RecastNavMeshDataChunk.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#if UE_ENABLE_INCLUDE_ORDER_DEPRECATED_IN_5_4
#include "CoreMinimal.h"
#endif
#include "UObject/ObjectMacros.h"
#if UE_ENABLE_INCLUDE_ORDER_DEPRECATED_IN_5_4
#include "AI/Navigation/NavigationTypes.h"
#endif
#include "AI/Navigation/NavigationDataChunk.h"
#include "NavMesh/RecastNavMesh.h"
#include "RecastNavMeshDataChunk.generated.h"
 
class FPImplRecastNavMesh;
 
struct FRecastTileData
{
    struct FRawData
    {
        FRawData(uint8* InData);
        ~FRawData();
 
        uint8* RawData;
    };
 
    FRecastTileData();
    FRecastTileData(int32 TileDataSize, uint8* TileRawData, int32 TileCacheDataSize, uint8* TileCacheRawData);
    
    // Location of attached tile
    int32                   OriginalX;  // Tile X coordinates when gathered
    int32                   OriginalY;  // Tile Y coordinates when gathered
    int32                   X;                  
    int32                   Y;                  
    int32                   Layer;
        
    // Tile data
    int32                   TileDataSize;
    TSharedPtr<FRawData>    TileRawData;
 
    // Compressed tile cache layer 
    int32                   TileCacheDataSize;
    TSharedPtr<FRawData>    TileCacheRawData;
 
    // Whether this tile is attached to NavMesh
    bool                    bAttached;  
};
 
class dtNavMesh;
class FPImplRecastNavMesh;
 
enum EGatherTilesCopyMode
{
    NoCopy = 0,
    CopyData = 1 << 0,
    CopyCacheData = 1 << 1,
    CopyDataAndCacheData = (CopyData | CopyCacheData)
};
 
UCLASS(MinimalAPI)
class URecastNavMeshDataChunk : public UNavigationDataChunk
{
    GENERATED_UCLASS_BODY()
 
    //~ Begin UObject Interface
    NAVIGATIONSYSTEM_API virtual void Serialize(FArchive& Ar) override;
    //~ End UObject Interface
 
#if WITH_RECAST
    NAVIGATIONSYSTEM_API TArray<FNavTileRef> AttachTiles(ARecastNavMesh& NavMesh);
 
    NAVIGATIONSYSTEM_API TArray<FNavTileRef> AttachTiles(ARecastNavMesh& NavMesh, const bool bKeepCopyOfData, const bool bKeepCopyOfCacheData);
 
    NAVIGATIONSYSTEM_API TArray<FNavTileRef> DetachTiles(ARecastNavMesh& NavMesh);
 
    NAVIGATIONSYSTEM_API TArray<FNavTileRef> DetachTiles(ARecastNavMesh& NavMesh, const bool bTakeDataOwnership, const bool bTakeCacheDataOwnership);
#endif // WITH_RECAST
 
    NAVIGATIONSYSTEM_API void MoveTiles(FPImplRecastNavMesh& NavMeshImpl, const FIntPoint& Offset, const FVector::FReal RotationDeg, const FVector2D& RotationCenter);
    
    NAVIGATIONSYSTEM_API int32 GetNumTiles() const;
 
    const TArray<FRecastTileData>& GetTiles() const { return Tiles; }
 
    UE_DEPRECATED(5.5, "Use the version of this function that takes an array of FNavTileRefs instead.")
    NAVIGATIONSYSTEM_API void GetTilesBounds(const FPImplRecastNavMesh& NavMeshImpl, const TArray<int32>& TileIndices, FBox& OutBounds) const;
 
#if WITH_RECAST
    NAVIGATIONSYSTEM_API void GetTilesBounds(const FPImplRecastNavMesh& NavMeshImpl, const TArray<FNavTileRef>& TileRefs, FBox& OutBounds) const;
#endif // WITH_RECAST
 
    TArray<FRecastTileData>& GetMutableTiles() { return Tiles; }
 
    NAVIGATIONSYSTEM_API void ReleaseTiles();
 
    UE_DEPRECATED(5.5, "Use the version of this function that takes an array of FNavTileRefs instead.")
    NAVIGATIONSYSTEM_API void GetTiles(const FPImplRecastNavMesh* NavMeshImpl, const TArray<int32>& TileIndices, const EGatherTilesCopyMode CopyMode, const bool bMarkAsAttached = true);
 
#if WITH_RECAST
    NAVIGATIONSYSTEM_API void GetTiles(const FPImplRecastNavMesh* NavMeshImpl, const TArray<FNavTileRef>& TileRefs, const EGatherTilesCopyMode CopyMode, const bool bMarkAsAttached = true);
#endif // WITH_RECAST
 
private:
#if WITH_RECAST
    NAVIGATIONSYSTEM_API void SerializeRecastData(FArchive& Ar, int32 NavMeshVersion);
#endif//WITH_RECAST
 
private:
    TArray<FRecastTileData> Tiles;
};