class Ring {
  float diameter; // Diameter of the ring
  boolean on = false; // Turns the display on and off
  color myColor;
  int newHue = 244;
  int opac = 255;
  
  Ring(){
   
  }
  
  void start() {
    on = true;
    diameter = 10;
  }
  
  void grow() {
    if (on == true) {
      diameter += 1;
      if (diameter > 300) {
        diameter = 10.0;
        on = false;
      }
    }
  }
  void display(int xpos, int ypos) {
   
    if (on == true) {
      noFill();
      strokeWeight(2);
      stroke(255, 181, 31, opac);
      ellipse(xpos, ypos, diameter, diameter);
      opac = int(map(diameter, 0, 300, 150, 0));
      
      this.grow();
    }
  }
}