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148 lines
5.8 KiB
C++
148 lines
5.8 KiB
C++
/*
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* Copyright (c) Contributors to the Open 3D Engine Project
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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/Asset/AssetCommon.h>
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#include <AzCore/Component/Component.h>
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#include <AzCore/Component/TransformBus.h>
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#include <AzCore/Math/Aabb.h>
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#include <AzCore/Math/Color.h>
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#include <AzCore/Math/Transform.h>
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#include <LmbrCentral/Shape/ShapeComponentBus.h>
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#include <LmbrCentral/Dependency/DependencyNotificationBus.h>
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#include <Vegetation/DescriptorListAsset.h>
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#include <Vegetation/Ebuses/DescriptorSelectorRequestBus.h>
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#include <Vegetation/Ebuses/FilterRequestBus.h>
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#include <Vegetation/Ebuses/ModifierRequestBus.h>
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#include <Vegetation/Ebuses/InstanceSystemRequestBus.h>
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#include <Vegetation/Ebuses/AreaNotificationBus.h>
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#include <Vegetation/Ebuses/SpawnerRequestBus.h>
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#include <Vegetation/AreaComponentBase.h>
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#include <SurfaceData/SurfaceDataTypes.h>
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#define VEG_SPAWNER_ENABLE_CACHING 0
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#define VEG_SPAWNER_ENABLE_RELATIVE 0
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namespace LmbrCentral
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{
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template<typename, typename>
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class EditorWrappedComponentBase;
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}
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namespace Vegetation
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{
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class SpawnerConfig
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: public AreaConfig
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{
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public:
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AZ_CLASS_ALLOCATOR(SpawnerConfig, AZ::SystemAllocator, 0);
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AZ_RTTI(SpawnerConfig, "{98A6B0CE-FAD0-4108-B019-6B01931E649F}", AreaConfig);
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static void Reflect(AZ::ReflectContext* context);
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bool m_inheritBehavior = true;
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bool m_allowEmptyMeshes = true;
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FilterStage m_filterStage = FilterStage::PreProcess;
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};
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static const AZ::Uuid SpawnerComponentTypeId = "{14BD176C-2E44-4BA6-849A-258674179237}";
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/**
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* Default placement logic for vegetation in an area
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*/
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class SpawnerComponent
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: public AreaComponentBase
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, private SpawnerRequestBus::Handler
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{
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public:
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friend class EditorSpawnerComponent;
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template<typename, typename> friend class LmbrCentral::EditorWrappedComponentBase;
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AZ_COMPONENT(SpawnerComponent, SpawnerComponentTypeId, AreaComponentBase);
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static void GetProvidedServices(AZ::ComponentDescriptor::DependencyArrayType& services);
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static void GetIncompatibleServices(AZ::ComponentDescriptor::DependencyArrayType& services);
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static void GetRequiredServices(AZ::ComponentDescriptor::DependencyArrayType& services);
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static void Reflect(AZ::ReflectContext* context);
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SpawnerComponent(const SpawnerConfig& configuration);
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SpawnerComponent() = default;
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~SpawnerComponent() = default;
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//////////////////////////////////////////////////////////////////////////
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// AZ::Component interface implementation
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void Activate() override;
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void Deactivate() override;
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bool ReadInConfig(const AZ::ComponentConfig* baseConfig) override;
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bool WriteOutConfig(AZ::ComponentConfig* outBaseConfig) const override;
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//////////////////////////////////////////////////////////////////////////
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// AreaRequestBus
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bool PrepareToClaim(EntityIdStack& stackIds) override;
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void ClaimPositions(EntityIdStack& stackIds, ClaimContext& context) override;
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void UnclaimPosition(const ClaimHandle handle) override;
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//////////////////////////////////////////////////////////////////////////
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// AreaInfoBus
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AZ::Aabb GetEncompassingAabb() const override;
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AZ::u32 GetProductCount() const override;
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//////////////////////////////////////////////////////////////////////////
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// AreaNotificationBus
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void OnCompositionChanged() override;
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protected:
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//////////////////////////////////////////////////////////////////////////
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// AreaComponentBase
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void OnRegisterArea() override;
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void OnUnregisterArea() override;
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//////////////////////////////////////////////////////////////////////////
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// SpawnerRequestBus
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AZ::u32 GetAreaPriority() const override;
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void SetAreaPriority(AZ::u32 priority) override;
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AZ::u32 GetAreaLayer() const override;
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void SetAreaLayer(AZ::u32 type) override;
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AZ::u32 GetAreaProductCount() const override;
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bool GetInheritBehavior() const override;
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void SetInheritBehavior(bool value) override;
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bool GetAllowEmptyMeshes() const override;
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void SetAllowEmptyMeshes(bool value) override;
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FilterStage GetFilterStage() const override;
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void SetFilterStage(FilterStage filterStage) override;
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private:
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void ClearSelectableDescriptors();
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bool CreateInstance(const ClaimPoint &point, InstanceData& instanceData);
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bool EvaluateFilters(EntityIdStack& processedIds, InstanceData& instanceData, const FilterStage intendedStage) const;
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bool ProcessInstance(EntityIdStack& processedIds, const ClaimPoint& point, InstanceData& instanceData, DescriptorPtr descriptorPtr);
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bool ClaimPosition(EntityIdStack& processedIds, const ClaimPoint& point, InstanceData& instanceData);
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void DestroyAllInstances();
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void CalcInstanceDebugColor(const EntityIdStack& processedIds);
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SpawnerConfig m_configuration;
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//caching vector for reuse per point
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AZStd::recursive_mutex m_selectableDescriptorMutex;
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DescriptorPtrVec m_selectableDescriptorCache;
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DescriptorPtrVec m_selectedDescriptors;
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using ClaimInstanceMapping = AZStd::unordered_map<ClaimHandle, InstanceId>;
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ClaimInstanceMapping m_claimInstanceMapping;
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mutable AZStd::recursive_mutex m_claimInstanceMappingMutex;
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#if VEG_SPAWNER_ENABLE_CACHING
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// cached data
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AZStd::unordered_map<ClaimHandle, InstanceData> m_acceptedClaimCache;
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AZStd::unordered_set<ClaimHandle> m_rejectedClaimCache;
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mutable AZStd::recursive_mutex m_cacheMutex;
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#endif
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SurfaceData::SurfaceTagVector m_inclusiveTagsToConsider;
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SurfaceData::SurfaceTagVector m_exclusiveTagsToConsider;
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};
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}
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