import traer.physics.*;

ParticleSystem physics;
int G = 1000;     // strength of repulsion
float k = 0.05;   // spring constant
float damp = 0.1; // spring damping
float rest = 50;  // spring rest length

Graph g;

void setup()
{
  size(400,300);
  smooth();
  noStroke(); 
  textFont(loadFont("David-Bold-24.vlw"));
  
  physics = new ParticleSystem(0,0.1);

  g = new Graph();
  readPajek(g,"friends.txt");
  g.model(physics,G,k,damp,rest);
}

void draw()
{
  // Display
  background(255);
  g.mouseOver();
  g.draw();

  // Update  
  physics.tick();
  g.update();
}

void mousePressed()
{
  g.pressed();
}

void mouseDragged()
{
  g.dragged();
}

// START NO NOTES
// code used to capture screenshots
void keyReleased() {
  if(key == '`' && !online) save("sketch.png");
}