Implement being able to drop through soft platforms

src/fighter/state/crouch.rs

@@ -120,8 +120,8 @@ impl FighterStateImpl for CrouchState {
 
     fn update(&mut self, state_context: &mut UpdateContext) {
         if let CrouchSubState::Entering {
-            pass_queued,
+            ref mut pass_queued,
-        } = &mut self.sub_state
+        } = self.sub_state
         {
             if state_context
                 .input

src/input/mod.rs

@@ -116,12 +116,13 @@ impl Plugin for FighterInputPlugin {
                     binding: GamepadBinding::Button(GamepadButton::North),
                     action: InputMapAction::Jump,
                 },
+                // shield/airdodge -- both shoulder buttons, Melee-style
                 GamepadInputMapElement {
-                    binding: GamepadBinding::Button(GamepadButton::LeftTrigger2),
+                    binding: GamepadBinding::Button(GamepadButton::LeftTrigger),
                     action: InputMapAction::Shield,
                 },
                 GamepadInputMapElement {
-                    binding: GamepadBinding::Button(GamepadButton::RightTrigger2),
+                    binding: GamepadBinding::Button(GamepadButton::RightTrigger),
                     action: InputMapAction::Shield,
                 },
                 // attack