advtrains_interlocking/textures/at_il_tool.png

/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>

This program 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 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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#ifndef ENVIRONMENT_HEADER
#define ENVIRONMENT_HEADER

/*
	This class is the game's environment.
	It contains:
	- The map
	- Players
	- Other objects
	- The current time in the game
	- etc.
*/

#include <set>
#include "irrlichttypes_extrabloated.h"
#include "player.h"
#include <ostream>
#include "activeobject.h"
#include "util/container.h"
#include "util/numeric.h"
#include "mapnode.h"
#include "mapblock.h"

class ServerEnvironment;
class ActiveBlockModifier;
class ServerActiveObject;
typedef struct lua_State lua_State;
class ITextureSource;
class IGameDef;
class Map;
class ServerMap;
class ClientMap;

class Environment
{
public:
	// Environment will delete the map passed to the constructor
	Environment();
	virtual ~Environment();

	/*
		Step everything in environment.
		- Move players
		- Step mobs
		- Run timers of map
	*/
	virtual void step(f32 dtime) = 0;

	virtual Map & getMap() = 0;

	virtual void addPlayer(Player *player);
	void removePlayer(u16 peer_id);
	Player * getPlayer(u16 peer_id);
	Player * getPlayer(const char *name);
	Player * getRandomConnectedPlayer();
	Player * getNearestConnectedPlayer(v3f pos);
	core::list<Player*> getPlayers();
	core::list<Player*> getPlayers(bool ignore_disconnected);
	void printPlayers(std::ostream &o);
	
	u32 getDayNightRatio();
	
	// 0-23999
	virtual void setTimeOfDay(u32 time)
	{
		m_time_of_day = time;
		m_time_of_day_f = (float)time / 24000.0;
	}

	u32 getTimeOfDay()
	{ return m_time_of_day; }

	float getTimeOfDayF()
	{ return m_time_of_day_f; }

	void stepTimeOfDay(float dtime);

	void setTimeOfDaySpeed(float speed)
	{ m_time_of_day_speed = speed; }
	
	float getTimeOfDaySpeed()
	{ return m_time_of_day_speed; }

protected:
	// peer_ids in here should be unique, except that there may be many 0s
	core::list<Player*> m_players;
	// Time of day in milli-hours (0-23999); determines day and night
	u32 m_time_of_day;
	// Time of day in 0...1
	float m_time_of_day_f;
	float m_time_of_day_speed;
	// Used to buffer dtime for adding to m_time_of_day
	float m_time_counter;
};

/*
	Active block modifier interface.

	These are fed into ServerEnvironment at initialization time;
	ServerEnvironment handles deleting them.
*/

class ActiveBlockModifier
{
public:
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