#include <algorithm>

using namespace std;

#include "entity.h"

void box::add (const box &o)
{
  a.x = min (a.x, o.a.x);
  a.y = min (a.y, o.a.y);
  a.z = min (a.z, o.a.z);
  b.x = max (b.x, o.b.x);
  b.y = max (b.y, o.b.y);
  b.z = max (b.z, o.b.z);
}

void entity_base::update_bbox ()
{
  if (parent)
    parent->update_bbox ();
}

void entity_base::hide ()
{
  for (vector<octant *>::iterator i = o.end (); i-- != o.begin (); )
    (*i)->remove (this);

  o.clear ();
}

void entity_filter::update_bbox ()
{
  bbox = e->bbox;
  entity_base::update_bbox ();
}

void entity_filter::show (const sector &sec)
{
  e->show (sec);
}

void entity_filter::draw ()
{
  e->draw ();
}

entity_filter::~entity_filter ()
{
  delete e;
}

void entity::show (const sector &sec)
{
  e->show (this->sec);
}

void entity::draw ()
{
  //TODO setup matrix etc.
  e->draw ();
}

void entity_container::update_bbox ()
{
  bbox.reset ();

  for (iterator i = end (); i-- != begin (); )
    {
      (*i)->update_bbox ();
      bbox.add ((*i)->bbox);
    }
}

void entity_container::show (const sector &sec)
{
  for (iterator i = end (); i-- != begin (); )
    (*i)->show (sec);
}

void entity_container::draw ()
{
  for (iterator i = end (); i-- != begin (); )
    (*i)->draw ();
}

entity_container::~entity_container ()
{
  hide ();

  for (iterator i = end (); i-- != begin (); )
    delete *i;
 
  clear ();
}