vault backup: 2024-02-02 12:39:48

03-UnrealEngine/Gameplay/GAS/GAS Ability输入绑定.md

@@ -129,7 +129,57 @@ uint8 InputPressed:1;
 - UAbilityTask_WaitInputPress
 - UAbilityTask_WaitInputRelease
 
-理论上是可以将其修改成增强输入的版本，只需要将枚举循环改成InputActionContext循环即可。
+理论上是可以将其修改成增强输入的版本，只需要将枚举循环改成InputActionContext循环即可，具体逻辑在角色类中
+```c++
+void AGSHeroCharacter::BindASCInput()
+{
+	if (!bASCInputBound && IsValid(AbilitySystemComponent) && IsValid(InputComponent))
+	{
+		AbilitySystemComponent->BindAbilityActivationToInputComponent(InputComponent, FGameplayAbilityInputBinds(FString("ConfirmTarget"),
+			FString("CancelTarget"), FString("EGSAbilityInputID"), static_cast<int32>(EGSAbilityInputID::Confirm), static_cast<int32>(EGSAbilityInputID::Cancel)));
+
+		bASCInputBound = true;
+	}
+}
+
+FGameplayAbilityInputBinds(FString InConfirmTargetCommand, FString InCancelTargetCommand, FTopLevelAssetPath InEnumPathName, int32 InConfirmTargetInputID = INDEX_NONE, int32 InCancelTargetInputID = INDEX_NONE)  
+    : ConfirmTargetCommand(InConfirmTargetCommand)  
+    , CancelTargetCommand(InCancelTargetCommand)  
+    , EnumPathName(InEnumPathName)  
+    , ConfirmTargetInputID(InConfirmTargetInputID)  
+    , CancelTargetInputID(InCancelTargetInputID)  
+{  
+}
+```
+
+**ConfirmTarget**、**CancelTarget**需要在DefaultInput.ini中添加对应的配置（名字需要对应）。
+**EGSAbilityInputID**为枚举类名称，**EGSAbilityInputID::Confirm**与**EGSAbilityInputID::Cancel**为枚举的index需要与GameplayAbilitySpec中的AbilityInputID对应。具体是在GiveAbility中进行，参考[[#GASShooter中给Ability注册按键ID]]。
+
+之后还需要在URPGGameplayAbility中将枚举**ERPGAbilityInputID**修改成
+```c++
+UPROPERTY(BlueprintReadOnly, EditAnywhere, Category = "RPGGameplayAbility|Input")  
+ERPGAbilityInputID AbilityInputID = ERPGAbilityInputID::None;
+```
+
+## GASShooter中给Ability注册按键ID
+```c++
+void AGSCharacterBase::AddCharacterAbilities()
+{
+	// Grant abilities, but only on the server	
+	if (GetLocalRole() != ROLE_Authority || !IsValid(AbilitySystemComponent) || AbilitySystemComponent->bCharacterAbilitiesGiven)
+	{
+		return;
+	}
+
+	for (TSubclassOf<UGSGameplayAbility>& StartupAbility : CharacterAbilities)
+	{
+		AbilitySystemComponent->GiveAbility(
+			FGameplayAbilitySpec(StartupAbility, GetAbilityLevel(StartupAbility.GetDefaultObject()->AbilityID), static_cast<int32>(StartupAbility.GetDefaultObject()->AbilityInputID), this));
+	}
+
+	AbilitySystemComponent->bCharacterAbilitiesGiven = true;
+}
+```
 
 # SDHGame
 李兄是在状态机每个节点的StateBegin()中调用CreateDynamicSkillInputActionMappingContext()进行动态绑定的。FSDHSkillInputActionBinding里包含FEnhancedActionKeyMapping相关数据。