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authorBlockMen <nmuelll@web.de>2013-07-17 21:18:24 +0200
committerRealBadAngel <mk@realbadangel.pl>2013-07-24 01:01:56 +0200
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/*
Minetest-c55
Copyright (C) 2010 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 CLIENT_HEADER
#define CLIENT_HEADER

#include "connection.h"
#include "environment.h"
#include "irrlichttypes_extrabloated.h"
#include "jmutex.h"
#include <ostream>
#include <set>
#include <vector>
#include "clientobject.h"
#include "gamedef.h"
#include "inventorymanager.h"
#include "filesys.h"
#include "filecache.h"
#include "localplayer.h"
#include "util/pointedthing.h"

struct MeshMakeData;
class MapBlockMesh;
class IGameDef;
class IWritableTextureSource;
class IWritableItemDefManager;
class IWritableNodeDefManager;
//class IWritableCraftDefManager;
class ClientEnvironment;
struct MapDrawControl;
class MtEventManager;

class ClientNotReadyException : public BaseException
{
public:
	ClientNotReadyException(const char *s):
		BaseException(s)
	{}
};

struct QueuedMeshUpdate
{
	v3s16 p;
	MeshMakeData *data;
	bool ack_block_to_server;

	QueuedMeshUpdate();
	~QueuedMeshUpdate();
};

/*
	A thread-safe queue of mesh update tasks
*/
class MeshUpdateQueue
{
public:
	MeshUpdateQueue();

	~MeshUpdateQueue();
	
	/*
		peer_id=0 adds with nobody to send to
	*/
	void addBlock(v3s16 p, MeshMakeData *data,
			bool ack_block_to_server, bool urgent);

	// Returned pointer must be deleted
	// Returns NULL if queue is empty
	QueuedMeshUpdate * pop();

	u32 size()
	{
		JMutexAutoLock lock(m_mutex);
		return m_queue.size();
	}
	
private:
	std::vector<QueuedMeshUpdate*> m_queue;
	std::set<v3s16> m_urgents;
	JMutex m_mutex;
};

struct MeshUpdateResult
{
	v3s16 p;
	MapBlockMesh *mesh;
	bool ack_block_to_server;

	MeshUpdateResult():
		p(-1338,-1338,-1338),
		mesh(NULL),
		ack_block_to_server(false)
	{
	}
};

class MeshUpdateThread : public SimpleThread
{
public:

	MeshUpdateThread(IGameDef *gamedef):
		m_gamedef(gamedef)
	{
	}

	void * Thread();

	MeshUpdateQueue m_queue_in;

	MutexedQueue<MeshUpdateResult> m_queue_out;

	IGameDef *m_gamedef;
};

enum ClientEventType
{
	CE_NONE,
	CE_PLAYER_DAMAGE,
	CE_PLAYER_FORCE_MOVE,
	CE_DEATHSCREEN,
	CE_TEXTURES_UPDATED
};

struct ClientEvent
{
	ClientEventType type;
	union{
		struct{
		} none;
		struct{
			u8 amount;
		} player_damage;
		struct{
			f32 pitch;
			f32 yaw;
		} player_force_move;
		struct{
			bool set_camera_point_target;
			f32 camera_point_target_x;
			f32 camera_point_target_y;
			f32 camera_point_target_z;
		} deathscreen;
		struct{
		} textures_updated;
	};
};

class Client : public con::PeerHandler, public InventoryManager, public IGameDef
{
public:
	/*
		NOTE: Nothing is thread-safe here.
	*/

	Client(
			IrrlichtDevice *device,
			const char *playername,
			std::string password,
			MapDrawControl &control,
			IWritableTextureSource *tsrc,
			IWritableItemDefManager *itemdef,
			IWritableNodeDefManager *nodedef,
			ISoundManager *sound,
			MtEventManager *event
	);
	
	~Client();
	/*
		The name of the local player should already be set when
		calling this, as it is sent in the initialization.
	*/
	void connect(Address address);
	/*
		returns true when
			m_con.Connected() == true
			AND m_server_ser_ver != SER_FMT_VER_INVALID
		throws con::PeerNotFoundException if connection has been deleted,
		eg. timed out.
	*/
	bool connectedAndInitialized();
	/*
		Stuff that references the environment is valid only as
		long as this is not called. (eg. Players)
		If this throws a PeerNotFoundException, the connection has
		timed out.
	*/
	void step(float dtime);

	void ProcessData(u8 *data, u32 datasize, u16 sender_peer_id);
	// Returns true if something was received
	bool AsyncProcessPacket();
	bool AsyncProcessData();
	void Send(u16 channelnum, SharedBuffer<u8> data, bool reliable);

	void interact(u8 action, const PointedThing& pointed);

	void sendNodemetaFields(v3s16 p, const std::string &formname,
			const std::map<std::string, std::string> &fields);
	void sendInventoryFields(const std::string &formname,
			const std::map<std::string, std::string> &fields);
	void sendInventoryAction(InventoryAction *a);
	void sendChatMessage(const std::wstring &message);
	void sendChangePassword(const std::wstring oldpassword,
			const std::wstring newpassword);
	void sendDamage(u8 damage);
	void sendRespawn();

	ClientEnvironment& getEnv()
	{ return m_env; }
	
	// Causes urgent mesh updates (unlike Map::add/removeNodeWithEvent)