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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rodrigo.siqueira

remix of d/11131 by u/rodrigo.siqueira

function u(t) {

c.width|=N=890;x.font='3em"'
JSON.stringify(Object.keys(this)).split`"`.some((_,i)=>x.fillText(_,S(t+i)*280+N,N+i*9-Math.abs(S(t/40)*5e3)))

Nov 23 2018 6:13 PM UTC

}// 139/140

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DNA CODE

u/katkip

that's smart
u/lionleaf

#dna

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tomxor

function u(t) {

c.width=w=120
for(i=w*33;i--;x.fillRect(i%w,i/w*2,1,2))f=i%w+t*60,n=T(0|(i/w+f^f-i/w)/(t**.7+6)),x.fillStyle=R((n&1)*i/n/8,n**n,(n&3)*i/n/4)

Nov 3 2018 5:53 PM UTC

}// 140/140

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#retro #fractal #game

Show more comments…
u/tomxor

For the lazy game designer... Just add chip tunes and a player :D
u/tomxor

#crt #degauss #sidescroller
u/magna

Awesome!
u/magna

I had a RGB CRT setup, but I hadn't been able to fit any interesting patterns: d/7512
u/tomxor

I had a look at yours magna, they are true crt, much more realistic i think. The scan lines on this are just a sideeffect I exploited and it was easy to add colour distortion in the R().
u/magna

Here we go: d/10843
u/C010011012

is it a cellular automata?
u/tomxor

Yes and no, it's a fractal n=T(0|(i/w+f^f-i/w)/(t**.7+6)) which is just a more elaborate variation of serpinsky triangles to produce more interesting patterns. Some fractals are automata, but not all automata are fractals, see here: https://en.wikipedia.org/wiki/Rule_90
u/tomxor

The implication is serpinsky triangles are computationally reducable, meaning it does not have to be computed in the same way as a cellular automata i.e state can be computed at step t directly without traversing intermidiate steps.

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pavel

remix of d/10485 by u/joeytwiddle

function u(t) {

for(z=42;j=z-->>1;x.fillRect(960+S(k)*15-w/2,540+C(k)*15+w/2-r,w,2*r-w))k=7*t-j/2,x.fillStyle=`hsl(${15*k},33%,${7*j}%)`,r=50*j,w=r*(.5+z%2)

Oct 20 2018 8:43 PM UTC

}// 140/140

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Fixed the plus shape in the back and added color cycling

u/pavel

Check it out in fullscreen

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veubeke

function u(t) {

for(c.width|=i=128;i--;x.fillText('🦈',960+(C($*2)+C($*5)/9)*8*_+S(t)*500,(1-y)*1200))y=($=t+i)/10%1,x.font=((2+S($*2))*(_=10+y*50)|0)+'px"'

Sep 12 2018 8:19 PM UTC

}// 139/140

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Sharknado

Show more comments…
u/f8f82804

#emoji
u/Xen

Love It!
u/aleamb

lol!
u/f8f82804

#d3
u/sigveseb

Haha
u/zanella

... and THAT, my friends, is the reason why Dwitter was invented.
u/magna

Very topical
u/joeytwiddle

#emoji #tornado

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aleamb

function u(t) {

c.width=512;b=136;for(y=b;e=0.7*y,f=y-60,f*=f,y-=2;)for(m=b;m--;)d=m-70,z=S(t)*b*Math.exp(-1e-3*(f+d*d)),x.fillRect(m+e+b,-z+e+100,1,1)

Feb 14 2018 1:37 AM UTC

}// 135/140

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Shorter version: c.width=512;b=136;h=60;for(a=b*b;a--;)m=a%b-h,y=a/b-h,e=0.7*y,x.fillRect(m+e+100,S(t)*b*Math.exp(-1e-3*(y*y+m*m))+e+150,1,1)

u/iverjo

Further, 0.7 can be replaced with .7
u/aleamb

#function #p3d
u/aleamb

#math
u/aleamb

#d3

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AnnanFay

remix of d/6857 by u/olligobber

function u(t) {

c.width|=i=8
for(m=200,r=t;i--;m=-m)x.stroke(new Path2D(`M960,${520-m*13/8}l${p=m*S(r)},${m}l${(q=m*S(r+=.79))-p},${m*5/4}h${m*C(r)-q}`))

Feb 11 2018 3:42 PM UTC

}// 137/140

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u/Yogeshp3

It's one of those things that you can't tell whether it's rotating clockwise or anticlockwise

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Moosething

function u(t) {

x.globalCompositeOperation='xor';
x.fillRect(960,1079,1,1)
x.drawImage(c,-1,-1)
x.drawImage(c,1,-1)

Jan 11 2018 3:20 PM UTC

}// 99/140

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Show more comments…
u/Xen

nicely done
u/Jezza

Very cool!
u/sandromiccoli

beautiful
u/Qwitter

Nice!
u/nyarmith

wild
u/katkip

#gameoflife
u/katkip

(it really is a game of life rule)

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DirtyDan

remix of d/5711 by u/DirtyDan

function u(t) {

b=540
c.width=1920
t*=t
for(i=0;i<b;i++){
x.fillStyle=`hsla(${i+t*20},90%,50%,.3)`
x.fillRect(960+i*C(r=i/b*t)-25,s=b+i*S(r)-25,50,50)
}

Jan 7 2018 8:14 PM UTC

}// 137/140

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credit to u/DonKarlssonSan for the color code (from d/5714)

u/DirtyDan

d/5714
u/DonKarlssonSan

Yea, hsl is good for rainbow colors. I use it all the time on CodePen, like this one: https://codepen.io/DonKarlssonSan/pen/XdQGoY
u/DirtyDan

New to javascript, didn't know editing a hue value was an option, thanks.
u/Xen

dude.... join the chat, eveyones there ready for questions ;-)
u/nml

whoa

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rikardlindstrom

remix of d/5542 by u/rikardlindstrom

function u(t) {

i=c.width=196;x.lineWidth=.1;for(;i--;)x.moveTo(196,l=i+C(t*2+i/40)*S(t*9+i/10)*i/9),x.lineTo(0,5+l/1.2),x.lineTo(196-i,l/2);x.stroke();

Jan 5 2018 7:54 PM UTC

}// 136/140

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more cloth

u/magna

Wow!
u/iverjo

Smooth!
u/donbright

silky
u/sj_

I literally gasped when I saw this.
u/joeytwiddle

#material #cloth

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donbright

remix of d/3697 by u/Citiral

function u(t) {

w=1920;for(c.width=i=w;i-=10;)for(j=w;j-=10;){
d=(i*i+S(3.14*(i/w))*j*j)/frame
o=d%9
x.fillRect(i,j,o,o)}

Jan 2 2018 3:15 AM UTC

}// 105/140

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u/joeytwiddle

I was about to comment "donbright would like this one" but then suddenly ... !
u/magna

Wow!
u/Xen

one of my new fav's, love this!