C++ PlayerSAO类代码示例

RemotePlayer *ObjectRef::getplayer(ObjectRef *ref)
{
	PlayerSAO *playersao = getplayersao(ref);
	if (playersao == NULL)
		return NULL;
	return playersao->getPlayer();
}

void Server::SendPlayerBreath(u16 peer_id)
{
	DSTACK(FUNCTION_NAME);
	PlayerSAO *playersao = getPlayerSAO(peer_id);
	if (!playersao)
		return;
	m_script->player_event(playersao, "breath_changed");
	SendBreath(peer_id, playersao->getBreath());
}

// get_look_yaw2(self)
int ObjectRef::l_get_look_horizontal(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	ObjectRef *ref = checkobject(L, 1);
	PlayerSAO* co = getplayersao(ref);
	if (co == NULL) return 0;
	// Do it
	lua_pushnumber(L, co->getRadRotation().Y);
	return 1;
}

// set_look_yaw(self, radians)
int ObjectRef::l_set_look_yaw(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	ObjectRef *ref = checkobject(L, 1);
	PlayerSAO* co = getplayersao(ref);
	if (co == NULL) return 0;
	float yaw = luaL_checknumber(L, 2) * core::RADTODEG;
	// Do it
	co->setYaw(yaw);
	return 1;
}

// get_look_dir(self)
int ObjectRef::l_get_look_dir(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	ObjectRef *ref = checkobject(L, 1);
	PlayerSAO* co = getplayersao(ref);
	if (co == NULL) return 0;
	// Do it
	float pitch = co->getRadPitchDep();
	float yaw = co->getRadYawDep();
	v3f v(cos(pitch)*cos(yaw), sin(pitch), cos(pitch)*sin(yaw));
	push_v3f(L, v);
	return 1;
}

// DEPRECATED
// get_look_yaw(self)
int ObjectRef::l_get_look_yaw(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;

	log_deprecated(L,
		"Deprecated call to get_look_yaw, use get_look_horizontal instead");

	ObjectRef *ref = checkobject(L, 1);
	PlayerSAO* co = getplayersao(ref);
	if (co == NULL) return 0;
	// Do it
	lua_pushnumber(L, co->getRadYawDep());
	return 1;
}

// DEPRECATED
// set_look_yaw(self, radians)
int ObjectRef::l_set_look_yaw(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;

	log_deprecated(L,
		"Deprecated call to set_look_yaw, use set_look_horizontal instead.");

	ObjectRef *ref = checkobject(L, 1);
	PlayerSAO* co = getplayersao(ref);
	if (co == NULL) return 0;
	float yaw = luaL_checknumber(L, 2) * core::RADTODEG;
	// Do it
	co->setYawAndSend(yaw);
	return 1;
}

// get_nametag_attributes(self)
int ObjectRef::l_get_nametag_attributes(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	ObjectRef *ref = checkobject(L, 1);
	PlayerSAO *playersao = getplayersao(ref);
	if (playersao == NULL)
		return 0;

	video::SColor color = playersao->getNametagColor();

	lua_newtable(L);
	push_ARGB8(L, color);
	lua_setfield(L, -2, "color");

	return 1;
}

void Server::handleCommand_ClientReady(NetworkPacket* pkt) {
	const auto peer_id = pkt->getPeerId();
	auto & packet = *(pkt->packet);

	u16 peer_proto_ver = getClient(peer_id, CS_InitDone)->net_proto_version;
	// clients <= protocol version 22 did not send ready message,
	// they're already initialized

	if (peer_proto_ver <= 22) {
		infostream << "Client sent message not expected by a "
		           << "client using protocol version <= 22,"
		           << "disconnecting peer_id: " << peer_id << std::endl;
		m_con.DisconnectPeer(peer_id);
		return;
	}

	PlayerSAO* playersao = StageTwoClientInit(peer_id);

	// If failed, cancel
	if (playersao == NULL) {
		errorstream
		        << "TOSERVER_CLIENT_READY stage 2 client init failed for peer_id: "
		        << peer_id << std::endl;
		m_con.DisconnectPeer(peer_id);
		return;
	}
	int version_patch = 0, version_tweak = 0;
	packet.convert_safe(TOSERVER_CLIENT_READY_VERSION_PATCH, version_patch);
	packet.convert_safe(TOSERVER_CLIENT_READY_VERSION_TWEAK, version_tweak);
	if (version_tweak) {} //no warn todo remove
	m_clients.setClientVersion(
	    peer_id,
	    packet[TOSERVER_CLIENT_READY_VERSION_MAJOR].as<int>(),
	    packet[TOSERVER_CLIENT_READY_VERSION_MINOR].as<int>(),
	    version_patch,
	    //version_tweak,
	    packet[TOSERVER_CLIENT_READY_VERSION_STRING].as<std::string>()
	);
	m_clients.event(peer_id, CSE_SetClientReady);
	m_script->on_joinplayer(playersao);

	stat.add("join", playersao->getPlayer()->getName());

}

// setvelocity(self, {x=num, y=num, z=num})
int ObjectRef::l_setvelocity(lua_State *L)
{
	NO_MAP_LOCK_REQUIRED;
	ObjectRef *ref = checkobject(L, 1);

	v3f pos = checkFloatPos(L, 2);

	PlayerSAO* ps = getplayersao(ref);
	if (ps) {
		ps->addSpeed(pos);
		return 0;
	}

	LuaEntitySAO *co = getluaobject(ref);
	if (co == NULL) return 0;
	// Do it
	co->setVelocity(pos);
	return 0;
}

void PlayerDatabaseSQLite3::savePlayer(RemotePlayer *player)
{
	PlayerSAO* sao = player->getPlayerSAO();
	sanity_check(sao);

	const v3f &pos = sao->getBasePosition();
	// Begin save in brace is mandatory
	if (!playerDataExists(player->getName())) {
		beginSave();
		str_to_sqlite(m_stmt_player_add, 1, player->getName());
		double_to_sqlite(m_stmt_player_add, 2, sao->getPitch());
		double_to_sqlite(m_stmt_player_add, 3, sao->getYaw());
		double_to_sqlite(m_stmt_player_add, 4, pos.X);
		double_to_sqlite(m_stmt_player_add, 5, pos.Y);
		double_to_sqlite(m_stmt_player_add, 6, pos.Z);
		int64_to_sqlite(m_stmt_player_add, 7, sao->getHP());
		int64_to_sqlite(m_stmt_player_add, 8, sao->getBreath());

		sqlite3_vrfy(sqlite3_step(m_stmt_player_add), SQLITE_DONE);
		sqlite3_reset(m_stmt_player_add);
	} else {
		beginSave();
		double_to_sqlite(m_stmt_player_update, 1, sao->getPitch());
		double_to_sqlite(m_stmt_player_update, 2, sao->getYaw());
		double_to_sqlite(m_stmt_player_update, 3, pos.X);
		double_to_sqlite(m_stmt_player_update, 4, pos.Y);
		double_to_sqlite(m_stmt_player_update, 5, pos.Z);
		int64_to_sqlite(m_stmt_player_update, 6, sao->getHP());
		int64_to_sqlite(m_stmt_player_update, 7, sao->getBreath());
		str_to_sqlite(m_stmt_player_update, 8, player->getName());

		sqlite3_vrfy(sqlite3_step(m_stmt_player_update), SQLITE_DONE);
		sqlite3_reset(m_stmt_player_update);
	}

	// Write player inventories
	str_to_sqlite(m_stmt_player_remove_inventory, 1, player->getName());
	sqlite3_vrfy(sqlite3_step(m_stmt_player_remove_inventory), SQLITE_DONE);
	sqlite3_reset(m_stmt_player_remove_inventory);

	str_to_sqlite(m_stmt_player_remove_inventory_items, 1, player->getName());
	sqlite3_vrfy(sqlite3_step(m_stmt_player_remove_inventory_items), SQLITE_DONE);
	sqlite3_reset(m_stmt_player_remove_inventory_items);

	std::vector<const InventoryList*> inventory_lists = sao->getInventory()->getLists();
	for (u16 i = 0; i < inventory_lists.size(); i++) {
		const InventoryList* list = inventory_lists[i];

		str_to_sqlite(m_stmt_player_add_inventory, 1, player->getName());
		int_to_sqlite(m_stmt_player_add_inventory, 2, i);
		int_to_sqlite(m_stmt_player_add_inventory, 3, list->getWidth());
		str_to_sqlite(m_stmt_player_add_inventory, 4, list->getName());
		int_to_sqlite(m_stmt_player_add_inventory, 5, list->getSize());
		sqlite3_vrfy(sqlite3_step(m_stmt_player_add_inventory), SQLITE_DONE);
		sqlite3_reset(m_stmt_player_add_inventory);

		for (u32 j = 0; j < list->getSize(); j++) {
			std::ostringstream os;
			list->getItem(j).serialize(os);
			std::string itemStr = os.str();

			str_to_sqlite(m_stmt_player_add_inventory_items, 1, player->getName());
			int_to_sqlite(m_stmt_player_add_inventory_items, 2, i);
			int_to_sqlite(m_stmt_player_add_inventory_items, 3, j);
			str_to_sqlite(m_stmt_player_add_inventory_items, 4, itemStr);
			sqlite3_vrfy(sqlite3_step(m_stmt_player_add_inventory_items), SQLITE_DONE);
			sqlite3_reset(m_stmt_player_add_inventory_items);
		}
	}

	str_to_sqlite(m_stmt_player_metadata_remove, 1, player->getName());
	sqlite3_vrfy(sqlite3_step(m_stmt_player_metadata_remove), SQLITE_DONE);
	sqlite3_reset(m_stmt_player_metadata_remove);

	const PlayerAttributes &attrs = sao->getExtendedAttributes();
	for (PlayerAttributes::const_iterator it = attrs.begin(); it != attrs.end(); ++it) {
		str_to_sqlite(m_stmt_player_metadata_add, 1, player->getName());
		str_to_sqlite(m_stmt_player_metadata_add, 2, it->first);
		str_to_sqlite(m_stmt_player_metadata_add, 3, it->second);
		sqlite3_vrfy(sqlite3_step(m_stmt_player_metadata_add), SQLITE_DONE);
		sqlite3_reset(m_stmt_player_metadata_add);
	}

	endSave();
}

void RemoteClient::GetNextBlocks (
		ServerEnvironment *env,
		EmergeManager * emerge,
		float dtime,
		std::vector<PrioritySortedBlockTransfer> &dest)
{
	DSTACK(FUNCTION_NAME);


	// Increment timers
	m_nothing_to_send_pause_timer -= dtime;
	m_nearest_unsent_reset_timer += dtime;

	if(m_nothing_to_send_pause_timer >= 0)
		return;

	RemotePlayer *player = env->getPlayer(peer_id);
	// This can happen sometimes; clients and players are not in perfect sync.
	if (!player)
		return;

	PlayerSAO *sao = player->getPlayerSAO();
	if (!sao)
		return;

	// Won't send anything if already sending
	if(m_blocks_sending.size() >= g_settings->getU16
			("max_simultaneous_block_sends_per_client"))
	{
		//infostream<<"Not sending any blocks, Queue full."<<std::endl;
		return;
	}

	v3f playerpos = sao->getBasePosition();
	const v3f &playerspeed = player->getSpeed();
	v3f playerspeeddir(0,0,0);
	if(playerspeed.getLength() > 1.0*BS)
		playerspeeddir = playerspeed / playerspeed.getLength();
	// Predict to next block
	v3f playerpos_predicted = playerpos + playerspeeddir*MAP_BLOCKSIZE*BS;

	v3s16 center_nodepos = floatToInt(playerpos_predicted, BS);

	v3s16 center = getNodeBlockPos(center_nodepos);

	// Camera position and direction
	v3f camera_pos = sao->getEyePosition();
	v3f camera_dir = v3f(0,0,1);
	camera_dir.rotateYZBy(sao->getPitch());
	camera_dir.rotateXZBy(sao->getYaw());

	/*infostream<<"camera_dir=("<<camera_dir.X<<","<<camera_dir.Y<<","
			<<camera_dir.Z<<")"<<std::endl;*/

	/*
		Get the starting value of the block finder radius.
	*/

	if(m_last_center != center)
	{
		m_nearest_unsent_d = 0;
		m_last_center = center;
	}

	/*infostream<<"m_nearest_unsent_reset_timer="
			<<m_nearest_unsent_reset_timer<<std::endl;*/

	// Reset periodically to workaround for some bugs or stuff
	if(m_nearest_unsent_reset_timer > 20.0)
	{
		m_nearest_unsent_reset_timer = 0;
		m_nearest_unsent_d = 0;
		//infostream<<"Resetting m_nearest_unsent_d for "
		//		<<server->getPlayerName(peer_id)<<std::endl;
	}

	//s16 last_nearest_unsent_d = m_nearest_unsent_d;
	s16 d_start = m_nearest_unsent_d;

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

	u16 max_simul_sends_setting = g_settings->getU16
			("max_simultaneous_block_sends_per_client");
	u16 max_simul_sends_usually = max_simul_sends_setting;

	/*
		Check the time from last addNode/removeNode.

		Decrease send rate if player is building stuff.
	*/
	m_time_from_building += dtime;
	if(m_time_from_building < g_settings->getFloat(
				"full_block_send_enable_min_time_from_building"))
	{
		max_simul_sends_usually
			= LIMITED_MAX_SIMULTANEOUS_BLOCK_SENDS;
	}

	/*
		Number of blocks sending + number of blocks selected for sending
//.........这里部分代码省略.........

//.........这里部分代码省略.........
			Answer with a TOCLIENT_INIT
		*/
		{
			MSGPACK_PACKET_INIT(TOCLIENT_INIT, 4);
			PACK(TOCLIENT_INIT_DEPLOYED, deployed);
			PACK(TOCLIENT_INIT_SEED, m_env->getServerMap().getSeed());
			PACK(TOCLIENT_INIT_STEP, g_settings->getFloat("dedicated_server_step"));

			//if (player) //todo : remake me
			//	PACK(TOCLIENT_INIT_POS, player->getPosition());

			Settings params;
			m_emerge->params.save(params);
			PACK(TOCLIENT_INIT_MAP_PARAMS, params);

			// Send as reliable
			m_clients.send(peer_id, 0, buffer, true);
			m_clients.event(peer_id, CSE_Init);
		}

		return;
	}

	if(command == TOSERVER_INIT2)
	{
		verbosestream<<"Server: Got TOSERVER_INIT2 from "
				<<peer_id<<std::endl;

		m_clients.event(peer_id, CSE_GotInit2);
		u16 protocol_version = m_clients.getProtocolVersion(peer_id);


		///// begin compatibility code
		PlayerSAO* playersao = NULL;
		if (protocol_version <= 22) {
			playersao = StageTwoClientInit(peer_id);

			if (playersao == NULL) {
				errorstream
					<< "TOSERVER_INIT2 stage 2 client init failed for peer "
					<< peer_id << std::endl;
				return;
			}
		}
		///// end compatibility code

		/*
			Send some initialization data
		*/

		infostream<<"Server: Sending content to "
				<<getPlayerName(peer_id)<<std::endl;

		// Send player movement settings
		SendMovement(peer_id);

		// Send item definitions
		SendItemDef(peer_id, m_itemdef, protocol_version);

		// Send node definitions
		SendNodeDef(peer_id, m_nodedef, protocol_version);

		m_clients.event(peer_id, CSE_SetDefinitionsSent);

		// Send media announcement
		sendMediaAnnouncement(peer_id);

void PlayerDatabasePostgreSQL::savePlayer(RemotePlayer *player)
{
	PlayerSAO* sao = player->getPlayerSAO();
	if (!sao)
		return;

	verifyDatabase();

	v3f pos = sao->getBasePosition();
	std::string pitch = ftos(sao->getPitch());
	std::string yaw = ftos(sao->getYaw());
	std::string posx = ftos(pos.X);
	std::string posy = ftos(pos.Y);
	std::string posz = ftos(pos.Z);
	std::string hp = itos(sao->getHP());
	std::string breath = itos(sao->getBreath());
	const char *values[] = {
		player->getName(),
		pitch.c_str(),
		yaw.c_str(),
		posx.c_str(), posy.c_str(), posz.c_str(),
		hp.c_str(),
		breath.c_str()
	};

	const char* rmvalues[] = { player->getName() };
	beginSave();

	if (getPGVersion() < 90500) {
		if (!playerDataExists(player->getName()))
			execPrepared("create_player", 8, values, true, false);
		else
			execPrepared("update_player", 8, values, true, false);
	}
	else
		execPrepared("save_player", 8, values, true, false);

	// Write player inventories
	execPrepared("remove_player_inventories", 1, rmvalues);
	execPrepared("remove_player_inventory_items", 1, rmvalues);

	std::vector<const InventoryList*> inventory_lists = sao->getInventory()->getLists();
	for (u16 i = 0; i < inventory_lists.size(); i++) {
		const InventoryList* list = inventory_lists[i];
		const std::string &name = list->getName();
		std::string width = itos(list->getWidth()),
			inv_id = itos(i), lsize = itos(list->getSize());

		const char* inv_values[] = {
			player->getName(),
			inv_id.c_str(),
			width.c_str(),
			name.c_str(),
			lsize.c_str()
		};
		execPrepared("add_player_inventory", 5, inv_values);

		for (u32 j = 0; j < list->getSize(); j++) {
			std::ostringstream os;
			list->getItem(j).serialize(os);
			std::string itemStr = os.str(), slotId = itos(j);

			const char* invitem_values[] = {
				player->getName(),
				inv_id.c_str(),
				slotId.c_str(),
				itemStr.c_str()
			};
			execPrepared("add_player_inventory_item", 4, invitem_values);
		}
	}

	execPrepared("remove_player_metadata", 1, rmvalues);
	const StringMap &attrs = sao->getMeta().getStrings();
	for (const auto &attr : attrs) {
		const char *meta_values[] = {
			player->getName(),
			attr.first.c_str(),
			attr.second.c_str()
		};
		execPrepared("save_player_metadata", 3, meta_values);
	}
	sao->getMeta().setModified(false);
	endSave();
}