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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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

Show more comments…
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

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magna

remix of d/8740 by u/magna

function u(t) {

with(x)for(i=fillRect(0,0,c.width=w=255,w)|99;i--;fill(arc((t*b+i)*i+w&w,99+b,5+b/5,!beginPath(),7)))b=i&1?1:-1,fillStyle=R(w,b*w,b*w*.8,.2)

Jun 26 2018 12:21 PM UTC

}// 140/140

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Highway at Night - yellow headlight edition with westbound traffic bugfix

u/magna

#bokeh #traffic
u/magna

i&1?1:-1 can be i&1||-1

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Xen

function u(t) {

x.font="59em'"
x.strokeText('2K',400+C(t)*49,800+S(t)*49)
x.strokeStyle=`hsla(${135*t},99%,50%,.1)`

Jun 25 2018 12:49 AM UTC

}// 99/140

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2000 Awesomes!

u/lionleaf

Soon.... Congrats!! :D
u/joeytwiddle

2001 a Xen oddity
u/DataMeta

Congrats!

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tobias

function u(t) {

s=540;x.beginPath(c.style.background=R(x.strokeStyle=`hsl(${8*t},80%,50%)`));x.moveTo(q=S(t/9)*s+s,S(t)*s+s);x.lineTo(C(t)*s+s,q);x.stroke()

Jun 25 2018 8:22 PM UTC

}// 140/140

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u/lionleaf

#laser patterns! Looks different in fullscreen :)
u/Xen

love it
u/DataMeta

dope