From 5398807e697532480f01e58617ca6a6d3dd6a720 Mon Sep 17 00:00:00 2001
From: puchik <48544263+puchik@users.noreply.github.com>
Date: Sat, 4 Jan 2025 13:26:15 -0800
Subject: [PATCH] Fix 5.5 errors and warnings caused by GetSubsystemArray

Replaced `GetSubsystemArray` access with `SubsystemCollection.ForEachSubsystem()` iteration in the BeginPlay and EndPlay triggers in ExtendableGameStateBase to address 5.5 depreciation warnings and errors.
---
 Source/Runtime/Private/ExtendableGameStateBase.cpp |  8 ++++----
 Source/Runtime/Public/ExtendableGameStateBase.h    | 11 -----------
 2 files changed, 4 insertions(+), 15 deletions(-)

diff --git a/Source/Runtime/Private/ExtendableGameStateBase.cpp b/Source/Runtime/Private/ExtendableGameStateBase.cpp
index 38457d2..5ae530f 100644
--- a/Source/Runtime/Private/ExtendableGameStateBase.cpp
+++ b/Source/Runtime/Private/ExtendableGameStateBase.cpp
@@ -28,19 +28,19 @@ void AExtendableGameStateBase::BeginPlay()
 {
 	Super::BeginPlay();
 
-	for(UGameStateSubsystem* Subsystem : GetSubsystemArray<UGameStateSubsystem>())
+	SubsystemCollection.ForEachSubsystem([this](UGameStateSubsystem* Subsystem)
 	{
 		AddReplicatedSubObject(Subsystem);
 		Subsystem->BeginPlay();
-	}
+	}, UGameStateSubsystem::StaticClass());
 }
 
 void AExtendableGameStateBase::EndPlay(const EEndPlayReason::Type EndPlayReason)
 {
-	for(UGameStateSubsystem* Subsystem : GetSubsystemArray<UGameStateSubsystem>())
+	SubsystemCollection.ForEachSubsystem([this](UGameStateSubsystem* Subsystem)
 	{
 		RemoveReplicatedSubObject(Subsystem);
-	}
+	}, UGameStateSubsystem::StaticClass());
 	
 	SubsystemCollection.Deinitialize();
 	
diff --git a/Source/Runtime/Public/ExtendableGameStateBase.h b/Source/Runtime/Public/ExtendableGameStateBase.h
index 4ea03b2..e783af0 100644
--- a/Source/Runtime/Public/ExtendableGameStateBase.h
+++ b/Source/Runtime/Public/ExtendableGameStateBase.h
@@ -57,17 +57,6 @@ class GAMESTATESUBSYSTEM_API AExtendableGameStateBase : public AGameStateBase
 		return nullptr;
 	}
 
-	/**
-	 * Get all Subsystem of specified type, this is only necessary for interfaces that can have multiple implementations instanced at a time.
-	 *
-	 * Do not hold onto this Array reference unless you are sure the lifetime is less than that of AExtendableGameStateBase
-	 */
-	template <typename TSubsystemClass>
-	const TArray<TSubsystemClass*>& GetSubsystemArray() const
-	{
-		return SubsystemCollection.GetSubsystemArray<TSubsystemClass>(TSubsystemClass::StaticClass());
-	}
-
 private:
 
 	FObjectSubsystemCollection<UGameStateSubsystem> SubsystemCollection;