Make it easy to clear/reset mappings

src/input.rs

@@ -22,19 +22,23 @@ pub struct GamepadInfo {
 pub trait Mappings {
     fn mapping_names(&self) -> HashMap<VBKey, Vec<String>>;
     fn clear_mappings(&mut self, key: VBKey);
+    fn clear_all_mappings(&mut self);
+    fn use_default_mappings(&mut self);
 }
 
 pub struct GamepadMapping {
     buttons: HashMap<Code, VBKey>,
     axes: HashMap<Code, (VBKey, VBKey)>,
+    default_buttons: HashMap<Code, VBKey>,
+    default_axes: HashMap<Code, (VBKey, VBKey)>,
 }
 
 impl GamepadMapping {
     fn for_gamepad(gamepad: &Gamepad) -> Self {
-        let mut buttons = HashMap::new();
+        let mut default_buttons = HashMap::new();
         let mut default_button = |btn: Button, key: VBKey| {
             if let Some(code) = gamepad.button_code(btn) {
-                buttons.insert(code, key);
+                default_buttons.insert(code, key);
             }
         };
         default_button(Button::South, VBKey::A);
@@ -44,10 +48,10 @@ impl GamepadMapping {
         default_button(Button::Start, VBKey::STA);
         default_button(Button::Select, VBKey::SEL);
 
-        let mut axes = HashMap::new();
+        let mut default_axes = HashMap::new();
         let mut default_axis = |axis: Axis, neg: VBKey, pos: VBKey| {
             if let Some(code) = gamepad.axis_code(axis) {
-                axes.insert(code, (neg, pos));
+                default_axes.insert(code, (neg, pos));
             }
         };
         default_axis(Axis::LeftStickX, VBKey::LL, VBKey::LR);
@@ -57,7 +61,12 @@ impl GamepadMapping {
         default_axis(Axis::DPadX, VBKey::LL, VBKey::LR);
         default_axis(Axis::DPadY, VBKey::LD, VBKey::LU);
 
-        Self { buttons, axes }
+        Self {
+            buttons: default_buttons.clone(),
+            axes: default_axes.clone(),
+            default_buttons,
+            default_axes,
+        }
     }
 
     pub fn add_button_mapping(&mut self, key: VBKey, code: Code) {
@@ -112,6 +121,16 @@ impl Mappings for GamepadMapping {
             !keys.is_empty()
         });
     }
+
+    fn clear_all_mappings(&mut self) {
+        self.axes.clear();
+        self.buttons.clear();
+    }
+
+    fn use_default_mappings(&mut self) {
+        self.axes = self.default_axes.clone();
+        self.buttons = self.default_buttons.clone();
+    }
 }
 
 #[derive(Default)]
@@ -162,23 +181,15 @@ impl Mappings for InputMapping {
             !keys.is_empty()
         });
     }
-}
 
-#[derive(Clone)]
-pub struct MappingProvider {
-    device_mappings: Arc<RwLock<HashMap<DeviceId, Arc<RwLock<GamepadMapping>>>>>,
-    sim_mappings: HashMap<SimId, Arc<RwLock<InputMapping>>>,
-    gamepad_info: Arc<RwLock<HashMap<GamepadId, GamepadInfo>>>,
-}
+    fn clear_all_mappings(&mut self) {
+        self.keys.clear();
+    }
 
-impl MappingProvider {
-    pub fn new() -> Self {
-        let mut mappings = HashMap::new();
-
-        let mut p1_mappings = InputMapping::default();
-        let p2_mappings = InputMapping::default();
+    fn use_default_mappings(&mut self) {
+        self.keys.clear();
         let mut default_key = |code, key| {
-            p1_mappings.add_keyboard_mapping(key, PhysicalKey::Code(code));
+            self.keys.insert(PhysicalKey::Code(code), key);
         };
         default_key(KeyCode::KeyA, VBKey::SEL);
         default_key(KeyCode::KeyS, VBKey::STA);
@@ -194,6 +205,23 @@ impl MappingProvider {
         default_key(KeyCode::ArrowLeft, VBKey::LL);
         default_key(KeyCode::ArrowDown, VBKey::LD);
         default_key(KeyCode::ArrowRight, VBKey::LR);
+    }
+}
+
+#[derive(Clone)]
+pub struct MappingProvider {
+    device_mappings: Arc<RwLock<HashMap<DeviceId, Arc<RwLock<GamepadMapping>>>>>,
+    sim_mappings: HashMap<SimId, Arc<RwLock<InputMapping>>>,
+    gamepad_info: Arc<RwLock<HashMap<GamepadId, GamepadInfo>>>,
+}
+
+impl MappingProvider {
+    pub fn new() -> Self {
+        let mut mappings = HashMap::new();
+
+        let mut p1_mappings = InputMapping::default();
+        p1_mappings.use_default_mappings();
+        let p2_mappings = InputMapping::default();
 
         mappings.insert(SimId::Player1, Arc::new(RwLock::new(p1_mappings)));
         mappings.insert(SimId::Player2, Arc::new(RwLock::new(p2_mappings)));

src/window/input.rs

@@ -50,6 +50,17 @@ impl InputWindow {
         mappings: &RwLock<T>,
         bind_message: &str,
     ) {
+        ui.horizontal(|ui| {
+            if ui.button("Use defaults").clicked() {
+                mappings.write().unwrap().use_default_mappings();
+                self.now_binding = None;
+            }
+            if ui.button("Clear all").clicked() {
+                mappings.write().unwrap().clear_all_mappings();
+                self.now_binding = None;
+            }
+        });
+        ui.separator();
         let mut names = {
             let mapping = mappings.read().unwrap();
             mapping.mapping_names()