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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clogn

function u(t) {

var r = c.width*S(2*t)/4;
x.fillStyle = R(255*S(t),255*C(t),255*S(2*t));
x.fillRect(c.width/2,c.height/2,r*S(t),r*C(t))

Dec 29 2017 10:40 AM UTC

}// 119/140

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danny@hille.dk

remix of d/24010 by u/danny@hille.dk

function u(t) {

c.width=w=218;for(m=3e4;m--;T=S(X/d-t*16)*C(Y/d))x.fillRect(i=m%w,j=m/w,T**.1,2),r=(X=i/w*4-2)*X+(Y=j/w*4-1.1)*Y,d=r>1?S(t*4%3)/5-.4:C(r)/9

Oct 17 2022 11:15 AM UTC

}// 139/140

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#uncompressed bouncy #ball remix

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New_Core

function u(t) {

a=c.width=100;d=x.getImageData(0,0,a,a);p=d.data;for(i=3e4;i-=4;)b=a*S(i/5e3+t),q=i%400,p[i]=b+q,p[i+1]=-b+q,p[i+3]=i;x.putImageData(d,0,0);

Aug 24 2016 3:40 PM UTC

}// 140/140

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A 2 color plasma, couldnt fit the 3:d color

u/icecuber

Can you fit the 3:d color with this (reduced 21 bytes)? a=c.width=99;d=x.getImageData(0,0,a,a);for(i=3e4;i--;)d.data[i]=i%396+[b=S(i/5e3+t),-b,,i][i%4]*a;x.putImageData(d,0,0)
u/New_Core

nice.. that is much better
u/New_Core

a 3 color test added on icecubers code a=c.width=99;d=x.getImageData(0,0,a,a);for(i=3e4;i--;)d.data[i]=i%396+[S(q=i/5e3+t)*0.6,S(q+t)*0.3,S(q+t*4),i][i%4]*a;x.putImageData(d,0,0)
u/iverjo

Nice :) I find your attempt at plasma better than mine: Btw, you can replace 0.6 with .6 and similarly for 0.3
u/iverjo

https://dwitter.net/d/48

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f8f82804

function u(t) {

for(i=c.width=1760;i--;x.fillRect((i>>5)<<5,((i&32?i:~i)&31)<<5,32,32))x.fillStyle=`hsl(${i/4.8} 50% 50%`;

Jan 2 2022 9:14 PM UTC

}// 106/140

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#rainbow #boustrophedon

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ArthurThuczsec

remix of d/21778 by u/erin

function u(t) {

for(i=1e3;i--;)x.fillRect(t*29,i&i*t/29,1,1)

Jun 23 2021 8:40 PM UTC

}// 44/140

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u/donbright

#slowburn
u/GreyHope

Make it faster!
u/rep_movsd

Looks like a 1d cellular automaton

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geb

remix of d/12933 by u/vinca

function u(t) {

for(i=3e3,t*=99;i--;)x.fillRect(t|i,t,1,1)

Mar 30 2019 3:14 PM UTC

}// 42/140

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u/DataMeta

This must be nearly the shortest dweet
u/Xen

nice find geb, check 2923 datameta, altho xem and others have done smaller ;)
u/katkip

Wow!
u/geb

better tag them from now on #Sierpinski
u/pavel

Basically the same thing but in 40: for(i=3e3,t*=99;i--;)x.fillText(1,t|i,t)
u/Xen

37 but not as good: for(t*=i=1e3;i--;)x.fillText(i,t|i,t)

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pavel

function u(t) {

for(c.width|=f=(k,n=9)=>n&&C(n**.9*k)/n+f(k,n-1),x.translate(h=960,i=0);i++<h;x.fillRect(r=h/z,r,-2*r,9/z/z))z=i/42,x.rotate(f(z+3*t)/180)

Apr 24 2020 2:49 AM UTC

}// 138/140

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https://twitter.com/ntsutae/status/121468374…

u/Xen

sexy lines
u/pavel

It seems like Safari plays dweets significantly slower until you tap on them... Giving the iframe focus increases the request animation frame rate.
u/katkip

very sexy

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DaSpider

remix of d/32746 by u/KilledByAPixel

function u(t) {

t*=780
$=a=>a.repeat(300)
x.fillText($(['🟥','⬜'][t>360&t<720]),1,t)

Nov 12 2024 6:41 PM UTC

}// 67/140

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🇦🇹

u/joeytwiddle

#flag

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Woodmouth

function u(t) {

if(t==0){a=99;b=a;d=0}
m=Math
x.fillRect(a+=9*m.sin(d),b+=9*m.cos(d),9,9)
d+=m.random()-.5
if(b>1080)d=3
if(b<0)d=0
if(a>1920)d=5
if(a<0)d=2

Apr 11 2017 6:16 PM UTC

}// 140/140

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Let me know if you find a better way to keep the "fly" within the canvas. (Other than 4 if-statements i mean)

Show more comments…
u/reportbase

You should use fillstyle to vary the color a little i think.
u/Artfarnaa

You can use C instead of m.c.
u/donbright

t?x.fillRect(a+=9*S(d),b+=9*C(d),9,9):(b=a=99,d=0) d+=Math.random()-.5 d=b>1080?3:(b<0?0:(a>1920?5:(a<0?2:d)))
u/donbright

that will free up 30 characters. line split before d+ and d=b
u/joeytwiddle

Nice compass movement! I like don's if?then:else but i think his (parentheses) can be left out
u/joeytwiddle

An alternative is to wrap around: fillRect(a=(1920+a+9*S(d))%1920,b=(1080+b+9*C(d))%1080,9,9)
u/z3vin

this is so frickin' cool! combo of joey n dons 96 chars: t?x.fillRect(a=(1920+a+9*S(d))%1920,b=(1080+b+9*C(d))%1080,9,9):(b=a=99,d=0),d+=Math.random()-.5
u/Woodmouth

Thanks, that looks really good. Still looking for an actual boarder though, just because of how cute it is when it keeps bumping into the wall.
u/Woodmouth

Ohh, nvm, Donbright does that. (I was just looking that the combo)
u/New_Core

maybe a x% less chance going the direction against a border the closer it gets to it could make a nice pattern. (just an idea, dont know how to do it)
u/donbright

nice work @joeytwiddle is correct abt my parenthesis

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katkip

remix of d/21662 by u/Pascal

function u(t) {

c.style.filter=`invert(`
for(c.width|=0,i=244;i--;x.fill(x.arc((X=i%18)*120,(i-X)*7.5+60,z=80+S(t+i*19+t)*50,3.9+z/7,7+z/7)))x.beginPath()

Feb 13 2021 11:12 AM UTC

}// 138/140

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d/21666

u/joeytwiddle

I see scurrying insects