89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#pragma once
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#include "CoreMinimal.h"
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#include "ShapeApproximation/SimpleShapeSet3.h"
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#include "Engine/StaticMesh.h"
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#include "PhysicsEngine/AggregateGeom.h"
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#define UE_API MODELINGCOMPONENTS_API
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class UActorComponent;
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class UBodySetup;
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/**
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* FPhysicsDataCollection holds onto physics-system data that is needed for various interactive tools and algorithms.
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* Currently this is split into two parts, pointers to the owning physics state, and collision geometry data.
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*
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* The collision geometry data is stored in both the editable GeometryProcessing format and the
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* physics-system representations (currently FKAggregateGeom but more are expected).
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* This class provides a high-level API for transferring geometry between these two representations.
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*/
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class FPhysicsDataCollection
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{
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public:
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//
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// External State Data
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//
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/** The Component this physics data came from / is for */
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TWeakObjectPtr<const UActorComponent> SourceComponent;
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/** The StaticMesh this physics data came from / is for */
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TWeakObjectPtr<const UStaticMesh> SourceStaticMesh;
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/** The BodySetup in use by the SourceComponent */
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TWeakObjectPtr<const UBodySetup> BodySetup;
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/** Scaling factor applied to the SourceComponent, which should be transferred to Collision Geometry in some cases */
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FVector ExternalScale3D = FVector::OneVector;
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//
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// Geometry data
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//
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/**
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* Stores representation of Collision geometry
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*/
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UE::Geometry::FSimpleShapeSet3d Geometry;
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/**
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* Collision geometry in Physics-system format. Not necessarily in sync with Geometry member.
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*/
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FKAggregateGeom AggGeom;
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/**
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* Initialize from the given Component, and optionally initialize internal geometry members
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*/
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UE_API void InitializeFromComponent(const UActorComponent* Component, bool bInitializeAggGeom);
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/**
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* Initialize from the given StaticMesh, and optionally initialize internal geometry members
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*/
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UE_API void InitializeFromStaticMesh(const UStaticMesh* StaticMesh, bool bInitializeAggGeom);
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/**
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* Initialize
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*/
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UE_API void InitializeFromExisting(const FPhysicsDataCollection& Other);
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/**
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* replace our geometry data with that from another FPhysicsDataCollection
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*/
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UE_API void CopyGeometryFromExisting(const FPhysicsDataCollection& Other);
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/**
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* Empty out our FKAggregateGeom
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*/
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UE_API void ClearAggregate();
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/**
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* Populate our FKAggregateGeom from our FSimpleShapeSet3d
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*/
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UE_API void CopyGeometryToAggregate();
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};
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#undef UE_API
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