Add confirmation on new player registration (#6849)

* Attempt to add registration confirmation

Using SRP auth mechanism, if server sent AUTH_MECHANISM_FIRST_SRP that means the player isn't exist.
Also tell player about the server and chosen username.
Local game has localhost as IP address of the server.
Add RenderingEngine::draw_menu_scene() to draw GUI and clouds background.
aborted -> connection_aborted

* Rewrite information message text

Client::promptConfirmRegister() -> Client::promptConfirmRegistration()

1 files changed, 30 insertions, 12 deletions

diff --git a/src/game.cpp b/src/game.cpp
index 1ab360d3c..32ec6b73e 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -41,6 +41,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "filesys.h"
 #include "gettext.h"
 #include "gui/guiChatConsole.h"
+#include "gui/guiConfirmRegistration.h"
 #include "gui/guiFormSpecMenu.h"
 #include "gui/guiKeyChangeMenu.h"
 #include "gui/guiPasswordChange.h"
@@ -1302,6 +1303,7 @@ private:
 
 	EventManager *eventmgr = nullptr;
 	QuicktuneShortcutter *quicktune = nullptr;
+	bool registration_confirmation_shown = false;
 
 	std::unique_ptr<GameUI> m_game_ui;
 	GUIChatConsole *gui_chat_console = nullptr; // Free using ->Drop()
@@ -1900,10 +1902,10 @@ bool Game::initGui()
 
 bool Game::connectToServer(const std::string &playername,
 		const std::string &password, std::string *address, u16 port,
-		bool *connect_ok, bool *aborted)
+		bool *connect_ok, bool *connection_aborted)
 {
 	*connect_ok = false;	// Let's not be overly optimistic
-	*aborted = false;
+	*connection_aborted = false;
 	bool local_server_mode = false;
 
 	showOverlayMessage("Resolving address...", 0, 15);
@@ -1946,6 +1948,8 @@ bool Game::connectToServer(const std::string &playername,
 	if (!client)
 		return false;
 
+	client->m_simple_singleplayer_mode = simple_singleplayer_mode;
+
 	infostream << "Connecting to server at ";
 	connect_address.print(&infostream);
 	infostream << std::endl;
@@ -1985,6 +1989,9 @@ bool Game::connectToServer(const std::string &playername,
 			}
 
 			// Break conditions
+			if (*connection_aborted)
+				break;
+
 			if (client->accessDenied()) {
 				*error_message = "Access denied. Reason: "
 						+ client->accessDeniedReason();
@@ -1994,21 +2001,32 @@ bool Game::connectToServer(const std::string &playername,
 			}
 
 			if (wasKeyDown(KeyType::ESC) || input->wasKeyDown(CancelKey)) {
-				*aborted = true;
+				*connection_aborted = true;
 				infostream << "Connect aborted [Escape]" << std::endl;
 				break;
 			}
 
-			wait_time += dtime;
-			// Only time out if we aren't waiting for the server we started
-			if (!address->empty() && wait_time > 10) {
-				*error_message = "Connection timed out.";
-				errorstream << *error_message << std::endl;
-				break;
-			}
+			if (client->m_is_registration_confirmation_state) {
+				if (registration_confirmation_shown) {
+					// Keep drawing the GUI
+					RenderingEngine::draw_menu_scene(guienv, dtime, true);
+				} else {
+					registration_confirmation_shown = true;
+					(new GUIConfirmRegistration(guienv, guienv->getRootGUIElement(), -1,
+						   &g_menumgr, client, playername, password, *address, connection_aborted))->drop();
+				}
+			} else {
+				wait_time += dtime;
+				// Only time out if we aren't waiting for the server we started
+				if (!address->empty() && wait_time > 10) {
+					*error_message = "Connection timed out.";
+					errorstream << *error_message << std::endl;
+					break;
+				}
 
-			// Update status
-			showOverlayMessage("Connecting to server...", dtime, 20);
+				// Update status
+				showOverlayMessage("Connecting to server...", dtime, 20);
+			}
 		}
 	} catch (con::PeerNotFoundException &e) {
 		// TODO: Should something be done here? At least an info/error