Dweets awesomed by u/Niklas

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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visy

function u(t) {

for(i=255;i>0;i--)
z=i+t,ss=(C(t*10.+i)+i*t*.1*S(t*i*.1)),x.fillStyle=R(i,i*2-ss,i*3-ss,0.2),x.fillRect(960+S(z)*ss, 540+C(z)*ss, 5, 5)

Feb 23 2017 1:59 PM UTC

}// 135/140

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Niklas

function u(t) {

o=960,p=540,q=999,c.width|=0;for(var i=0;i<=q;i++)a=i*Math.PI*2/q,v=S(t*i/10),x.lineTo(C(a)*o/2*v+o,S(a+S(a+t))*p/2*v+p);x.stroke();

Feb 23 2017 1:25 PM UTC

}// 132/140

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demoniak

function u(t) {

with(x)fillStyle='#0001',fillRect(0,0,2e3,2e3),font='700 16em sans-serif',fillStyle='#f60',fillText('əthegə',S(t)*540+540,C(t*.9)*400+600)

Feb 23 2017 1:13 PM UTC

}// 138/140

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Works in Firefox and Safari. RGBA hex colors only works in Chrome with chrome://flags/#enable-experimental-web-platform-features

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Flexi23

function u(t) {

n=24;for(i=0;i<3600;i++){X=i%80;Y=i/80;x.fillStyle=R(S(Math.atan2(U=X-40,V=Y-20)*2+16*t-Math.sqrt(U*U+V*V))*256);x.fillRect(X*n,Y*n,n,n);}

Feb 23 2017 12:09 PM UTC

}// 138/140

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Niklas

function u(t) {

cX=960,cY=540,rX=cX/1.5,rY=cY/2,q=512,c.width|=0;for(var i=0;i<=q;i++)a=i*(2*Math.PI/q)+t,x.fillRect(C(a)*rX+cX-2,S(a+i/5.4)*rY+cY-2,4,4);

Feb 23 2017 11:27 AM UTC

}// 138/140

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Niklas

function u(t) {

for(b=960,y=540,v=b/4,w=y/8,q=32,c.width|=0,j=0;j<10;j++)for(i=0;i<q;i++)a=i*(2*Math.PI/q)+t,x.fillRect(C(a)*v+b-2,S(a)*w+20*j+y-98,4,4);

Feb 23 2017 11:03 AM UTC

}// 137/140

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andy

function u(t) {

a=b=>S(t*b)*128+128
x.fillStyle=R(a(1.3),a(3),a(2))
x.fillRect(S(t*3)*960+960,C(t*2.5)*539+539,10,10)
x.drawImage(c,S(t)-2,C(t)-2,1924,1084)

Feb 23 2017 10:30 AM UTC

}// 140/140

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Show more comments…
u/magicmarc

First line as "a=b=>128*(S(t*b)+1)" brings this to 140.
u/andy

Thanks, that's right. Didn't even realize i was over 140 :)
u/lionleaf

Are you seeing over 140 characters? On chrome it says 140/140 at least.
u/andy

weird, yesterday it said 143.
u/michelinux

It's probably because on Windows the new line takes 2 characters ('\n\r'). Use ';' instead of new line and you should have a more consistent behaviour.
u/andy

still weird, i don't have any windows machines.
u/SpecialAgent

the simplicity of that zoom blows my mind, great work!

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aemkei

function u(t) {

c.width^=0;for(i=-30;i<30;i+=0.01+t/2e3)x.fillRect(960+T*C(T=i*40),540+T*S(T),w=4+i*S(t),w)

Feb 23 2017 10:30 AM UTC

}// 91/140

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walsh9

function u(t) {

O=[],Z=z=>R(y=255*S(z/32),y,y+128);for(i=1e4;i--;)d=i%128*15,e=i/128|0,x.fillStyle=Z((S(d/64)+S(e/4)+t)*99),x.fillRect(d,e*16,16,16)

Feb 23 2017 2:55 AM UTC

}// 132/140

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u/donbright

love the color scheme
u/walsh9

whoops left some junk at the beginning. not even using that array.
u/iverjo

Beautiful
u/sigveseb

Very pretty
u/Kalanchoe

Trippy yet so relaxing

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sigveseb

remix of d/406 by u/sigveseb

function u(t) {

for(n=c.width=i=2e3;i--;x.lineTo(1e3+n*X/Z,560+n*U/Z))F=S(i),U=C(i),V=i%5-2,Z=V*C(t)-F*S(t)+12+9*S(t/2),X=V*S(t)+F*C(t);x.stroke() // :D

Feb 22 2017 9:36 PM UTC

}// 136/140

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