From 3d66622772e66154b7624957a27f9be54c4c7c28 Mon Sep 17 00:00:00 2001 From: SmallJoker Date: Tue, 4 Dec 2018 20:37:48 +0100 Subject: Send only changed node metadata to clients instead of whole mapblock (#5268) Includes newer style changes and fixes by est31 Improve the block position de-serialization Add type NodeMetadataMap --- src/network/clientpackethandler.cpp | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) (limited to 'src/network/clientpackethandler.cpp') diff --git a/src/network/clientpackethandler.cpp b/src/network/clientpackethandler.cpp index 1be7d4eeb..0dca4aff4 100644 --- a/src/network/clientpackethandler.cpp +++ b/src/network/clientpackethandler.cpp @@ -243,6 +243,33 @@ void Client::handleCommand_AddNode(NetworkPacket* pkt) addNode(p, n, remove_metadata); } + +void Client::handleCommand_NodemetaChanged(NetworkPacket *pkt) +{ + if (pkt->getSize() < 1) + return; + + std::istringstream is(pkt->readLongString(), std::ios::binary); + std::stringstream sstr; + decompressZlib(is, sstr); + + NodeMetadataList meta_updates_list(false); + meta_updates_list.deSerialize(sstr, m_itemdef, true); + + Map &map = m_env.getMap(); + for (NodeMetadataMap::const_iterator i = meta_updates_list.begin(); + i != meta_updates_list.end(); ++i) { + v3s16 pos = i->first; + + if (map.isValidPosition(pos) && + map.setNodeMetadata(pos, i->second)) + continue; // Prevent from deleting metadata + + // Meta couldn't be set, unused metadata + delete i->second; + } +} + void Client::handleCommand_BlockData(NetworkPacket* pkt) { // Ignore too small packet -- cgit v1.2.3