alexpete
60 lines
2.2 KiB
C++
60 lines
2.2 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#pragma once
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#include <AzCore/Component/EntityId.h>
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#include <AzCore/std/containers/vector.h>
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#include <AzCore/std/optional.h>
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#include <AzFramework/Visibility/VisibilityDebug.h>
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#include <AzFramework/Viewport/CameraState.h>
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namespace AzFramework
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{
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//! Utility class to encapsulate entity visibility queries against the view frustum.
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class EntityVisibilityQuery
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{
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public:
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EntityVisibilityQuery() = default;
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EntityVisibilityQuery(const EntityVisibilityQuery&) = default;
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EntityVisibilityQuery& operator=(const EntityVisibilityQuery&) = default;
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EntityVisibilityQuery(EntityVisibilityQuery&&) = default;
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EntityVisibilityQuery& operator=(EntityVisibilityQuery&&) = default;
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~EntityVisibilityQuery() = default;
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void UpdateVisibility(const AzFramework::CameraState& cameraState);
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void DisplayVisibility(AzFramework::DebugDisplayRequests& debugDisplay);
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using EntityIds = AZStd::vector<AZ::EntityId>;
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using EntityIdIterator = EntityIds::iterator;
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using ConstEntityIdIterator = EntityIds::const_iterator;
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ConstEntityIdIterator Begin() const;
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ConstEntityIdIterator End() const;
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private:
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EntityIds m_visibleEntityIds;
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AZStd::optional<AzFramework::CameraState> m_lastCameraState;
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AzFramework::OctreeDebug m_octreeDebug;
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};
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inline EntityVisibilityQuery::ConstEntityIdIterator EntityVisibilityQuery::Begin() const
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{
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return m_visibleEntityIds.cbegin();
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}
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inline EntityVisibilityQuery::ConstEntityIdIterator EntityVisibilityQuery::End() const
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{
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return m_visibleEntityIds.cend();
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}
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} // namespace AzFramework
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