Exemple #1
0
/**
 * \brief Get the epsilon to apply when the item is aligned.
 */
bear::universe::coordinate_type
bear::universe::physical_item::get_align_epsilon() const
{
  if ( has_owner() )
    return get_owner().get_position_epsilon();
  else
    return 0;
} // physical_item::get_align_epsilon()
Exemple #2
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/**
 * \brief Test if the item is in a given environment.
 * \param e The considered environment.
 */
bool bear::universe::physical_item::is_in_environment
(const universe::environment_type e) const
{
  bool result = false;

  if ( has_owner() )
    {
      std::set<universe::environment_type> environments;
      get_owner().get_environments(get_bounding_box(), environments);
      result = ( environments.find(e) != environments.end());
    }

  return result;
} // physical_item::is_in_environment()
Exemple #3
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/**
 * \brief Test if the item is only in a given environment.
 * \param e The considered environment.
 */
bool bear::universe::physical_item::is_only_in_environment
(const universe::environment_type e) const
{
  bool result = false;

  if ( has_owner() )
    {
      std::set<universe::environment_type> environments;
      get_owner().get_environments(get_bounding_box(), environments);
      if ( environments.size() == 1 )
        result = ( *(environments.begin()) == e );
    }

  return result;
} // physical_item::is_only_in_environment()
Exemple #4
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/**
 * \brief Calculate the new acceleration of the item.
 */
void bear::universe::physical_item::adjust_cinetic()
{
  speed_type s( get_speed() );

  if ( has_owner() )
    {
      const speed_type eps(get_owner().get_speed_epsilon());

      if ( (s.x < eps.x) && (s.x > -eps.x) )
        s.x = 0;
      if ( (s.y < eps.y) && (s.y > -eps.y) )
        s.y = 0;

      set_speed(s);

      if ( (get_angular_speed() < get_owner().get_angular_speed_epsilon()) &&
           (get_angular_speed() > -get_owner().get_angular_speed_epsilon()) )
        set_angular_speed(0);
    }
} // physical_item::adjust_cinetic()
Exemple #5
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bool is_yokeable(const ObjectID& id, const ObjectManager *objectManager)
{
	return !has_owner(id, objectManager) && objectManager->get_component<ICmpYoke>(id) != NULL;
}
Exemple #6
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bool is_renderable(const ObjectID& id, const ObjectManager *objectManager)
{
	return !has_owner(id, objectManager) && objectManager->get_component<ICmpRender>(id) != NULL;
}
Exemple #7
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/**
 * \brief Get the world that owns this item.
 * \pre has_owner() == true
 */
bear::universe::world& bear::universe::physical_item::get_owner() const
{
  CLAW_PRECOND( has_owner() );
  return *m_owner;
} // physical_item::get_owner()
Exemple #8
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/**
 * \brief Tell this item which world owns him.
 * \param The world that owns this item.
 */
void bear::universe::physical_item::set_owner(world& owner)
{
  CLAW_PRECOND( !has_owner() );
  m_owner = &owner;
} // physical_item::set_owner()