Top dweets of all time

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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iverjo

function u(t) {

c.width=1920;for(i=6e3;i--;)s=1/(2100-(i+t*99)%2081),q=9e4*s*s,x.fillRect(960+2e5*s*C(i*173)-q/2,540+2e5*s*C(i*2e5)-q/2,q,q)

Jul 24 2016 2:42 PM UTC

}// 124/140

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A remake of the "Starfield" screensaver that was included in Windows 98

u/iverjo

If you watch this in fullscreen and stare at the center, your brain might be fooled into believing that you are moving
u/iverjo

#starfield #stars

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maraoz

function u(t) {

c.width=99;for(X=0;X<99;X++)for(Y=0;Y<99;x.fillStyle=R(c=S(t+X*Y/(t)+t*t*9)*255,c*X/99,c*Y/99),Y++)x.fillRect(X*1,Y*1,1,1)

Jul 24 2016 3:32 AM UTC

}// 122/140

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u/sigveseb

Nice colors
u/iverjo

+1

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3bl3gamer

remix of d/342 by u/iverjo

function u(t) {

x.fillRect(0,87,c.width=300,3);x.font='49px A';for(i=7;i--;)x.fillText(String.fromCodePoint(128669-(i?0:27)),q=310-t%4*210+i*46,90+S(q/15))

Jul 23 2016 8:14 PM UTC

}// 139/140

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A bit modified iverjo's Choo choo: http://dweet.dwitter.net/id/342?autoplay=1

u/iverjo

Nice ^^ I like how you used fromCodePoint instead of fromCharCode to shave bytes. Btw, you can replace (i?0:27) with !i*27 to make the code even shorter
u/sigveseb

for..of can make this quite a bit shorter! x.fillRect(i=0,87,W=c.width=310,3);x.font='49px A';for(a of'🚂🚃🚃🚃🚃🚃🚃')x.fillText(a,q=W-t%4*W+i++*46,90+S(q/15))
u/iverjo

stiaje tried to create a dweet with unicode characters in the code, and it didn't work.. why does it work now? :D
u/iverjo

Maybe it was a problem with base64 encoding/decoding @ arkt.is/t/
u/iverjo

#train

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PhiLho

function u(t) {

c.width=W=400;D=16;H=D/2-1;
for(h=W;h-=D;)for(v=W;v-=D;){s=H*C(t+v);n=H*S(t+h);x.moveTo(h+s,v+n);x.lineTo(h-s,v-n);x.stroke()}

Jul 22 2016 2:17 PM UTC

}// 126/140

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b4rc0ll0

function u(t) {

A=new XMLHttpRequest();A.onreadystatechange=function(a){eval(A.responseText)},A.open("GET","http://blog.bulbolight.com/a");A.send();J(t)

Jul 22 2016 1:42 AM UTC

}// 136/140

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u/iverjo

This is nice, but not really in line with the concept of a dweet ;)
u/lionleaf

Nice! Is this the first interactive dweet?
u/PhiLho

A bit of cheating, but fair enough, as long as you are not imitated by lot of people... :-D
u/iverjo

This seems to be broken atm. Does not respond to mouse movements.
u/Galaxtone

It seems the link is dead

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3bl3gamer

function u(t) {

eval(new TextDecoder('utf-8').decode(new TextEncoder('utf-16').encode(`⹣楷瑤㵨㤱〲昻牯椨〽椻㤼椻⬫笩⹸楦汬敒瑣㐨〰椫ㄪ〰匫琨⨩〳ⰰ〴ⰰ〵㈬〰紩砻昮湯㵴㤧瀹⁴牁慩❬砻昮汩呬硥⡴䌧敨正漠瑵挠摯⁥债Ⱗⰰ〱⤰`)))

Jul 21 2016 11:33 PM UTC

}// 140/140

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u/sigveseb

Nice, is the compression worth the bootstrap overhead?
u/iverjo

Crazy stuff. How does it work?
u/3bl3gamer

No, it does not. Decompressor doubles characters number, but takes 75 characters by itsef. So no profit, just making some unreadable code even more unreadable :-)
u/3bl3gamer

It works by converting N utf-16 characters to N*2 bytes and then converting this N*2 bytes to N*2 utf-8 characters. This N*2 characters is JS code.
u/iverjo

A for effort

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iverjo

remix of d/255 by u/Dyno

function u(t) {

c.width=1920;for(j=64;j--;)for(i=120;i--;)a=1+S((i^j)/9+4*t),x.fillStyle=R(a*30,160-a*30,a*50+30*S(t),a/2),x.fillRect(i<<4,j<<4,16,16);

Jul 21 2016 2:03 PM UTC

}// 135/140

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Remix of Dyno's dweet: http://dweet.dwitter.net/id/255?autoplay=1

Show more comments…
u/iverjo

For a more old school feeling, replace 4*t with 4*t|0
u/sigveseb

Nice colors, reminds me of the gameboy color palette.
u/sigveseb

(Did you delete an older version of this dweet?)
u/iverjo

Yes, I deleted the old school version that quantized the colors with 4*t|0 and put it as a comment instead :)
u/sigveseb

Ok, that was was the one I meant to comment on about the gameboy color palette ^^
u/iverjo

Does it deserve to be a separate dweet?
u/sigveseb

The more the merrier :P
u/iverjo

Ok, sure :P
u/iverjo

http://dweet.dwitter.net/id/298?autoplay=1

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PhiLho

function u(t) {

c.width=400;for(i=0;i<42;i++){b=10+i*4.7;x.beginPath();x.moveTo(0,b);for(j=0;j<22;j++){x.lineTo(i+j*16,b+C(j+16+t%7)*i/2);x.stroke()}}

Jul 21 2016 12:29 PM UTC

}// 134/140

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iverjo

remix of d/268 by u/nkedel

function u(t) {

if(!t)r=0,X=960,Y=540,W=1920,H=1080;x.fillRect(X+=5*S(r+=.5-Math.random()),Y+=5*C(r),5,5),X=((X%W)+W)%W,Y=((Y%H)+H)%H

Jul 21 2016 11:35 AM UTC

}// 117/140

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With wraparound

u/iverjo

#random

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sigveseb

remix of d/271 by u/3bl3gamer

function u(t) {

c.width=256;for(i=9<<12;a=i&255,b=i>>8,m=a-128,n=b-72,i--;)A=1/(((b/n+128+t*9)%2)^(((m-128*S(t*2))/n))),A/=(n*n>9),x.fillRect(a,b,A,A)

Jul 21 2016 3:27 AM UTC

}// 134/140

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u/iverjo

Wow!
u/lionleaf

#checkerboard #perspective