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Milxnor
2023-03-04 15:06:07 -05:00
commit 039731eb68
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Project Reboot 3.0/UObjectArray.h Normal file
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#pragma once
#include "inc.h"
#include "Object.h"
struct FUObjectItem
{
UObject* Object;
int32 Flags;
int32 ClusterRootIndex;
int32 SerialNumber;
};
class FFixedUObjectArray
{
FUObjectItem* Objects;
int32 MaxElements;
int32 NumElements;
public:
FORCEINLINE int32 Num() const { return NumElements; }
FORCEINLINE int32 Capacity() const { return MaxElements; }
FORCEINLINE bool IsValidIndex(int32 Index) const { return Index < Num() && Index >= 0; }
FORCEINLINE FUObjectItem* GetItemByIndex(int32 Index)
{
if (!IsValidIndex(Index)) return nullptr;
return &Objects[Index];
}
FORCEINLINE UObject* GetObjectByIndex(int32 Index)
{
if (auto Item = GetItemByIndex(Index))
return Item->Object;
return nullptr;
}
};
class FChunkedFixedUObjectArray
{
enum { NumElementsPerChunk = 64 * 1024, };
FUObjectItem** Objects;
FUObjectItem* PreAllocatedObjects;
int32 MaxElements;
int32 NumElements;
int32 MaxChunks;
int32 NumChunks;
public:
FORCEINLINE int32 Num() const { return NumElements; }
FORCEINLINE int32 Capacity() const { return MaxElements; }
FORCEINLINE bool IsValidIndex(int32 Index) const { return Index < Num() && Index >= 0; }
FORCEINLINE FUObjectItem* GetItemByIndex(int32 Index)
{
if (!IsValidIndex(Index)) return nullptr;
const int32 ChunkIndex = Index / NumElementsPerChunk;
const int32 WithinChunkIndex = Index % NumElementsPerChunk;
// checkf(ChunkIndex < NumChunks, TEXT("ChunkIndex (%d) < NumChunks (%d)"), ChunkIndex, NumChunks);
// checkf(Index < MaxElements, TEXT("Index (%d) < MaxElements (%d)"), Index, MaxElements);
FUObjectItem* Chunk = Objects[ChunkIndex];
if (!Chunk)
return nullptr;
return Chunk + WithinChunkIndex;
}
FORCEINLINE UObject* GetObjectByIndex(int32 Index)
{
if (auto Item = GetItemByIndex(Index))
return Item->Object;
return nullptr;
}
};
static inline FChunkedFixedUObjectArray* ChunkedObjects;
static inline FFixedUObjectArray* UnchunkedObjects;
FORCEINLINE UObject* GetObjectByIndex(int32 Index)
{
return ChunkedObjects ? ChunkedObjects->GetObjectByIndex(Index) : UnchunkedObjects->GetObjectByIndex(Index);
}