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/*
   core/module.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_MODULE_H__
#define __INCLUDED_CORE_MODULE_H__

#include <string>
#include "core/player.h"

namespace core
{

// a loadable game module
class Module
{
public:
	Module(const char *name);
	virtual ~Module();

/*----- inspectors ------------------------------------------------ */
	/// return true if the game module can run a timeframe
	inline bool running() const { return module_running; }

	/// return true if the game module can not run a timeframe
	inline bool error() const { return !module_running; }

	/// return the name of the module
	inline std::string const & name() const { return module_name; }
	
/*----- mutators -------------------------------------------------- */

	/// initialize the game module
	virtual void init() = 0;

	/// shutdown the game module
	virtual void shutdown() = 0;

	/// run one timeframe
	virtual void frame(float seconds) = 0;

	/// is called when a player connects
	virtual void player_connect(Player *player) = 0;

	/// is called when a player disconnects
	virtual void player_disconnect(Player *player) = 0;

/*----- static ---------------------------------------------------- */

	/// load a game module
	static void load(Module *module);

	/// unload the preloaded module
	static void unload();

	/// the preloaded module
	inline static Module *preload() { return module_preload; };

protected:
	/// set the disconnected state
	void abort();
	bool			module_running;

private:
	static Module 		*module_preload;
	std::string		module_name;

};

}

#endif // __INCLUDED_CORE_MODULE_H__