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o3de/Code/Framework/AzFramework/AzFramework/Scene/SceneSystemComponent.h

63 lines
2.7 KiB
C++

/*
* Copyright (c) Contributors to the Open 3D Engine Project.
* For complete copyright and license terms please see the LICENSE at the root of this distribution.
*
* SPDX-License-Identifier: Apache-2.0 OR MIT
*
*/
#pragma once
#include <AzCore/Component/Component.h>
#include <AzCore/std/containers/map.h>
#include <AzCore/std/parallel/mutex.h>
#include <AzFramework/Scene/SceneSystemInterface.h>
#include <AzFramework/Entity/EntityContext.h>
namespace AzFramework
{
class SceneSystemComponent
: public AZ::Component
, public SceneSystemInterface::Registrar
{
public:
AZ_COMPONENT(SceneSystemComponent, "{7AC53AF0-BE1A-437C-BE3E-4D6A998DA945}", AZ::Component, ISceneSystem);
SceneSystemComponent();
~SceneSystemComponent() override;
//////////////////////////////////////////////////////////////////////////
// Component overrides
void Activate() override;
void Deactivate() override;
//////////////////////////////////////////////////////////////////////////
static void Reflect(AZ::ReflectContext* context);
static void GetProvidedServices(AZ::ComponentDescriptor::DependencyArrayType& provided);
static void GetIncompatibleServices(AZ::ComponentDescriptor::DependencyArrayType& incompatible);
//////////////////////////////////////////////////////////////////////////
// SceneSystemInterface overrides
//////////////////////////////////////////////////////////////////////////
AZ::Outcome<AZStd::shared_ptr<Scene>, AZStd::string> CreateScene(AZStd::string_view name) override;
AZ::Outcome<AZStd::shared_ptr<Scene>, AZStd::string> CreateSceneWithParent(
AZStd::string_view name, AZStd::shared_ptr<Scene> parent) override;
[[nodiscard]] AZStd::shared_ptr<Scene> GetScene(AZStd::string_view name) override;
void IterateActiveScenes(const ActiveIterationCallback& callback) override;
void IterateZombieScenes(const ZombieIterationCallback& callback) override;
bool RemoveScene(AZStd::string_view name) override;
void ConnectToEvents(SceneEvent::Handler& handler) override;
private:
AZ_DISABLE_COPY_MOVE(SceneSystemComponent);
AZStd::vector<AZStd::shared_ptr<Scene>> m_activeScenes;
AZStd::vector<AZStd::weak_ptr<Scene>> m_zombieScenes;
// Using a mutex around the events as other threads may respond to a new/deleted scene by making
// local updates and unregistering themselves. Since Scene is single threaded, no updates (other
// then unregistering an event) should be done from other threads though.
AZStd::recursive_mutex m_eventMutex;
SceneEvent m_events;
};
}