i'd like to work with the possisions of the boids in the flocking excample in an XML file! is this possible???

here's the file again:

Flock flock;

void setup() {
 size(500,500);
 colorMode(RGB,255,255,255,100);
 flock = new Flock();
 // Add an initial set of boids into the system
 for (int i = 0; i < 50; i++) {
   flock.addBoid(new Boid(new Vector3D(width/2,height/2),2.0f,0.05f));
 }
 smooth();
}

void draw() {

 background(100);
 flock.run();
}

// Add a new boid into the System
void mousePressed() {
 flock.addBoid(new Boid(new Vector3D(mouseX,mouseY),2.0f,0.05f));
}

class Flock {
 ArrayList boids; // An arraylist for all the boids

 Flock() {
   boids = new ArrayList(); // Initialize the arraylist
 }

 void run() {
   for (int i = 0; i < boids.size(); i++) {
     Boid b = (Boid) boids.get(i);  
     b.run(boids);  // Passing the entire list of boids to each boid individually
   }
 }

 void addBoid(Boid b) {
   boids.add(b);
 }

}


class Boid {

 Vector3D loc;
 Vector3D vel;
 Vector3D acc;
 float r;
 float maxforce;    // Maximum steering force
 float maxspeed;    // Maximum speed

 Boid(Vector3D l, float ms, float mf) {
   acc = new Vector3D(0,0);
   vel = new Vector3D(random(-1,1),random(-1,1));
   loc = l.copy();
   r = 2.0f;
   maxspeed = ms;
   maxforce = mf;
 }
 
 void run(ArrayList boids) {
   flock(boids);
   update();
   borders();
   render();
 }

 // We accumulate a new acceleration each time based on three rules
 void flock(ArrayList boids) {
   Vector3D sep = separate(boids);   // Separation
   Vector3D ali = align(boids);      // Alignment
   Vector3D coh = cohesion(boids);   // Cohesion
   // Arbitrarily weight these forces
   sep.mult(2.0f);
   ali.mult(1.0f);
   coh.mult(1.0f);
   // Add the force vectors to acceleration
   acc.add(sep);
   acc.add(ali);
   acc.add(coh);
 }
 
 // Method to update location
 void update() {
   // Update velocity
   vel.add(acc);
   // Limit speed
   vel.limit(maxspeed);
   loc.add(vel);
   // Reset accelertion to 0 each cycle
   acc.setXYZ(0,0,0);
 }

 void seek(Vector3D target) {
   acc.add(steer(target,false));
 }

 void arrive(Vector3D target) {
   acc.add(steer(target,true));
 }



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how do i write the possision and ID of a boid in an XML-file???

thanks everybody! mias