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79 lines
3.0 KiB
C++
79 lines
3.0 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 <Source/ForceRegionForces.h>
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#include <Source/ForceRegion.h>
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#include <PhysX/ComponentTypeIds.h>
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#include <AzCore/Component/Component.h>
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#include <AzFramework/Physics/Common/PhysicsEvents.h>
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#include <AzFramework/Physics/Common/PhysicsSimulatedBodyEvents.h>
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#include <AzFramework/Entity/EntityDebugDisplayBus.h>
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namespace AzPhysics
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{
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struct TriggerEvent;
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}
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namespace PhysX
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{
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/// ForceRegionComponent
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/// Applies a forces to objects within a region.
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/// Uses a PhysX trigger collider to receive notifications about entities entering and exiting the region.
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/// A net force will be calculated per entity by summing all the attached forces on each tick.
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class ForceRegionComponent
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: public AZ::Component
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, private AzFramework::EntityDebugDisplayEventBus::Handler
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{
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public:
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AZ_COMPONENT(ForceRegionComponent, ForceRegionComponentTypeId);
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static void Reflect(AZ::ReflectContext* context);
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ForceRegionComponent();
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explicit ForceRegionComponent(ForceRegion&& forceRegion, bool debug);
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~ForceRegionComponent() = default;
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protected:
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static void GetRequiredServices(AZ::ComponentDescriptor::DependencyArrayType& required)
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{
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required.push_back(AZ_CRC("TransformService", 0x8ee22c50));
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required.push_back(AZ_CRC("PhysXTriggerService", 0x3a117d7b));
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}
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// Component
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void Activate() override;
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void Deactivate() override;
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// EntityDebugDisplayEventBus
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void DisplayEntityViewport(const AzFramework::ViewportInfo& viewportInfo
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, AzFramework::DebugDisplayRequests& debugDisplayRequests) override;
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private:
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void InitPhysicsTickHandler();
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void PostPhysicsSubTick(float fixedDeltaTime);
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void OnTriggerEnter(const AzPhysics::TriggerEvent& triggerEvent);
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void OnTriggerExit(const AzPhysics::TriggerEvent& triggerEvent);
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AZStd::unordered_set<AZ::EntityId> m_entities; ///< Collection of entity IDs contained within the region.
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ForceRegion m_forceRegion; ///< Calculates the net force.
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bool m_debugForces = false; ///< Draws debug lines for entities in the region
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AzPhysics::SceneEvents::OnSceneSimulationFinishHandler m_sceneFinishSimHandler;
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AzPhysics::SimulatedBodyEvents::OnTriggerEnter::Handler m_onTriggerEnterHandler;
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AzPhysics::SimulatedBodyEvents::OnTriggerExit::Handler m_onTriggerExitHandler;
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};
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}
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