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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Anomidae

function u(t) {

c.width=1920
x.font="108px Comic Sans MS"
x.fillStyle="lime"
X=S(t*9)*100;Y=C(t)*100
x.fillText("limewire is c00L",200-(-X)+Y,600+X-Y,1920)

Mar 17 2019 5:16 AM UTC

}// 139/140

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legitimate

u/joeytwiddle

Is that still going? gtk-gnutella on Linux

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marc8

function u(t) {

c.width=480
z=99
for(j=-2*z;j<2*z;j++)
{k=j<-z?j+z:j>z?z-j:0
for(i=0;i<9;i++)x.fillRect(z+i*25+S(t)*75+2*k*C(t+k/z),z+j/4,12+10*k/z,1+k/z)}

Mar 15 2019 4:00 PM UTC

}// 140/140

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#default

u/Xen

nice
u/tomxor

Eery, feels like some kind of swimming creature!

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rsrsrs

function u(t) {

for(c.width|=i=0;i<100;i++)a = 100*(5+S(t))/i,
x.fillStyle=R(i%2*255,0,0,1),x.beginPath(),
x.arc(960-a/2,540-a/2,a*a,0,2*Math.PI),
x.fill()

Mar 18 2019 2:53 AM UTC

}// 139/140

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trying to create a continuous tunnel but got stuck here for the moment

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rsrsrs

remix of d/12825 by u/rsrsrs

function u(t) {

c.width=w=2e3;hh=1080;
v="no";x.font="24em ARIAL";
r=6;l=6
for(j=0;j<r;j++)for(var i=0;i<l;i++)
x.strokeText(v,w*(j/r),200+hh*(i/l))

Mar 19 2019 2:35 AM UTC

}// 133/140

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repeat

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rsrsrs

remix of d/6443 by u/BirdsTweetCodersDweet

function u(t) {

c.width=2e3;v="no";x.font="24em ARIAL";
for(j=0;j<10;j++)for(var i=0;i<10;i++)
x.strokeText(v,0,z=600+20*S(t)*i)

Mar 19 2019 2:27 AM UTC

}// 113/140

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rsrsrs

remix of d/48 by u/iverjo

function u(t) {

w=c.width=64;
for(i=-1;i++<2304;)
X=i%w,Y=0|i/w,
z=255,
v=t%50/100,
x.fillStyle=R(z*(X*Y*v%5/5)),
x.fillRect(X,Y,1,1)

Mar 19 2019 2:05 AM UTC

}// 117/140

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rsrsrs

remix of d/6711 by u/nickd3000

function u(t) {

for(i=0;i<100;i++)g=100*t*(i%3+1),x.fillStyle='hsl('+g+',99%,50%)',x.fillRect(1920-20*i,0,10,10);x.drawImage(c,-4,4,1930-S(t*5)*10,1080+10);

Mar 19 2019 1:17 AM UTC

}// 140/140

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still not really grokking what's happening.. and what's on the right?

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yokljo

remix of d/12758 by u/yokljo

function u(t) {

c.width|=0
X=C(t)+16
Y=S(t)+9
x.beginPath()
x.lineWidth=9
for(i=9;i--;)Z=S(Y),Y+=C(X),X+=Z-S(t),x.lineTo(X*60,Y*60)
x.stroke()

Mar 15 2019 10:29 AM UTC

}// 126/140

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EmNudge

function u(t) {

x.globalAlpha=.5
for(i=100;--i;)x.fillRect(s=S(t)*1.7*800*i,s*S(t)/i*S(t),l=50+S(t)*100,l)

Mar 17 2019 5:37 AM UTC

}// 90/140

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man idek. Just trying to push something out.

u/Jezza

I did a remix: https://www.dwitter.net/d/12799

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DataMeta

function u(t) {

c=400;for(i=512;i--;)x.fillStyle=R(o=i/2,o,o,.55),
x.fillRect(960+c*S(t+i/22*7.111),540+c*C(t-i),8,8)

Mar 14 2019 3:05 AM UTC

}// 101/140

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u/Xen

love it!
u/UEZ

#Lissajous