Dweets awesomed by u/walsh9

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: #ScaryMovies

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Xen

function u(t) {

t?(x.lineTo(X,y),d&1?y+=d&2?Y:-Y:X+=d&2?-Y:Y,x.stroke(),d+=++i/(i&-i)):(y=500,X=800,i=d=0,Y=9)
    
//Speed Vs Quality: Raise or Lower 'Y=?'

Aug 11 2017 5:13 PM UTC

}// 140/140

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u/cantelope

great work!
u/Xen

thank you :)

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FireFly

function u(t) {

for(i=5e3;i--;i%4||x.beginPath())Z=i/128+i%2,X=i/4%32+(i%4>1),x.fillStyle=R(Y=S(X*X/32+Z*Z/32-X-Z-t*6)*80+99),x.fill(x.lineTo(X*60,Z*35-Y))

Aug 2 2017 9:02 PM UTC

}// 139/140

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Ripples!

u/alien

Respect

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p01

remix of d/2961 by u/p01

function u(t) {

for(X=c.width=240;X--;x.fillRect(X,D*3,1-D/8,99-D*6))for(D=0;'.'<(u+1)[t*2+D*C(T=X/240-.5-C(t)/4)&7|(3.5+D*S(T))<<3]&&D<8;)D+=.1

Jul 29 2017 7:12 PM UTC

}// 128/140

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Homage to WOLFENSTEIN 3D in 128 bytes

u/p01

This is pretty much a port of WOLFENSTEINY - http://www.p01.org/wolfensteiny/
u/iverjo

Impressive!
u/iverjo

#wolfenstein

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scottglz

function u(t) {

for(X=71;X--;)for(Y=40;Y--;)x.fillStyle=X<24&Y<21?Y%2|X-Y&3|!Y|!X|Y>18?'#00f':f:Y/3&1?f='#fff':'red',x.fillRect(X*25,(Y+S(X/9+t))*25,25,25)

Mar 18 2017 5:00 AM UTC

}// 139/140

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u/sfz

can't believe you did it!
u/magna

I salute this dweet.

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mxfh

remix of d/2180 by u/aemkei

function u(t) {

for(i=W=c.width=2e3;i--;x.beginPath(),x.arc(W*(T(i/9)+s*t)%W,540+540*S(s*W),s*30,0,7),x.fill())s=149/(i*3+199)

Mar 18 2017 3:05 AM UTC

}// 110/140

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arc all the things

u/iverjo

#parallax #dots
u/mxfh

#arc

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codeslaw

function u(t) {

x.fillRect(0,0,$=2e3,$)
i=3e3;while(i--){x.strokeStyle=`hsla(${i*C(t/21)},79%,49%,.3)`;π=i%$||x.stroke()|x.beginPath()
x.arc(0,i/$*π,π,0,7)}

Mar 18 2017 1:21 AM UTC

}// 140/140

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Curves, colors, lights, and shadows.

Show more comments…
u/sigveseb

Very nice!
u/iverjo

Nice in Chrome, but froze my Firefox for like 15 seconds
u/codeslaw

😅 You can play around with lowering i and $ to raise the frame rate ¯\_(ツ)_/¯
u/donbright

i like the elegance of this, really has a special look to it
u/donbright

i like the elegance of this, really has a special look to it
u/joeytwiddle

#shiny

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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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magna

remix of d/2172 by u/magna

function u(t) {

c.width=w=1920;h=1080;n=128;m=72;s=w/n;for(i=n*m;i--;X=i%n,Y=i/n,b=S(X/Y+t*t),x.fillRect(X/n*w,Y/m*h,b*s,b*s));

Mar 17 2017 7:16 PM UTC

}// 111/140

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u/recursive

like a corn field from the drivers' seat

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sfz

remix of d/2158 by u/sfz

function u(t) {

c.width=w=480;x.fillRect(0,0,w,w);t*=3;for(i=99;i--;t+=i)for(j=7;j>0;x.fillText((u+'')[~~t*j%137],t%w,t*i%w-i*j--))x.fillStyle=R(0,i?w:0)

Mar 17 2017 5:15 AM UTC

}// 137/140

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Metamatrix

u/donbright

i wonder if there is a way to mix this with Kalanchoe's technique from https://www.dwitter.net/d/1395
u/donbright

something like this r=Math.random t?o.push({X:480*r(),c:~~(r()*99),Y:0,ẏ:1}):(o=[]) c.width=480 o.map(a=>(x.fillText(String.fromCharCode(a.c++),a.X,a.Y+=a.ẏ)))
u/sfz

well, if you change the for loop to something like for(i=99;i>18;t+=i--) it gets rid of the clumpy crap on the left side, but I didn't figure that out until afte posting.
u/scottglz

The clumpy crap is my favorite part
u/joeytwiddle

#matrix

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metaphalanges

function u(t) {

d=12;for(i=1;i<161;i++){for(j=1;j<91;j++){v=255-T(t+S(i+80)*t+C(j+45)*t)*125;x.fillStyle=R(v*S(t),v*C(t),v*T(t));x.fillRect(i*d,j*d,d,d);}}

Mar 16 2017 4:13 PM UTC

}// 139/140

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u/donbright

excellent colors

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