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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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  • I see that smoke is a trend now so i made smoke particles c.width*=1;t||(s=[]);s.push({v:0,V:Math.random(),x:960,y:900});for(i of s){x.fillStyle="#0003",x.fillRect(i.x,i.y,9,9);i.x+=i.v,i.v+=S(t*t/9+i.V)/99,i.y-=i.V*S(i.x*i.y)+2}

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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)