I've got a simple class which makes circles and lets them float (based on one of the examples online). When clicked on a circle, I want to start a function but I just can't seem to get the hitarea consistent. Sometimes it returns values, sometimes it doesn't. Any suggestions? How can I fix this? Here is some test code. When a hit is performed, the movement should stop and you should get some feedback in the console:

import java.util.ArrayList;

// list that holds circles
ArrayList circles;
// number of circles to create initially
int circleCount = 5;
// max and min size of circles2
float maxSize = 30;
float minSize = 20;
// max speed for circles
float speed = 0.4;
float easing = 0.05;
float targetX, targetY;
boolean check = false;

void setup() {
 size(1000, 700);
 background(255);
 noStroke();
 smooth();

 // fill the circles list with circle objects
 circles = new ArrayList();
 for (int i=0; i<circleCount; i++) {
   // Orange
   color c = color( 255, 128, 0, 150);
   // add the circle to circles list
   circles.add(new Circle( 7, 7, 15, c));
 }
}

void draw() {
 background(255);

 // loop through the circle objects in circles list
 for (int i=0; i<circles.size(); i++) {
   Circle circle = (Circle) circles.get(i);
   // move circles
   if(check == false){
   circle.move();
   }else{
     println("stop movement");
   }
   // draw circles
   circle.display();
 }
 
}


class Circle {
 // x and y position, radius, x and y velocities
float x, y, r, vx, vy;

 // circle color
 color c;

 Circle(float _x, float _y, float _r, color _c) {
   x = _x;  
   y = _y;  
   r = _r;  
   c = _c;
   vx = random(-speed, speed);
   vy = random(-speed, speed);

 }

 // draw circle
 void display() {
   fill(c);
   ellipse(x, y, r*2, r*2);
 }

 // move circle
 void move() {
   // bounce against the sides
   if (x - r < 0) {
     x = r + 1;
     vx *= -1;
   }  
   else if (x + r > width) {
     x = width - r - 1;
     vx *= -1;
   }
   if (y - r < 0) {
     y = r + 1;
     vy *= -1;
   }  
   else if (y + r > height) {
     y = height - r - 1;
     vy *= -1;
   }
 
   // add velocities to position
   x += vx;
   y += vy;
   
  if (mousePressed) {
  if ((mouseX > x && mouseX < (x + (r*3))) && (mouseY > x && mouseY < (y + (r*3)))) {
  check = true;
  println("This is x " + x + " This is y" + y);

  }
 }
 
 }
}