class Circle {
   float x,y; // for circles
  float r;
  boolean dragging = false; // Is the object being dragged?
  boolean rollover = false; // Is the mouse over the ellipse?
  float dx,dy;

  // constructor
  Circle(float x_, float y_, float r_) {
    x = x_;
    y = y_;
    r = r_;
  }

  // Method to display
  void center_circle() {
    
    // circle in the middle
    ellipseMode(CENTER);
    noStroke(); 
    fill(255);
    ellipse(x, y, 20,20);
  }


  boolean intersect(Component b) {
    float distance = dist(x,y,b.x,b.y);
    if (distance < r + b.r) {
      return true;
    }  else if (distance < 250){
     
      return true;
    }  else {
      return false;
    }
  }
  
      // The methods below are for mouse interaction
  void clicked(int mx, int my) {
    float d = dist(mx,my,x,y);
    if (d < r) {
      dragging = true;
      dx = x-mx;
      dy = y-my;
    }
  }

  void rollover(int mx, int my) {
    float d = dist(mx,my,x,y);
    if (d < r) {
      rollover = true;
    } 
    else {
      rollover = false;
    }
  }

  void stopDragging() {
    dragging = false;
  }

  void drag() {
    if (dragging) {
      x = mouseX + dx;
      y = mouseY + dy;
    }
  }

}