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63 lines
2.2 KiB
C++
63 lines
2.2 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project.
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* For complete copyright and license terms please see the LICENSE at the root of this distribution.
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*
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* SPDX-License-Identifier: Apache-2.0 OR MIT
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*
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*/
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#pragma once
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#include <AzCore/Component/Component.h>
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#include <AzCore/Math/Uuid.h>
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#include <GraphCanvas/Components/EntitySaveDataBus.h>
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#include <GraphCanvas/Components/PersistentIdBus.h>
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#include <GraphCanvas/Components/SceneBus.h>
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#include <GraphCanvas/Types/EntitySaveData.h>
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namespace GraphCanvas
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{
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// PersistentIdComponent provides an Id for GraphCanvas objects that will persist across loads/unloads.
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// This enables the ability to not serialize out the entire GraphCanvas object, and instead serialize out only
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// the user configurable information. But still enable things like NodeGroups to maintain some references to
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// specific GraphCanvas objects in order to maintain their state correctly.
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class PersistentIdComponent
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: public AZ::Component
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, public PersistentIdRequestBus::Handler
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, public PersistentMemberRequestBus::Handler
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, public SceneMemberNotificationBus::Handler
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{
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public:
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AZ_COMPONENT(PersistentIdComponent, "{57D546EE-C074-432E-A802-77CFC2E37AE7}", AZ::Component);
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static void Reflect(AZ::ReflectContext* reflectContext);
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PersistentIdComponent();
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~PersistentIdComponent() = default;
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// Component
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void Init() override;
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void Activate() override;
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void Deactivate() override;
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////
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// SceneMemberNotifications
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void OnSceneSet(const AZ::EntityId& graphId) override;
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void OnSceneMemberDeserialized(const AZ::EntityId& graphId, const GraphSerialization& serializationTarget) override;
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////
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// PersistentIdRequestBus
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AZ::EntityId MapToEntityId() const override;
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////
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// PersistentMemberRequestBus
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PersistentGraphMemberId GetPreviousGraphMemberId() const override;
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PersistentGraphMemberId GetPersistentGraphMemberId() const override;
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////
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private:
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PersistentGraphMemberId m_previousId;
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PersistentIdComponentSaveData m_saveData;
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};
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}
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