Only keep players loaded while they're connected

1 files changed, 67 insertions, 0 deletions

diff --git a/src/player.cpp b/src/player.cpp
index 4dadf26d0..78ba17e89 100644
--- a/src/player.cpp
+++ b/src/player.cpp
@@ -283,6 +283,72 @@ void Player::clearHud()
 	}
 }
 
+
+void RemotePlayer::save(const std::string &savedir)
+{
+	bool newplayer = true;
+
+	/* We have to iterate through all files in the players directory
+	 * and check their player names because some file systems are not
+	 * case-sensitive and player names are case-sensitive.
+	 */
+
+	// A player to deserialize files into to check their names
+	RemotePlayer testplayer(m_gamedef);
+
+	std::vector<fs::DirListNode> player_files = fs::GetDirListing(savedir);
+	for(u32 i = 0; i < player_files.size(); i++) {
+		if (player_files[i].dir || player_files[i].name[0] == '.') {
+			continue;
+		}
+
+		// Full path to this file
+		std::string path = savedir + "/" + player_files[i].name;
+
+		// Open file and deserialize
+		std::ifstream is(path.c_str(), std::ios_base::binary);
+		if (!is.good()) {
+			infostream << "Failed to read " << path << std::endl;
+			continue;
+		}
+		testplayer.deSerialize(is, player_files[i].name);
+
+		if (strcmp(testplayer.getName(), m_name) == 0) {
+			// Open file and serialize
+			std::ostringstream ss(std::ios_base::binary);
+			serialize(ss);
+			if (!fs::safeWriteToFile(path, ss.str())) {
+				infostream << "Failed to write " << path << std::endl;
+			}
+			newplayer = false;
+			break;
+		}
+	}
+
+	if (newplayer) {
+		bool found = false;
+		std::string path = savedir + "/" + m_name;
+		for (u32 i = 0; i < 1000; i++) {
+			if (!fs::PathExists(path)) {
+				found = true;
+				break;
+			}
+			path = savedir + "/" + m_name + itos(i);
+		}
+		if (!found) {
+			infostream << "Didn't find free file for player " << m_name << std::endl;
+			return;
+		}
+
+		// Open file and serialize
+		std::ostringstream ss(std::ios_base::binary);
+		serialize(ss);
+		if (!fs::safeWriteToFile(path, ss.str())) {
+			infostream << "Failed to write " << path << std::endl;
+		}
+	}
+}
+
 /*
 	RemotePlayer
 */
@@ -292,3 +358,4 @@ void RemotePlayer::setPosition(const v3f &position)
 	if(m_sao)
 		m_sao->setBasePosition(position);
 }
+