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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and3k5

function u(t) {

c.width^=0
for (i=0;i<360;i+=360/7)
x.arc(950+S(t*2+i*Math.PI/180)*300,530+C(t*2.5+i*Math.PI/180)*300,40,0,9) 
/x.closePath()
x.fill()

Mar 12 2021 12:26 PM UTC

}// 134/140

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spinning

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kian

remix of d/21919 by u/rodrigo.siqueira

function u(t) {

c.style.filter=`invert(`
w=c.width=156
for(var i=4e3;i--;x.fillStyle=R(t%w,i%w,t%w))x.fillRect(X=i%w,Y=30+i/w-T(t-X)^C(t)+(C(t)^9),S(i*X),1)

Mar 13 2021 5:27 AM UTC

}// 140/140

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u/ximavus

I'm in osdev lately and used the magic boot number (0x55aa) in decimal as a ID for dweeter

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kian

remix of d/21929 by u/kian

function u(t) {

i=t*99%256;D=T(t);Z=S(t);d=C(t)
x.fillStyle=R(i/D,i/Z,i/D,C(i)/6)
x.fillRect(99*D,332-Z*256,1,1)
x.drawImage(c,d*D+99,d,2e3+8*d,c.height+42)

Mar 13 2021 5:45 PM UTC

}// 140/140

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pillars

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BackendForth

function u(t) {

c.onmousemove=(e)=>{c.width=1920
for(i=1920;i-=64;)for(j=1080;j-=54;)p=e.x*3.5-i,q=e.y*3.5-j,r=(p*p+q*q)**.5/99,x.fillRect(i-p/r,j-q/r,9,9)}

Mar 10 2021 2:37 AM UTC

}// 140/140

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Mouseover, please!

u/erin

this is gonna b one of my fav dweets i think
u/smtsjhr

good fun!
u/danny@hille.dk

Nice!
u/Xen

nicely!
u/aleamb

#interactive

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magna

remix of d/21905 by u/veubeke

function u(t) {

onmousemove=e=>{R=c.offsetWidth/(c.width|=0);X=e.x/R;Y=e.y/R;for(i=9;i--;)x.fillRect(i*100+X,Y,50,200)}

Mar 12 2021 5:31 AM UTC

}// 103/140

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#default except you need to move it yourself with the mouse, as true to the original as possible. #interactive #mouse

u/veubeke

😂
u/erin

this is so funny

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Xen

remix of d/21891 by u/danny@hille.dk

function u(t) {

for(i=2e3,c.width=w=60;i--;)x.fillRect(X=i%w,Y=i/w,T(Y+t*w^X),.1)

Mar 10 2021 11:10 PM UTC

}// 65/140

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chain again cloudy-texture-ish-thingy

u/danny@hille.dk

Love it!
u/Xen

just my beer level or do i see lots of cats faces?
u/erin

wow!!

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veubeke

function u(t) {

for(i=320;i--;x.fill(P=new Path2D(`M960 540`),P.arc(960,540,15*r**1.2,i*.524,(i+1)*.524)))r=i>>4,x.fillStyle=`hsl(${30*(i%16+t*r)},99%,50%)`

Mar 10 2021 5:05 PM UTC

}// 140/140

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u/magna

Sweet!
u/vovanmozg

👍

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BackendForth

remix of d/6001 by u/BackendForth

function u(t) {

for(c.width|=i=9;i--;)x.save(),x.translate(450+i*99+(t<1?t:1)*300,600),x.rotate(1/(1+9**(-t*9+9+i))),x.fillRect(-50,-200,50,200),x.restore()

Mar 11 2021 3:07 AM UTC

}// 140/140

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u/magna

#default dominos

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kian

remix of d/21905 by u/veubeke

function u(t) {

onmousemove=e=>{for(R=c.offsetWidth/(i=c.width^=0);i-=64;)for(j=1080;j-=54;x.fillRect(i-p/r,j-q*r,9,9))r=Math.hypot(p=e.x/R-i,q=e.y/R-j)/99}

Mar 11 2021 10:48 PM UTC

}// 140/140

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a single star brougt forth

u/kian

#movethatmouse
u/BackendForth

Really enjoying this chain of remixes :)

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Xen

remix of d/20846 by u/ciaccodavide

function u(t) {

for(c.width|=i=399;i--;)x.arc(960+C(t+S(i/37))*i,540+S(t+C(i/37))*i,i,0,i);x.stroke()

Mar 11 2021 10:39 PM UTC

}// 85/140

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QuickPlay & Golf

u/kian

holy moly!