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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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function u(t) {

}//
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  • Undefined: c.width|=0;for(i=n=19;i--;)Y=C(t*3+(i+n)%n),x.fillStyle=R(Y*250),x.fillRect(0+i*99,540+S(t*3+i)*300,99,Y*120) - Golf your code, 110
  • Undefined: 108 if you remove the unnecessary 0+
  • Xen: for(c.width|=i=n=98;i--;x.fillRect(i*n,540+S(t*3+i)*300,n,Y*n))x.fillStyle=R((Y=C(t*3+i+n%n))*250) 98bytes with tiny tweak

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function u(t) {

}//
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  • DeathBoy: Just some interference patterns, a first scribble :)

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