RecastGeometryExport.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
#pragma once
 
#include "AI/NavigationSystemHelpers.h"
#include "Engine/EngineTypes.h"
 
struct FNavigationRelevantData;
struct FNavigationElement;
 
#if WITH_RECAST
 
struct FRecastGeometryExport : public FNavigableGeometryExport
{
    NAVIGATIONSYSTEM_API FRecastGeometryExport(FNavigationRelevantData& InData);
 
    FNavigationRelevantData* Data;
    TNavStatArray<FVector::FReal> VertexBuffer;
    TNavStatArray<int32> IndexBuffer;
    FWalkableSlopeOverride SlopeOverride;
 
    NAVIGATIONSYSTEM_API virtual void ExportChaosTriMesh(const Chaos::FTriangleMeshImplicitObject* const TriMesh, const FTransform& LocalToWorld) override;
    NAVIGATIONSYSTEM_API virtual void ExportChaosConvexMesh(const FKConvexElem* const Convex, const FTransform& LocalToWorld) override;
    NAVIGATIONSYSTEM_API virtual void ExportChaosHeightField(const Chaos::FHeightField* const Heightfield, const FTransform& LocalToWorld) override;
    NAVIGATIONSYSTEM_API virtual void ExportChaosHeightFieldSlice(const FNavHeightfieldSamples& PrefetchedHeightfieldSamples, const int32 NumRows, const int32 NumCols, const FTransform& LocalToWorld, const FBox& SliceBox) override;
    NAVIGATIONSYSTEM_API virtual void ExportCustomMesh(const FVector* InVertices, int32 NumVerts, const int32* InIndices, int32 NumIndices, const FTransform& LocalToWorld) override;
    NAVIGATIONSYSTEM_API virtual void ExportRigidBodySetup(UBodySetup& BodySetup, const FTransform& LocalToWorld) override;
    NAVIGATIONSYSTEM_API virtual void AddNavModifiers(const FCompositeNavModifier& Modifiers) override;
    NAVIGATIONSYSTEM_API virtual void SetNavDataPerInstanceTransformDelegate(const FNavDataPerInstanceTransformDelegate& InDelegate) override;
 
    NAVIGATIONSYSTEM_API void ConvertVertexBufferToRecast();
    NAVIGATIONSYSTEM_API void StoreCollisionCache();
 
    static NAVIGATIONSYSTEM_API void ExportElementGeometry(const FNavigationElement& InElement, FNavigationRelevantData& OutData);
 
    static NAVIGATIONSYSTEM_API void ExportVertexSoupGeometry(const TArray<FVector>& InVerts, FNavigationRelevantData& OutData);
 
    static NAVIGATIONSYSTEM_API void ExportRigidBodyGeometry(UBodySetup& InOutBodySetup,
        TNavStatArray<FVector>& OutVertexBuffer,
        TNavStatArray<int32>& OutIndexBuffer,
        FBox& OutBounds,
        const FTransform& LocalToWorld = FTransform::Identity);
 
    static NAVIGATIONSYSTEM_API void ExportRigidBodyGeometry(
        UBodySetup& InOutBodySetup,
        TNavStatArray<FVector>& OutTriMeshVertexBuffer,
        TNavStatArray<int32>& OutTriMeshIndexBuffer,
        TNavStatArray<FVector>& OutConvexVertexBuffer,
        TNavStatArray<int32>& OutConvexIndexBuffer,
        TNavStatArray<int32>& OutShapeBuffer,
        FBox& OutBounds,
        const FTransform& LocalToWorld = FTransform::Identity);
 
    static NAVIGATIONSYSTEM_API void ExportAggregatedGeometry(
        const FKAggregateGeom& AggGeom,
        TNavStatArray<FVector>& OutConvexVertexBuffer,
        TNavStatArray<int32>& OutConvexIndexBuffer,
        TNavStatArray<int32>& OutShapeBuffer,
        FBox& OutBounds,
        const FTransform& LocalToWorld = FTransform::Identity);
 
    static NAVIGATIONSYSTEM_API void TransformVertexSoupToRecast(const TArray<FVector>& VertexSoup, TNavStatArray<FVector>& Verts, TNavStatArray<int32>& Faces);
 
private:
    FString GetDataOwnerName() const;
};
 
#endif // WITH_RECAST