NavigationSystemHelpers.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "EngineDefines.h"
#include "AI/Navigation/NavigationTypes.h"
#include "Chaos/Core.h"
 
class UBodySetup;
struct FCompositeNavModifier;
struct FKAggregateGeom;
struct FKConvexElem;
struct FNavHeightfieldSamples;
 
template<typename InElementType> class TNavStatArray;
 
namespace Chaos
{
    class FHeightField;
    class FTriangleMeshImplicitObject;
}
 
struct FNavigableGeometryExport
{
    virtual ~FNavigableGeometryExport() {}
 
    virtual void ExportChaosTriMesh(const Chaos::FTriangleMeshImplicitObject* const TriMesh, const FTransform& LocalToWorld) = 0;
    virtual void ExportChaosConvexMesh(const FKConvexElem* const Convex, const FTransform& LocalToWorld) = 0;
    virtual void ExportChaosHeightField(const Chaos::FHeightField* const Heightfield, const FTransform& LocalToWorld) = 0;
    virtual void ExportChaosHeightFieldSlice(const FNavHeightfieldSamples& PrefetchedHeightfieldSamples, const int32 NumRows, const int32 NumCols, const FTransform& LocalToWorld, const FBox& SliceBox) = 0;
    virtual void ExportRigidBodySetup(UBodySetup& BodySetup, const FTransform& LocalToWorld) = 0;
    virtual void ExportCustomMesh(const FVector* VertexBuffer, int32 NumVerts, const int32* IndexBuffer, int32 NumIndices, const FTransform& LocalToWorld) = 0;
    
    virtual void AddNavModifiers(const FCompositeNavModifier& Modifiers) = 0;
 
    // Optional delegate for geometry per instance transforms
    virtual void SetNavDataPerInstanceTransformDelegate(const FNavDataPerInstanceTransformDelegate& InDelegate) = 0;
};