Happy Diwali! by joeytwiddle

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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joeytwiddle

function u(t) {

r=800/t,p=9+t*t&9,s=540
x.fillStyle=`hsl(${s*t},99%,50%`
for(i=p*s;i--;)A=i/p/s,a=r+6*A,R=r*S(3*i/s),x.fillRect(960+R*S(a),s+R*C(a),9,9)

Oct 18 2017 8:01 AM UTC

}// 136/140

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Happy Diwali!

u/joeytwiddle

For 2 - 9 petals: p=2+(t*t&7)
u/joeytwiddle

I was trying to build a #rangoli but in 140 chars I could only fit this hot mess


      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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