basic_data.hpp is now a real interface.

include/basic_data.hpp

@@ -3,18 +3,10 @@
 
 
 #include <string>
-#include <utility>
 
 namespace data {
     class BasicData {
     public:
-
-        const std::string name{ "Basic" };
-
-        BasicData() = delete;
-
-        explicit BasicData(std::string name) : name(std::move(name)) {}
-
         virtual ~BasicData() noexcept = default;
 
         virtual void key_callback(int key, int scancode, int action, int mods) = 0;
@@ -26,6 +18,8 @@ namespace data {
         virtual void window_pos(int xpos, int ypos) = 0;
 
         virtual void window_size(int width, int height) = 0;
+
+        [[nodiscard]] virtual std::string get_name() const noexcept = 0;
     };
 }