MaxLink link = new MaxLink(this, "scatter"); // ** added for MaxLink

Mover[] movers = new Mover[2];

float x_report[]= new float[2];   
float y_report[] = new float[2];  

void setup() {
  size(640,360);
  for(int i = 0; i < movers.length; i++) {
    movers[i]=new Mover(random(1,4),random(width),0); 
  }
}
 

void draw() {
  background(255);

  PVector wind = new PVector(0.001,0);
  PVector gravity = new PVector(0,0.1);
  
  for (int i =0; i < movers.length; i++){
  
    float c = 0.01; 
    PVector friction = movers[i].velocity.get(); 
    friction.mult(-1); 
    friction.normalize(); 
    friction.mult(c); 
    
  
 movers[i].applyForce(friction); 
 movers[i].applyForce(wind);
 movers[i].applyForce(gravity);
 
 movers[i].update(); 
 movers[i].display(); 
 movers[i].checkEdges(); 
 
  x_report[i] = movers[i].location.x;  //this is where i'm trying to send the outputs as 
                                        // listed coordinates to max
   y_report[i] = movers[i].location.y;  
 
 
 link.output(0,x_report[i]); 
 link.output(1,y_report[i]); 
 println(y_report[i]); 
 }
  
}

class Mover {

  PVector location;
  PVector velocity;
  PVector acceleration;
  float mass;

  Mover(float m, float x, float y) {
    
    mass = m;
    location = new PVector(x,random(height/2)); 
    velocity = new PVector(0,0);
    acceleration = new PVector(0,0);
    
  }
  
  void applyForce(PVector force) {
    PVector f = PVector.div(force,mass);
    acceleration.add(f);
  }
  
  void update() {
    velocity.add(acceleration);
    location.add(velocity);
    acceleration.mult(0);
  }

  void display() {
    stroke(0);
    strokeWeight(2);
    fill(127);
    ellipse(location.x,location.y,mass*16,mass*16);
  }

  void checkEdges() {

    if (location.x > width) {
      location.x = width;
      velocity.x *= -1;
    } else if (location.x < 0) {
      velocity.x *= -1;
      location.x = 0;
    }

    if (location.y > height) {
      velocity.y *= -1;
      location.y = height;
    }

  }

}