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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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  • marc8: c.width|=j=10;k=6.28;z=999;r=z*2**(2.8+t%2.8);for(;j--;){x.beginPath();for(i=0;i<2;i+=.4)x.lineTo(z+r*S(q=i*k-t),z/2+r*C(q));x.fill('evenodd');r*=-.38}

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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)