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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/katkip
    c.width^=0;for(a=9;a--;)x.fillRect(400+a*100+S(t)*300,400-S(t)*50,50,300),x.fillRect(0,500,2e3,900);x.fillStyle='#fff';for(b=9;b--;)x.fillRect(400+b*100+S(t)*300,500,50,100-S(t)*50);

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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)