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function u(t) {
} //
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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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remix of d/13852 by u/magna

function u(t) {

}//
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  • u/magna
    Uncompressed: c.width|=f=b=>b?'clearRect':'fillRect';s=S(t);Z=950*s**4+50;u=C(t)*Z;x[f(u>0)](0,0,2e3,2e3);x.transform(u,z=s*Z,-z,u,960,540);for(i=18;i--;)x[f(i&1)](i-9,-2,1,4)
  • u/magna
    Golfed down to 157: w=c.width|=f=b=>b>0?'clearRect':'fillRect';s=S(t);Z=950*s**4+50;x[f(u=C(t)*Z)](0,0,w,w);x.transform(u,z=s*Z,-z,u,960,540);for(i=18;i--;)x[f(i&1)](i-9,-2,1,4)
  • u/magna
    #perfectloop

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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)