finally got what i originally wanted /d… by doof

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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doof

remix of d/3899 by u/doof

function u(t) {

c.width^=0
x.beginPath(x.translate(960,540))
for(i=t/Math.PI/2;i-->-1;x.rotate(t),x.arc(S(t)*200,0,300,0,7))x.lineTo(0,0);
x.fill('evenodd')

Dec 31 2017 6:52 AM UTC

}// 140/140

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finally got what i originally wanted d/3899 to be -- the lineTo(0,0) takes care of the evenodd artifacts, and the addition of more circles is timed with the contractions. i'll stop with the circles now, i promise. :P


      u(t) is called 60 times per second.
      t: elapsed time in seconds.
      c: A 1920x1080 canvas.
      x: A 2D context for that canvas.
      S: Math.sin
      C: Math.cos
      T: Math.tan
      R: Generates rgba-strings, ex.: R(255, 255, 255, 0.5)

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