AIWrapper.h

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//    Copyright (C) 2004-2011 Dylan Blair
//
//    email: dblair@alumni.cs.utexas.edu
//
//    This library is free software; you can redistribute it and/or
//    modify it under the terms of the GNU Lesser General Public
//    License as published by the Free Software Foundation; either
//    version 2.1 of the License, or (at your option) any later version.
//
//    This library is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
//    Lesser General Public License for more details.
//
//    You should have received a copy of the GNU Lesser General Public
//    License along with this library; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#ifndef AIWRAPPER_H
#define AIWRAPPER_H

#include "AIManager.h"

#include <stack>

namespace OpenSkyNet {
    namespace AI {
        class Wrapper {
        protected:
            struct FSMWrapper {
                FSM*    _fSM;
                State*  _state;
                float   _timeStampStateChange;
                FSM_IDS _index;
                bool    _isEnabled;

                FSMWrapper();
            };

            FSMWrapper              _fSMs[FSM_MAX];
            std::stack<FSMWrapper*> _stackFSMs;
            FSM_IDS                 _currFSMIndex;
            KB*                     _kB;
            bool                    _wasKBCreatedHere;
            Logic*                  _logic;
        public:
            Wrapper();


            virtual void init(LOGIC_IDS logicId_, FSM_IDS fSMId_, State* state_);
            virtual void init(LOGIC_IDS logicId_, FSM_IDS fSMId_, State* state_, KB* kB_);

            virtual bool performLogic(bool includeGlobalKB_=false); 

            virtual const State* getCurrentState() const { return _fSMs[_currFSMIndex]._state; }

            void enableSwitchingToFSM(FSM_IDS fSMId_, State* state_=0);

            inline void disableSwitchingToFSM(FSM_IDS fSMId_) { _fSMs[fSMId_]._isEnabled = false; }

            bool setFSM(FSM_IDS fSMId_, State* state_=0, bool autoEnable_=true); //< returns true if successful, false otherwise

            FSM_IDS getFSM() const { return _currFSMIndex; }

            bool pushFSM(FSM_IDS fSMId_, State* state_=0, bool autoEnable_=true); //< returns true if successful, false otherwise

            bool popFSM(); //< returns true if the current FSM changes, false otherwise

            bool setLogic(LOGIC_IDS logicId_); //< returns true if successful, false otherwise

            LOGIC_IDS getCurrentLogicId() { return _logic->getLogicId(); }

            virtual KB* getKB() { return _kB; }

            virtual void doAction(); 

            virtual ~Wrapper();
        };

        extern bool g_usedHeap;

        void initAIEngine(std::ifstream* fin_=0);

        void destroyAIEngine();

        void popAllRecords(bool onlyAddNew_=false, bool removeAll_=false);
    }
}

#endif //AIWRAPPER_H