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124 lines
4.8 KiB
C++
124 lines
4.8 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/TransformBus.h>
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#include <AzToolsFramework/ToolsComponents/EditorComponentBase.h>
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#include <AzToolsFramework/Entity/EditorEntityContextBus.h>
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#include <AzToolsFramework/API/EntityCompositionNotificationBus.h>
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#include <LmbrCentral/Shape/ShapeComponentBus.h>
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#include <LmbrCentral/Ai/NavigationAreaBus.h>
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#include <AzCore/Component/TickBus.h>
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// ISerialize.h required by INavigationSystem.h
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#include <ISerialize.h>
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#include <INavigationSystem.h>
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namespace AZ
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{
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class PolygonPrism;
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class SerializeContext;
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class Vector3;
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}
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namespace LmbrCentral
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{
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/**
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* EditorNavigationAreaComponent makes use of PolygonPrismShape to construct a volume to generate
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* a Nav Mesh for the terrain to be used by AI characters for navigation.
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*/
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class EditorNavigationAreaComponent
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: public AzToolsFramework::Components::EditorComponentBase
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, public INavigationSystem::INavigationSystemListener
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, private ShapeComponentNotificationsBus::Handler
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, private AZ::TransformNotificationBus::Handler
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, private NavigationAreaRequestBus::Handler
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, private AzToolsFramework::EditorEntityContextNotificationBus::Handler
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, private AzToolsFramework::EntityCompositionNotificationBus::Handler
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, private AZ::TickBus::Handler
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{
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public:
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AZ_COMPONENT(EditorNavigationAreaComponent, "{8391FF77-7F4E-4576-9617-37793F88C5DA}", AzToolsFramework::Components::EditorComponentBase);
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EditorNavigationAreaComponent();
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~EditorNavigationAreaComponent() override;
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protected:
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// AZ::Component
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void Activate() override;
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void Deactivate() override;
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private:
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// ShapeComponentNotificationsBus::Handler
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void OnShapeChanged(ShapeChangeReasons changeReason) override;
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// TransformNotificationBus
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void OnTransformChanged(const AZ::Transform& local, const AZ::Transform& world) override;
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// NavigationAreaRequestBus
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void RefreshArea() override;
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// INavigationSystemListener
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void OnNavigationEvent(const INavigationSystem::ENavigationEvent event) override;
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// EditorNavigationAreaComponent
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void UpdateGameArea();
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void RelinkWithMesh(bool updateGameArea);
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void UpdateMeshes();
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void ApplyExclusion();
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void DestroyVolume();
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void DestroyMeshes();
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void CreateVolume(AZ::Vector3* vertices, size_t vertexCount, NavigationVolumeID requestedID);
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void DestroyArea();
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// EditorEntityContextNotificationBus
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void OnStartPlayInEditorBegin() override;
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// EntityCompositionNotificationBus
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void OnEntityCompositionChanging(const AzToolsFramework::EntityIdList& entityIds) override;
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void OnEntityCompositionChanged(const AzToolsFramework::EntityIdList& entityIds) override;
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// TickBus
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void OnTick(float deltaTime, AZ::ScriptTimePoint time) override;
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static void GetProvidedServices(AZ::ComponentDescriptor::DependencyArrayType& provided)
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{
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provided.push_back(AZ_CRC("NavigationAreaService", 0xd6ec6566));
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}
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static void GetRequiredServices(AZ::ComponentDescriptor::DependencyArrayType& required)
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{
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required.push_back(AZ_CRC("PolygonPrismShapeService", 0x1cbc4ed4));
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}
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static void Reflect(AZ::ReflectContext* context);
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/**
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* Called when editor property grid values are modified to ensure navigation area updates correctly.
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*/
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void OnNavigationAreaChanged() const
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{
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if (m_navigationAreaChanged)
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{
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m_navigationAreaChanged();
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}
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}
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AZStd::vector<AZStd::string> m_agentTypes; ///< Define a list of AgentTypes corresponding to those defined in Scripts/AI/Navigation.xml.
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AZStd::vector<AZ::u32> m_meshes; ///< NavigationMeshID - vector of mesh ids for each AgentType.
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AZStd::string m_name; ///< Name used to register volume (currently Entity name).
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AZ::u32 m_volume = 0; ///< NavigationVolumeID - id of created nav mesh volume.
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bool m_exclusion = false; ///< Is this area an exclusion volume or not (should it add or subtract from the nav mesh).
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AZStd::function<void()> m_navigationAreaChanged = nullptr; ///< Callback when the navigation area is modified.
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bool m_switchingToGameMode = false; ///< Set if GameView was started so we know not to destroy navigation areas in Deactivate.
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bool m_compositionChanging = false; ///< Set if composition is changing so we know not to destroy navigation areas while scrubbing.
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};
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} // namespace LmbrCentral
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