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// Copyright 2025 https://yuewu.dev/en All Rights Reserved.
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#include "Utilities/GGA_GameplayEffectFunctionLibrary.h"
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#include "GameplayEffect.h"
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#include "Blueprint/BlueprintExceptionInfo.h"
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#include "UObject/EnumProperty.h"
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#include "GGA_GameplayEffectContext.h"
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#include "GGA_LogChannels.h"
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#define LOCTEXT_NAMESPACE "UGGA_GameplayEffectFunctionLibrary"
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// UGameplayEffect* UGGA_GameplayEffectFunctionLibrary::MakeRuntimeGameplayEffect(FString UniqueName, EGameplayEffectDurationType DurationPolicy, TArray<FGameplayModifierInfo> AttributeModifiers)
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// {
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// UGameplayEffect* GameplayEffect = NewObject<UGameplayEffect>(GetTransientPackage(), FName("RuntimeGE_" + GetNameSafe(this) + UniqueName));
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// GameplayEffect->DurationPolicy = DurationPolicy;
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// GameplayEffect->Modifiers = AttributeModifiers;
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// return GameplayEffect;
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// }
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float UGGA_GameplayEffectFunctionLibrary::GetSetByCallerMagnitudeByTag(FGameplayEffectSpecHandle SpecHandle, FGameplayTag DataTag, bool WarnIfNotFound, float DefaultIfNotFound)
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{
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FGameplayEffectSpec* Spec = SpecHandle.Data.Get();
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if (Spec)
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{
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return Spec->GetSetByCallerMagnitude(DataTag, WarnIfNotFound, DefaultIfNotFound);
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}
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return 0.0f;
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}
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float UGGA_GameplayEffectFunctionLibrary::GetSetByCallerMagnitudeByTagFromSpec(const FGameplayEffectSpec& EffectSpec, FGameplayTag DataTag, bool WarnIfNotFound, float DefaultIfNotFound)
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{
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return EffectSpec.GetSetByCallerMagnitude(DataTag, WarnIfNotFound, DefaultIfNotFound);
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}
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float UGGA_GameplayEffectFunctionLibrary::GetSetByCallerMagnitudeByName(FGameplayEffectSpecHandle SpecHandle, FName DataName)
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{
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FGameplayEffectSpec* Spec = SpecHandle.Data.Get();
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if (Spec)
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{
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return Spec->GetSetByCallerMagnitude(DataName, false);
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}
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return 0.0f;
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}
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bool UGGA_GameplayEffectFunctionLibrary::IsActiveGameplayEffectHandleValid(FActiveGameplayEffectHandle Handle)
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{
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return Handle.IsValid();
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}
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void UGGA_GameplayEffectFunctionLibrary::GetOwnedGameplayTags(FGameplayEffectContextHandle EffectContext, FGameplayTagContainer& ActorTagContainer, FGameplayTagContainer& SpecTagContainer)
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{
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return EffectContext.GetOwnedGameplayTags(ActorTagContainer, SpecTagContainer);
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}
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void UGGA_GameplayEffectFunctionLibrary::AddInstigator(FGameplayEffectContextHandle EffectContext, AActor* InInstigator, AActor* InEffectCauser)
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{
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EffectContext.AddInstigator(InInstigator, InEffectCauser);
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}
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void UGGA_GameplayEffectFunctionLibrary::SetEffectCauser(FGameplayEffectContextHandle EffectContext, AActor* InEffectCauser)
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{
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EffectContext.AddInstigator(EffectContext.GetInstigator(), InEffectCauser);
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}
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void UGGA_GameplayEffectFunctionLibrary::SetAbility(FGameplayEffectContextHandle EffectContext, const UGameplayAbility* InGameplayAbility)
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{
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EffectContext.SetAbility(InGameplayAbility);
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}
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const UGameplayAbility* UGGA_GameplayEffectFunctionLibrary::GetAbilityCDO(FGameplayEffectContextHandle EffectContext)
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{
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return EffectContext.GetAbility();
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}
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const UGameplayAbility* UGGA_GameplayEffectFunctionLibrary::GetAbilityInstance(FGameplayEffectContextHandle EffectContext)
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{
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return EffectContext.GetAbilityInstance_NotReplicated();
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}
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int32 UGGA_GameplayEffectFunctionLibrary::GetAbilityLevel(FGameplayEffectContextHandle EffectContext)
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{
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return EffectContext.GetAbilityLevel();
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}
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void UGGA_GameplayEffectFunctionLibrary::AddSourceObject(FGameplayEffectContextHandle EffectContext, const UObject* NewSourceObject)
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{
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if (NewSourceObject)
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{
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EffectContext.AddSourceObject(NewSourceObject);
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}
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}
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bool UGGA_GameplayEffectFunctionLibrary::HasOrigin(FGameplayEffectContextHandle EffectContext)
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{
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return EffectContext.HasOrigin();
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}
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FGGA_GameplayEffectContext* UGGA_GameplayEffectFunctionLibrary::GetEffectContextPtr(FGameplayEffectContextHandle EffectContext)
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{
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if (!EffectContext.IsValid())
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{
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GGA_LOG(Warning, "Try access invalid effect context!")
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return nullptr;
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}
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if (!EffectContext.Get()->GetScriptStruct()->IsChildOf(FGGA_GameplayEffectContext::StaticStruct()))
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{
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GGA_LOG(Warning, "The GameplayEffectContext type is not FGGA_GameplayEffectContext! "
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"Make sure you are setting AbilitySystemGlobalsClassName as GGA_AbilitySystemGlobals in Gameplay Abilities Settings Under Project Settings! ")
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return nullptr;
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}
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return static_cast<FGGA_GameplayEffectContext*>(EffectContext.Get());
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}
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UAbilitySystemComponent* UGGA_GameplayEffectFunctionLibrary::GetInstigatorAbilitySystemComponent(FGameplayEffectContextHandle EffectContext)
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{
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return EffectContext.GetInstigatorAbilitySystemComponent();
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}
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UAbilitySystemComponent* UGGA_GameplayEffectFunctionLibrary::GetOriginalInstigatorAbilitySystemComponent(FGameplayEffectContextHandle EffectContext)
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{
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return EffectContext.GetOriginalInstigatorAbilitySystemComponent();
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}
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bool UGGA_GameplayEffectFunctionLibrary::HasContextPayload(FGameplayEffectContextHandle EffectContext, const UScriptStruct* PayloadType)
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{
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if (const FGGA_GameplayEffectContext* Context = GetEffectContextPtr(EffectContext))
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{
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return Context->FindPayloadByType(PayloadType) != nullptr;
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}
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return false;
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}
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bool UGGA_GameplayEffectFunctionLibrary::GetContextPayload(FGameplayEffectContextHandle EffectContext, const UScriptStruct* PayloadType, FInstancedStruct& OutPayload)
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{
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if (FGGA_GameplayEffectContext* Context = GetEffectContextPtr(EffectContext))
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{
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if (FInstancedStruct* Found = Context->FindPayloadByType(PayloadType))
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{
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OutPayload = *Found;
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return true;
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}
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}
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return false;
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}
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FInstancedStruct UGGA_GameplayEffectFunctionLibrary::GetValidContextPayload(FGameplayEffectContextHandle EffectContext, const UScriptStruct* PayloadType, bool& bValid)
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{
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bValid = false;
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if (FGGA_GameplayEffectContext* Context = GetEffectContextPtr(EffectContext))
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{
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if (FInstancedStruct* Found = Context->FindPayloadByType(PayloadType))
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{
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bValid = true;
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return *Found;
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}
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}
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return FInstancedStruct();
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}
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void UGGA_GameplayEffectFunctionLibrary::GetContextPayload(FGameplayEffectContextHandle EffectContext, const UScriptStruct* PayloadType, EGGA_ContextPayloadResult& ExecResult, int32& Value)
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{
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// We should never hit this! stubs to avoid NoExport on the class.
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checkNoEntry();
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}
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DEFINE_FUNCTION(UGGA_GameplayEffectFunctionLibrary::execGetContextPayload)
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{
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P_GET_STRUCT_REF(FGameplayEffectContextHandle, EffectContext);
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P_GET_OBJECT(const UScriptStruct, PayloadType);
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P_GET_ENUM_REF(EGGA_ContextPayloadResult, ExecResult);
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// Read wildcard Value input
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Stack.MostRecentPropertyAddress = nullptr;
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Stack.MostRecentPropertyContainer = nullptr;
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Stack.StepCompiledIn<FStructProperty>(nullptr);
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const FStructProperty* ValueProp = CastField<FStructProperty>(Stack.MostRecentProperty);
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void* ValuePtr = Stack.MostRecentPropertyAddress;
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P_FINISH;
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P_NATIVE_BEGIN;
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ExecResult = EGGA_ContextPayloadResult::NotValid;
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if (!ValueProp || !ValuePtr || !PayloadType)
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{
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FBlueprintExceptionInfo ExceptionInfo(
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EBlueprintExceptionType::AbortExecution,
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LOCTEXT("InstancedStruct_GetInvalidValueWarning", "Failed to resolve the Value or PayloadType for Get Context Payload")
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);
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FBlueprintCoreDelegates::ThrowScriptException(P_THIS, Stack, ExceptionInfo);
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}
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else
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{
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FInstancedStruct OutPayload;
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if (GetContextPayload(EffectContext, PayloadType, OutPayload))
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{
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if (OutPayload.IsValid() && OutPayload.GetScriptStruct()->IsChildOf(ValueProp->Struct))
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{
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// Copy the struct data to the output Value
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ValueProp->Struct->CopyScriptStruct(ValuePtr, OutPayload.GetMemory());
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ExecResult = EGGA_ContextPayloadResult::Valid;
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}
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else
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{
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ExecResult = EGGA_ContextPayloadResult::NotValid;
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}
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}
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else
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{
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ExecResult = EGGA_ContextPayloadResult::NotValid;
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}
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}
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P_NATIVE_END;
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}
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void UGGA_GameplayEffectFunctionLibrary::SetContextPayload(FGameplayEffectContextHandle EffectContext, EGGA_ContextPayloadResult& ExecResult, const int32& Value)
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{
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// We should never hit this! stubs to avoid NoExport on the class.
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checkNoEntry();
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}
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DEFINE_FUNCTION(UGGA_GameplayEffectFunctionLibrary::execSetContextPayload)
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{
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P_GET_STRUCT_REF(FGameplayEffectContextHandle, EffectContext);
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P_GET_ENUM_REF(EGGA_ContextPayloadResult, ExecResult);
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// Read wildcard Value input
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Stack.MostRecentPropertyAddress = nullptr;
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Stack.MostRecentPropertyContainer = nullptr;
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Stack.StepCompiledIn<FStructProperty>(nullptr);
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const FStructProperty* ValueProp = CastField<FStructProperty>(Stack.MostRecentProperty);
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const void* ValuePtr = Stack.MostRecentPropertyAddress;
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P_FINISH;
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P_NATIVE_BEGIN;
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ExecResult = EGGA_ContextPayloadResult::NotValid;
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if (!ValueProp || !ValuePtr || !EffectContext.IsValid())
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{
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FBlueprintExceptionInfo ExceptionInfo(
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EBlueprintExceptionType::AbortExecution,
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LOCTEXT("InstancedStruct_SetInvalidValueWarning", "Failed to resolve Value or EffectContext for Set Instanced Struct Value")
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);
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FBlueprintCoreDelegates::ThrowScriptException(P_THIS, Stack, ExceptionInfo);
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}
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else
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{
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// Create an FInstancedStruct from the input struct
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FInstancedStruct Payload;
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Payload.InitializeAs(ValueProp->Struct, static_cast<const uint8*>(ValuePtr));
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if (Payload.IsValid())
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{
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// Call the existing SetPayload function
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if (FGGA_GameplayEffectContext* ContextPtr = GetEffectContextPtr(EffectContext))
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{
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ContextPtr->AddOrOverwriteData(Payload);
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ExecResult = EGGA_ContextPayloadResult::Valid;
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}
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}
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else
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{
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FBlueprintExceptionInfo ExceptionInfo(
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EBlueprintExceptionType::AbortExecution,
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LOCTEXT("SetGameplayEffectContextPayload", "Failed to create valid InstancedStruct from Value")
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);
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FBlueprintCoreDelegates::ThrowScriptException(P_THIS, Stack, ExceptionInfo);
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}
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}
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P_NATIVE_END;
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}
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#undef LOCTEXT_NAMESPACE
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