Moved analog direction logic to sdl_impl

src/core/frontend/input.h

@@ -15,6 +15,13 @@
 
 namespace Input {
 
+enum class AnalogDirection : u8 {
+    RIGHT,
+    LEFT,
+    UP,
+    DOWN,
+};
+
 /// An abstract class template for an input device (a button, an analog input, etc.).
 template <typename StatusType>
 class InputDevice {
@@ -23,6 +30,9 @@ public:
     virtual StatusType GetStatus() const {
         return {};
     }
+    virtual bool GetAnalogDirectionStatus(AnalogDirection direction) const {
+        return {};
+    }
 };
 
 /// An abstract class template for a factory that can create input devices.