Dweets awesomed by u/BirdsTweetCodersDweet

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.

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kwin

function u(t) {

p=Math.PI/2;c.width=960
a=200;b=270;d=120
x.ellipse(a,b,d,d,t*p,0,4*p)
for(i=0;i<560;i++)
x.lineTo(a+i,b+d*S((t+i/d)*p))
x.stroke();

Mar 3 2018 1:21 PM UTC

}// 132/140

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BirdsTweetCodersDweet

function u(t) {

c.width=a=1000
c.style.background=`hsl(${t*a},50%,50%)`
for(i=0;i<9;i++)for(j=0;j<27;j++)
x.fillRect(i*100+S(t**j)*1000,0,50,2000)

Feb 25 2018 7:46 PM UTC

}// 130/140

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Light show v2 :D

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BirdsTweetCodersDweet

function u(t) {

c.width=500
for(i=0;i<8;i++)
x.fillRect(S(t+i)*250+200,0,150,5e3)

Feb 24 2018 11:13 AM UTC

}// 65/140

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Light show :D

u/BirdsTweetCodersDweet

Works well with music...

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BirdsTweetCodersDweet

function u(t) {

x.globalAlpha=.5
x.fillRect(Math.random()*1920, Math.random()*1080, 5, 5)
x.drawImage(c,-5,-2,1980,1085)
x.clearRect(0,0,300,1080)

Feb 22 2018 8:25 PM UTC

}// 130/140

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Heh... cool

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BirdsTweetCodersDweet

function u(t) {

c.style.border=~~(t*t)+'px solid black';

Feb 22 2018 2:47 PM UTC

}// 40/140

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Claustrophobia

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u/BirdsTweetCodersDweet

Also, why are the edges cut off?
u/BuRRak

This is weird
u/hg

Edges are cut because the iframe doesn't take up the whole div.
u/BirdsTweetCodersDweet

Well that sucks...
u/BirdsTweetCodersDweet

hmm, stuff like 0.2px solid black seems to work for all edges though
u/BirdsTweetCodersDweet

0.4 gets cut off on the right, and at 0.5 our problems start -- weird... :/

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BirdsTweetCodersDweet

function u(t) {

c.width=w=1920;m=150;for(i=0;i++<m;)k=C(t*2+i/50)*255,x.fillStyle=R(255-k/2,0,k),x.fillRect(i/m*w,w/4+100*S(i/10+t/2),10,m*C(i+t))

Feb 22 2018 2:39 PM UTC

}// 130/140

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Golfed even more :D

u/snydej

Some more golfing: w=c.width+=0;for(i=m=150;i--;x.fillRect(i/m*w,w/4+100*S(i/10+t/2),10,m*C(i+t)))k=C(t*2+i/50)*255,x.fillStyle=R(255-k/2,0,k)

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BirdsTweetCodersDweet

function u(t) {

t?0:(c.width=5e3,c.height=5e3);X=C(t)*2.4e3+2.4e3;Y=S(t*2)*540+540;x.fillStyle=`hsl(${t*X+Y},50%,50%)`;x.fillRect(X,Y,50,50)
throw X

Feb 18 2018 12:28 AM UTC

}// 132/140

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And a mega 8-loop :D

u/sigveseb

Why the throw X?
u/BirdsTweetCodersDweet

Debugging :D... Forgot to remove it, apparently :P

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BirdsTweetCodersDweet

remix of d/6980 by u/BirdsTweetCodersDweet

function u(t) {

with(x)for(c.width|=i=37,globalCompositeOperation='xor';i--;beginPath(fill(arc(960+S(n=i*(C(t*.5)*2+.7))*n-C(n),540+S(n)-C(n)*n,i*i,0,7))))x

Feb 18 2018 12:26 AM UTC

}// 140/140

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Hah, another cool one!

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BirdsTweetCodersDweet

remix of d/6978 by u/akm

function u(t) {

with(x)for(c.width|=i=37,globalCompositeOperation='xor';i--;beginPath(fill(arc(960+S(n=i*(C(t*2)*.5+7))*n-C(n),540+S(n)-C(n)*n,i*i,0,7))))x

Feb 18 2018 12:22 AM UTC

}// 139/140

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I tried to change your n value... Ended up doing a thing :D

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BirdsTweetCodersDweet

function u(t) {

t?0:c.width=50;X=C(t*.5)*20+20;Y=S(t)*7.5+10;x.fillStyle=`hsl(${t*X+Y},50%,50%)`;x.fillRect(X,Y,10,10)

Feb 18 2018 12:13 AM UTC

}// 102/140

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Mini 8-loop

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