Support simple Menu

examples/PoolBox/application/src/include/menu.hpp

@@ -0,0 +1,29 @@
+#pragma once
+#include "font_writer.hpp"
+#include <FontWriter/font_writer.hpp>
+
+namespace Menu {
+    using namespace JabyEngine;
+
+    class SimpleMenu {
+    public:
+        struct Entry {
+            const char* name;
+        };
+
+    private:
+        const Entry* entries;
+        size_t       size;
+        uint8_t      cur_selection;
+
+    public:
+        void setup(const Entry* entries, size_t size);
+        
+        template<size_t N>
+        void setup(const Entry (&entries)[N]) {
+            SimpleMenu::setup(entries, N);
+        }
+
+        void update(JabyEngine::FontWriter& font_writer, State& cursor, const GPU::PositionI16& start);
+    };
+}