GameManager.h


#ifndef GAMEMANAGER_H
#define GAMEMANAGER_H


//------------------------------------------------------------------------
//
//  Name:   GameManager.h
//
//  Desc:   Manages the game states.
//
//  Author: Nikko Bertoa 2010 (nicobertoa@gmail.com)
//
//------------------------------------------------------------------------


//
// Headers
//
#include "ImageManager.hpp"
#include "Fps.h"


// Forward
class State;


class GameManager
{

public:

    GameManager();

    virtual ~GameManager();

    //use these methods to initialize the machine
    void SetCurrentState(State* s) { m_pCurrentState = s; }
    State* CurrentState()const { return m_pCurrentState; }
    void SetGlobalState(State* s) { m_pGlobalState = s; }
    State* GlobalState()const { return m_pGlobalState; }
    void SetPreviousState(State* s) { m_pPreviousState = s; }
    State* PreviousState()const { return m_pPreviousState; }

    void Run();

    void Exit();

    //change to a new state
    void  ChangeState(State* pNewState);

    //change state back to the previous state
    void  RevertToPreviousState() { ChangeState(m_pPreviousState); }

    //returns true if the current state's type is equal to the type of the
    //class passed as a parameter.
    // m_pCurrentState's entity_type == st's entity_type
    bool  IsInState(const State* st)const { return typeid(*m_pCurrentState) == typeid(st); }


private:

    //call this to update the machine
    void  Update();
    void DrawFPS();

    State* m_pCurrentState;

    //a record of the last state the agent was in
    State* m_pPreviousState;

    //this is called every time the FSM is updated
    State* m_pGlobalState;

    sftools::ImageManager m_imgManager;

    sf::RenderWindow m_screen;

    Fps m_fpsManager;
    sf::Font* m_font;
    sf::String* m_fpsText;

    bool m_close;

};


#endif // GAMEMANAGER_H