createCanvas(600, 600);

}

​

function draw() {

​

  background(60, 210, 10);

​

   for (let i = 0; i < width; i = i + 1) {

  //^same as i++

   //print(i); to show on Console

       const offsetx = frameCount/25;

     const r = map(sin(i/40), -1, 1, 45, 255);

     const g = map(sin(i/220), -1, 1, 80, 255);

     const b = map(sin(i/250), -1, 1, 0, 255);

     const x = i

     const amplitude = 100;

       offsetY = amplitude*sin(i/50+offsetx);

     const y = height/2 + offsetY;

     const d = 150

     fill (r,g,b);

     noStroke ();

  circle (x, y, d)

  }

  {

  }

}