/*
 * PVVMUD a 3D MUD
 * Copyright (C) 1998-1999  Programvareverkstedet (pvv@pvv.org)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
#ifndef _GAMEFUNCTION_H
#define _GAMEFUNCTION_H

#include "pvvmud.H"
#include <hash_map>
#include <iostream>

class CGameFunctionObject {
   
public:

  CGameFunctionObject(void);
  ~CGameFunctionObject(void);

  int type;
  union {
    bool (*c)();
    char *scriptSource;
    WORD *scriptByteCode;
  } func;

  bool execute(CGameEvent *gameEvent);
};

class CGameFunction {
  struct eqstr {
     bool operator()(const char* s1,const char* s2) const
    {
      return strcmp(s1,s2)==0;
    }
  };
  typedef hash_map<const char*, CGameFunctionObject *, hash<const char*>, eqstr> funchash;
  funchash hash;

public:

  CGameFunction(void) {};
  ~CGameFunction(void);
    
  // Handling of C++ functions
  void add(char *name, void (*function) (CGameEvent *gameEvent)); 
  // Handling of functions in script code
  void add(char *name, char *function,CGameEvent *gameEvent);
  // Handling of byte code functions
  void add(char *name, WORD *function,CGameEvent *gameEvent);
  void remove(char *name);

  bool execute(char *name, CGameEvent *gameEvent);
  bool execute(CGameFunctionObject *gfo, CGameEvent *gameEvent);

  CGameFunctionObject *getGameFuncObj(char *name);

  bool load(iostream &readFile);
  bool save(iostream &writeFile);

};

#endif