I am writing a small visualisation that displays nodes for videos within a system.  Below, I have a Video node class that is used to display the data.  The problem I am having is that for each video I want to have mouse events, so they can be dragged around a bit and clicked on for more information.

At the moment, with the code below I seem to be getting a weird result that no matter where I click on the screen, I get the mousePressed event on every video, rather than only working when I click on a video object and only get it's results.

Can anyone help at all?

Thanks!

Code:

class Video implements MouseListener {
  
  int id;
  PVector position;
  PVector acceleration;
  float radius;
  float diameter;
  String title;
  color off_color;
  color on_color;
  boolean selected;
  boolean dragging;
  
  public Video(int new_id, PVector new_position, PVector new_acceleration,
              float new_radius, String new_title)
  {
    addMouseListener(this);
    id = new_id;
    position = new_position;
    acceleration = new_acceleration;
    radius = new_radius;
    title = new_title;
    
    diameter = radius / 2;
    off_color = color(int(random(255)), int(random(255)), int(random(255)));
    on_color = color(int(random(255)), int(random(255)), int(random(255)));
    
    selected = false;
    dragging = false;
  }
  
  public void mouseDragged(){
     
  }
  
  public void mouseReleased(MouseEvent e){
  
  }
  
  public void mousePressed(MouseEvent e) {
    print (e);
    print("Video " + id + "\n");
  }
  
  public void mouseClicked(MouseEvent e) {
    
  }
  
  public void mouseEntered(MouseEvent e) {
    
  }
  
  public void mouseExited(MouseEvent e) {
    
  }
  
  public void draw()
  {
    // If the cursor is within 2x the radius of current circle...
    if( dist(position.x, position.y, mouseX, mouseY) < radius ) {
      // Change fill color to green.
      fill(on_color, 100);
      // Remember user has circle "selected"  
      selected = true;
      
      // If user has mouse down and is moving...
      if(dragging){
        // Move circle to circle position
        position.x = mouseX;
        position.y = mouseY;
      }
     
    } else {
      // Keep fill color blue
      fill(off_color, 100);
      // User has nothing "selected"
      selected = false;
    }
    
    // Draw circle
    ellipse(position.x, position.y, radius, radius);
    
    // Move circle
    position.x += acceleration.x;
    position.y += acceleration.y;
    
    /* Wrap edges of canvas so circles leave the top
       and re-enter the bottom, etc...*/
    if( position.x < - diameter ){ position.x = width + diameter;  } 
    if( position.x > width + diameter ){ position.x -= diameter;       }
    if( position.y < 0 - diameter     ){ position.y = height  + diameter; }
    if( position.y > height + diameter){ position.y -= diameter;       }
    
    // If current circle is selected...
    if(selected){
      // Set fill color of center dot to white..
      fill(255, 255, 255, 255);
      // ..and set stroke color of line to green.
      stroke(128, 255 ,0, 100);
    } else {            
      // otherwise set center dot color to black.. 
      fill(0, 0, 0, 255);
      // and set line color to turquoise.
      stroke(64, 128 ,128, 255);
    }
    
    // Turn off stroke/border
    noStroke();      
    
    // Draw dot in center of circle
    ellipse(position.x, position.y, 10, 10); 
  }
} 

At the moment, I am just displaying these randomly for testing, and I have a class that creates the field, and then my main code that displays it:
Code:

class VideoField {
  Video videos[];
  int count;
  
  public VideoField( int count)
  {
    this.count = count;
    videos = new Video[count];
    for (int i = 0; i < count; i++) {
      
      if (i == 1) {
        print ("Creating Central Video");
        videos[i] = new Video(i,
                            new PVector((width/2), (height/2)),
                            new PVector(0, 0),
                            30.0,
                            "Video " + i);
        
      } else {
        videos[i] = new Video(i,
                            new PVector(random(width), random(height)),
                            new PVector(random(-1, 1), random(-1, 1)),
                            30.0,
                            "Video " + i);      
      }
    } 
  }
  
  public void draw() {
    for (int i = 0; i < videos.length ; i++) {
      videos[i].draw();
    }
  }
  
} 

Code:

VideoField videofield;

void setup() {
  size(640,480);
  videofield = new VideoField( 10 );
  frameRate( 25 );
  smooth();
}
void draw() {
  background(255);
  videofield.draw();
}