implement escape menu

src/ui/MainWindow.cpp

@@ -52,6 +52,9 @@ MainWindow::MainWindow(Simulation* sim, const GameConfig* config,
     connect(m_gameWorldView, SIGNAL(gameOver()),
             this, SLOT(onGameOver()));
 
+    connect(m_gameWorldView, SIGNAL(escapeMenuRequested()),
+            this, SLOT(onEscapeMenuRequested()));
+
     // Signals: build grid → game world
     connect(m_buildButtonGrid, SIGNAL(buildingTypeSelected(BuildingType)),
             m_gameWorldView, SLOT(enterBuilderMode(BuildingType)));
@@ -95,6 +98,35 @@ void MainWindow::onStateUpdated(Tick /*tick*/, int blocks, double /*speed*/)
     m_buildButtonGrid->updateAffordability(blocks);
 }
 
+void MainWindow::onEscapeMenuRequested()
+{
+    const double prevSpeed = m_gameWorldView->gameSpeed();
+    m_gameWorldView->setGameSpeed(0.0);
+
+    QMessageBox box(this);
+    box.setWindowTitle("Paused");
+    QPushButton* continueBtn = box.addButton("Continue", QMessageBox::AcceptRole);
+    QPushButton* restartBtn  = box.addButton("Restart",  QMessageBox::ResetRole);
+    QPushButton* quitBtn     = box.addButton("Quit",     QMessageBox::DestructiveRole);
+    box.setEscapeButton(continueBtn);
+    box.exec();
+
+    QAbstractButton* clicked = box.clickedButton();
+    if (clicked == restartBtn)
+    {
+        m_sim->reset();
+        m_gameWorldView->resetForNewGame();
+    }
+    else if (clicked == quitBtn)
+    {
+        close();
+    }
+    else
+    {
+        m_gameWorldView->setGameSpeed(prevSpeed);
+    }
+}
+
 void MainWindow::onGameOver()
 {
     const Tick tick = m_sim->currentTick();