Dweets by u/DirtyDan

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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DirtyDan

function u(t) {

q=540
c.width+=0
for(i=0;i++<q;)b=i%2==0?C(t*2):S(t),
x.lineTo(960+b*q*C(a=i/q*44/7+b),q+b*q*S(a+b))
x.stroke()

Mar 13 2018 2:21 AM UTC

}// 111/140

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DirtyDan

remix of d/7181 by u/DirtyDan

function u(t) {

p=44/7
a=960
b=535
c.width=a*2
for(i=0;i<a;i+=10)for(j=0;j<b;j+=10)
x.fillRect(a+b*S(i/a*p+S(t))*1/S(j/b*p),b+b*S(j/b*p)*C(i/a*p+C(t)),9,9)

Mar 6 2018 3:28 AM UTC

}// 139/140

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DirtyDan

remix of d/5673 by u/DirtyDan

function u(t) {

p=11/7
a=960
b=535
c.width=a*2
for(i=0;i<a;i+=10)for(j=0;j<b;j+=10)
x.fillRect(a+b*S(i/a*p+S(t))*1/S(j/b*p),b+b*S(j/b*p)*C(i/a*p+C(t)),9,9)

Mar 6 2018 3:27 AM UTC

}// 139/140

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DirtyDan

remix of d/7143 by u/kwin

function u(t) {

p=11/7
d=120
c.width=d*8
x.arc(200,270,d,t*p,t*p+p*4)
for(i=0;i++<560;)x.lineTo(200+i,270+d*S((t+i/d)*p))
x.stroke()

Mar 6 2018 3:07 AM UTC

}// 116/140

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Golfed it a good bit

u/artfarnaa

https://www.youtube.com/watch?v=Q55T6LeTvsA

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DirtyDan

function u(t) {

c.width+=0
t+=T(S(t)+C(t))
for(i=0;i++<240;)a=t*i/480,x.beginPath(),x.ellipse(i*8,540,270*(1+S(a)),270*(1+C(t)),S(a),0,7),x.stroke()

Mar 5 2018 12:33 AM UTC

}// 132/140

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u/joeytwiddle

The struggle is real

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DirtyDan

function u(t) {

p=Math.PI*2
for(c.width+=i=0;i++<500;)x.beginPath(),x.ellipse(960,540,540*i/500,540*Math.abs(S(t)),S(T(C(t/99*p)*p)*i/500*p),0,7),x.stroke()

Feb 28 2018 12:18 AM UTC

}// 140/140

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DirtyDan

function u(t) {

c.width+=0
x.lineWidth=9
for(i=1;i++<8;)x.beginPath(),x.ellipse(960,540,270*(1+S(t*i)),270*(1+C(t)),t*i/5,0,7),x.stroke()

Feb 27 2018 3:38 AM UTC

}// 121/140

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DirtyDan

remix of d/7009 by u/DirtyDan

function u(t) {

c.width+=0
with(x)for(globalCompositeOperation='xor',i=1;i++<50;)beginPath(arc(960+S(a=t*i/11)*230,540+C(a)*230,i%5*60,0,7),fill())

Feb 26 2018 8:40 PM UTC

}// 131/140

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DirtyDan

remix of d/7053 by u/DirtyDan

function u(t) {

with(x)for(i=32;i-->0;)fillStyle=`hsla(${99*t+i*9},100%,50%,.01)`,beginPath(arc(S(t)*960+960+C(t)*i,540,i*(1+S(t)*C(t))*16,0,7),fill())

Feb 23 2018 6:34 AM UTC

}// 135/140

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u/aleamb

nice!
u/DirtyDan

Don't know what I was thinking having "+960+C(t)*i" in the first arc parameter -_- ... 11 extra characters!
u/DirtyDan

nvm, the +960 was necessary, not the "+C(t)*i"... 7 extra characters.
u/Purpzie

This is so beautiful.

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DirtyDan

remix of d/7051 by u/DirtyDan

function u(t) {

with(x)for(i=32;i-->2;)fillStyle=`hsl(${i*t*9},100%,50%)`,lineWidth=i*2,beginPath(arc(960+C(a=t*i/3)*i,540+S(a)*i,i*i/2,0,7),fill(stroke()))

Feb 23 2018 2:34 AM UTC

}// 140/140

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u/aleamb

beautiful!
u/fons

dope
u/zanella

Nice color palette!
u/iverjo

Good colors indeed
u/Xen

love it

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