第一次提交

Plugins/GCS/Source/GenericGameplayAbilities/Private/Globals/GGA_GameplayEffectContext.cpp

@@ -0,0 +1,143 @@
+// Copyright 2025 https://yuewu.dev/en  All Rights Reserved.
+
+
+#include "Globals/GGA_GameplayEffectContext.h"
+
+FGameplayEffectContext* FGGA_GameplayEffectContext::Duplicate() const
+{
+	FGGA_GameplayEffectContext* NewContext = new FGGA_GameplayEffectContext();
+	*NewContext = *this;
+	if (GetHitResult())
+	{
+		// Does a deep copy of the hit result
+		NewContext->AddHitResult(*GetHitResult(), true);
+	}
+	return NewContext;
+}
+
+UScriptStruct* FGGA_GameplayEffectContext::GetScriptStruct() const
+{
+	return StaticStruct();
+}
+
+//Reference this:https://www.thegames.dev/?p=62
+
+bool FGGA_GameplayEffectContext::NetSerialize(FArchive& Ar, UPackageMap* Map, bool& bOutSuccess)
+{
+	bool bCombinedSuccess = FGameplayEffectContext::NetSerialize(Ar, Map, bOutSuccess);
+
+	enum RepFlag
+	{
+		REP_ContextPayloads,
+		REP_MAX
+	};
+
+	uint16 RepBits = 0;
+	if (Ar.IsSaving())
+	{
+		if (Payloads.Num() > 0)
+		{
+			RepBits |= 1 << REP_ContextPayloads;
+		}
+	}
+
+	Ar.SerializeBits(&RepBits, REP_MAX);
+	if (RepBits & (1 << REP_ContextPayloads))
+	{
+		// or also check if Ar.IsSaving || Ar.IsLoading
+		bCombinedSuccess &= SafeNetSerializeTArray_WithNetSerialize<31>(Ar, Payloads, Map);
+	}
+
+	return bCombinedSuccess;
+}
+
+TArray<FInstancedStruct>& FGGA_GameplayEffectContext::GetPayloads()
+{
+	return Payloads;
+}
+
+void FGGA_GameplayEffectContext::AddOrOverwriteData(const FInstancedStruct& DataInstance)
+{
+	RemovePayloadByType(DataInstance.GetScriptStruct());
+	Payloads.Add(DataInstance);
+}
+
+const FInstancedStruct* FGGA_GameplayEffectContext::FindPayloadByType(const UScriptStruct* PayloadType) const
+{
+	for (const FInstancedStruct& Payload : Payloads)
+	{
+		if (const UScriptStruct* CandidateStruct = Payload.GetScriptStruct())
+		{
+			if (CandidateStruct == PayloadType)
+			{
+				return &Payload;
+			}
+		}
+	}
+
+	return nullptr;
+}
+
+FInstancedStruct* FGGA_GameplayEffectContext::FindPayloadByType(const UScriptStruct* PayloadType)
+{
+	for (FInstancedStruct& Payload : Payloads)
+	{
+		if (const UScriptStruct* CandidateStruct = Payload.GetScriptStruct())
+		{
+			if (CandidateStruct == PayloadType)
+			{
+				return &Payload;
+			}
+		}
+	}
+
+	return nullptr;
+}
+
+FInstancedStruct* FGGA_GameplayEffectContext::FindOrAddPayloadByType(const UScriptStruct* PayloadType)
+{
+	if (FInstancedStruct* ExistingData = FindPayloadByType(PayloadType))
+	{
+		return ExistingData;
+	}
+
+	return AddPayloadByType(PayloadType);
+}
+
+FInstancedStruct* FGGA_GameplayEffectContext::AddPayloadByType(const UScriptStruct* PayloadType)
+{
+	if (ensure(!FindPayloadByType(PayloadType)))
+	{
+		FInstancedStruct Data;
+		Data.InitializeAs(PayloadType);
+		AddOrOverwriteData(Data);
+		return FindPayloadByType(PayloadType);
+	}
+
+	return nullptr;
+}
+
+bool FGGA_GameplayEffectContext::RemovePayloadByType(const UScriptStruct* PayloadType)
+{
+	int32 IndexToRemove = -1;
+
+	for (int32 i = 0; i < Payloads.Num() && IndexToRemove < 0; ++i)
+	{
+		if (const UScriptStruct* CandidateStruct = Payloads[i].GetScriptStruct())
+		{
+			if (CandidateStruct == PayloadType)
+			{
+				IndexToRemove = i;
+				break;
+			}
+		}
+	}
+
+	if (IndexToRemove >= 0)
+	{
+		Payloads.RemoveAt(IndexToRemove);
+		return true;
+	}
+
+	return false;
+}