There's now a GUI that shows up when you interact with stairs down.

gui.cpp

@@ -30,6 +30,24 @@ using namespace std::chrono_literals;
 using namespace ftxui;
 using namespace components;
 
+void NextLevelUI::create_render() {
+  has_border = true;
+  $no_button = Button("NO, I'M NOT", []{ fmt::println("no don't go down"); });
+  $yes_button = Button("YES, I'M READY", []{ fmt::println("Going down."); });
+
+  $render = Renderer([&] {
+    return vflow({
+        paragraph($message) | border,
+        $no_button->Render(),
+        $yes_button->Render()
+      }) | flex;
+  });
+
+  set_renderer($render);
+  add($yes_button);
+  add($no_button);
+}
+
 void DeathUI::create_render() {
   has_border = true;
   $exit_button = Button("EXIT", []{ std::exit(0); });
@@ -211,6 +229,7 @@ void GUI::create_renderer() {
   $status_ui.create_render();
   $inventory_ui.create_render();
   $death_ui.create_render();
+  $next_level_ui.create_render();
 
   $active_panels = {&$map_view, &$status_ui};
 }
@@ -269,6 +288,7 @@ void GUI::handle_world_events() {
           auto& device = std::any_cast<Device&>(data);
           $status_ui.log(format("Up stairs has test {}.",
                 (bool)device.config["test"]));
+          toggle_modal(&$next_level_ui, $next_level);
        } break;
       default:
         $status_ui.log(format("INVALID EVENT! {},{}", evt, entity));
@@ -441,6 +461,10 @@ void GUI::render_scene() {
     draw_paused();
     $death_ui.render();
     $renderer.draw($death_ui);
+  } else if($next_level) {
+    draw_paused();
+    $next_level_ui.render();
+    $renderer.draw($next_level_ui);
   } else {
     $map_view.render();
     $renderer.draw($map_view);

gui.hpp

@@ -59,6 +59,19 @@ class DeathUI : public Panel {
   void create_render();
 };
 
+class NextLevelUI : public Panel {
+  public:
+  Component $render = nullptr;
+  Component $yes_button = nullptr;
+  Component $no_button = nullptr;
+  std::string $message = "Are you ready to go further down?";
+
+  NextLevelUI() :
+    Panel(INVENTORY_PIXEL_X, INVENTORY_PIXEL_Y, INVENTORY_WIDTH, INVENTORY_HEIGHT) {}
+
+  void create_render();
+};
+
 class InventoryUI : public Panel {
   public:
 
@@ -117,10 +130,12 @@ class GUI {
   MapViewUI $map_view;
   InventoryUI $inventory_ui;
   DeathUI $death_ui;
+  NextLevelUI $next_level_ui;
   Canvas $canvas;
   bool $inventory_open = false;
   bool $player_died = false;
   bool $modal_shown = false;
+  bool $next_level = false;
   Component $test_button;
   SoundManager $sounds;
   SFMLRender $renderer;

status.txt

@@ -1,5 +1,7 @@
 TODAY'S GOAL:
 
+* GUI needs to become a statemachine now.  Too many panels open at too many times.
+* Panels should be able to take a width/height and center theirself for me
 * Linux on Arch catch2 fails with catch2-main missing and xwayland displays weird when small (gentoo plasma6 wayland).
 * Position needs three types of collision:  full, false, and none.
 * Stairs \u2ac5 for stairs down, and \u2259 stairs up