Fix local map saving when joining a local server from the server tab

Disables local map saving for all local server types

See: https://github.com/minetest/minetest/issues/2024

src/client.cpp

@@ -219,7 +219,6 @@ Client::Client(
 		IrrlichtDevice *device,
 		const char *playername,
 		std::string password,
-		bool is_simple_singleplayer_game,
 		MapDrawControl &control,
 		IWritableTextureSource *tsrc,
 		IWritableShaderSource *shsrc,
@@ -283,34 +282,6 @@ Client::Client(
 		m_env.addPlayer(player);
 	}
 
-	if (g_settings->getBool("enable_local_map_saving")
-			&& !is_simple_singleplayer_game) {
-		const std::string world_path = porting::path_user + DIR_DELIM + "worlds"
-				+ DIR_DELIM + "server_" + g_settings->get("address")
-				+ "_" + g_settings->get("remote_port");
-
-		SubgameSpec gamespec;
-		if (!getWorldExists(world_path)) {
-			gamespec = findSubgame(g_settings->get("default_game"));
-			if (!gamespec.isValid())
-				gamespec = findSubgame("minimal");
-		} else {
-			std::string world_gameid = getWorldGameId(world_path, false);
-			gamespec = findWorldSubgame(world_path);
-		}
-		if (!gamespec.isValid()) {
-			errorstream << "Couldn't find subgame for local map saving." << std::endl;
-			return;
-		}
-
-		localserver = new Server(world_path, gamespec, false, false);
-		localdb = new Database_SQLite3(&(ServerMap&)localserver->getMap(), world_path);
-		localdb->beginSave();
-		actionstream << "Local map saving started, map will be saved at '" << world_path << "'" << std::endl;
-	} else {
-		localdb = NULL;
-	}
-
 	m_cache_smooth_lighting = g_settings->getBool("smooth_lighting");
 }
 
@@ -321,6 +292,7 @@ void Client::Stop()
 	if (localdb != NULL) {
 		actionstream << "Local map saving ended" << std::endl;
 		localdb->endSave();
+		delete localserver;
 	}
 }
 
@@ -363,9 +335,14 @@ Client::~Client()
 	}
 }
 
-void Client::connect(Address address)
+void Client::connect(Address address,
+		const std::string &address_name,
+		bool is_local_server)
 {
 	DSTACK(__FUNCTION_NAME);
+
+	initLocalMapSaving(address, address_name, is_local_server);
+
 	m_con.SetTimeoutMs(0);
 	m_con.Connect(address);
 }
@@ -964,6 +941,41 @@ void Client::received_media()
 			<<std::endl;
 }
 
+void Client::initLocalMapSaving(const Address &address,
+		const std::string &hostname,
+		bool is_local_server)
+{
+	localdb = NULL;
+
+	if (!g_settings->getBool("enable_local_map_saving") || is_local_server)
+		return;
+
+	const std::string world_path = porting::path_user
+		+ DIR_DELIM + "worlds"
+		+ DIR_DELIM + "server_"
+		+ hostname + "_" + to_string(address.getPort());
+
+	SubgameSpec gamespec;
+
+	if (!getWorldExists(world_path)) {
+		gamespec = findSubgame(g_settings->get("default_game"));
+		if (!gamespec.isValid())
+			gamespec = findSubgame("minimal");
+	} else {
+		gamespec = findWorldSubgame(world_path);
+	}
+
+	if (!gamespec.isValid()) {
+		errorstream << "Couldn't find subgame for local map saving." << std::endl;
+		return;
+	}
+
+	localserver = new Server(world_path, gamespec, false, false);
+	localdb = new Database_SQLite3(&(ServerMap&)localserver->getMap(), world_path);
+	localdb->beginSave();
+	actionstream << "Local map saving started, map will be saved at '" << world_path << "'" << std::endl;
+}
+
 void Client::ReceiveAll()
 {
 	DSTACK(__FUNCTION_NAME);

src/client.h

@@ -305,7 +305,6 @@ public:
 			IrrlichtDevice *device,
 			const char *playername,
 			std::string password,
-			bool is_simple_singleplayer_game,
 			MapDrawControl &control,
 			IWritableTextureSource *tsrc,
 			IWritableShaderSource *shsrc,
@@ -325,11 +324,14 @@ public:
 
 
 	bool isShutdown();
+
 	/*
 		The name of the local player should already be set when
 		calling this, as it is sent in the initialization.
 	*/
-	void connect(Address address);
+	void connect(Address address,
+			const std::string &address_name,
+			bool is_local_server);
 
 	/*
 		Stuff that references the environment is valid only as
@@ -477,6 +479,10 @@ private:
 	void peerAdded(con::Peer *peer);
 	void deletingPeer(con::Peer *peer, bool timeout);
 
+	void initLocalMapSaving(const Address &address,
+			const std::string &hostname,
+			bool is_local_server);
+
 	void ReceiveAll();
 	void Receive();
 

src/game.cpp

@@ -1923,7 +1923,6 @@ bool Game::createSingleplayerServer(const std::string map_dir,
 
 	try {
 		bind_addr.Resolve(bind_str.c_str());
-		*address = bind_str;
 	} catch (ResolveError &e) {
 		infostream << "Resolving bind address \"" << bind_str
 			   << "\" failed: " << e.what()
@@ -2121,6 +2120,7 @@ bool Game::connectToServer(const std::string &playername,
 {
 	*connect_ok = false;	// Let's not be overly optimistic
 	*aborted = false;
+	bool local_server_mode = false;
 
 	showOverlayMessage("Resolving address...", 0, 15);
 
@@ -2138,6 +2138,7 @@ bool Game::connectToServer(const std::string &playername,
 			} else {
 				connect_address.setAddress(127, 0, 0, 1);
 			}
+			local_server_mode = true;
 		}
 	} catch (ResolveError &e) {
 		*error_message = L"Couldn't resolve address: " + narrow_to_wide(e.what());
@@ -2154,7 +2155,7 @@ bool Game::connectToServer(const std::string &playername,
 	}
 
 	client = new Client(device,
-			playername.c_str(), password, simple_singleplayer_mode,
+			playername.c_str(), password,
 			*draw_control, texture_src, shader_src,
 			itemdef_manager, nodedef_manager, sound, eventmgr,
 			connect_address.isIPv6());
@@ -2168,7 +2169,8 @@ bool Game::connectToServer(const std::string &playername,
 	connect_address.print(&infostream);
 	infostream << std::endl;
 
-	client->connect(connect_address);
+	client->connect(connect_address, *address,
+		simple_singleplayer_mode || local_server_mode);
 
 	/*
 		Wait for server to accept connection