StateMgr.h

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#pragma once
 
#include <state/StateMethod.h>
 
#define STATE_MGR_BASE_BODY(CLASS, METHOD)
    public:
        CLASS(T& obj, const StateID& state_id)
            : mFactory(obj)
            , mMethod(mFactory, state_id)
        {
        }
 
        virtual ~CLASS()
        {
        }
 
        void executeState()
        {
            mMethod.executeStateMethod();
        }
 
        void changeState(const StateID& state_id)
        {
            mMethod.changeStateMethod(state_id);
        }
 
        IState* getState() const
        {
            return mMethod.getState();
        }
 
        const StateID* getNewStateID() const
        {
            return mMethod.getNewStateID();
        }
 
        const StateID* getStateID() const
        {
            return mMethod.getStateID();
        }
 
        const StateID* getOldStateID() const
        {
            return mMethod.getOldStateID();
        }
 
    protected:
        Factory<T>  mFactory;
        METHOD      mMethod;
 
template <typename T, template <typename FactoryT> class Factory>
class StateMgr
{
    STATE_MGR_BASE_BODY(StateMgr, StateMethod)
};