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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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  • u/PotatoImaginator
    c.width^=0;with(x)for(i=-(a=256);i<a;i++)beginPath(fill()),fillStyle=R(a,128*(1+(.5-i/512)**.4)),arc(960+3*i*S(Math.PI/4*S(t)),800-3*i*i/512+i,150*(1-(i/a)**6),0,7)

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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)