Singleton cache for engine assets. More...

#include <AssetManager.h>

Public Member Functions
AssetID	LoadTaskGraph (const std::string &path, std::vector< std::string > &outErrors)
	Loads a TaskGraphTemplate from `path` and caches it.

const TaskGraphTemplate *	GetTaskGraph (AssetID id) const
	Returns a non-owning pointer to the cached TaskGraphTemplate.

const TaskGraphTemplate *	LoadTaskGraphFromFile (const std::string &path, std::vector< std::string > &outErrors)
	Loads a TaskGraphTemplate from `path` and returns a direct pointer.

void	UnloadTaskGraph (AssetID id)
	Releases the cached TaskGraphTemplate for `id`.

Static Public Member Functions
static AssetManager &	Get ()
	Returns the singleton AssetManager instance.

static AssetID	ComputeAssetID (const std::string &path)
	Computes the 32-bit FNV-1a hash of a file path string.

Private Member Functions
	AssetManager ()=default

	~AssetManager ()=default

	AssetManager (const AssetManager &)=delete

AssetManager &	operator= (const AssetManager &)=delete

Private Attributes
std::unordered_map< AssetID, std::unique_ptr< TaskGraphTemplate > >	m_taskGraphs
	Cached task graph templates: AssetID -> owned template.

Detailed Description

Singleton cache for engine assets.

Call Get() to obtain the singleton instance. All TaskGraphTemplate assets loaded through LoadTaskGraph() are owned by AssetManager; callers must not delete the pointers returned by GetTaskGraph().

Definition at line 61 of file AssetManager.h.

Constructor & Destructor Documentation

◆ AssetManager() [1/2]

Olympe::AssetManager::AssetManager ( )

privatedefault

◆ ~AssetManager()

Olympe::AssetManager::~AssetManager ( )

privatedefault

◆ AssetManager() [2/2]

Olympe::AssetManager::AssetManager ( const AssetManager & )

privatedelete

Member Function Documentation

◆ ComputeAssetID()

AssetID Olympe::AssetManager::ComputeAssetID ( const std::string & path )

static

Computes the 32-bit FNV-1a hash of a file path string.

The hash is used as the AssetID so that the same path always maps to the same identifier. Exposed publicly so callers can pre-compute IDs.

Parameters

path	Any non-empty string.

Returns: 32-bit FNV-1a hash. Returns INVALID_ASSET_ID (0) only if the input is empty.

Definition at line 29 of file AssetManager.cpp.

References GetComponentTypeID_Static(), and Olympe::INVALID_ASSET_ID.

Referenced by LoadTaskGraph().

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◆ Get()

AssetManager & Olympe::AssetManager::Get ( )

static

Returns the singleton AssetManager instance.

Definition at line 19 of file AssetManager.cpp.

Referenced by Olympe::VSGraphExecutor::HandleSubGraph(), Olympe::BlueprintEditor::PreloadATSGraphs(), and Olympe::TaskSystem::Process().

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◆ GetTaskGraph()

const TaskGraphTemplate * Olympe::AssetManager::GetTaskGraph ( AssetID id ) const

Returns a non-owning pointer to the cached TaskGraphTemplate.

Parameters

id	AssetID previously returned by LoadTaskGraph().

Returns: Pointer to the template, or nullptr if id is unknown.

Note: The returned pointer is valid until UnloadTaskGraph() or the AssetManager is destroyed. Do NOT delete it.

Definition at line 97 of file AssetManager.cpp.

References GetComponentTypeID_Static(), and m_taskGraphs.

Referenced by LoadTaskGraphFromFile(), and Olympe::TaskSystem::Process().

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◆ LoadTaskGraph()

AssetID Olympe::AssetManager::LoadTaskGraph	(	const std::string &	path,
		std::vector< std::string > &	outErrors
	)

Loads a TaskGraphTemplate from path and caches it.

If the asset has already been loaded (same path hash), the cached AssetID is returned immediately without re-reading the file.

Parameters

path	Absolute or relative path to the JSON task graph file.
outErrors	Receives human-readable error messages on failure.

Returns: A non-zero AssetID on success, or INVALID_ASSET_ID on failure.

Note: AssetManager owns the loaded template. Do NOT delete the pointer returned by GetTaskGraph().

Definition at line 60 of file AssetManager.cpp.

References ComputeAssetID(), GetComponentTypeID_Static(), Olympe::INVALID_ASSET_ID, Olympe::TaskGraphLoader::LoadFromFile(), m_taskGraphs, and SYSTEM_LOG.

Referenced by LoadTaskGraphFromFile(), and Olympe::BlueprintEditor::PreloadATSGraphs().

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◆ LoadTaskGraphFromFile()

const TaskGraphTemplate * Olympe::AssetManager::LoadTaskGraphFromFile	(	const std::string &	path,
		std::vector< std::string > &	outErrors
	)

Loads a TaskGraphTemplate from path and returns a direct pointer.

Convenience wrapper around LoadTaskGraph() + GetTaskGraph() for use in code that needs a template pointer without managing AssetIDs (e.g., SubGraph execution in VSGraphExecutor).

Parameters