source/game/entity.cpp

   1 #include "entity.h"
   2 #include "component.h"
   3 #include "root.h"
   4 #include "transform.h"
   5
   6 using namespace std;
   7
   8 namespace Msp::Game {
   9
  10 Entity::Entity(Handle<Entity> p, TransformTag):
  11         parent(p)
  12 { }
  13
  14 Entity::Entity(Handle<Entity> p, const TransformValues &tv):
  15         parent(p),
  16         transform(*this)
  17 {
  18         transform->set_values(tv);
  19 }
  20
  21 // Hide ~Owned<Transform> from the header
  22 Entity::~Entity()
  23 { }
  24
  25 void Entity::add_component(Handle<Component> comp)
  26 {
  27         if(comp->get_entity().get()!=this)
  28                 throw hierarchy_error();
  29
  30         components.push_back(comp);
  31 }
  32
  33 void Entity::remove_component(Handle<Component> comp)
  34 {
  35         erase(components, comp);
  36 }
  37
  38 void Entity::add_child(Handle<Entity> child)
  39 {
  40         if(child->get_parent().get()!=this)
  41                 throw hierarchy_error();
  42
  43         children.push_back(child);
  44 }
  45
  46 void Entity::remove_child(Handle<Entity> child)
  47 {
  48         erase(children, child);
  49 }
  50
  51 Stage &Entity::get_stage()
  52 {
  53         Handle<Entity> root = get_root();
  54         return dynamic_cast<Root &>(*root).get_stage();
  55 }
  56
  57 } // namespace Msp::Game