d/6285 by jonathan_b

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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jonathan_b

remix of d/6279 by u/jonathan_b

function u(t) {

for(c.width|=s=i=504;i-=3;x.beginPath())q=S(i)*C(t+i),x.arc(s+s*3*q,s+s/2*S(i),i,0,7),x.lineWidth=i,x.strokeStyle=R(i/q,q*s,i/2),x.stroke()

Jan 21 2018 8:45 AM UTC

}// 139/140

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u/Qwitter

Love this !
u/jonathan_b

thanks!
u/Qwitter

This deserves a couple Dwitcoins: <svg height="40" width="40"><circle cx="10" cy="15" r="9" stroke="#999900" stroke-width="2" fill="#bfbf22" /><text x="7" y="20" fill="#cfcf00">$</text><text x="5" y="20" fill="#eeee00">D</text></svg> <svg height="40" width="40"><circle cx="10" cy="15" r="9" stroke="#999900" stroke-width="2" fill="#bfbf22" /><text x="7" y="20" fill="#cfcf00">$</text><text x="5" y="20" fill="#eeee00">D</text></svg>
u/joeytwiddle

#colors


      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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