settings: Preparation for per-game input settings

src/core/settings.h

@@ -65,6 +65,38 @@ private:
     Type local{};
 };
 
+/**
+ * The InputSetting class allows for getting a reference to either the global or local members.
+ * This is required as we cannot easily modify the values of user-defined types within containers
+ * using the SetValue() member function found in the Setting class. The primary purpose of this
+ * class is to store an array of 10 PlayerInput structs for both the global and local (per-game)
+ * setting and allows for easily accessing and modifying both settings.
+ */
+template <typename Type>
+class InputSetting final {
+public:
+    InputSetting() = default;
+    explicit InputSetting(Type val) : global{val} {}
+    ~InputSetting() = default;
+    void SetGlobal(bool to_global) {
+        use_global = to_global;
+    }
+    bool UsingGlobal() const {
+        return use_global;
+    }
+    Type& GetValue(bool need_global = false) {
+        if (use_global || need_global) {
+            return global;
+        }
+        return local;
+    }
+
+private:
+    bool use_global = true;
+    Type global{};
+    Type local{};
+};
+
 struct TouchFromButtonMap {
     std::string name;
     std::vector<std::string> buttons;
@@ -133,9 +165,17 @@ struct Values {
     Setting<s32> sound_index;
 
     // Controls
-    std::array<PlayerInput, 10> players;
+    InputSetting<std::array<PlayerInput, 10>> players;
 
-    bool use_docked_mode;
+    Setting<bool> use_docked_mode;
+
+    Setting<bool> vibration_enabled;
+
+    Setting<bool> motion_enabled;
+    std::string motion_device;
+    std::string udp_input_address;
+    u16 udp_input_port;
+    u8 udp_pad_index;
 
     bool mouse_enabled;
     std::string mouse_device;
@@ -149,20 +189,15 @@ struct Values {
     ButtonsRaw debug_pad_buttons;
     AnalogsRaw debug_pad_analogs;
 
-    bool vibration_enabled;
-
-    bool motion_enabled;
-    std::string motion_device;
-    std::string touch_device;
     TouchscreenInput touchscreen;
-    std::atomic_bool is_device_reload_pending{true};
+
     bool use_touch_from_button;
+    std::string touch_device;
     int touch_from_button_map_index;
-    std::string udp_input_address;
-    u16 udp_input_port;
-    u8 udp_pad_index;
     std::vector<TouchFromButtonMap> touch_from_button_maps;
 
+    std::atomic_bool is_device_reload_pending{true};
+
     // Data Storage
     bool use_virtual_sd;
     bool gamecard_inserted;