Two interesting functions. T(C(x)) in p… by FireFly

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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FireFly

function u(t) {

f = (c, y, s) => x.fillRect(t*120, 540 + y*120, s, s, x.fillStyle = c)
f('#999', 0, 2)
f('#F00', S(T(S(T(S(t))))), 4)
f('#00F', T(C(t)), 4)

Mar 1 2017 3:02 PM UTC

}// 139/140

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Two interesting functions. T(C(x)) in particular looks a lot like a rounded triangle wave, which is pretty handy… mostly posting this as a meta-dweet/for reference. :)

u/sigveseb

perfect stuff for putting a community wiki!


      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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