46 lines
1 KiB
C
46 lines
1 KiB
C
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// Copyright 2020 Phyronnaz
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#pragma once
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#include "CoreMinimal.h"
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#include "VoxelRender/VoxelMaterialIndices.h"
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class FVoxelMaterialInterface;
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struct FVoxelChunkMaterials
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{
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public:
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FVoxelChunkMaterials() = default;
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template<typename T>
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TVoxelSharedRef<FVoxelMaterialInterface> FindOrAddSingle(T Create)
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{
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if (!SingleMaterial.IsValid())
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{
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const TVoxelSharedRef<FVoxelMaterialInterface> NewMaterial = Create();
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SingleMaterial = NewMaterial;
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}
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return SingleMaterial.ToSharedRef();
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}
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template<typename T>
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TVoxelSharedRef<FVoxelMaterialInterface> FindOrAddMultiple(const FVoxelMaterialIndices& Key, T Create)
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{
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auto* Result = Materials.Find(Key);
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if (!Result)
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{
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const TVoxelSharedRef<FVoxelMaterialInterface> NewMaterial = Create();
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Result = &Materials.Add(Key, NewMaterial);
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}
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return Result->ToSharedRef();
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}
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void Reset()
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{
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SingleMaterial.Reset();
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Materials.Empty();
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}
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private:
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TVoxelSharedPtr<FVoxelMaterialInterface> SingleMaterial;
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TMap<FVoxelMaterialIndices, TVoxelSharedPtr<FVoxelMaterialInterface>> Materials;
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};
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