How do I get rid of the lag? by Leodude123

function u(t) {

c.width=1920 // clear the canvas
for(i=0;i<9;i++)
x.fillRect(400+i*100+S(t)*300,400,50,200) // draw 50x200 rects

} // 122/140

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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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Leodude123

function u(t) {

c.width=1920
var i=1
//while(true)
{
x.fillStyle = R(188,225*S(t),11,1)
x.fillRect(400+i*100+S(t)*300,400,500,500) 
i++
}

Dec 24 2019 11:40 PM UTC

}// 121/140

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How do I get rid of the lag?

u/katkip

You don't need permanent loops. That will timeout the frame. u(t) is already calling every 1/60 seconds
u/joeytwiddle

That's right. The website is already doing something like while(true) for you (actually requestAnimationFrame())
u/Leodude123

Oh


      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)

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