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/*
   core/func.h
   This file is part of the Osirion project and is distributed under
   the terms of the GNU General Public License version 2
*/

#ifndef __INCLUDED_CORE_FUNC_H__
#define __INCLUDED_CORE_FUNC_H__

#include "sys/sys.h"
#include "core/player.h"

#include <sstream>
#include <string>
#include <map>

namespace core
{

class Func_t 
{
public:
	/// pointer to the function
	void *ptr;
	/// name of the function
	std::string name;
	/// flags
	unsigned int flags;
};

/// function type
typedef Func_t *Func;

/// function pointer type for local functions
typedef void(* FuncPtr)(std::stringstream &args);

/// fuction pointer for game functions
typedef void(* GameFuncPtr)(Player &player, std::stringstream &args);

/// the function registry
namespace func
{

/// function flags
enum Flags {Game=1};

/// add a function to the registry
void add(const char *functionname, FuncPtr functionptr, unsigned int flags=0);

/**
 * @brief add a game function to the registry
 * the flag core::func::Game will automaticly be set
 */
void add(const char *functionname, GameFuncPtr gamefunctionptr, unsigned int flags=0);

/// remove a function from the registry
void remove(const char *functionname);
void remove(const std::string &functionname);

/// find a fuction pointer
/** Returns 0 if the function pointer could not be found
 */
Func find(const std::string &functionname);

/// list the function registry
void list();

/// the function registry
extern std::map<std::string, Func> registry;

} // namespace func

} // namespace core

#endif // __INCLUDED_CORE_FUNC_H__