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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alice-mx

remix of d/10754 by u/alice-mx

function u(t) {

w=S(t)*100+110;
c.width=500;
for(i=0;i<2000;i++){
v=~~(i/50)
x.fillRect(i%50*w*2+v%2*w,v*w,w,w)}

Oct 29 2018 8:39 AM UTC

}// 96/140

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thanks i hate it

u/BirdsTweetCodersDweet

w=S(t)*50+55 c.width=250 for(i=0;i<2e3;i++)v=~~(i/50),x.fillRect(i%25*w*2+v%2*w,v*w,w,w) - bit faster, 88 chars, golf your code damn it...

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rippedspine

function u(t) {

t||(a=b=X=Y=-9);r=c.width/c.clientWidth;
c.onmousemove=e=>{X=e.clientX*r;Y=e.clientY*r}
x.fillRect(a+=(X-a)*.2,b+=(Y-b)*.2,9,9)

Jan 1 2018 11:27 PM UTC

}// 127/140

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Mouse over to draw!

Show more comments…
u/sigveseb

With some easing, nice
u/trupples

Nice!
u/Frndly

Thought you’d like to know this Is also super cool on mobile. Tap tap tap.
u/rippedspine

sweet :D
u/rippedspine

TODO: use e.x and e.y instead of e.clientX/Y to shave off some bytes - trupples
u/Galaxtone

I shaved off 24 bytes! https://www.dwitter.net/d/7696

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metamero

remix of d/11869 by u/metamero

function u(t) {

eval(unescape(escape`𨰮𭱩𩁴𪁼👮🐱𜠸𞱍🐨𭀿𣐺𦰮𛠮𠑲𬡡𮐨𮐽𝰲𚡮𚑝𚐮𫑡𬀨𚁶𛁫𚐽🡴🰨𦱮𛀱𛁮𛐱𛁮𚰱𧐮𫑡𬀨𩀽🡢𚰽𣑛𚁫𚱤𚱹𚐥𮑝𚱍𦰨𪰭𩀫𮐩𙑹𧐬𨠽𜀩𛁢𙠦𮀮𩡩𫁬𥁥𮁴𚁶🰧𧁵𜠵𡡃𙰺𨠬𜠫𜐵𚠨𪰥𫠩𛀹𚰱𝐪𚁫𛱮𯀰𚐩𛁢𧠲🱢🐽𜰺𭠩𞡍𨑴𪀮𬡡𫡤𫱭𚀩🠮𝐩`.replace(/u../g,'')))

Jan 22 2019 7:35 PM UTC

}// 139/140

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this enormous evolving minefield certainly deserves your fullscreen #gameoflife behind the scenes

u/metamero

c.width|=n=128;M=(t?M:[...Array(y=72*n)]).map((v,k)=>t?([n,1,n-1,n+1].map(d=>v+=M[(k+d+y)%y]+M[(k-d+y)%y]),v&&x.fillText(v,2+15*(k%n),9+15*(k/n|0)),v^4?v==3:M[k]):Math.random()>.5)
u/DataMeta

Cool!

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Jugger

remix of d/7591 by u/Jugger

function u(t) {

c.width=700
p=Math.PI
for(i=-5;i<5;i+=.0025)
x.fillRect(350+S(1.25*t+(i-p)%p)*200,S(2.5*t+i*2)*100+200,5,5)

Apr 7 2018 10:41 AM UTC

}// 107/140

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Pascal

remix of d/21116 by u/pavel

function u(t) {

for(c.width|=0,i=10600;i--;)i/500-10>T(T(S(i%40/6.5)*S(i/500+4*t))-1.57)*9&&x.fillRect(i%40*8,i/10,8,8);for(i=5;i--;)x.drawImage(c,i*320,0)

Jan 5 2021 6:58 PM UTC

}// 139/140

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this thing, but chess

u/tomxor

:P all of these are actually the same basic function, was that pure accident?
u/tomxor

Actually it's draughts not chess 😄
u/erin

checkers..?

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Inkbox

function u(t) {

x.fillStyle=R(Math.random()*255,Math.random()*255,Math.random()*255,255);
x.fillRect(Math.random()*1920,Math.random()*1080,t*2,t*2);

Jan 7 2018 4:39 PM UTC

}// 132/140

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sandromiccoli

function u(t) {

x.fillStyle=R(0,Math.random()*255,0.1)
for(i=0;i<100;i++)
x.fillRect(c.width*(S(t+i)+1)/2,c.height*(C(t+i/100003.5)+1)/2, 10, 10)

Dec 29 2017 8:27 PM UTC

}// 129/140

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KilledByAPixel

function u(t) {

B='🗨️'
eval(unescape(escape`󭌿󭌪󟜶󜌺󮌮󭍲󨝮󬽬󨝴󩜨󞜶󜌬󜬲󞜩󒭸󛭳󨽡󫍥󚌭󜜬󜜩󒭸󛭦󫽮󭌽󚍴󟌴󟼵󞬱󚜫󙽩󫬢󙼻󒭴󟌹󙬦󮌮󩭩󫍬󥍥󮍴󚍴󟬲󟽓󭍲󪝮󩼮󩭲󫽭󠽯󩍥󤍯󪝮󭌨󜜲󞌵󜜱󚽍󨝴󪌮󬭡󫭤󫽭󚌩󚬸󜍼󜌩󞭂󛌮󛬮󭌼󜬿󦼹󜌬󜜸󜍝󞭴󟌴󟽛󜜹󞜬󝼳󜍝󞭛󭌪󝬰󛌰󧜩`.replace(/u../g,'')))

Jul 20 2021 11:30 PM UTC

}// 138/140

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Emoji Cartoon 🗨️😋

u/rodrigo.siqueira

Now I see that it generates random cartoons, nice.

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rodrigo.siqueira

remix of d/33895 by u/rodrigo.siqueira

function u(t) {

for(i=3e4;i--;){
r=S(n=i*i/t)*S(n)**-1.3
X=C(k=i/4)
Y=S(k)
Z=r*r*S(C(i+r*8)*2)/400
x.fillRect(960+X/Z,540-Y/Z,.1,t<3)}

Jun 3 2025 2:17 PM UTC

}// 118/140

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Intertwined 8/16-spiral #spiral

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katkip

remix of d/9421 by u/katkip

function u(t) {

if(!t){l=0;r=-1}x.fillStyle=`hsl(${S(r+t)*l*25},99%,50%)`;x.fillRect(++r*50,l*50,50,50);if(r>38){l++;r=-1}

Aug 25 2018 11:56 AM UTC

}// 106/140

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