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UnrealEngine/Engine/Plugins/Runtime/StateTree/Source/StateTreeModule/Public/StateTreeModule.h
2025-05-18 13:04:45 +08:00

70 lines
2.1 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
#include "Modules/ModuleManager.h"
namespace UE::Trace
{
class FStoreClient;
}
/**
* The public interface to this module
*/
class IStateTreeModule : public IModuleInterface
{
public:
/**
* Singleton-like access to this module's interface. This is just for convenience!
* Beware of calling this during the shutdown phase, though. Your module might have been unloaded already.
*
* @return Returns singleton instance, loading the module on demand if needed
*/
static IStateTreeModule& Get()
{
return FModuleManager::LoadModuleChecked<IStateTreeModule>("StateTreeModule");
}
/**
* Checks to see if this module is loaded and ready. It is only valid to call Get() if IsAvailable() returns true.
*
* @return True if the module is loaded and ready to use
*/
static bool IsAvailable()
{
return FModuleManager::Get().IsModuleLoaded("StateTreeModule");
}
/**
* Creates new tracing connection if necessary and enables StateTree debugging related channels (frame + statetree).
* If traces are already active we keep track of all channels previously activated to restore them on stop.
* @param OutTraceId In case a connection is already active this indicates its id, 0 otherwise.
* @return True if a new trace connection was created, false otherwise (already active or not created)
* @note Even if it returns false this can still have enabled StateTree related channels, OutTraceId will indicate
* which trace to use and StopTraces should be called to restore to previous setup.
*/
virtual bool StartTraces(int32& OutTraceId) = 0;
/**
* Stops the trace service if it was not already connected when StartTraces was called.
* Restores previously enabled channels if necessary.
*/
virtual void StopTraces() = 0;
/**
* Indicates if the statetree specific traces are active (explicitly started by StartTraces).
* @return True is StartTraces was called, false otherwise.
*/
virtual bool IsTracing() const = 0;
#if WITH_STATETREE_TRACE_DEBUGGER
/**
* Gets the store client.
*/
virtual UE::Trace::FStoreClient* GetStoreClient() = 0;
#endif // WITH_STATETREE_TRACE_DEBUGGER
};