noise and distance ()

void setup () {
  size (500, 500);
}


void draw () {

  background (0);

  float x = 0;
  float y = 0;
  float spacing = 20;

  noStroke ();

  float d = dist(width/2, height/2, mouseX, mouseY);
  float maxDist = dist(0, 0, width/2, height/2);

  colorMode(HSB);
  for (x = 0; x < width; x = x + spacing) {
    for (y = 0; y < height; y = y + spacing) {
      fill (random(d,255), 0, random(d,255));
      // fill (random(mouseX/2,250));
      rect (x, y, spacing, spacing);
    }
  }
}


//what about making this grid but adjusting the colors based on where you move the mouse
//use distance () function -- takes 4 arguments: x,y of one point and x,y of another point and it gives you the distance