Manager.h

///
/// The base manager
///

#ifndef __MANAGER_H__
#define __MANAGER_H__

#include "ObjectList.h"
#include "Event.h"
#include "SceneGraph.h"                   // For MAX_LEVEL

#define MAX_EVENTS 100                    ///< Max number of different events.

class Manager {

 protected:
  string event[MAX_LEVEL+1][MAX_EVENTS];        ///< Names of events for lists.
  ObjectList obj_list[MAX_LEVEL+1][MAX_EVENTS]; ///< Objects in event lists.
  int event_list_count[MAX_LEVEL+1];            ///< Number of event lists.
  bool is_started;                              ///< True id startUp() success.

  /// Check if event is allowed by Manager.
  /// If allowed, return true else false.
  virtual bool isValid(string event_name);
  
 public:
  Manager();
  virtual ~Manager();
  
  /// Send event to all interested objects.
  void onEvent(Event *p_event);

  /// Indicate interest in event.
  /// Return 0 if ok, else -1.
  /// Note, no check is made to see if GameObject is already registered.
  int registerInterest(Object *p_go, string event_name);

  /// Indicate no more interest in event. 
  /// Return 0 if ok, else -1.
  int unregisterInterest(Object *p_go, string event_name);

  /// Startup the Manager. 
  /// Return 0 if ok, else negative number.
  virtual int startUp();

  /// Shutdown the Manager.  
  virtual void shutDown();

  /// Return status of is_started (true when startUp() was successful).
  bool isStarted();

};

#endif /// __MANAGER_H__