Add "simple singleplayer mode"; Fix a number of GUI things

src/game.cpp

@@ -658,7 +658,8 @@ void the_game(
 	std::wstring &error_message,
 	std::string configpath,
 	ChatBackend &chat_backend,
-	const SubgameSpec &gamespec // Used for local game
+	const SubgameSpec &gamespec, // Used for local game,
+	bool simple_singleplayer_mode
 )
 {
 	video::IVideoDriver* driver = device->getVideoDriver();
@@ -709,7 +710,8 @@ void the_game(
 	if(address == ""){
 		draw_load_screen(L"Creating server...", driver, font);
 		infostream<<"Creating server"<<std::endl;
-		server = new Server(map_dir, configpath, gamespec);
+		server = new Server(map_dir, configpath, gamespec,
+				simple_singleplayer_mode);
 		server->start(port);
 	}
 
@@ -1357,7 +1359,7 @@ void the_game(
 					<<"Launching pause menu"<<std::endl;
 			// It will delete itself by itself
 			(new GUIPauseMenu(guienv, guiroot, -1, g_gamecallback,
-					&g_menumgr))->drop();
+					&g_menumgr, simple_singleplayer_mode))->drop();
 
 			// Move mouse cursor on top of the disconnect button
 			input->setMousePos(displaycenter.X, displaycenter.Y+25);

src/game.h

@@ -138,7 +138,8 @@ void the_game(
 	std::wstring &error_message,
 	std::string configpath,
 	ChatBackend &chat_backend,
-	const SubgameSpec &gamespec // Used for local game
+	const SubgameSpec &gamespec, // Used for local game
+	bool simple_singleplayer_mode
 );
 
 #endif

src/guiMainMenu.cpp

@@ -720,15 +720,13 @@ void GUIMainMenu::readInput(MainMenuData *dst)
 		if(e != NULL && e->getType() == gui::EGUIET_TAB_CONTROL)
 			dst->selected_tab = ((gui::IGUITabControl*)e)->getActiveTab();
 	}
-	if(getTab() == TAB_SINGLEPLAYER)
+	if(dst->selected_tab == TAB_SINGLEPLAYER)
 	{
-		dst->name = L"singleplayer";
-		dst->password = L"";
-		dst->address = L"";
-		dst->port = 30000;
+		dst->simple_singleplayer_mode = true;
 	}
 	else
 	{
+		dst->simple_singleplayer_mode = false;
 		{
 			gui::IGUIElement *e = getElementFromId(GUI_ID_NAME_INPUT);
 			if(e != NULL)

src/guiMainMenu.h

@@ -45,6 +45,7 @@ struct MainMenuData
 	bool creative_mode;
 	bool enable_damage;
 	int selected_world;
+	bool simple_singleplayer_mode;
 	// Actions
 	WorldSpec delete_world_spec;
 	std::wstring create_world_name;
@@ -62,7 +63,8 @@ struct MainMenuData
 		// Server opts
 		creative_mode(false),
 		enable_damage(false),
-		selected_world(0)
+		selected_world(0),
+		simple_singleplayer_mode(false)
 	{}
 };
 

src/guiPauseMenu.cpp

@@ -34,10 +34,12 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 GUIPauseMenu::GUIPauseMenu(gui::IGUIEnvironment* env,
 		gui::IGUIElement* parent, s32 id,
 		IGameCallback *gamecallback,
-		IMenuManager *menumgr):
-	GUIModalMenu(env, parent, id, menumgr)
+		IMenuManager *menumgr,
+		bool simple_singleplayer_mode):
+	GUIModalMenu(env, parent, id, menumgr),
+	m_gamecallback(gamecallback),
+	m_simple_singleplayer_mode(simple_singleplayer_mode)
 {
-	m_gamecallback = gamecallback;
 }
 
 GUIPauseMenu::~GUIPauseMenu()
@@ -106,7 +108,7 @@ void GUIPauseMenu::regenerateGui(v2u32 screensize)
 	*/
 	const s32 btn_height = 30;
 	const s32 btn_gap = 20;
-	const s32 btn_num = 4;
+	const s32 btn_num = m_simple_singleplayer_mode ? 3 : 4;
 	s32 btn_y = size.Y/2-((btn_num*btn_height+(btn_num-1)*btn_gap))/2;
 	changeCtype("");
 	{
@@ -116,6 +118,8 @@ void GUIPauseMenu::regenerateGui(v2u32 screensize)
 			wgettext("Continue"));
 	}
 	btn_y += btn_height + btn_gap;
+	if(!m_simple_singleplayer_mode)
+	{
 		{
 			core::rect<s32> rect(0, 0, 140, btn_height);
 			rect = rect + v2s32(size.X/2-140/2, btn_y);
@@ -123,11 +127,12 @@ void GUIPauseMenu::regenerateGui(v2u32 screensize)
 				wgettext("Change Password"));
 		}
 		btn_y += btn_height + btn_gap;
+	}
 	{
 		core::rect<s32> rect(0, 0, 140, btn_height);
 		rect = rect + v2s32(size.X/2-140/2, btn_y);
 		Environment->addButton(rect, this, 260,
-			wgettext("Disconnect"));
+			wgettext("Exit to Menu"));
 	}
 	btn_y += btn_height + btn_gap;
 	{

src/guiPauseMenu.h

@@ -37,7 +37,8 @@ public:
 	GUIPauseMenu(gui::IGUIEnvironment* env,
 			gui::IGUIElement* parent, s32 id,
 			IGameCallback *gamecallback,
-			IMenuManager *menumgr);
+			IMenuManager *menumgr,
+			bool simple_singleplayer_mode);
 	~GUIPauseMenu();
 	
 	void removeChildren();
@@ -52,6 +53,7 @@ public:
 	
 private:
 	IGameCallback *m_gamecallback;
+	bool m_simple_singleplayer_mode;
 };
 
 #endif

src/main.cpp

@@ -1063,7 +1063,7 @@ int main(int argc, char *argv[])
 		infostream<<"Using gamespec \""<<gamespec.id<<"\""<<std::endl;
 
 		// Create server
-		Server server(world_path, configpath, gamespec);
+		Server server(world_path, configpath, gamespec, false);
 		server.start(port);
 		
 		// Run server
@@ -1253,6 +1253,13 @@ int main(int argc, char *argv[])
 			
 			SubgameSpec gamespec;
 			WorldSpec worldspec;
+			bool simple_singleplayer_mode = false;
+
+			// These are set up based on the menu and other things
+			std::string current_playername = "inv£lid";
+			std::string current_password = "";
+			std::string current_address = "does-not-exist";
+			int current_port = 0;
 
 			/*
 				Out-of-game menu loop.
@@ -1377,6 +1384,7 @@ int main(int argc, char *argv[])
 				int newport = stoi(wide_to_narrow(menudata.port));
 				if(newport != 0)
 					port = newport;
+				simple_singleplayer_mode = menudata.simple_singleplayer_mode;
 				// Save settings
 				g_settings->setS32("selected_mainmenu_tab", menudata.selected_tab);
 				g_settings->set("new_style_leaves", itos(menudata.fancy_trees));
@@ -1391,14 +1399,24 @@ int main(int argc, char *argv[])
 				if(menudata.selected_world != -1)
 					g_settings->set("selected_world_path",
 							worldspecs[menudata.selected_world].path);
-				/*// Update configuration file
-				if(configpath != "")
-					g_settings->updateConfigFile(configpath.c_str());*/
 				
 				// Break out of menu-game loop to shut down cleanly
 				if(device->run() == false || kill == true)
 					break;
 				
+				current_playername = playername;
+				current_password = password;
+				current_address = address;
+				current_port = port;
+
+				// If using simple singleplayer mode, override
+				if(simple_singleplayer_mode){
+					current_playername = "singleplayer";
+					current_password = "";
+					current_address = "";
+					current_port = 30011;
+				}
+				
 				// Set world path to selected one
 				if(menudata.selected_world != -1){
 					worldspec = worldspecs[menudata.selected_world];
@@ -1435,7 +1453,7 @@ int main(int argc, char *argv[])
 				}
 
 				// If local game
-				if(address == "")
+				if(current_address == "")
 				{
 					if(menudata.selected_world == -1){
 						error_message = L"No world selected and no address "
@@ -1485,14 +1503,15 @@ int main(int argc, char *argv[])
 				device,
 				font,
 				worldspec.path,
-				playername,
-				password,
-				address,
-				port,
+				current_playername,
+				current_password,
+				current_address,
+				current_port,
 				error_message,
 				configpath,
 				chat_backend,
-				gamespec
+				gamespec,
+				simple_singleplayer_mode
 			);
 
 		} //try

src/server.cpp

@@ -836,11 +836,13 @@ void PlayerInfo::PrintLine(std::ostream *s)
 Server::Server(
 		const std::string &path_world,
 		const std::string &path_config,
-		const SubgameSpec &gamespec
+		const SubgameSpec &gamespec,
+		bool simple_singleplayer_mode
 	):
 	m_path_world(path_world),
 	m_path_config(path_config),
 	m_gamespec(gamespec),
+	m_simple_singleplayer_mode(simple_singleplayer_mode),
 	m_async_fatal_error(""),
 	m_env(NULL),
 	m_con(PROTOCOL_ID, 512, CONNECTION_TIMEOUT, this),
@@ -880,7 +882,11 @@ Server::Server(
 	// share/server
 	m_path_share = porting::path_share + DIR_DELIM + "server";
 
-	infostream<<"Server created for gameid \""<<m_gamespec.id<<"\""<<std::endl;
+	infostream<<"Server created for gameid \""<<m_gamespec.id<<"\"";
+	if(m_simple_singleplayer_mode)
+		infostream<<" in simple singleplayer mode"<<std::endl;
+	else
+		infostream<<std::endl;
 	infostream<<"- world:  "<<m_path_world<<std::endl;
 	infostream<<"- config: "<<m_path_config<<std::endl;
 	infostream<<"- game:   "<<m_gamespec.path<<std::endl;
@@ -2106,6 +2112,16 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 			return;
 		}
 
+		// Do not allow multiple players in simple singleplayer mode.
+		// This isn't a perfect way to do it, but will suffice for now.
+		if(m_simple_singleplayer_mode && m_clients.size() > 1){
+			infostream<<"Server: Not allowing another client to connect in"
+					<<" simple singleplayer mode"<<std::endl;
+			SendAccessDenied(m_con, peer_id,
+					L"Running in simple singleplayer mode.");
+			return;
+		}
+		
 		// Enforce user limit.
 		// Don't enforce for users that have some admin right
 		if(m_clients.size() >= g_settings->getU16("max_users") &&
@@ -2204,6 +2220,9 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 			m_con.Send(peer_id, 0, data, true);
 		}
 		
+		// Note things in chat if not in simple singleplayer mode
+		if(!m_simple_singleplayer_mode)
+		{
 			// Send information about server to player in chat
 			SendChatMessage(peer_id, getStatusString());
 			
@@ -2220,6 +2239,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
 				message += L" joined game";
 				BroadcastChatMessage(message);
 			}
+		}
 		
 		// Warnings about protocol version can be issued here
 		if(getClient(peer_id)->net_proto_version < PROTOCOL_VERSION)

src/server.h

@@ -410,7 +410,8 @@ public:
 	Server(
 		const std::string &path_world,
 		const std::string &path_config,
-		const SubgameSpec &gamespec
+		const SubgameSpec &gamespec,
+		bool simple_singleplayer_mode
 	);
 	~Server();
 	void start(unsigned short port);
@@ -659,6 +660,9 @@ private:
 	std::string m_path_config;
 	// Subgame specification
 	SubgameSpec m_gamespec;
+	// If true, do not allow multiple players and hide some multiplayer
+	// functionality
+	bool m_simple_singleplayer_mode;
 
 	// Equivalent of /usr/share/minetest/server
 	std::string m_path_share;