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03-UnrealEngine/Gameplay/Lyra/UE5 Lyra学习笔记(8)—EnhanceInput（UE5.5）.md

@@ -216,7 +216,9 @@ void ULyraHeroComponent::InitializePlayerInput(UInputComponent* PlayerInputCompo
 	2. AddMappingContext()的选项OptionsNotifyUserSettings设置为true，会调用UEnhancedInputUserSettings::RegisterInputMappingContext()
 2. ProjectSettings - Engine - EnhancedInput - UserSettings中的Enable User Settings
 3. 配置IA与IMC中的UserSetting选项。 
-	1. 部分输入比如Axis2D类
+	1. 部分输入比如Axis2D这种，需要在IMC中进行设置。
+4. 默认Profile GameplayTag
+	1. 
 
 ## 加载按键设置逻辑
 默认自动加载，载入逻辑位于UEnhancedInputUserSettings::LoadOrCreateSettings()，调用顺序是：
@@ -277,3 +279,60 @@ UEnhancedInputUserSettings* UEnhancedInputUserSettings::LoadOrCreateSettings(ULo
 	return Settings;
 }
 ```
+
+## 鼠标灵敏度与反转设置实现
+参考Lyra的实现方法：
+1. 通过实现2个UInputModifier。
+2. 在ULyraSettingsShared(ULocalPlayerSaveGame)存储对应的灵敏度float数据。
+	1. 可以考虑直接在UEnhancedInputUserSettings中来存储。
+
+```c++
+//////////////////////////////////////////////////////////////////////
+// ULyraInputModifierGamepadSensitivity
+FInputActionValue ULyraInputModifierGamepadSensitivity::ModifyRaw_Implementation(const UEnhancedPlayerInput* PlayerInput, FInputActionValue CurrentValue, float DeltaTime)
+{
+    // You can't scale a boolean action type
+    ULyraLocalPlayer* LocalPlayer = LyraInputModifiersHelpers::GetLocalPlayer(PlayerInput);
+    if (CurrentValue.GetValueType() == EInputActionValueType::Boolean || !LocalPlayer || !SensitivityLevelTable)
+    {
+       return CurrentValue;
+    }
+    
+    ULyraSettingsShared* Settings = LocalPlayer->GetSharedSettings();
+    ensure(Settings);
+
+    const ELyraGamepadSensitivity Sensitivity = (TargetingType == ELyraTargetingType::Normal) ? Settings->GetGamepadLookSensitivityPreset() : Settings->GetGamepadTargetingSensitivityPreset();
+
+    const float Scalar = SensitivityLevelTable->SensitivtyEnumToFloat(Sensitivity);
+
+    return CurrentValue.Get<FVector>() * Scalar;
+}
+
+//////////////////////////////////////////////////////////////////////
+// ULyraInputModifierAimInversion
+FInputActionValue ULyraInputModifierAimInversion::ModifyRaw_Implementation(const UEnhancedPlayerInput* PlayerInput, FInputActionValue CurrentValue, float DeltaTime)
+{
+    ULyraLocalPlayer* LocalPlayer = LyraInputModifiersHelpers::GetLocalPlayer(PlayerInput);
+    if (!LocalPlayer)
+    {
+       return CurrentValue;
+    }
+    
+    ULyraSettingsShared* Settings = LocalPlayer->GetSharedSettings();
+    ensure(Settings);
+
+    FVector NewValue = CurrentValue.Get<FVector>();
+    
+    if (Settings->GetInvertVerticalAxis())
+    {
+       NewValue.Y *= -1.0f;
+    }
+    
+    if (Settings->GetInvertHorizontalAxis())
+    {
+       NewValue.X *= -1.0f;
+    }
+    
+    return NewValue;
+}
+```