class MovingImage {
  
  PImage img; // image
  int x = 0;  // position
  int y = 0;
  
  // constructor
  MovingImage(PImage img) {
    this.img = img;
  }
  
  // method to display the image on the screen
  void draw() {
    image(img, x, y);
  }
  
  // method to test if the cursor is over the image
  boolean isUnderMouse() {
    if (mouseX < x || mouseX > x + img.width) return false;
    if (mouseY < y || mouseY > y + img.height) return false;
    return true;
  }
} 

void mousePressed() {
  if (myMovingImage.isUnderMouse())
    println("the image was clicked");
}