Separate out the major UIs to get ready for their development, and enable debug button.

combat_ui.cpp

@@ -0,0 +1,35 @@
+#include "combat_ui.hpp"
+#include <ftxui/dom/node.hpp>      // for Render
+#include <ftxui/screen/box.hpp>    // for ftxui
+#include <ftxui/component/loop.hpp>
+#include <ftxui/screen/color.hpp>
+#include <ftxui/dom/table.hpp>
+#include "constants.hpp"
+#include "color.hpp"
+
+namespace gui {
+  using namespace ftxui;
+
+  CombatUI::CombatUI(GameLevel level) :
+    Panel(COMBAT_UI_X, COMBAT_UI_Y, COMBAT_UI_WIDTH, COMBAT_UI_HEIGHT, false),
+      $level(level)
+  {
+    default_bg = {0,0,0};
+  }
+
+  void CombatUI::create_render() {
+    $attack1_button = Button("ATTACK1", []{ fmt::println("ATTACK1 clicked"); });
+    $attack2_button = Button("ATTACK2", []{ fmt::println("ATTACK2 clicked"); });
+
+    auto combat_rend = Renderer([&]{
+      return hbox({
+          $attack1_button->Render(),
+          $attack2_button->Render()
+      });
+    });
+
+    set_renderer(combat_rend);
+    add($attack1_button);
+    add($attack2_button);
+  }
+}