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

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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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Current theme challenge: #Food

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Xen

remix of d/8395 by u/robbyg

function u(t) {

for(c.width|=i=2e3;i--;)x.fillRect(i,S(i)*t*t,3,C(t-i)*1e3)

Jun 4 2018 11:43 PM UTC

}// 59/140

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bonus for 30seconds+

u/DataMeta

this is cool all the way to the 'end'
u/joeytwiddle

#wait_for_it

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anthonylewis

function u(t) {

p=6.2832;a=32;r=1000;for(c.width|=i=0;i<a;i++)
z=p/a*i*t,x.moveTo(960,540),x.lineTo(r*S(z)+960,r*C(z)+540),x.stroke()

Apr 27 2018 2:03 AM UTC

}// 118/140

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Windmills

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toolbox

function u(t) {

for(j=0;j<20;j++){for(i=0;i<40;i++){x.fillStyle=R(10*i,255*S(t),255*C(t*3.5));x.fillRect(j*30+i*30,i*30+C(t)*100,50*T(t),50*T(t-3.14/2))}}

Oct 27 2017 8:10 PM UTC

}// 138/140

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lynn

function u(t) {

W=c.width=99
m=Math.min
for(i=0;i<W;i++)for(y=0;y<W;y++)z=m(y,57-y),x.fillStyle=R(W,9,999*S(m(i,W-i)+z+5*S(z/5+t*4))),x.fillRect(i,y,1,1)

Feb 24 2017 5:03 PM UTC

}// 137/140

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u/sfz

sexy
u/donbright

very cool rhythym

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danny@hille.dk

remix of d/24031 by u/danny@hille.dk

function u(t) {

eval(unescape(escape`󮬽󨼮󭽩󩍴󪌽󭼽󜬱󞌻󩭯󬬨󫜽󜽥󝌻󫜭󛜻󚝸󛭦󪝬󫍒󩝣󭌨󪜽󫜥󭼬󪬽󫜯󭽼󜌬󮬬󮬩󛍲󟜨󦌽󪜯󭼪󚌶󛝓󚍴󚬴󚜩󛝓󚍴󛼲󚜭󜼩󚭘󚼨󦜽󪬯󭼪󚌶󛝓󚍴󚬴󚜩󛝓󚌭󭌪󜼥󜼮󜬩󛜲󚜪󦜬󩌽󬬾󜜿󜌺󠼨󬬩󛼷󛍺󟝓󚍘󛽤󛝴󚬹󚜯󠼨󦜯󩌪󛬵󝜫󭌪󞜩󟬱󒬻`.replace(/u../g,'')))

Oct 9 2021 10:18 PM UTC

}// 130/140

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Now i suck a football/soccer both IRL and virtual :-)

u/danny@hille.dk

uncompressed but (less bouncy) -> c.width=w=218;for(z=m=3e4;m--;)x.fillRect(X=m%w,Y=m/w,z,z),r=(i=X/w*4-2)*i+(j=Y/w*4-S(-t%3.2)-2)*j,d=r>1?0:C(r)/7,z=S(i/d-t*4)/C(j/d*.5+t)>1
u/danny@hille.dk

#d3
u/danny@hille.dk

#ball
u/danny@hille.dk

#hexagon
u/danny@hille.dk

#football

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cie

function u(t) {

c.width|=c.style[s="background"]="#f97";[...s].forEach((b,i)=>{a=S(t-i);x.font=120*a+"px f";x.fillStyle=R(0,0,0,a);x.fillText(b,i*90,550)})

Aug 18 2023 6:04 AM UTC

}// 139/140

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genuinebyte

function u(t) {

G = function G(x){return -127 * C(t*x*1.57)+128}
x.fillStyle=R(G(1), G(0.5), G(0.2), 1)
x.fillRect((G(0.15)-1)*7.55,0,5,1080)

Jan 25 2019 6:28 PM UTC

}// 125/140

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My first dweet is awfully colorful.

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katkip

function u(t) {

c.width*=1;for(i=999;i--;)x.fillRect(960+C(i*3.1416+S(i+t)*1.568+t/2)*700,540+S(i*C(i+t)/i*S(t+i))*500,9,9);

Feb 2 2019 4:24 PM UTC

}// 108/140

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Glued

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KilledByAPixel

function u(t) {

o="񏰀􏸿򺯼񳵕􀕓򺬖򤰀𦁓𐁐𤰀𤁏󓼓𣰀󔁓𐁐񢅕𠕈񥜨􀿿󚀏񥏁򳰂􀀏񌏀"
eval(unescape(escape`𩡯𬠨𨰮𭱩𩁴𪁼🐰𛁩🐲𝀰𞱩𛐭𞱸𛡦𪑬𫁒𩑣𭀨𭀥𜐼𛠵🱘𞠱𞀶𜀭𦀬𚁩𛰱𝑼𜀩𚡃𛁃𛁃🐶𞀩𚑸𛡦𪑬𫁓𭁹𫁥👒𚁶🐨𫰮𨱨𨑲𠱯𩁥𠑴𚁩𛰵𚐾🡩𙐵𚠲𙠳𚐪𞐵𛁶𛁶𚐬𦀽𝀲𜀫𪐥𜐵𚡃`.replace(/u../g,'')))

Sep 15 2019 3:43 AM UTC

}// 140/140

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Play my JS13k game Bounce Back! https://js13kgames.com/entries/bounce-back

Show more comments…
u/tomxor

Nice game :)
u/KilledByAPixel

Thanks!
u/LovelyRita

Nice!
u/tomxor

L-7, i'm loving this, i can't help but think the circles are breakfast cerial :D
u/metamero

so cute <3
u/Purpzie

how the actual flip did you get 232 characters in there
u/KilledByAPixel

416 bytes, 140 characters ;)
u/tomxor

Or 140 unicode code-points (how the server evaluates length), 232 UTF16 chars (how JS in the browser evals length), and 198 effective bytes (134 chars provided by the escape compressor as 2 bytes per surrogate pair, and 60 bytes in the image manually packed into the string "o" with 20 bits per surrogate pair + 4 chars for variable assignment outside)... :) yay i'm learning about arcane UTF16 stuff.
u/KilledByAPixel

#pixelart

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ximavus

remix of d/34331 by u/ximavus

function u(t) {

x.lineWidth=t*5
onmousemove=m=>{X=m.x*3.4;Y=m.y*3.4}
x.lineTo(X,Y,9,9);x.stroke()

Oct 3 2025 1:26 PM UTC

}// 81/140

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Too watery paint

u/lewdev

To avoid the ReferenceError: X is not defined error and having to initialize variables, you can swap X and Y with R and T since you aren't using them and are already declared.
u/ximavus

oh nice