using the double-arrow operator (`-->>`… by f8f82804

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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f8f82804

remix of d/9687 by u/f8f82804

function u(t) {

c.width=640;with(x)for(i=17;j=i^i-->>1;stroke())a=_=>j&_?-1:1,lineTo(320+320*S(b=t+Math.atan2(a(1),a(4)))/(Z=3+C(b)),180+224*a(2)/Z)

Oct 10 2018 9:58 PM UTC

}// 132/140

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using the double-arrow operator (-->>) to generate Gray code and visit vertices of a #cube in order -- #d3 #perspective

u/yonatan

you could use the straight-leg-kick operator (--/) and save a char
u/f8f82804

I figured that the community would appreciate seeing the counterpart of the more common single arrow -->
u/magna

When I'm not sure what I'm doing, I use the wiggly arrow operator <~~
u/f8f82804

#wireframe


      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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