nuclear@0: #ifndef COMP_H_
nuclear@0: #define COMP_H_
nuclear@0: 
nuclear@1: #include <string>
nuclear@0: 
nuclear@6: #ifdef NDEBUG
nuclear@6: #define COCAST(type, x)	((type*)x)
nuclear@6: #else
nuclear@6: #define COCAST(type, x)	dynamic_cast<type*>(x)
nuclear@6: #endif
nuclear@6: 
nuclear@8: // for the second arg of the various gobj_co_whatever() functions
nuclear@8: #define COGET_NOFAIL	true
nuclear@8: #define COGET_FAIL		false
nuclear@8: 
nuclear@6: class GObject;
nuclear@1: 
nuclear@0: class Component {
nuclear@1: protected:
nuclear@2: 	const char *name;
nuclear@6: 	GObject *gobj;
nuclear@6: 
nuclear@6: 	/* attach/detach to a particular GObject.
nuclear@6: 	 * This is only called from GObject::add_component and
nuclear@6: 	 * GObject::remove_component respectively
nuclear@6: 	 */
nuclear@6: 	virtual void attach(GObject *gobj);
nuclear@6: 	virtual void detach();
nuclear@6: 
nuclear@6: 	/* Returns an array of component names which depend on this and
nuclear@6: 	 * must not be updated first if both exist in the same object.
nuclear@6: 	 * Terminated by a null pointer.
nuclear@6: 	 */
nuclear@6: 	virtual const char **update_before() const;
nuclear@1: 
nuclear@0: public:
nuclear@2: 	Component();
nuclear@2: 	virtual ~Component();
nuclear@1: 
nuclear@1: 	const char *get_name() const;
nuclear@8: 	GObject *get_object() const;
nuclear@1: 
nuclear@6: 	virtual void update(float dt);
nuclear@6: 	virtual void draw() const;
nuclear@1: 
nuclear@6: 	friend class GObject;
nuclear@1: };
nuclear@1: 
nuclear@2: void register_component(const char *name, Component *(*cons_func)());
nuclear@2: Component *create_component(const char *name);
nuclear@0: 
nuclear@0: #endif	// COMP_H_