model center and wait for hatari

demo.sh

@@ -83,6 +83,11 @@ fake_zip "$ROOT_DIR/E/Racing/Pole Position.zip"
 fake_zip "$ROOT_DIR/E/Racing/Out Run.zip"
 fake_zip "$ROOT_DIR/E/Racing/Daytona USA.zip"
 
+# === Folders G-Z: empty placeholder folders ===
+for letter in {G..Z}; do
+    mkdir -p "$ROOT_DIR/$letter"
+done
+
 # --- PATCH layer (overlay/additions) ---
 echo "Creating patch layer..."
 

src/MarcerGameDvdLauncher/HatariLauncher.cs

@@ -55,11 +55,10 @@ namespace MarcerGameDvdLauncher
                     UseShellExecute = false,
                     WorkingDirectory = Directory.GetCurrentDirectory()
                 };
-                System.Diagnostics.Process.Start(psi);
-                // Show a modal indicating the emulator was started and wait until
-                // the user releases the Return key before clearing the modal. This
-                // prevents accidental key repeats from triggering other actions.
-                ProgramHelpers.ShowModalUntilReturnReleased("Hatari started. Release Return to continue...");
+                var process = System.Diagnostics.Process.Start(psi);
+                // Show a modal indicating the emulator is running and wait until
+                // the process has exited before clearing the modal.
+                ProgramHelpers.ShowModalUntilProcessExited(process, "Hatari is running...");
             }
             catch (Exception ex)
             {

src/MarcerGameDvdLauncher/InputController.cs

@@ -171,6 +171,8 @@ namespace MarcerGameDvdLauncher
                             {
                                 errorService.ShowError(ex.Message);
                             }
+                            // Redraw menu after Hatari has exited
+                            DrawMenu(availableLines);
                         }
                         // flush input to avoid leftover key events after an enter/navigation
                         ProgramHelpers.FlushInputBuffer();

src/MarcerGameDvdLauncher/ProgramHelpers.cs

@@ -53,37 +53,36 @@ namespace MarcerGameDvdLauncher
         [DllImport("user32.dll")]
         private static extern short GetAsyncKeyState(int vKey);
 
-        // Shows a simple modal message on the reserved last console line and
-        // blocks until the Return key is physically released. The message is
-        // then removed and the method returns. This is designed to be a
-        // lightweight modal for the console UI and uses the last console line
-        // which the application reserves for transient messages.
-        public static void ShowModalUntilReturnReleased(string? message)
+        // Shows a simple modal message in the center of the console and
+        // blocks until the given process has exited. The message is then
+        // removed and the method returns.
+        public static void ShowModalUntilProcessExited(System.Diagnostics.Process? process, string? message)
         {
             try
             {
-                var lastRow = AvailableLines;
-                var width = Console.WindowWidth;
+                int width = Console.WindowWidth;
+                int height = Console.WindowHeight;
+                int centerRow = height / 2;
+
                 var text = message ?? string.Empty;
-                if (text.Length > width) text = text.Substring(0, Math.Max(0, width - 3)) + "...";
-                var padding = Math.Max(0, width - text.Length);
-                var line = text + new string(' ', padding);
+                if (text.Length > width - 4) text = text.Substring(0, Math.Max(0, width - 7)) + "...";
+                int leftPad = Math.Max(0, (width - text.Length) / 2);
+                var line = new string(' ', leftPad) + text;
 
                 Console.BackgroundColor = ConsoleColor.DarkGray;
                 Console.ForegroundColor = ConsoleColor.White;
-                try { Console.SetCursorPosition(0, lastRow); } catch { }
-                try { Console.Write(line); } catch { }
+                try { Console.SetCursorPosition(0, centerRow); } catch { }
+                try { Console.Write(line.PadRight(width)); } catch { }
                 Console.ResetColor();
 
-                // Wait until Return key is not pressed
-                // GetAsyncKeyState returns a short where the high-order bit is set when key is down
-                while ((GetAsyncKeyState(VK_RETURN) & 0x8000) != 0)
+                // Wait until the external process has exited
+                while (process != null && !process.HasExited)
                 {
-                    Thread.Sleep(10);
+                    Thread.Sleep(100);
                 }
 
                 // Clear the line
-                try { Console.SetCursorPosition(0, lastRow); } catch { }
+                try { Console.SetCursorPosition(0, centerRow); } catch { }
                 try { Console.Write(new string(' ', width)); } catch { }
             }
             catch