I don't think I made it clear what I was trying to do in my previous code. I want to make a class which consists of the ellipse which is controlled by noise as in the code posted below. I also want it to include the if statements for dist so I can have any number of ellipses and for it to work just like the code does below. Any help would be greatly appreciated. I have tried to put it into a class but it either stays static on the screen or I keep getting error messages.

import processing.opengl.*;
float diam = 100;
float a = 0;

void setup() {
  size(1200,700);
  background(0);
  noFill();
}

void draw() {
  background(0);
  float x = noise(a,10) * width;
  float y = noise(a,20) * height;
  float d = dist(x,y,mouseX,mouseY);
      if(d > diam) {
        strokeWeight(1);
    } else {
        strokeWeight(random(7));
    }
      if(d > 100) {
        noFill();
        stroke(0,190,100);
        ellipse(x,y,100-d,100-d);
        noFill();
        noStroke();
    }
   
  stroke(150,255,50);
  ellipse(x,y,diam,diam);
 
  stroke(200,100,255);
  ellipse(mouseX,mouseY,diam,diam);
    a = a + 0.01;
}