󩌪󨜨󨬫󪼩󚽲󚬨󜜭󪼯󬼥󜬪󛬸󚝽`.replace(/u../g,'')))
g(960,540,99,99,8,-t)

Aug 2 2026 6:54 PM UTC

}// 140/140

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#Gears layout designer #tool - flower girls' version

u/luta

To get things into gears - here is my first creation with the title "engineering students in love": g(714,280,243,48,18,-6*t);g(1206,280,243,48,18,6*t-.5);g(796,685,162,48,12,6*t+.6);g(1124,685,162,48,12,-6*t+.9);g(960,969,108,48,8,1/4);

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