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.

Try the new frontend: beta.dwitter.net
Current theme challenge: #Food

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sortie

function u(t) {

eval(c.id+=String.fromCharCode((Q="㬻籴硼琮慲獮慬整㤨〶㔬〴㬩⹸潦瑮✽攵⁭❁栻ㄽ㜲㔮砻昮汩卬祴敬刽䌨琨⨩⭨ⱨ⡓⨵⥴株栫匬㌨琪⨩⭨⥨砻昮汩呬硥⡴⹣摩㌬〰匪㌨琪Ⱙ㔲⨰⡃⨷⥴㬩⹸潲慴整ㄨⵅ⤲⼯".charCodeAt(t*60))%256,Q>>8))

Mar 2 2017 10:03 PM UTC

}// 140/140

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I'd like to announce the dwitter character limit has been increased to 146 characters.

Show more comments…
u/iverjo

Details please?
u/sigveseb

kinda dangerous though, you might run into a partial dweet that forces an endless loop
u/sortie

We're restricted to 140 unicode characters, not 140 bytes. I exploited UTF-16 to encode two ascii values per UTF-16 codepoint. Since the overhead is less than 70 bytes, I can exceed the 140 ascii char limit. The characters 㬻 and ⼯ are fun exercises for the reader.
u/sortie

The decoder is quite golfed and exploits some fun facts. The payload itself is a quine exploiting decoder side effects.
u/sortie

sigveseb, admittedly I didn't think of that case. Partial dweet initial loops are easily fixed wrapping the payload in {} (or any other syntax error) at the cost of 1.5 codepoints (㬻 has one free byte).
u/donbright

wow!

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Run

function u(t) {

c.width*=1;
for(i=0;i<1550;i++){
x.fillRect(X=i+S(t+i)*300,400+200*C(t+i)+200*S(X/300+t),50,50);x.fillStyle=`hsl(`+(X/7+t*30)+`,80%,50%)`;}

Mar 2 2017 6:42 PM UTC

}// 139/140

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More of the tubes of the internet.

u/sfz

shwank

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ivansanchez

function u(t) {

w=c.width+=0;x.fillRect(0,0,w,w);for(i=0;i<1000;i+=3)x.fillStyle='#a'+(~~(i*99)%0xff),x.fillRect(w+(t*(-S(i)+C(i))*5e3)%w,i,200/S(i),3)

Mar 2 2017 5:56 PM UTC

}// 135/140

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u/iverjo

#bartjs
u/sfz

go speed racer go!

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SpecialAgent

function u(t) {

c.width^=0;r=400;A=[.4,.7,1,1.5,1,2,4,7];for(n=4;n--,q=r*A[n],d=t/A[n+4];)x.arc(r*2,r,q,1,9),x.stroke(),x.fillRect(r*2+q*C(d),r+q*S(d),9,9)

Mar 2 2017 10:55 AM UTC

}// 139/140

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Illustrates the orbits of the first 4 planets in our solar system. The distance from the sun (not shown but expected in the center) and the orbital periods are to approximate scale. Variable A holds the planetary data, positions 0-3 indicate the distance in Astronomical Units from the sun, positions 4-7 the number of days for orbital periods. These are rounded to fit into the 140 byte limit. Earth should be 3.65, but is rounded up to 4. Not perfect but a close approximation. q is the radius of each orbit (derived from the AU distance), and d is the angle of the planet on the orbital path (derived from the days per orbital period).

u/donbright

hell yeah
u/donbright

remix to show e-v orbital resonance https://www.dwitter.net/d/1811
u/donbright

i wish i could vote twice on SpecialAgent's dweet, so cool.
u/SpecialAgent

Thank you donbright :)
u/SpecialAgent

A golfed version that tunes earth's orbital period to 360 days, and speeds up the simulation: c.width^=0;r=600;for(n=4;n--,q=r*[.2,.3,.5,.75][n],d=t*2/[1,2,3.6,7][n];)x.arc(r,r,q,1,9),x.stroke(),x.fillRect(r+q*C(d),r+q*S(d),9,9)

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ClayCowgill

function u(t) {

for(j=0;j<900;j++)x.globalAlpha=.3,
i=S(t)*4,s=S(t+j),o=C(t-j),x.fillStyle=`hsl(${j-t},100%,50%)`,x.fillRect(950+j*s,500+j*i*o/3,10,10)

Mar 2 2017 7:14 AM UTC

}// 135/140

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u/Purpzie

Shortened by 18 characters: for(x.globalAlpha=.3,j=900;j--;)x.fillStyle=hsl(${j-t} 99%50%),x.fillRect(960+j*S(t+j),540+j*(S(t)*4)*C(t-j)/3,9,9)
u/Purpzie

Wait, 2 more characters can be shaved off so now it's 20 characters less than yours: for(x.globalAlpha=.3,j=900;j--;)x.fillStyle=hsl(${j-t} 99%50%),x.fillRect(960+j*S(t+j),540+j*S(t)*4*C(t-j)/3,9,9)

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recursive

function u(t) {

t*=256
for(X=120;X--;)
for(Y=68;Y--;x.fillRect(X<<4,Y<<4,16,16))a=Math.atan2(Y-34,X-60)*326,x.fillStyle=R(a+t&255,a-t&255,(X*X+Y*Y)*5-t&255)

Mar 1 2017 10:33 PM UTC

}// 140/140

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u/sigveseb

nice!
u/iverjo

This looks like a combination of 2-3 effects. I'm impressed!

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FireFly

function u(t) {

x.strokeStyle='hsl('+t*8+',90%,50%)'
x.beginPath()
for(i=24;i;x[i-24?'lineTo':'moveTo'](960+--i*20*C(U=i/4+t/4),540+i*20*S(U)));
x.stroke()

Feb 28 2017 4:37 PM UTC

}// 139/140

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u/donbright

cool hsl

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hamptonio

function u(t) {

s=t*9%32|0;for(i=0;i<6.3;i+=.001){k=16-s;q=s%2*255;x.fillStyle=R(q,0,s*8);x.fillRect(960+29*(k*C(i)+C(k*i)-k),540+29*(k*S(i)-S(k*i)),1,1);}

Feb 27 2017 5:26 AM UTC

}// 139/140

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Hypocycloids and epicycloids.

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sigveseb

remix of d/1443 by u/sigveseb

function u(t) {

with(x)(F=a=>fillStyle='#'+a)('e22'),x.Q=fillRect,Q(0,0,W=2e3,W),F('fff'),Q(0,390,W,300),Q(500,0,300,W),F(228),Q(0,465,W,150),Q(575,0,150,W)

Feb 26 2017 8:58 PM UTC

}// 140/140

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u/highfestiva

Tiiiny, just like the average Norwegian intellect. ;-)
u/M1T0

got em
u/iverjo

#flag

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5Mixer

remix of d/1293 by u/5Mixer

function u(t) {

w=c.width=2e3
o=0
while(o++<9){l=r=o
x.fillStyle="#"+o*22
q=t*o*20
while(l<w+q){r=r*9e2%23e4
s=.7*r/w
x.fillRect(l-q,w/2-s*9,s,r)
l+=s}}

Feb 25 2017 12:43 PM UTC

}// 137/140

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