Dwitter - javascript demos in 140 characters

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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magna

remix of d/8757 by u/micahcowan

function u(t) {

c.width|=D=C(r=3*S(t))
x.setTransform(1+9*D,U=S(r)*5,0,9+D,825-40*U,99*D)
for(i=9;--i;x.fillRect(-52.5+i*10,40,5,20))x.fillStyle=R(D<0&&255)

Jun 27 2018 5:38 AM UTC

}// 140/140

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Show more comments…
u/micahcowan

😍
u/micahcowan

Very useful shortcuts, I'll have to use them in future. ...I'm thinking like a C programmer - in the C standard the order in which arguments are evaluated is unspecified; apparently the ES standard strictly defines order-of eval to be the intuitive left-to-right order. Good to know!
u/micahcowan

Ha, it feels "wrong" to set fillStyle 9 times in a row. But a great way to eliminate that last little character!
u/micahcowan

#default
u/magna

When you're out of characters you can shave "legally", you have to start compromising and enter the "wrong" and/or "meh, it's just a good approximation" territory :)
u/magna

Like Math.PI * 2 === 7
u/micahcowan

Heh, totally. :D
u/pythech

hack to save 2 chars: x.fillStyle=R(-D*9e7)
u/pythech

I guess that's "meh" territory
u/magna

@pythech nice!

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firegodjr

function u(t) {

with(x)for(fillRect(p=3.14,0,Y=2e3,Y),k=Y;k--;)arc(960,540,j=k/4|0,v=k%4*p/2+S(t*3-j/70)+t,v+200/j),stroke(),beginPath(fillStyle="#fff1")

Jun 26 2018 1:32 AM UTC

}// 137/140

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The Orb

u/magna

Whoa!
u/Xen

nice style
u/firegodjr

Thanks guys ^^

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Xen

function u(t) {

for(i=9;i--;x.strokeStyle=`hsl(${t*i*t},99%,40%)`)x.strokeRect(400+i*99+S(t)*300,400,50,200)
x.drawImage(c,C(t/4),S(t/4))

Jun 27 2018 7:18 PM UTC

}// 121/140

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#default

u/DataMeta

Totally cool

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yokljo

function u(t) {

c.width|=0
x.font="900px A"
x.fillText("🏢",g=700,g)
x.font="90px A"
for(i=0;i<9;i++)n=(t+i)*90%350,x.fillText("🚹",g+n/2+i*17,1160-n)

Jun 27 2018 12:55 PM UTC

}// 132/140

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u/micahcowan

Damn! Worked on Chrome on my Android, but not Chrome on my Mac (weird). The building isn't visible. #emoji
u/joeytwiddle

256px is the highest you can go on Mac Chrome, 324px on Mac Firefox. To work around, scale down the canvas.
u/BirdsTweetCodersDweet

Works fine on Chrome on Linux

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yokljo

remix of d/8774 by u/Feiro

function u(t) {

with(x)for(k=2e3;k--;beginPath(fillStyle="#0001"))arc(960,540,k/4,v=k%4*1.57+S(t*3-k/280)+t,v+.2),strokeStyle=R((S(t)+2)*50),stroke()

Jun 28 2018 12:55 PM UTC

}// 133/140

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u/firegodjr

Excellent gradients!

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jylikangas

function u(t) {

c.width=900
for(j=9;j--;x.beginPath())for(a=T(t/j),i=16;i--;x.stroke())x.lineTo(200+j*60+S(t)*99+S(a+=(7-i)%2*11)*25,240+(i%4>>1)*99+C(a)*9)

Jun 24 2018 9:58 AM UTC

}// 140/140

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Wireframe #default

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u/aleamb

greeeeat!
u/magna

YAY!
u/joeytwiddle

Brilliant
u/donbright

my gosh....
u/vain

great work / code !
u/joeytwiddle

That's not a #cube, it's eight cuboids!

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micahcowan

remix of d/8761 by u/magna

function u(t) {

c.width=240
with(x)font='6em"',fillText('👌',110,110),setTransform(0,-1,-1,0,160,30),fillText('☝️',-110,100+S(t*10-8*S(5*t/12))*10)

Jun 27 2018 8:14 PM UTC

}// 130/140

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u/magna 's NSFW, golfed, and with "variable intensity" ;)

u/micahcowan

#emoji
u/Galaxtone

105,92 works better for me
u/Galaxtone

probably depedent on browsers tho.
u/katkip

No #nsfw pls

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micahcowan

function u(t) {

c.width=1920
for(i=0;i<9;i++)
j=i/9*i/9,U=1+S(t),x.fillStyle=R(255*U*j),x.fillRect(100+i*100+U*(200*(1-j)),400+(1-i%2*2)*280*j*U,50,200)

Jun 26 2018 10:24 AM UTC

}// 136/140

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u/magna

#default

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firegodjr

remix of d/8752 by u/firegodjr

function u(t) {

with(x)for(fillRect(0,0,Y=2e3,Y),k=Y;k--;)arc(960,540,j=550-k/4|0,v=k%4*3.14/2+S(t*3+Y/j)+t,v+99/k),stroke(),beginPath(fillStyle="#fff1")

Jun 26 2018 7:39 PM UTC

}// 137/140

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u/magna

#metallic

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DataMeta

remix of d/8733 by u/DataMeta

function u(t) {

for(i=51;i--;)o=i*3,x.lineWidth=i,x.strokeStyle=R(o*9,o,o),x.beginPath(),x.arc(360+t*t*7,540+S(T(t))*i/2,Math.abs(256-t*t),0,7),x.stroke()

Jun 25 2018 7:58 PM UTC

}// 138/140

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fabric test 2: windsock boogaloo

u/lionleaf

#fabric and for the more exotic hashtag: #windsock . Let's see if that one fills up with dweets
u/lionleaf

#texture
u/Xen

very impressive