/////////////////////////////////////////////////////////////////

class agents
{
  float px,py,pz,vx,vy,vz,cc;
  agents ()
  {
    px = random(200)-100;
    py = random(200)-100;
    pz = random(200)-100;
    vx = random(12)-6;
    vy = random(12)-6;
    vz = random(12)-6;
  }
  void display()
  {
    translate(px,py,pz);
    float c = dist (0,0,0, vx,vy,vz) /6 + cc;
    fill(55*c,255*c,170*c,255);
    noStroke();
    //sphere(15);
    box(10);
    stroke(55,255,155);
    line(0,0,0, -vx*5,-vy*5,-vz*5);
  }
  void move()
  {
    px+=vx;
    py+=vy;
    pz+=vz;
  }
  void changebeh1()
  {
    vx-= px/5000;
    vy-= py/5000;
    vz-= pz/5000;
  }
};