void Client::groundAction(u8 action, v3s16 nodepos_undersurface,
		v3s16 nodepos_oversurface, u16 item)
{
	if(connectedAndInitialized() == false){
		infostream<<"Client::groundAction() "
				"cancelled (not connected)"
				<<std::endl;
		return;
	}

	/*
		length: 17
		[0] u16 command
		[2] u8 action
		[3] v3s16 nodepos_undersurface
		[9] v3s16 nodepos_abovesurface
		[15] u16 item
		actions:
		0: start digging
		1: place block
		2: stop digging (all parameters ignored)
		3: digging completed
	*/
	u8 datasize = 2 + 1 + 6 + 6 + 2;
	SharedBuffer<u8> data(datasize);
	writeU16(&data[0], TOSERVER_GROUND_ACTION);
	writeU8(&data[2], action);
	writeV3S16(&data[3], nodepos_undersurface);
	writeV3S16(&data[9], nodepos_oversurface);
	writeU16(&data[15], item);
	Send(0, data, true);
}
Example #2
0
void AreaStore::serialize(std::ostream &os) const
{
	writeU8(os, 0); // Serialisation version

	// TODO: Compression?
	writeU16(os, areas_map.size());
	for (const auto &it : areas_map) {
		const Area &a = it.second;
		writeV3S16(os, a.minedge);
		writeV3S16(os, a.maxedge);
		writeU16(os, a.data.size());
		os.write(a.data.data(), a.data.size());
	}
}
Example #3
0
void AreaStore::serialize(std::ostream &os) const
{
	writeU8(os, 0); // Serialisation version

	// TODO: Compression?
	writeU16(os, areas_map.size());
	for (AreaMap::const_iterator it = areas_map.begin();
			it != areas_map.end(); ++it) {
		const Area &a = it->second;
		writeV3S16(os, a.minedge);
		writeV3S16(os, a.maxedge);
		writeU16(os, a.data.size());
		os.write(a.data.data(), a.data.size());
	}
}
Example #4
0
/*
	Minetest Schematic File Format

	All values are stored in big-endian byte order.
	[u32] signature: 'MTSM'
	[u16] version: 3
	[u16] size X
	[u16] size Y
	[u16] size Z
	For each Y:
		[u8] slice probability value
	[Name-ID table] Name ID Mapping Table
		[u16] name-id count
		For each name-id mapping:
			[u16] name length
			[u8[]] name
	ZLib deflated {
	For each node in schematic:  (for z, y, x)
		[u16] content
	For each node in schematic:
		[u8] probability of occurance (param1)
	For each node in schematic:
		[u8] param2
	}

	Version changes:
	1 - Initial version
	2 - Fixed messy never/always place; 0 probability is now never, 0xFF is always
	3 - Added y-slice probabilities; this allows for variable height structures
*/
void DecoSchematic::saveSchematicFile(INodeDefManager *ndef) {
	std::ostringstream ss(std::ios_base::binary);

	writeU32(ss, MTSCHEM_FILE_SIGNATURE);         // signature
	writeU16(ss, MTSCHEM_FILE_VER_HIGHEST_WRITE); // version
	writeV3S16(ss, size);                         // schematic size

	for (int y = 0; y != size.Y; y++)             // Y slice probabilities
		writeU8(ss, slice_probs[y]);

	std::vector<content_t> usednodes;
	int nodecount = size.X * size.Y * size.Z;
	build_nnlist_and_update_ids(schematic, nodecount, &usednodes);

	u16 numids = usednodes.size();
	writeU16(ss, numids); // name count
	for (int i = 0; i != numids; i++)
		ss << serializeString(ndef->get(usednodes[i]).name); // node names

	// compressed bulk node data
	MapNode::serializeBulk(ss, SER_FMT_VER_HIGHEST_WRITE, schematic,
				nodecount, 2, 2, true);

	fs::safeWriteToFile(filename, ss.str());
}
void PointedThing::serialize(std::ostream &os) const
{
	writeU8(os, 0); // version
	writeU8(os, (u8)type);
	switch (type) {
	case POINTEDTHING_NOTHING:
		break;
	case POINTEDTHING_NODE:
		writeV3S16(os, node_undersurface);
		writeV3S16(os, node_abovesurface);
		break;
	case POINTEDTHING_OBJECT:
		writeS16(os, object_id);
		break;
	}
}
void Client::sendSignNodeText(v3s16 p, std::string text)
{
	/*
		u16 command
		v3s16 p
		u16 textlen
		textdata
	*/
	std::ostringstream os(std::ios_base::binary);
	u8 buf[12];

	// Write command
	writeU16(buf, TOSERVER_SIGNNODETEXT);
	os.write((char*)buf, 2);

	// Write p
	writeV3S16(buf, p);
	os.write((char*)buf, 6);

	u16 textlen = text.size();
	// Write text length
	writeS16(buf, textlen);
	os.write((char*)buf, 2);

	// Write text
	os.write((char*)text.c_str(), textlen);

	// Make data buffer
	std::string s = os.str();
	SharedBuffer<u8> data((u8*)s.c_str(), s.size());
	// Send as reliable
	Send(0, data, true);
}
Example #7
0
void PointedThing::serialize(std::ostream &os) const
{
	writeU8(os, 0); // version
	writeU8(os, (u8)type);
	if(type == POINTEDTHING_NOTHING)
	{
		// nothing
	}
	else if(type == POINTEDTHING_NODE)
	{
		writeV3S16(os, node_undersurface);
		writeV3S16(os, node_abovesurface);
	}
	else if(type == POINTEDTHING_OBJECT)
	{
		writeS16(os, object_id);
	}
}
void TestSerialization::testStreamWrite()
{
	std::ostringstream os(std::ios_base::binary);
	std::string data;

	writeU8(os, 0x11);
	writeU16(os, 0x2233);
	writeU32(os, 0x44556677);
	writeU64(os, 0x8899AABBCCDDEEFF);

	writeS8(os, -128);
	writeS16(os, 30000);
	writeS32(os, -6);
	writeS64(os, -43);

	writeF1000(os, 53.53467f);
	writeF1000(os, -300000.32f);
	writeF1000(os, F1000_MIN);
	writeF1000(os, F1000_MAX);

	os << serializeString("foobar!");

	data = os.str();
	UASSERT(data.size() < sizeof(test_serialized_data));
	UASSERT(!memcmp(&data[0], test_serialized_data, data.size()));

	writeV2S16(os, v2s16(500, 500));
	writeV3S16(os, v3s16(4207, 604, -30));
	writeV2S32(os, v2s32(1920, 1080));
	writeV3S32(os, v3s32(-400, 6400054, 290549855));
	writeV2F1000(os, v2f(500.65661f, 350.34567f));

	os << serializeWideString(L"\x02~woof~\x5455");

	writeV3F1000(os, v3f(500, 10024.2f, -192.54f));
	writeARGB8(os, video::SColor(255, 128, 50, 128));

	os << serializeLongString("some longer string here");

	writeU16(os, 0xF00D);

	data = os.str();
	UASSERT(data.size() == sizeof(test_serialized_data));
	UASSERT(!memcmp(&data[0], test_serialized_data, sizeof(test_serialized_data)));
}
Example #9
0
/*
	Minetest Schematic File Format

	All values are stored in big-endian byte order.
	[u32] signature: 'MTSM'
	[u16] version: 1
	[u16] size X
	[u16] size Y
	[u16] size Z
	[Name-ID table] Name ID Mapping Table
		[u16] name-id count
		For each name-id mapping:
			[u16] name length
			[u8[]] name
	ZLib deflated {
	For each node in schematic:  (for z, y, x)
		[u16] content
	For each node in schematic:
		[u8] probability of occurance (param1)
	For each node in schematic:
		[u8] param2
	}
*/
void DecoSchematic::saveSchematicFile(INodeDefManager *ndef) {
	std::ofstream os(filename.c_str(), std::ios_base::binary);

	writeU32(os, MTSCHEM_FILE_SIGNATURE); // signature
	writeU16(os, 1);      // version
	writeV3S16(os, size); // schematic size
	
	std::vector<content_t> usednodes;
	int nodecount = size.X * size.Y * size.Z;
	build_nnlist_and_update_ids(schematic, nodecount, &usednodes);
	
	u16 numids = usednodes.size();
	writeU16(os, numids); // name count
	for (int i = 0; i != numids; i++)
		os << serializeString(ndef->get(usednodes[i]).name); // node names
		
	// compressed bulk node data
	MapNode::serializeBulk(os, SER_FMT_VER_HIGHEST, schematic,
				nodecount, 2, 2, true);
}
Example #10
0
bool Schematic::serializeToMts(std::ostream *os,
	const std::vector<std::string> &names)
{
	std::ostream &ss = *os;

	writeU32(ss, MTSCHEM_FILE_SIGNATURE);         // signature
	writeU16(ss, MTSCHEM_FILE_VER_HIGHEST_WRITE); // version
	writeV3S16(ss, size);                         // schematic size

	for (int y = 0; y != size.Y; y++)             // Y slice probabilities
		writeU8(ss, slice_probs[y]);

	writeU16(ss, names.size()); // name count
	for (size_t i = 0; i != names.size(); i++)
		ss << serializeString(names[i]); // node names

	// compressed bulk node data
	MapNode::serializeBulk(ss, SER_FMT_VER_HIGHEST_WRITE,
		schemdata, size.X * size.Y * size.Z, 2, 2, true);

	return true;
}
/*
	sender_peer_id given to this shall be quaranteed to be a valid peer
*/
void Client::ProcessData(u8 *data, u32 datasize, u16 sender_peer_id)
{
	DSTACK(__FUNCTION_NAME);

	// Ignore packets that don't even fit a command
	if(datasize < 2)
	{
		m_packetcounter.add(60000);
		return;
	}

	ToClientCommand command = (ToClientCommand)readU16(&data[0]);

	//infostream<<"Client: received command="<<command<<std::endl;
	m_packetcounter.add((u16)command);

	/*
		If this check is removed, be sure to change the queue
		system to know the ids
	*/
	if(sender_peer_id != PEER_ID_SERVER)
	{
		infostream<<"Client::ProcessData(): Discarding data not "
				"coming from server: peer_id="<<sender_peer_id
				<<std::endl;
		return;
	}

	u8 ser_version = m_server_ser_ver;

	//infostream<<"Client received command="<<(int)command<<std::endl;

	if(command == TOCLIENT_INIT)
	{
		if(datasize < 3)
			return;

		u8 deployed = data[2];

		infostream<<"Client: TOCLIENT_INIT received with "
				"deployed="<<((int)deployed&0xff)<<std::endl;

		if(deployed < SER_FMT_VER_LOWEST
				|| deployed > SER_FMT_VER_HIGHEST)
		{
			infostream<<"Client: TOCLIENT_INIT: Server sent "
					<<"unsupported ser_fmt_ver"<<std::endl;
			return;
		}

		m_server_ser_ver = deployed;

		// Get player position
		v3s16 playerpos_s16(0, BS*2+BS*20, 0);
		if(datasize >= 2+1+6)
			playerpos_s16 = readV3S16(&data[2+1]);
		v3f playerpos_f = intToFloat(playerpos_s16, BS) - v3f(0, BS/2, 0);

		{ //envlock
			//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out

			// Set player position
			Player *player = m_env.getLocalPlayer();
			assert(player != NULL);
			player->setPosition(playerpos_f);
		}

		if(datasize >= 2+1+6+8)
		{
			// Get map seed
			m_map_seed = readU64(&data[2+1+6]);
			infostream<<"Client: received map seed: "<<m_map_seed<<std::endl;
		}

		// Reply to server
		u32 replysize = 2;
		SharedBuffer<u8> reply(replysize);
		writeU16(&reply[0], TOSERVER_INIT2);
		// Send as reliable
		m_con.Send(PEER_ID_SERVER, 1, reply, true);

		return;
	}

	if(command == TOCLIENT_ACCESS_DENIED)
	{
		// The server didn't like our password. Note, this needs
		// to be processed even if the serialisation format has
		// not been agreed yet, the same as TOCLIENT_INIT.
		m_access_denied = true;
		m_access_denied_reason = L"Unknown";
		if(datasize >= 4)
		{
			std::string datastring((char*)&data[2], datasize-2);
			std::istringstream is(datastring, std::ios_base::binary);
			m_access_denied_reason = deSerializeWideString(is);
		}
		return;
	}

	if(ser_version == SER_FMT_VER_INVALID)
	{
		infostream<<"Client: Server serialization"
				" format invalid or not initialized."
				" Skipping incoming command="<<command<<std::endl;
		return;
	}

	// Just here to avoid putting the two if's together when
	// making some copypasta
	{}

	if(command == TOCLIENT_REMOVENODE)
	{
		if(datasize < 8)
			return;
		v3s16 p;
		p.X = readS16(&data[2]);
		p.Y = readS16(&data[4]);
		p.Z = readS16(&data[6]);

		//TimeTaker t1("TOCLIENT_REMOVENODE");

		// This will clear the cracking animation after digging
		((ClientMap&)m_env.getMap()).clearTempMod(p);

		removeNode(p);
	}
	else if(command == TOCLIENT_ADDNODE)
	{
		if(datasize < 8 + MapNode::serializedLength(ser_version))
			return;

		v3s16 p;
		p.X = readS16(&data[2]);
		p.Y = readS16(&data[4]);
		p.Z = readS16(&data[6]);

		//TimeTaker t1("TOCLIENT_ADDNODE");

		MapNode n;
		n.deSerialize(&data[8], ser_version);

		addNode(p, n);
	}
	else if(command == TOCLIENT_BLOCKDATA)
	{
		// Ignore too small packet
		if(datasize < 8)
			return;

		v3s16 p;
		p.X = readS16(&data[2]);
		p.Y = readS16(&data[4]);
		p.Z = readS16(&data[6]);

		/*infostream<<"Client: Thread: BLOCKDATA for ("
				<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/
		/*infostream<<"Client: Thread: BLOCKDATA for ("
				<<p.X<<","<<p.Y<<","<<p.Z<<")"<<std::endl;*/

		std::string datastring((char*)&data[8], datasize-8);
		std::istringstream istr(datastring, std::ios_base::binary);

		MapSector *sector;
		MapBlock *block;

		v2s16 p2d(p.X, p.Z);
		sector = m_env.getMap().emergeSector(p2d);

		assert(sector->getPos() == p2d);

		//TimeTaker timer("MapBlock deSerialize");
		// 0ms

		block = sector->getBlockNoCreateNoEx(p.Y);
		if(block)
		{
			/*
				Update an existing block
			*/
			//infostream<<"Updating"<<std::endl;
			block->deSerialize(istr, ser_version);
		}
		else
		{
			/*
				Create a new block
			*/
			//infostream<<"Creating new"<<std::endl;
			block = new MapBlock(&m_env.getMap(), p);
			block->deSerialize(istr, ser_version);
			sector->insertBlock(block);

			//DEBUG
			/*NodeMod mod;
			mod.type = NODEMOD_CHANGECONTENT;
			mod.param = CONTENT_MESE;
			block->setTempMod(v3s16(8,10,8), mod);
			block->setTempMod(v3s16(8,9,8), mod);
			block->setTempMod(v3s16(8,8,8), mod);
			block->setTempMod(v3s16(8,7,8), mod);
			block->setTempMod(v3s16(8,6,8), mod);*/
		}

#if 0
		/*
			Acknowledge block
		*/
		/*
			[0] u16 command
			[2] u8 count
			[3] v3s16 pos_0
			[3+6] v3s16 pos_1
			...
		*/
		u32 replysize = 2+1+6;
		SharedBuffer<u8> reply(replysize);
		writeU16(&reply[0], TOSERVER_GOTBLOCKS);
		reply[2] = 1;
		writeV3S16(&reply[3], p);
		// Send as reliable
		m_con.Send(PEER_ID_SERVER, 1, reply, true);
#endif

		/*
			Update Mesh of this block and blocks at x-, y- and z-.
			Environment should not be locked as it interlocks with the
			main thread, from which is will want to retrieve textures.
		*/

		//m_env.getClientMap().updateMeshes(block->getPos(), getDayNightRatio());
		/*
			Add it to mesh update queue and set it to be acknowledged after update.
		*/
		//infostream<<"Adding mesh update task for received block"<<std::endl;
		addUpdateMeshTaskWithEdge(p, true);
	}
	else if(command == TOCLIENT_PLAYERPOS)
	{
		infostream<<"Received deprecated TOCLIENT_PLAYERPOS"
				<<std::endl;
		/*u16 our_peer_id;
		{
			//JMutexAutoLock lock(m_con_mutex); //bulk comment-out
			our_peer_id = m_con.GetPeerID();
		}
		// Cancel if we don't have a peer id
		if(our_peer_id == PEER_ID_INEXISTENT){
			infostream<<"TOCLIENT_PLAYERPOS cancelled: "
					"we have no peer id"
					<<std::endl;
			return;
		}*/

		{ //envlock
			//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out

			u32 player_size = 2+12+12+4+4;

			u32 player_count = (datasize-2) / player_size;
			u32 start = 2;
			for(u32 i=0; i<player_count; i++)
			{
				u16 peer_id = readU16(&data[start]);

				Player *player = m_env.getPlayer(peer_id);

				// Skip if player doesn't exist
				if(player == NULL)
				{
					start += player_size;
					continue;
				}

				// Skip if player is local player
				if(player->isLocal())
				{
					start += player_size;
					continue;
				}

				v3s32 ps = readV3S32(&data[start+2]);
				v3s32 ss = readV3S32(&data[start+2+12]);
				s32 pitch_i = readS32(&data[start+2+12+12]);
				s32 yaw_i = readS32(&data[start+2+12+12+4]);
				/*infostream<<"Client: got "
						<<"pitch_i="<<pitch_i
						<<" yaw_i="<<yaw_i<<std::endl;*/
				f32 pitch = (f32)pitch_i / 100.0;
				f32 yaw = (f32)yaw_i / 100.0;
				v3f position((f32)ps.X/100., (f32)ps.Y/100., (f32)ps.Z/100.);
				v3f speed((f32)ss.X/100., (f32)ss.Y/100., (f32)ss.Z/100.);
				player->setPosition(position);
				player->setSpeed(speed);
				player->setPitch(pitch);
				player->setYaw(yaw);

				/*infostream<<"Client: player "<<peer_id
						<<" pitch="<<pitch
						<<" yaw="<<yaw<<std::endl;*/

				start += player_size;
			}
		} //envlock
	}
	else if(command == TOCLIENT_PLAYERINFO)
	{
		u16 our_peer_id;
		{
			//JMutexAutoLock lock(m_con_mutex); //bulk comment-out
			our_peer_id = m_con.GetPeerID();
		}
		// Cancel if we don't have a peer id
		if(our_peer_id == PEER_ID_INEXISTENT){
			infostream<<"TOCLIENT_PLAYERINFO cancelled: "
					"we have no peer id"
					<<std::endl;
			return;
		}

		//infostream<<"Client: Server reports players:"<<std::endl;

		{ //envlock
			//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out

			u32 item_size = 2+PLAYERNAME_SIZE;
			u32 player_count = (datasize-2) / item_size;
			u32 start = 2;
			// peer_ids
			core::list<u16> players_alive;
			for(u32 i=0; i<player_count; i++)
			{
				// Make sure the name ends in '\0'
				data[start+2+20-1] = 0;

				u16 peer_id = readU16(&data[start]);

				players_alive.push_back(peer_id);

				/*infostream<<"peer_id="<<peer_id
						<<" name="<<((char*)&data[start+2])<<std::endl;*/

				// Don't update the info of the local player
				if(peer_id == our_peer_id)
				{
					start += item_size;
					continue;
				}

				Player *player = m_env.getPlayer(peer_id);

				// Create a player if it doesn't exist
				if(player == NULL)
				{
					player = new RemotePlayer(
							m_device->getSceneManager()->getRootSceneNode(),
							m_device,
							-1);
					player->peer_id = peer_id;
					m_env.addPlayer(player);
					infostream<<"Client: Adding new player "
							<<peer_id<<std::endl;
				}

				player->updateName((char*)&data[start+2]);

				start += item_size;
			}

			/*
				Remove those players from the environment that
				weren't listed by the server.
			*/
			//infostream<<"Removing dead players"<<std::endl;
			core::list<Player*> players = m_env.getPlayers();
			core::list<Player*>::Iterator ip;
			for(ip=players.begin(); ip!=players.end(); ip++)
			{
				// Ingore local player
				if((*ip)->isLocal())
					continue;

				// Warn about a special case
				if((*ip)->peer_id == 0)
				{
					infostream<<"Client: Removing "
							"dead player with id=0"<<std::endl;
				}

				bool is_alive = false;
				core::list<u16>::Iterator i;
				for(i=players_alive.begin(); i!=players_alive.end(); i++)
				{
					if((*ip)->peer_id == *i)
					{
						is_alive = true;
						break;
					}
				}
				/*infostream<<"peer_id="<<((*ip)->peer_id)
						<<" is_alive="<<is_alive<<std::endl;*/
				if(is_alive)
					continue;
				infostream<<"Removing dead player "<<(*ip)->peer_id
						<<std::endl;
				m_env.removePlayer((*ip)->peer_id);
			}
		} //envlock
	}
	else if(command == TOCLIENT_SECTORMETA)
	{
		infostream<<"Client received DEPRECATED TOCLIENT_SECTORMETA"<<std::endl;
#if 0
		/*
			[0] u16 command
			[2] u8 sector count
			[3...] v2s16 pos + sector metadata
		*/
		if(datasize < 3)
			return;

		//infostream<<"Client received TOCLIENT_SECTORMETA"<<std::endl;

		{ //envlock
			//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out

			std::string datastring((char*)&data[2], datasize-2);
			std::istringstream is(datastring, std::ios_base::binary);

			u8 buf[4];

			is.read((char*)buf, 1);
			u16 sector_count = readU8(buf);

			//infostream<<"sector_count="<<sector_count<<std::endl;

			for(u16 i=0; i<sector_count; i++)
			{
				// Read position
				is.read((char*)buf, 4);
				v2s16 pos = readV2S16(buf);
				/*infostream<<"Client: deserializing sector at "
						<<"("<<pos.X<<","<<pos.Y<<")"<<std::endl;*/
				// Create sector
				assert(m_env.getMap().mapType() == MAPTYPE_CLIENT);
				((ClientMap&)m_env.getMap()).deSerializeSector(pos, is);
			}
		} //envlock
#endif
	}
	else if(command == TOCLIENT_INVENTORY)
	{
		if(datasize < 3)
			return;

		//TimeTaker t1("Parsing TOCLIENT_INVENTORY", m_device);

		{ //envlock
			//TimeTaker t2("mutex locking", m_device);
			//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
			//t2.stop();

			//TimeTaker t3("istringstream init", m_device);
			std::string datastring((char*)&data[2], datasize-2);
			std::istringstream is(datastring, std::ios_base::binary);
			//t3.stop();

			//m_env.printPlayers(infostream);

			//TimeTaker t4("player get", m_device);
			Player *player = m_env.getLocalPlayer();
			assert(player != NULL);
			//t4.stop();

			//TimeTaker t1("inventory.deSerialize()", m_device);
			player->inventory.deSerialize(is);
			//t1.stop();

			m_inventory_updated = true;

			//infostream<<"Client got player inventory:"<<std::endl;
			//player->inventory.print(infostream);
		}
	}
	//DEBUG
	else if(command == TOCLIENT_OBJECTDATA)
	{
		// Strip command word and create a stringstream
		std::string datastring((char*)&data[2], datasize-2);
		std::istringstream is(datastring, std::ios_base::binary);

		u8 buf[12];

		/*
			Read players
		*/

		is.read((char*)buf, 2);
		u16 playercount = readU16(buf);

		for(u16 i=0; i<playercount; i++)
		{
			is.read((char*)buf, 2);
			u16 peer_id = readU16(buf);
			is.read((char*)buf, 12);
			v3s32 p_i = readV3S32(buf);
			is.read((char*)buf, 12);
			v3s32 s_i = readV3S32(buf);
			is.read((char*)buf, 4);
			s32 pitch_i = readS32(buf);
			is.read((char*)buf, 4);
			s32 yaw_i = readS32(buf);

			Player *player = m_env.getPlayer(peer_id);

			// Skip if player doesn't exist
			if(player == NULL)
			{
				continue;
			}

			// Skip if player is local player
			if(player->isLocal())
			{
				continue;
			}

			f32 pitch = (f32)pitch_i / 100.0;
			f32 yaw = (f32)yaw_i / 100.0;
			v3f position((f32)p_i.X/100., (f32)p_i.Y/100., (f32)p_i.Z/100.);
			v3f speed((f32)s_i.X/100., (f32)s_i.Y/100., (f32)s_i.Z/100.);

			player->setPosition(position);
			player->setSpeed(speed);
			player->setPitch(pitch);
			player->setYaw(yaw);
		}

		/*
			Read block objects
			NOTE: Deprecated stuff
		*/

		// Read active block count
		u16 blockcount = readU16(is);
		if(blockcount != 0){
			infostream<<"TOCLIENT_OBJECTDATA: blockcount != 0 "
					"not supported"<<std::endl;
			return;
		}
	}
	else if(command == TOCLIENT_TIME_OF_DAY)
	{
		if(datasize < 4)
			return;

		u16 time_of_day = readU16(&data[2]);
		time_of_day = time_of_day % 24000;
		//infostream<<"Client: time_of_day="<<time_of_day<<std::endl;

		/*
			time_of_day:
			0 = midnight
			12000 = midday
		*/
		{
			m_env.setTimeOfDay(time_of_day);

			u32 dr = m_env.getDayNightRatio();

			infostream<<"Client: time_of_day="<<time_of_day
					<<", dr="<<dr
					<<std::endl;
		}

	}
	else if(command == TOCLIENT_CHAT_MESSAGE)
	{
		/*
			u16 command
			u16 length
			wstring message
		*/
		u8 buf[6];
		std::string datastring((char*)&data[2], datasize-2);
		std::istringstream is(datastring, std::ios_base::binary);

		// Read stuff
		is.read((char*)buf, 2);
		u16 len = readU16(buf);

		std::wstring message;
		for(u16 i=0; i<len; i++)
		{
			is.read((char*)buf, 2);
			message += (wchar_t)readU16(buf);
		}

		/*infostream<<"Client received chat message: "
				<<wide_to_narrow(message)<<std::endl;*/

		m_chat_queue.push_back(message);
	}
	else if(command == TOCLIENT_ACTIVE_OBJECT_REMOVE_ADD)
	{
		//if(g_settings->getBool("enable_experimental"))
		{
			/*
				u16 command
				u16 count of removed objects
				for all removed objects {
					u16 id
				}
				u16 count of added objects
				for all added objects {
					u16 id
					u8 type
					u32 initialization data length
					string initialization data
				}
			*/

			char buf[6];
			// Get all data except the command number
			std::string datastring((char*)&data[2], datasize-2);
			// Throw them in an istringstream
			std::istringstream is(datastring, std::ios_base::binary);

			// Read stuff

			// Read removed objects
			is.read(buf, 2);
			u16 removed_count = readU16((u8*)buf);
			for(u16 i=0; i<removed_count; i++)
			{
				is.read(buf, 2);
				u16 id = readU16((u8*)buf);
				// Remove it
				{
					//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
					m_env.removeActiveObject(id);
				}
			}

			// Read added objects
			is.read(buf, 2);
			u16 added_count = readU16((u8*)buf);
			for(u16 i=0; i<added_count; i++)
			{
				is.read(buf, 2);
				u16 id = readU16((u8*)buf);
				is.read(buf, 1);
				u8 type = readU8((u8*)buf);
				std::string data = deSerializeLongString(is);
				// Add it
				{
					//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
					m_env.addActiveObject(id, type, data);
				}
			}
		}
	}
	else if(command == TOCLIENT_ACTIVE_OBJECT_MESSAGES)
	{
		//if(g_settings->getBool("enable_experimental"))
		{
			/*
				u16 command
				for all objects
				{
					u16 id
					u16 message length
					string message
				}
			*/
			char buf[6];
			// Get all data except the command number
			std::string datastring((char*)&data[2], datasize-2);
			// Throw them in an istringstream
			std::istringstream is(datastring, std::ios_base::binary);

			while(is.eof() == false)
			{
				// Read stuff
				is.read(buf, 2);
				u16 id = readU16((u8*)buf);
				if(is.eof())
					break;
				is.read(buf, 2);
				u16 message_size = readU16((u8*)buf);
				std::string message;
				message.reserve(message_size);
				for(u16 i=0; i<message_size; i++)
				{
					is.read(buf, 1);
					message.append(buf, 1);
				}
				// Pass on to the environment
				{
					//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out
					m_env.processActiveObjectMessage(id, message);
				}
			}
		}
	}
	else if(command == TOCLIENT_HP)
	{
		std::string datastring((char*)&data[2], datasize-2);
		std::istringstream is(datastring, std::ios_base::binary);
		Player *player = m_env.getLocalPlayer();
		assert(player != NULL);
		u8 hp = readU8(is);
		player->hp = hp;
	}
	else if(command == TOCLIENT_MOVE_PLAYER)
	{
		std::string datastring((char*)&data[2], datasize-2);
		std::istringstream is(datastring, std::ios_base::binary);
		Player *player = m_env.getLocalPlayer();
		assert(player != NULL);
		v3f pos = readV3F1000(is);
		f32 pitch = readF1000(is);
		f32 yaw = readF1000(is);
		player->setPosition(pos);
		/*player->setPitch(pitch);
		player->setYaw(yaw);*/

		infostream<<"Client got TOCLIENT_MOVE_PLAYER"
				<<" pos=("<<pos.X<<","<<pos.Y<<","<<pos.Z<<")"
				<<" pitch="<<pitch
				<<" yaw="<<yaw
				<<std::endl;

		/*
			Add to ClientEvent queue.
			This has to be sent to the main program because otherwise
			it would just force the pitch and yaw values to whatever
			the camera points to.
		*/
		ClientEvent event;
		event.type = CE_PLAYER_FORCE_MOVE;
		event.player_force_move.pitch = pitch;
		event.player_force_move.yaw = yaw;
		m_client_event_queue.push_back(event);

		// Ignore damage for a few seconds, so that the player doesn't
		// get damage from falling on ground
		m_ignore_damage_timer = 3.0;
	}
	else if(command == TOCLIENT_PLAYERITEM)
	{
		std::string datastring((char*)&data[2], datasize-2);
		std::istringstream is(datastring, std::ios_base::binary);

		u16 count = readU16(is);

		for (u16 i = 0; i < count; ++i) {
			u16 peer_id = readU16(is);
			Player *player = m_env.getPlayer(peer_id);

			if (player == NULL)
			{
				infostream<<"Client: ignoring player item "
					<< deSerializeString(is)
					<< " for non-existing peer id " << peer_id
					<< std::endl;
				continue;
			} else if (player->isLocal()) {
				infostream<<"Client: ignoring player item "
					<< deSerializeString(is)
					<< " for local player" << std::endl;
				continue;
			} else {
				InventoryList *inv = player->inventory.getList("main");
				std::string itemstring(deSerializeString(is));
				if (itemstring.empty()) {
					inv->deleteItem(0);
					infostream
						<<"Client: empty player item for peer "
						<< peer_id << std::endl;
				} else {
					std::istringstream iss(itemstring);
					delete inv->changeItem(0, InventoryItem::deSerialize(iss));
					infostream<<"Client: player item for peer " << peer_id << ": ";
					player->getWieldItem()->serialize(infostream);
					infostream<<std::endl;
				}
			}
		}
	}
	else if(command == TOCLIENT_DEATHSCREEN)
	{
		std::string datastring((char*)&data[2], datasize-2);
		std::istringstream is(datastring, std::ios_base::binary);

		bool set_camera_point_target = readU8(is);
		v3f camera_point_target = readV3F1000(is);

		ClientEvent event;
		event.type = CE_DEATHSCREEN;
		event.deathscreen.set_camera_point_target = set_camera_point_target;
		event.deathscreen.camera_point_target_x = camera_point_target.X;
		event.deathscreen.camera_point_target_y = camera_point_target.Y;
		event.deathscreen.camera_point_target_z = camera_point_target.Z;
		m_client_event_queue.push_back(event);
	}
	else
	{
		infostream<<"Client: Ignoring unknown command "
				<<command<<std::endl;
	}
}
void Client::step(float dtime)
{
	DSTACK(__FUNCTION_NAME);

	// Limit a bit
	if(dtime > 2.0)
		dtime = 2.0;

	if(m_ignore_damage_timer > dtime)
		m_ignore_damage_timer -= dtime;
	else
		m_ignore_damage_timer = 0.0;

	//infostream<<"Client steps "<<dtime<<std::endl;

	{
		//TimeTaker timer("ReceiveAll()", m_device);
		// 0ms
		ReceiveAll();
	}

	{
		//TimeTaker timer("m_con_mutex + m_con.RunTimeouts()", m_device);
		// 0ms
		//JMutexAutoLock lock(m_con_mutex); //bulk comment-out
		m_con.RunTimeouts(dtime);
	}

	/*
		Packet counter
	*/
	{
		float &counter = m_packetcounter_timer;
		counter -= dtime;
		if(counter <= 0.0)
		{
			counter = 20.0;

			infostream<<"Client packetcounter (20s):"<<std::endl;
			m_packetcounter.print(infostream);
			m_packetcounter.clear();
		}
	}

	// Get connection status
	bool connected = connectedAndInitialized();

#if 0
	{
		/*
			Delete unused sectors

			NOTE: This jams the game for a while because deleting sectors
			      clear caches
		*/

		float &counter = m_delete_unused_sectors_timer;
		counter -= dtime;
		if(counter <= 0.0)
		{
			// 3 minute interval
			//counter = 180.0;
			counter = 60.0;

			//JMutexAutoLock lock(m_env_mutex); //bulk comment-out

			core::list<v3s16> deleted_blocks;

			float delete_unused_sectors_timeout =
				g_settings->getFloat("client_delete_unused_sectors_timeout");

			// Delete sector blocks
			/*u32 num = m_env.getMap().unloadUnusedData
					(delete_unused_sectors_timeout,
					true, &deleted_blocks);*/

			// Delete whole sectors
			m_env.getMap().unloadUnusedData
					(delete_unused_sectors_timeout,
					&deleted_blocks);

			if(deleted_blocks.size() > 0)
			{
				/*infostream<<"Client: Deleted blocks of "<<num
						<<" unused sectors"<<std::endl;*/
				/*infostream<<"Client: Deleted "<<num
						<<" unused sectors"<<std::endl;*/

				/*
					Send info to server
				*/

				// Env is locked so con can be locked.
				//JMutexAutoLock lock(m_con_mutex); //bulk comment-out

				core::list<v3s16>::Iterator i = deleted_blocks.begin();
				core::list<v3s16> sendlist;
				for(;;)
				{
					if(sendlist.size() == 255 || i == deleted_blocks.end())
					{
						if(sendlist.size() == 0)
							break;
						/*
							[0] u16 command
							[2] u8 count
							[3] v3s16 pos_0
							[3+6] v3s16 pos_1
							...
						*/
						u32 replysize = 2+1+6*sendlist.size();
						SharedBuffer<u8> reply(replysize);
						writeU16(&reply[0], TOSERVER_DELETEDBLOCKS);
						reply[2] = sendlist.size();
						u32 k = 0;
						for(core::list<v3s16>::Iterator
								j = sendlist.begin();
								j != sendlist.end(); j++)
						{
							writeV3S16(&reply[2+1+6*k], *j);
							k++;
						}
						m_con.Send(PEER_ID_SERVER, 1, reply, true);

						if(i == deleted_blocks.end())
							break;

						sendlist.clear();
					}

					sendlist.push_back(*i);
					i++;
				}
			}
		}
	}
#endif

	if(connected == false)
	{
		float &counter = m_connection_reinit_timer;
		counter -= dtime;
		if(counter <= 0.0)
		{
			counter = 2.0;

			//JMutexAutoLock envlock(m_env_mutex); //bulk comment-out

			Player *myplayer = m_env.getLocalPlayer();
			assert(myplayer != NULL);

			// Send TOSERVER_INIT
			// [0] u16 TOSERVER_INIT
			// [2] u8 SER_FMT_VER_HIGHEST
			// [3] u8[20] player_name
			// [23] u8[28] password (new in some version)
			// [51] u16 client network protocol version (new in some version)
			SharedBuffer<u8> data(2+1+PLAYERNAME_SIZE+PASSWORD_SIZE+2);
			writeU16(&data[0], TOSERVER_INIT);
			writeU8(&data[2], SER_FMT_VER_HIGHEST);

			memset((char*)&data[3], 0, PLAYERNAME_SIZE);
			snprintf((char*)&data[3], PLAYERNAME_SIZE, "%s", myplayer->getName());

			/*infostream<<"Client: sending initial password hash: \""<<m_password<<"\""
					<<std::endl;*/

			memset((char*)&data[23], 0, PASSWORD_SIZE);
			snprintf((char*)&data[23], PASSWORD_SIZE, "%s", m_password.c_str());

			// This should be incremented in each version
			writeU16(&data[51], 3);

			// Send as unreliable
			Send(0, data, false);
		}

		// Not connected, return
		return;
	}

	/*
		Do stuff if connected
	*/

	/*
		Run Map's timers and unload unused data
	*/
	const float map_timer_and_unload_dtime = 5.25;
	if(m_map_timer_and_unload_interval.step(dtime, map_timer_and_unload_dtime))
	{
		ScopeProfiler sp(g_profiler, "Client: map timer and unload");
		core::list<v3s16> deleted_blocks;
		m_env.getMap().timerUpdate(map_timer_and_unload_dtime,
				g_settings->getFloat("client_unload_unused_data_timeout"),
				&deleted_blocks);

		/*if(deleted_blocks.size() > 0)
			infostream<<"Client: Unloaded "<<deleted_blocks.size()
					<<" unused blocks"<<std::endl;*/

		/*
			Send info to server
			NOTE: This loop is intentionally iterated the way it is.
		*/

		core::list<v3s16>::Iterator i = deleted_blocks.begin();
		core::list<v3s16> sendlist;
		for(;;)
		{
			if(sendlist.size() == 255 || i == deleted_blocks.end())
			{
				if(sendlist.size() == 0)
					break;
				/*
					[0] u16 command
					[2] u8 count
					[3] v3s16 pos_0
					[3+6] v3s16 pos_1
					...
				*/
				u32 replysize = 2+1+6*sendlist.size();
				SharedBuffer<u8> reply(replysize);
				writeU16(&reply[0], TOSERVER_DELETEDBLOCKS);
				reply[2] = sendlist.size();
				u32 k = 0;
				for(core::list<v3s16>::Iterator
						j = sendlist.begin();
						j != sendlist.end(); j++)
				{
					writeV3S16(&reply[2+1+6*k], *j);
					k++;
				}
				m_con.Send(PEER_ID_SERVER, 1, reply, true);

				if(i == deleted_blocks.end())
					break;

				sendlist.clear();
			}

			sendlist.push_back(*i);
			i++;
		}
	}

	/*
		Handle environment
	*/
	{
		// 0ms
		//JMutexAutoLock lock(m_env_mutex); //bulk comment-out

		// Control local player (0ms)
		LocalPlayer *player = m_env.getLocalPlayer();
		assert(player != NULL);
		player->applyControl(dtime);

		//TimeTaker envtimer("env step", m_device);
		// Step environment
		m_env.step(dtime);

		/*
			Get events
		*/
		for(;;)
		{
			ClientEnvEvent event = m_env.getClientEvent();
			if(event.type == CEE_NONE)
			{
				break;
			}
			else if(event.type == CEE_PLAYER_DAMAGE)
			{
				if(m_ignore_damage_timer <= 0)
				{
					u8 damage = event.player_damage.amount;
					sendDamage(damage);

					// Add to ClientEvent queue
					ClientEvent event;
					event.type = CE_PLAYER_DAMAGE;
					event.player_damage.amount = damage;
					m_client_event_queue.push_back(event);
				}
			}
		}
	}

	/*
		Print some info
	*/
	{
		float &counter = m_avg_rtt_timer;
		counter += dtime;
		if(counter >= 10)
		{
			counter = 0.0;
			//JMutexAutoLock lock(m_con_mutex); //bulk comment-out
			// connectedAndInitialized() is true, peer exists.
			float avg_rtt = m_con.GetPeerAvgRTT(PEER_ID_SERVER);
			infostream<<"Client: avg_rtt="<<avg_rtt<<std::endl;
		}
	}

	/*
		Send player position to server
	*/
	{
		float &counter = m_playerpos_send_timer;
		counter += dtime;
		if(counter >= 0.2)
		{
			counter = 0.0;
			sendPlayerPos();
		}
	}

	/*
		Replace updated meshes
	*/
	{
		//JMutexAutoLock lock(m_env_mutex); //bulk comment-out

		//TimeTaker timer("** Processing mesh update result queue");
		// 0ms

		/*infostream<<"Mesh update result queue size is "
				<<m_mesh_update_thread.m_queue_out.size()
				<<std::endl;*/

		while(m_mesh_update_thread.m_queue_out.size() > 0)
		{
			MeshUpdateResult r = m_mesh_update_thread.m_queue_out.pop_front();
			MapBlock *block = m_env.getMap().getBlockNoCreateNoEx(r.p);
			if(block)
			{
				block->replaceMesh(r.mesh);
			}
			if(r.ack_block_to_server)
			{
				/*infostream<<"Client: ACK block ("<<r.p.X<<","<<r.p.Y
						<<","<<r.p.Z<<")"<<std::endl;*/
				/*
					Acknowledge block
				*/
				/*
					[0] u16 command
					[2] u8 count
					[3] v3s16 pos_0
					[3+6] v3s16 pos_1
					...
				*/
				u32 replysize = 2+1+6;
				SharedBuffer<u8> reply(replysize);
				writeU16(&reply[0], TOSERVER_GOTBLOCKS);
				reply[2] = 1;
				writeV3S16(&reply[3], r.p);
				// Send as reliable
				m_con.Send(PEER_ID_SERVER, 1, reply, true);
			}
		}
	}
}