App,GUI: Proper shutdown of application.

src/App/gameServer.cpp

@@ -31,13 +31,17 @@ void GameServer::start() {
 }
 
 void GameServer::stop() {
+	if (m_gameThread.joinable()) {
+		m_game.pushEvent(ShutdownEvent{});
+	}
+
 	m_server.stop();
 	m_game.unsubscribeState(this);
 
 	if (m_gameThread.joinable()) {
-		m_game.pushEvent(ShutdownEvent{});
 		m_gameThread.join();
 	}
+	m_players.clear();
 }
 
 void GameServer::onClientConnected(gameNet::SessionId sessionId, gameNet::Seat seat) {

src/App/include/app/sessionManager.hpp

@@ -35,6 +35,7 @@ class SessionManager : public gameNet::IClientHandler {
 	void connect(const std::string& hostIp);
 	void host(unsigned boardSize);
 	void disconnect();
+	void shutdown();
 
 	// Setters
 	void tryPlace(unsigned x, unsigned y);

src/App/sessionManager.cpp

@@ -82,6 +82,22 @@ void SessionManager::disconnect() {
 	m_eventHub.signal(AS_StateChange);
 }
 
+void SessionManager::shutdown() {
+	if (m_localServer) {
+		m_localServer->stop();
+		m_localServer.reset();
+	}
+	m_network.disconnect();
+
+	{
+		std::lock_guard<std::mutex> lock(m_stateMutex);
+		m_position.reset(9u);
+		m_expectedMessageId = 1u;
+		m_chatHistory.clear();
+		m_pendingChat.clear();
+	}
+}
+
 
 void SessionManager::tryPlace(unsigned x, unsigned y) {
 	m_network.send(gameNet::ClientPutStone{.c = {x, y}});

src/gui/MainWindow.cpp

@@ -12,6 +12,7 @@ MainWindow::MainWindow(QWidget* parent) : QMainWindow(parent) {
 	// Setup Window
 	setWindowTitle("Go Game");
 	setWindowFlags(windowFlags() | Qt::Tool | Qt::WindowStaysOnTopHint);
+	setAttribute(Qt::WA_QuitOnClose, true);
 	buildLayout();
 }
 
@@ -49,6 +50,7 @@ void MainWindow::openHostDialog() {
 }
 
 void MainWindow::closeEvent(QCloseEvent* event) {
+	m_game.shutdown();
 	QMainWindow::closeEvent(event);
 }