Dweets awesomed by u/Trav

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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Xen

remix of d/3035 by u/artfarnaa

function u(t) {

 for(c.width|=a=48;--a;x.arc(960+S(G+t)*321,540+C(t+G)*666*S(t),a%2*99*Math.abs(S(t-G))*5,0,7))x.moveTo(G=a/2,0)
x.fill('evenodd')

Nov 19 2017 6:58 PM UTC

}// 130/140

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veubeke

function u(t) {

t?_[Math.random(B=c.width^=0)*6|0]++:_=[0,0,0,0,0]
x.font='100px O'
_.map((v,i)=>x.fillText('🐌',110+v,$=200+i*179,x.fillRect(0,$-130,B,4)))

Mar 17 2017 10:17 PM UTC

}// 139/140

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Show more comments…
u/sigveseb

Lol!
u/veubeke

Fun hack: using *6 instead of *5 for the index adds a 6th element containing NaN. The 6th line is visible but not the snail because drawing the snail involves the NaN value.
u/gabrielsroka

neat, but are the snails going backwards?
u/innovati

you're too silly :3
u/tapgiles

What's with the _?
u/veubeke

@gabrielsroka: if you have an emoji font with a snail looking left then they’re going backwards, yes
u/lionleaf

Going backwards on my phone, but forwards on my laptop. This should be part of the snail emoji spec!!
u/veubeke

I’ll bring it up at the next snail emoji consortium meeting.
u/gabrielsroka

lol, they're soooo slow, they're going backwards. and yes, mine look left
u/gabrielsroka

according to http://emojipedia.org/snail/ Apple is in the minority, and Windows 8.1 looks left
u/magna

On my computer, the best snail always wins.
u/ilSilvano

Great idea! :-D
u/iverjo

#random
u/micahcowan

#emoji #snailrace

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iverjo

remix of d/104 by u/iverjo

function u(t) {

c.width^=0;for(i=9;i<2e3;i+=2)s=3/(9.1-(t+i/99)%9),x.beginPath(),j=i*7+S(i*4+t+S(t)),x.lineWidth=s*s,x.arc(960,540,s*49,j,j+.6),x.stroke()

Feb 24 2017 6:47 PM UTC

}// 138/140

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Show more comments…
u/SpecialAgent

my hat goes off to you sir!
u/Kalanchoe

That's unbelievable
u/iverjo

Try this one in fullscreen for a more immersive experience
u/Niklas

impressive!
u/donbright

:)
u/aendrew

This is incredible.
u/vonzo

reminds me to Gescom <3
u/hvge

http://www.pouet.net/prod.php?which=3397 ❤️
u/badthai

How did you come up with this?
u/iverjo

@badthai: First I made a classic tunnel effect (like this: https://www.dwitter.net/d/205). Then I made several remixes of it by tweaking parameters. This was one of the results. See also https://www.dwitter.net/d/106
u/iverjo

#tunnel
u/vain

cool segmented tunnel fly

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icecuber

function u(t) {

c.width=1920;for(i=24;i--;)for(j=24;j--;)t+=1.7,s=S(t)*((j+i&1)*2-1),x.setTransform(C(t),s,-s,C(t),i*99,j%12*99),x.fillRect(-9,-49,19,99)

Apr 20 2016 4:54 PM UTC

}// 137/140

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u/lionleaf

Try following the "wave" with your eyes!
u/innovati

This is amazing!
u/vain

amazing and beautiful effect. Nice tricky illusion

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dwitter.net | Trav (613)