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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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  • katkip: Electricity. Sadly, #compressed x.globalAlpha=.1;x.fillRect(0,0,2e3,2e3);r=Math.random;f=p=>S(-p/42+t*2)<S(t);for(i=899;i--;){X=r()*1910,Y=r()*1070;if(f(Y/4^X/4))x.clearRect(X,Y,10,10)};

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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)